sdl-ios-xcode: touchTest/gestureTest.c annotate

annotate touchTest/gestureTest.c @ 4665:c2493813a2f4

Merged changes

author	Jim Grandpre <jim.tla@gmail.com>
date	Fri, 16 Jul 2010 20:53:44 -0400
parents	b5007b7995c6
children

rev	line source
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	1 #include <stdio.h>
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	2 #include <SDL.h>
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	3 #include <math.h>
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	4 #include <SDL_touch.h>
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	5
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	6 #define PI 3.1415926535897
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	7 #define PHI ((sqrt(5)-1)/2)
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	8 #define WIDTH 640
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	9 #define HEIGHT 480
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	10 #define BPP 4
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	11 #define DEPTH 32
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	12
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	13 #define MAXFINGERS 3
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	14
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	15 #define DOLLARNPOINTS 64
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	16 #define DOLLARSIZE 256
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	17
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	18 //MUST BE A POWER OF 2!
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	19 #define EVENT_BUF_SIZE 256
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	20
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	21 SDL_Event events[EVENT_BUF_SIZE];
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	22 int eventWrite;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	23
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	24 int mousx,mousy;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	25 int keystat[512];
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	26 int bstatus;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	27
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	28 int colors[7] = {0xFF,0xFF00,0xFF0000,0xFFFF00,0x00FFFF,0xFF00FF,0xFFFFFF};
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	29
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	30 int index2fingerid[MAXFINGERS];
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	31 int fingersDown;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	32
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	33 typedef struct {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	34 float x,y;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	35 } Point;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	36
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	37 typedef struct {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	38 Point p;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	39 float pressure;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	40 int id;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	41 } Finger;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	42
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	43 typedef struct {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	44 Finger f;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	45 Point cv;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	46 float dtheta,dDist;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	47 } TouchPoint;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	48
4653 744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	49 typedef struct { //dt + s
744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	50 Point d,s; //direction, start
744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	51 int points;
744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	52 } Line;
744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	53
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	54
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	55 typedef struct {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	56 float length;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	57
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	58 int numPoints;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	59 Point p[EVENT_BUF_SIZE]; //To be safe
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	60 } DollarPath;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	61
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	62 typedef struct {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	63 float ang,r;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	64 Point p;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	65 } Knob;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	66
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	67 Knob knob;
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	68
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	69 Finger finger[MAXFINGERS];
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	70
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	71
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	72 DollarPath dollarPath[MAXFINGERS];
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	73
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	74 #define MAXTEMPLATES 4
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	75
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	76 Point dollarTemplate[MAXTEMPLATES][DOLLARNPOINTS];
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	77 int numDollarTemplates = 0;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	78 #ifdef DRAW_VECTOR_EST
4653 744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	79 Line gestureLine[MAXFINGERS];
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	80 #endif
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	81
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	82 void handler (int sig)
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	83 {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	84 printf ("\exiting...(%d)\n", sig);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	85 exit (0);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	86 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	87
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	88 void perror_exit (char *error)
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	89 {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	90 perror (error);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	91 handler (9);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	92 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	93
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	94
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	95 void setpix(SDL_Surface *screen, int x, int y, unsigned int col)
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	96 {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	97 Uint32 *pixmem32;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	98 Uint32 colour;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	99
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	100 if((unsigned)x > screen->w) return;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	101 if((unsigned)y > screen->h) return;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	102
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	103 pixmem32 = (Uint32) screen->pixels + yscreen->pitch/BPP + x;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	104
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	105 Uint8 r,g,b;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	106 float a;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	107
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	108 memcpy(&colour,pixmem32,screen->format->BytesPerPixel);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	109
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	110 SDL_GetRGB(colour,screen->format,&r,&g,&b); //Always returns 0xFFFFFF?
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	111 //r = 0;g = 0; b = 0;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	112 a = (col>>24)&0xFF;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	113 if(a == 0) a = 0xFF; //Hack, to make things easier.
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	114 a /= 0xFF;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	115 r = r(1-a) + ((col>>16)&0xFF)(a);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	116 g = g(1-a) + ((col>> 8)&0xFF)(a);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	117 b = b(1-a) + ((col>> 0)&0xFF)(a);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	118 colour = SDL_MapRGB( screen->format,r, g, b);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	119
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	120
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	121 *pixmem32 = colour;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	122 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	123
4653 744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	124 void drawLine(SDL_Surface *screen,int x0,int y0,int x1,int y1,unsigned int col) {
744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	125 float t;
744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	126 for(t=0;t<1;t+=1.f/SDL_max(abs(x0-x1),abs(y0-y1)))
744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	127 setpix(screen,x1+t(x0-x1),y1+t(y0-y1),col);
744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	128 }
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	129 void drawCircle(SDL_Surface* screen,int x,int y,int r,unsigned int c)
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	130 {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	131
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	132 float a;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	133 int tx;
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	134
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	135 int ty;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	136 float xr;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	137 for(ty = -abs(r);ty <= abs(r);ty++) {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	138 xr = sqrt(rr - tyty);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	139 if(r > 0) { //r > 0 ==> filled circle
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	140 for(tx=-xr+.5;tx<=xr-.5;tx++) {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	141 setpix(screen,x+tx,y+ty,c);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	142 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	143 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	144 else {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	145 setpix(screen,x-xr+.5,y+ty,c);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	146 setpix(screen,x+xr-.5,y+ty,c);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	147 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	148 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	149 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	150
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	151 void drawKnob(SDL_Surface* screen,Knob k) {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	152 printf("Knob: x = %f, y = %f, r = %f, a = %f\n",k.p.x,k.p.y,k.r,k.ang);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	153
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	154 drawCircle(screen,k.p.xscreen->w,k.p.yscreen->h,k.r*screen->w,0xFFFFFF);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	155
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	156 drawCircle(screen,(k.p.x+k.r/2cos(k.ang))screen->w,
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	157 (k.p.y+k.r/2sin(k.ang))screen->h,k.r/4*screen->w,0);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	158
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	159 }
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	160
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	161 void drawDollarPath(SDL_Surface* screen,Point* points,int numPoints,
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	162 int rad,unsigned int col){
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	163 int i;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	164 for(i=0;i<numPoints;i++) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	165 drawCircle(screen,points[i].x+screen->w/2,
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	166 points[i].y+screen->h/2,
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	167 rad,col);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	168 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	169 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	170
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	171 float dollarDifference(Point* points,Point* templ,float ang) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	172 // Point p[DOLLARNPOINTS];
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	173 float dist = 0;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	174 Point p;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	175 int i;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	176 for(i = 0; i < DOLLARNPOINTS; i++) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	177 p.x = points[i].x * cos(ang) - points[i].y * sin(ang);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	178 p.y = points[i].x * sin(ang) + points[i].y * cos(ang);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	179 dist += sqrt((p.x-templ[i].x)*(p.x-templ[i].x)+
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	180 (p.y-templ[i].y)*(p.y-templ[i].y));
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	181 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	182 return dist/DOLLARNPOINTS;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	183
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	184 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	185
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	186 float bestDollarDifference(Point* points,Point* templ) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	187 //------------BEGIN DOLLAR BLACKBOX----------------//
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	188 //-TRANSLATED DIRECTLY FROM PSUDEO-CODE AVAILABLE AT-//
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	189 //-"http://depts.washington.edu/aimgroup/proj/dollar/"-//
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	190 float ta = -PI/4;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	191 float tb = PI/4;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	192 float dt = PI/90;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	193 float x1 = PHIta + (1-PHI)tb;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	194 float f1 = dollarDifference(points,templ,x1);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	195 float x2 = (1-PHI)ta + PHItb;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	196 float f2 = dollarDifference(points,templ,x2);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	197 while(abs(ta-tb) > dt) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	198 if(f1 < f2) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	199 tb = x2;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	200 x2 = x1;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	201 f2 = f1;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	202 x1 = PHIta + (1-PHI)tb;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	203 f1 = dollarDifference(points,templ,x1);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	204 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	205 else {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	206 ta = x1;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	207 x1 = x2;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	208 f1 = f2;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	209 x2 = (1-PHI)ta + PHItb;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	210 f2 = dollarDifference(points,templ,x2);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	211 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	212 }
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	213 /*
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	214 if(f1 <= f2)
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	215 printf("Min angle (x1): %f\n",x1);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	216 else if(f1 > f2)
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	217 printf("Min angle (x2): %f\n",x2);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	218 */
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	219 return SDL_min(f1,f2);
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	220 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	221
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	222 float dollarRecognize(SDL_Surface* screen, DollarPath path,int *bestTempl) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	223
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	224 Point points[DOLLARNPOINTS];
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	225 int numPoints = dollarNormalize(path,points);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	226 int i;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	227
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	228 int k;
4655 4c94f2023d62 Fixed bugs in input, cleaned up $1 Jim Grandpre <jim.tla@gmail.com> parents: 4654 diff changeset	229 /*
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	230 for(k = 0;k<DOLLARNPOINTS;k++) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	231 printf("(%f,%f)\n",points[k].x,
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	232 points[k].y);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	233 }
4655 4c94f2023d62 Fixed bugs in input, cleaned up $1 Jim Grandpre <jim.tla@gmail.com> parents: 4654 diff changeset	234 */
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	235 drawDollarPath(screen,points,numPoints,-15,0xFF6600);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	236
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	237 int bestDiff = 10000;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	238 *bestTempl = -1;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	239 for(i = 0;i < numDollarTemplates;i++) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	240 int diff = bestDollarDifference(points,dollarTemplate[i]);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	241 if(diff < bestDiff) {bestDiff = diff; *bestTempl = i;}
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	242 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	243 return bestDiff;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	244 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	245
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	246 //DollarPath contains raw points, plus (possibly) the calculated length
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	247 int dollarNormalize(DollarPath path,Point *points) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	248 int i;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	249 //Calculate length if it hasn't already been done
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	250 if(path.length <= 0) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	251 for(i=1;i<path.numPoints;i++) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	252 float dx = path.p[i ].x -
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	253 path.p[i-1].x;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	254 float dy = path.p[i ].y -
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	255 path.p[i-1].y;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	256 path.length += sqrt(dxdx+dydy);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	257 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	258 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	259
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	260
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	261 //Resample
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	262 float interval = path.length/(DOLLARNPOINTS - 1);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	263 float dist = 0;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	264
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	265 int numPoints = 0;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	266 Point centroid; centroid.x = 0;centroid.y = 0;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	267 //printf("(%f,%f)\n",path.p[path.numPoints-1].x,path.p[path.numPoints-1].y);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	268 for(i = 1;i < path.numPoints;i++) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	269 float d = sqrt((path.p[i-1].x-path.p[i].x)*(path.p[i-1].x-path.p[i].x)+
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	270 (path.p[i-1].y-path.p[i].y)*(path.p[i-1].y-path.p[i].y));
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	271 //printf("d = %f dist = %f/%f\n",d,dist,interval);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	272 while(dist + d > interval) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	273 points[numPoints].x = path.p[i-1].x +
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	274 ((interval-dist)/d)*(path.p[i].x-path.p[i-1].x);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	275 points[numPoints].y = path.p[i-1].y +
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	276 ((interval-dist)/d)*(path.p[i].y-path.p[i-1].y);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	277 centroid.x += points[numPoints].x;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	278 centroid.y += points[numPoints].y;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	279 numPoints++;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	280
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	281 dist -= interval;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	282 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	283 dist += d;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	284 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	285 if(numPoints < 1) return 0;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	286 centroid.x /= numPoints;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	287 centroid.y /= numPoints;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	288
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	289 //printf("Centroid (%f,%f)",centroid.x,centroid.y);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	290 //Rotate Points so point 0 is left of centroid and solve for the bounding box
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	291 float xmin,xmax,ymin,ymax;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	292 xmin = centroid.x;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	293 xmax = centroid.x;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	294 ymin = centroid.y;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	295 ymax = centroid.y;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	296
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	297 float ang = atan2(centroid.y - points[0].y,
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	298 centroid.x - points[0].x);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	299
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	300 for(i = 0;i<numPoints;i++) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	301 float px = points[i].x;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	302 float py = points[i].y;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	303 points[i].x = (px - centroid.x)*cos(ang) -
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	304 (py - centroid.y)*sin(ang) + centroid.x;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	305 points[i].y = (px - centroid.x)*sin(ang) +
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	306 (py - centroid.y)*cos(ang) + centroid.y;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	307
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	308
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	309 if(points[i].x < xmin) xmin = points[i].x;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	310 if(points[i].x > xmax) xmax = points[i].x;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	311 if(points[i].y < ymin) ymin = points[i].y;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	312 if(points[i].y > ymax) ymax = points[i].y;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	313 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	314
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	315 //Scale points to DOLLARSIZE, and translate to the origin
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	316 float w = xmax-xmin;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	317 float h = ymax-ymin;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	318
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	319 for(i=0;i<numPoints;i++) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	320 points[i].x = (points[i].x - centroid.x)*DOLLARSIZE/w;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	321 points[i].y = (points[i].y - centroid.y)*DOLLARSIZE/h;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	322 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	323 return numPoints;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	324 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	325
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	326 void DrawScreen(SDL_Surface* screen, int h)
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	327 {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	328 int x, y, xm,ym,c;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	329 if(SDL_MUSTLOCK(screen))
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	330 {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	331 if(SDL_LockSurface(screen) < 0) return;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	332 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	333 for(y = 0; y < screen->h; y++ )
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	334 {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	335 for( x = 0; x < screen->w; x++ )
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	336 {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	337 //setpixel(screen, x, y, (xx)/256+3y+h, (y*y)/256+x+h, h);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	338 //xm = (x+h)%screen->w;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	339 //ym = (y+h)%screen->w;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	340 //c = sin(h/2562PI)xy/screen->w/screen->h;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	341 //setpix(screen,x,y,255sin(xm/screen->w2PI),sin(h/2552PI)255*y/screen->h,c);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	342 setpix(screen,x,y,((x%255)<<16) + ((y%255)<<8) + (x+y)%255);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	343 //setpix(screen,x,y,0); //Inefficient, but that's okay...
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	344 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	345 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	346 drawCircle(screen,mousx,mousy,-30,0xFFFFFF);
4653 744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	347 drawLine(screen,0,0,screen->w,screen->h,0xFFFFFF);
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	348
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	349 int i;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	350 //draw Touch History
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	351 TouchPoint gestureLast[MAXFINGERS];
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	352 //printf("------------------Start History------------------\n");
4653 744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	353 for(i = 0;i < MAXFINGERS;i++) {
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	354 gestureLast[i].f.id = -1;
4653 744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	355 }
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	356 int numDownFingers = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	357 Point centroid;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	358 float gdtheta,gdDist;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	359
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	360
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	361 for(i = SDL_max(0,eventWrite - EVENT_BUF_SIZE);i < eventWrite;i++) {
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	362 SDL_Event event = events[i&(EVENT_BUF_SIZE-1)];
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	363 int age = eventWrite - i - 1;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	364 if(event.type == SDL_FINGERMOTION \|\|
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	365 event.type == SDL_FINGERDOWN \|\|
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	366 event.type == SDL_FINGERUP) {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	367 SDL_Touch* inTouch = SDL_GetTouch(event.tfinger.touchId);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	368 //SDL_Finger* inFinger = SDL_GetFinger(inTouch,event.tfinger.fingerId);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	369
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	370 float x = ((float)event.tfinger.x)/inTouch->xres;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	371 float y = ((float)event.tfinger.y)/inTouch->yres;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	372 int j,empty = -1;
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	373
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	374 for(j = 0;j<MAXFINGERS;j++) {
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	375 if(gestureLast[j].f.id == event.tfinger.fingerId) {
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	376 if(event.type == SDL_FINGERUP) {
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	377 numDownFingers--;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	378 if(numDownFingers <= 1) {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	379 gdtheta = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	380 gdDist = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	381 }
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	382 if(!keystat[32]){ //spacebar
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	383 int bestTempl;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	384 float error = dollarRecognize(screen,dollarPath[j],&bestTempl);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	385 if(bestTempl >= 0){
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	386 drawDollarPath(screen,dollarTemplate[bestTempl]
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	387 ,DOLLARNPOINTS,-15,0x0066FF);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	388 printf("Dollar error: %f\n",error);
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	389 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	390
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	391 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	392 else if(numDollarTemplates < MAXTEMPLATES) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	393
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	394 dollarNormalize(dollarPath[j],
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	395 dollarTemplate[numDollarTemplates]);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	396 /*
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	397 int k;
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	398 for(k = 0;k<DOLLARNPOINTS;k++) {
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	399 printf("(%f,%f)\n",dollarTemplate[numDollarTemplates][i].x,
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	400 dollarTemplate[numDollarTemplates][i].y);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	401 }*/
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	402 numDollarTemplates++;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	403 }
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	404
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	405 gestureLast[j].f.id = -1;
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	406 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	407 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	408 else {
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	409 dollarPath[j].p[dollarPath[j].numPoints].x = x;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	410 dollarPath[j].p[dollarPath[j].numPoints].y = y;
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	411 float dx = (dollarPath[j].p[dollarPath[j].numPoints ].x-
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	412 dollarPath[j].p[dollarPath[j].numPoints-1].x);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	413 float dy = (dollarPath[j].p[dollarPath[j].numPoints ].y-
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	414 dollarPath[j].p[dollarPath[j].numPoints-1].y);
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	415 dollarPath[j].length += sqrt(dxdx + dydy);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	416
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	417 dollarPath[j].numPoints++;
4653 744b75ad18b8 Started adding vectorization of touch data. Jim Grandpre <jim.tla@gmail.com> parents: 4651 diff changeset	418
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	419 centroid.x = centroid.x + dx/numDownFingers;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	420 centroid.y = centroid.y + dy/numDownFingers;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	421 if(numDownFingers > 1) {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	422 Point lv; //Vector from centroid to last x,y position
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	423 Point v; //Vector from centroid to current x,y position
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	424 lv.x = gestureLast[j].cv.x;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	425 lv.y = gestureLast[j].cv.y;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	426 float lDist = sqrt(lv.xlv.x + lv.ylv.y);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	427
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	428 v.x = x - centroid.x;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	429 v.y = y - centroid.y;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	430 gestureLast[j].cv = v;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	431 float Dist = sqrt(v.xv.x+v.yv.y);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	432 // cos(dTheta) = (v . lv)/(\|v\| * \|lv\|)
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	433
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	434 lv.x/=lDist;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	435 lv.y/=lDist;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	436 v.x/=Dist;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	437 v.y/=Dist;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	438 float dtheta = atan2(lv.xv.y - lv.yv.x,lv.xv.x + lv.yv.y);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	439
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	440 float dDist = (lDist - Dist);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	441
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	442 gestureLast[j].dDist = dDist;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	443 gestureLast[j].dtheta = dtheta;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	444
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	445 //gdtheta = gdtheta.9 + dtheta.1;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	446 //gdDist = gdDist.9 + dDist.1
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	447 gdtheta += dtheta;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	448 gdDist += dDist;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	449
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	450 //printf("thetaSum = %f, distSum = %f\n",gdtheta,gdDist);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	451 //printf("id: %i dTheta = %f, dDist = %f\n",j,dtheta,dDist);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	452 }
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	453 else {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	454 gestureLast[j].dDist = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	455 gestureLast[j].dtheta = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	456 gestureLast[j].cv.x = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	457 gestureLast[j].cv.y = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	458 }
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	459 gestureLast[j].f.p.x = x;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	460 gestureLast[j].f.p.y = y;
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	461 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	462 //pressure?
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	463 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	464 }
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	465 else if(gestureLast[j].f.id == -1 && empty == -1) {
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	466 empty = j;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	467 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	468 }
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	469
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	470 if(j >= MAXFINGERS && empty >= 0) {
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	471 // printf("Finger Down!!!\n");
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	472 numDownFingers++;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	473 centroid.x = (centroid.x*(numDownFingers - 1) + x)/numDownFingers;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	474 centroid.y = (centroid.y*(numDownFingers - 1) + y)/numDownFingers;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	475
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	476 j = empty;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	477 gestureLast[j].f.id = event.tfinger.fingerId;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	478 gestureLast[j].f.p.x = x;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	479 gestureLast[j].f.p.y = y;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	480
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	481
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	482 dollarPath[j].length = 0;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	483 dollarPath[j].p[0].x = x;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	484 dollarPath[j].p[0].y = y;
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	485 dollarPath[j].numPoints = 1;
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	486 }
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	487
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	488 //draw the touch:
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	489
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	490 if(gestureLast[j].f.id < 0) continue; //Finger up. Or some error...
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	491
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	492 unsigned int c = colors[gestureLast[j].f.id%7];
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	493 unsigned int col =
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	494 ((unsigned int)(c*(.1+.85))) \|
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	495 ((unsigned int)((0xFF*(1-((float)age)/EVENT_BUF_SIZE))) & 0xFF)<<24;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	496 x = gestureLast[j].f.p.x;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	497 y = gestureLast[j].f.p.y;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	498 if(event.type == SDL_FINGERMOTION)
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	499 drawCircle(screen,xscreen->w,yscreen->h,5,col);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	500 else if(event.type == SDL_FINGERDOWN)
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	501 drawCircle(screen,xscreen->w,yscreen->h,-10,col);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	502
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	503 //if there is a centroid, draw it
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	504 if(numDownFingers > 1) {
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	505 unsigned int col =
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	506 ((unsigned int)(0xFFFFFF)) \|
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	507 ((unsigned int)((0xFF*(1-((float)age)/EVENT_BUF_SIZE))) & 0xFF)<<24;
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	508 drawCircle(screen,centroid.xscreen->w,centroid.yscreen->h,5,col);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	509 }
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	510 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	511 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	512
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	513
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	514 for(i=0;i<MAXFINGERS;i++)
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	515 if(finger[i].p.x >= 0 && finger[i].p.y >= 0)
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	516 if(finger[i].pressure > 0)
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	517 drawCircle(screen,finger[i].p.xscreen->w,finger[i].p.yscreen->h
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	518 ,20,0xFF*finger[i].pressure);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	519 else
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	520 drawCircle(screen,finger[i].p.xscreen->w,finger[i].p.yscreen->h
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	521 ,20,0xFF);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	522
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	523
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	524
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	525 keystat[32] = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	526
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	527 if(knob.p.x > 0)
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	528 drawKnob(screen,knob);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	529
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	530 if(SDL_MUSTLOCK(screen)) SDL_UnlockSurface(screen);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	531
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	532 SDL_Flip(screen);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	533 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	534
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	535 SDL_Surface* initScreen(int width,int height)
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	536 {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	537 return SDL_SetVideoMode(width, height, DEPTH,
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	538 SDL_HWSURFACE \| SDL_RESIZABLE);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	539 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	540
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	541 int main(int argc, char* argv[])
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	542 {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	543 SDL_Surface *screen;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	544 SDL_Event event;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	545
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	546 int keypress = 0;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	547 int h=0,s=1,i,j;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	548
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	549 //gesture variables
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	550 int numDownFingers = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	551 float gdtheta = 0,gdDist = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	552 Point centroid;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	553 knob.r = .1;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	554 knob.ang = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	555 TouchPoint gestureLast[MAXFINGERS];
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	556 for(i = 0;i < MAXFINGERS;i++)
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	557 gestureLast[i].f.id = -1;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	558
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	559
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	560 memset(keystat,0,512*sizeof(keystat[0]));
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	561 if (SDL_Init(SDL_INIT_VIDEO) < 0 ) return 1;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	562
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	563 if (!(screen = initScreen(WIDTH,HEIGHT)))
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	564 {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	565 SDL_Quit();
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	566 return 1;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	567 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	568
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	569 while(!keystat[27]) {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	570 //Poll SDL
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	571 while(SDL_PollEvent(&event))
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	572 {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	573 //Record _all_ events
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	574 events[eventWrite & (EVENT_BUF_SIZE-1)] = event;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	575 eventWrite++;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	576
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	577 switch (event.type)
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	578 {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	579 case SDL_QUIT:
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	580 keystat[27] = 1;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	581 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	582 case SDL_KEYDOWN:
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	583 //printf("%i\n",event.key.keysym.sym);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	584 keystat[event.key.keysym.sym] = 1;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	585 //keypress = 1;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	586 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	587 case SDL_KEYUP:
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	588 //printf("%i\n",event.key.keysym.sym);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	589 keystat[event.key.keysym.sym] = 0;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	590 //keypress = 1;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	591 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	592 case SDL_VIDEORESIZE:
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	593 if (!(screen = initScreen(event.resize.w,
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	594 event.resize.h)))
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	595 {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	596 SDL_Quit();
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	597 return 1;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	598 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	599 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	600 case SDL_MOUSEMOTION:
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	601 mousx = event.motion.x;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	602 mousy = event.motion.y;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	603 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	604 case SDL_MOUSEBUTTONDOWN:
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	605 bstatus \|= (1<<(event.button.button-1));
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	606 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	607 case SDL_MOUSEBUTTONUP:
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	608 bstatus &= ~(1<<(event.button.button-1));
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	609 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	610 case SDL_FINGERMOTION:
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	611 ;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	612 //printf("Finger: %i,x: %i, y: %i\n",event.tfinger.fingerId,
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	613 // event.tfinger.x,event.tfinger.y);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	614 SDL_Touch* inTouch = SDL_GetTouch(event.tfinger.touchId);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	615 SDL_Finger* inFinger = SDL_GetFinger(inTouch,event.tfinger.fingerId);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	616
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	617 for(i = 0;i<MAXFINGERS;i++)
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	618 if(index2fingerid[i] == event.tfinger.fingerId)
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	619 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	620 if(i == MAXFINGERS) break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	621 if(inTouch > 0) {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	622 finger[i].p.x = ((float)event.tfinger.x)/
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	623 inTouch->xres;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	624 finger[i].p.y = ((float)event.tfinger.y)/
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	625 inTouch->yres;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	626
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	627 finger[i].pressure =
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	628 ((float)event.tfinger.pressure)/inTouch->pressureres;
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	629 /*
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	630 printf("Finger: %i, Pressure: %f Pressureres: %i\n",
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	631 event.tfinger.fingerId,
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	632 finger[i].pressure,
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	633 inTouch->pressureres);
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	634 */
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	635 //printf("Finger: %i, pressure: %f\n",event.tfinger.fingerId,
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	636 // finger[event.tfinger.fingerId].pressure);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	637 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	638
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	639 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	640 case SDL_FINGERDOWN:
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	641 printf("Finger: %i down - x: %i, y: %i\n",event.tfinger.fingerId,
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	642 event.tfinger.x,event.tfinger.y);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	643
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	644 for(i = 0;i<MAXFINGERS;i++)
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	645 if(index2fingerid[i] == -1) {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	646 index2fingerid[i] = event.tfinger.fingerId;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	647 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	648 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	649 finger[i].p.x = event.tfinger.x;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	650 finger[i].p.y = event.tfinger.y;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	651 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	652 case SDL_FINGERUP:
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	653 printf("Figner: %i up - x: %i, y: %i\n",event.tfinger.fingerId,
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	654 event.tfinger.x,event.tfinger.y);
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	655 for(i = 0;i<MAXFINGERS;i++)
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	656 if(index2fingerid[i] == event.tfinger.fingerId) {
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	657 index2fingerid[i] = -1;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	658 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	659 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	660 finger[i].p.x = -1;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	661 finger[i].p.y = -1;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	662 break;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	663 }
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	664
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	665
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	666 if(event.type == SDL_FINGERMOTION \|\|
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	667 event.type == SDL_FINGERDOWN \|\|
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	668 event.type == SDL_FINGERUP) {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	669 SDL_Touch* inTouch = SDL_GetTouch(event.tfinger.touchId);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	670 //SDL_Finger* inFinger = SDL_GetFinger(inTouch,event.tfinger.fingerId);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	671
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	672 float x = ((float)event.tfinger.x)/inTouch->xres;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	673 float y = ((float)event.tfinger.y)/inTouch->yres;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	674 int j,empty = -1;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	675
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	676 for(j = 0;j<MAXFINGERS;j++) {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	677 if(gestureLast[j].f.id == event.tfinger.fingerId) {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	678 if(event.type == SDL_FINGERUP) {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	679 numDownFingers--;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	680 if(numDownFingers <= 1) {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	681 gdtheta = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	682 gdDist = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	683 }
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	684 gestureLast[j].f.id = -1;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	685 break;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	686 }
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	687 else {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	688 float dx = x - gestureLast[j].f.p.x;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	689 float dy = y - gestureLast[j].f.p.y;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	690 centroid.x = centroid.x + dx/numDownFingers;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	691 centroid.y = centroid.y + dy/numDownFingers;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	692 if(numDownFingers > 1) {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	693 Point lv; //Vector from centroid to last x,y position
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	694 Point v; //Vector from centroid to current x,y position
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	695 lv = gestureLast[j].cv;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	696 float lDist = sqrt(lv.xlv.x + lv.ylv.y);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	697 printf("lDist = %f\n",lDist);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	698 v.x = x - centroid.x;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	699 v.y = y - centroid.y;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	700 gestureLast[j].cv = v;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	701 float Dist = sqrt(v.xv.x+v.yv.y);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	702 // cos(dTheta) = (v . lv)/(\|v\| * \|lv\|)
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	703
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	704 lv.x/=lDist;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	705 lv.y/=lDist;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	706 v.x/=Dist;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	707 v.y/=Dist;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	708 float dtheta = atan2(lv.xv.y - lv.yv.x,lv.xv.x + lv.yv.y);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	709
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	710 float dDist = (Dist - lDist);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	711 if(lDist == 0) {dDist = 0;dtheta = 0;}
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	712 gestureLast[j].dDist = dDist;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	713 gestureLast[j].dtheta = dtheta;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	714
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	715 printf("dDist = %f, dTheta = %f\n",dDist,dtheta);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	716 //gdtheta = gdtheta.9 + dtheta.1;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	717 //gdDist = gdDist.9 + dDist.1
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	718 knob.r += dDist/numDownFingers;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	719 knob.ang += dtheta;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	720 //printf("thetaSum = %f, distSum = %f\n",gdtheta,gdDist);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	721 //printf("id: %i dTheta = %f, dDist = %f\n",j,dtheta,dDist);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	722 }
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	723 else {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	724 gestureLast[j].dDist = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	725 gestureLast[j].dtheta = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	726 gestureLast[j].cv.x = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	727 gestureLast[j].cv.y = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	728 }
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	729 gestureLast[j].f.p.x = x;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	730 gestureLast[j].f.p.y = y;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	731 break;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	732 //pressure?
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	733 }
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	734 }
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	735 else if(gestureLast[j].f.id == -1 && empty == -1) {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	736 empty = j;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	737 }
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	738 }
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	739
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	740 if(j >= MAXFINGERS && empty >= 0) {
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	741 printf("Finger Down!!!\n");
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	742 numDownFingers++;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	743 centroid.x = (centroid.x*(numDownFingers - 1) + x)/numDownFingers;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	744 centroid.y = (centroid.y*(numDownFingers - 1) + y)/numDownFingers;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	745
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	746 j = empty;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	747 gestureLast[j].f.id = event.tfinger.fingerId;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	748 gestureLast[j].f.p.x = x;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	749 gestureLast[j].f.p.y = y;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	750 gestureLast[j].cv.x = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	751 gestureLast[j].cv.y = 0;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	752 }
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	753
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	754 //draw the touch:
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	755 }
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	756 //And draw
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	757 if(numDownFingers > 1)
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	758 knob.p = centroid;
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	759 else
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	760 knob.p.x = -1;
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	761 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	762 DrawScreen(screen,h);
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	763 //printf("c: (%f,%f)\n",centroid.x,centroid.y);
b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	764 //printf("numDownFingers: %i\n",numDownFingers);
4654 7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	765 //for(i=0;i<512;i++)
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	766 // if(keystat[i]) printf("%i\n",i);
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	767
7dbcd71216df Added $1 gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: 4653 diff changeset	768
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	769 }
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	770 SDL_Quit();
4656 b5007b7995c6 Added multi-finger gestures Jim Grandpre <jim.tla@gmail.com> parents: 4655 diff changeset	771
4651 86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	772 return 0;
86c171888eee Added gesture test c file. Beginning of gesture recognition. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	773 }

Mercurial > sdl-ios-xcode

annotate touchTest/gestureTest.c @ 4665:c2493813a2f4