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

annotate touchTest/gestureSDLTest.c @ 4657:eed063a0bf5b

Moved Multi finger gesture recognition into the library.

author	Jim Grandpre <jim.tla@gmail.com>
date	Wed, 07 Jul 2010 04:13:08 -0700
parents
children	063b9455bd1a

rev	line source
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	1 #include <stdio.h>
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	2 #include <SDL.h>
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	3 #include <math.h>
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	4 #include <SDL_touch.h>
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	5
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	6 #define PI 3.1415926535897
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	7 #define PHI ((sqrt(5)-1)/2)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	8 #define WIDTH 640
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	9 #define HEIGHT 480
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	10 #define BPP 4
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	11 #define DEPTH 32
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	12
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	13 #define MAXFINGERS 3
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	14
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	15 #define DOLLARNPOINTS 64
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	16 #define DOLLARSIZE 256
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	17
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	18 //MUST BE A POWER OF 2!
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	19 #define EVENT_BUF_SIZE 256
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	20
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	21 SDL_Event events[EVENT_BUF_SIZE];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	22 int eventWrite;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	23
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	24 int mousx,mousy;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	25 int keystat[512];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	26 int bstatus;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	27
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	28 int colors[7] = {0xFF,0xFF00,0xFF0000,0xFFFF00,0x00FFFF,0xFF00FF,0xFFFFFF};
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	29
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	30 int index2fingerid[MAXFINGERS];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	31 int fingersDown;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	32
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	33 typedef struct {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	34 float x,y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	35 } Point;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	36
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	37 typedef struct {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	38 Point p;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	39 float pressure;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	40 int id;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	41 } Finger;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	42
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	43 typedef struct {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	44 Finger f;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	45 Point cv;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	46 float dtheta,dDist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	47 } TouchPoint;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	48
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	49
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	50 typedef struct { //dt + s
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	51 Point d,s; //direction, start
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	52 int points;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	53 } Line;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	54
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	55
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	56 typedef struct {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	57 float length;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	58
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	59 int numPoints;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	60 Point p[EVENT_BUF_SIZE]; //To be safe
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	61 } DollarPath;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	62
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	63 typedef struct {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	64 float ang,r;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	65 Point p;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	66 } Knob;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	67
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	68 Knob knob;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	69
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	70 Finger finger[MAXFINGERS];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	71
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	72
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	73 DollarPath dollarPath[MAXFINGERS];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	74
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	75 #define MAXTEMPLATES 4
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	76
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	77 Point dollarTemplate[MAXTEMPLATES][DOLLARNPOINTS];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	78 int numDollarTemplates = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	79 #ifdef DRAW_VECTOR_EST
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	80 Line gestureLine[MAXFINGERS];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	81 #endif
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	82
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	83 void handler (int sig)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	84 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	85 printf ("\exiting...(%d)\n", sig);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	86 exit (0);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	87 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	88
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	89 void perror_exit (char *error)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	90 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	91 perror (error);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	92 handler (9);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	93 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	94
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	95
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	96 void setpix(SDL_Surface *screen, int x, int y, unsigned int col)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	97 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	98 Uint32 *pixmem32;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	99 Uint32 colour;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	100
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	101 if((unsigned)x > screen->w) return;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	102 if((unsigned)y > screen->h) return;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	103
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	104 pixmem32 = (Uint32) screen->pixels + yscreen->pitch/BPP + x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	105
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	106 Uint8 r,g,b;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	107 float a;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	108
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	109 memcpy(&colour,pixmem32,screen->format->BytesPerPixel);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	110
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	111 SDL_GetRGB(colour,screen->format,&r,&g,&b); //Always returns 0xFFFFFF?
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	112 //r = 0;g = 0; b = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	113 a = (col>>24)&0xFF;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	114 if(a == 0) a = 0xFF; //Hack, to make things easier.
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	115 a /= 0xFF;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	116 r = r(1-a) + ((col>>16)&0xFF)(a);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	117 g = g(1-a) + ((col>> 8)&0xFF)(a);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	118 b = b(1-a) + ((col>> 0)&0xFF)(a);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	119 colour = SDL_MapRGB( screen->format,r, g, b);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	120
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	121
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	122 *pixmem32 = colour;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	123 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	124
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	125 void drawLine(SDL_Surface *screen,int x0,int y0,int x1,int y1,unsigned int col) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	126 float t;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	127 for(t=0;t<1;t+=1.f/SDL_max(abs(x0-x1),abs(y0-y1)))
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	128 setpix(screen,x1+t(x0-x1),y1+t(y0-y1),col);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	129 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	130 void drawCircle(SDL_Surface* screen,int x,int y,int r,unsigned int c)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	131 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	132
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	133 float a;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	134 int tx;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	135
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	136 int ty;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	137 float xr;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	138 for(ty = -abs(r);ty <= abs(r);ty++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	139 xr = sqrt(rr - tyty);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	140 if(r > 0) { //r > 0 ==> filled circle
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	141 for(tx=-xr+.5;tx<=xr-.5;tx++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	142 setpix(screen,x+tx,y+ty,c);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	143 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	144 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	145 else {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	146 setpix(screen,x-xr+.5,y+ty,c);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	147 setpix(screen,x+xr-.5,y+ty,c);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	148 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	149 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	150 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	151
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	152 void drawKnob(SDL_Surface* screen,Knob k) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	153 //printf("Knob: x = %f, y = %f, r = %f, a = %f\n",k.p.x,k.p.y,k.r,k.ang);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	154
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	155 drawCircle(screen,k.p.xscreen->w,k.p.yscreen->h,k.r*screen->w,0xFFFFFF);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	156
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	157 drawCircle(screen,(k.p.x+k.r/2cos(k.ang))screen->w,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	158 (k.p.y+k.r/2sin(k.ang))screen->h,k.r/4*screen->w,0);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	159
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	160 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	161
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	162 void drawDollarPath(SDL_Surface* screen,Point* points,int numPoints,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	163 int rad,unsigned int col){
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	164 int i;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	165 for(i=0;i<numPoints;i++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	166 drawCircle(screen,points[i].x+screen->w/2,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	167 points[i].y+screen->h/2,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	168 rad,col);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	169 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	170 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	171
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	172 float dollarDifference(Point* points,Point* templ,float ang) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	173 // Point p[DOLLARNPOINTS];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	174 float dist = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	175 Point p;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	176 int i;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	177 for(i = 0; i < DOLLARNPOINTS; i++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	178 p.x = points[i].x * cos(ang) - points[i].y * sin(ang);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	179 p.y = points[i].x * sin(ang) + points[i].y * cos(ang);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	180 dist += sqrt((p.x-templ[i].x)*(p.x-templ[i].x)+
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	181 (p.y-templ[i].y)*(p.y-templ[i].y));
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	182 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	183 return dist/DOLLARNPOINTS;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	184
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	185 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	186
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	187 float bestDollarDifference(Point* points,Point* templ) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	188 //------------BEGIN DOLLAR BLACKBOX----------------//
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	189 //-TRANSLATED DIRECTLY FROM PSUDEO-CODE AVAILABLE AT-//
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	190 //-"http://depts.washington.edu/aimgroup/proj/dollar/"-//
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	191 float ta = -PI/4;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	192 float tb = PI/4;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	193 float dt = PI/90;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	194 float x1 = PHIta + (1-PHI)tb;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	195 float f1 = dollarDifference(points,templ,x1);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	196 float x2 = (1-PHI)ta + PHItb;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	197 float f2 = dollarDifference(points,templ,x2);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	198 while(abs(ta-tb) > dt) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	199 if(f1 < f2) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	200 tb = x2;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	201 x2 = x1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	202 f2 = f1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	203 x1 = PHIta + (1-PHI)tb;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	204 f1 = dollarDifference(points,templ,x1);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	205 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	206 else {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	207 ta = x1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	208 x1 = x2;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	209 f1 = f2;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	210 x2 = (1-PHI)ta + PHItb;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	211 f2 = dollarDifference(points,templ,x2);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	212 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	213 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	214 /*
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	215 if(f1 <= f2)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	216 printf("Min angle (x1): %f\n",x1);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	217 else if(f1 > f2)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	218 printf("Min angle (x2): %f\n",x2);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	219 */
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	220 return SDL_min(f1,f2);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	221 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	222
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	223 float dollarRecognize(SDL_Surface* screen, DollarPath path,int *bestTempl) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	224
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	225 Point points[DOLLARNPOINTS];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	226 int numPoints = dollarNormalize(path,points);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	227 int i;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	228
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	229 int k;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	230 /*
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	231 for(k = 0;k<DOLLARNPOINTS;k++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	232 printf("(%f,%f)\n",points[k].x,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	233 points[k].y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	234 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	235 */
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	236 drawDollarPath(screen,points,numPoints,-15,0xFF6600);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	237
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	238 int bestDiff = 10000;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	239 *bestTempl = -1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	240 for(i = 0;i < numDollarTemplates;i++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	241 int diff = bestDollarDifference(points,dollarTemplate[i]);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	242 if(diff < bestDiff) {bestDiff = diff; *bestTempl = i;}
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	243 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	244 return bestDiff;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	245 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	246
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	247 //DollarPath contains raw points, plus (possibly) the calculated length
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	248 int dollarNormalize(DollarPath path,Point *points) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	249 int i;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	250 //Calculate length if it hasn't already been done
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	251 if(path.length <= 0) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	252 for(i=1;i<path.numPoints;i++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	253 float dx = path.p[i ].x -
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	254 path.p[i-1].x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	255 float dy = path.p[i ].y -
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	256 path.p[i-1].y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	257 path.length += sqrt(dxdx+dydy);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	258 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	259 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	260
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	261
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	262 //Resample
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	263 float interval = path.length/(DOLLARNPOINTS - 1);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	264 float dist = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	265
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	266 int numPoints = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	267 Point centroid; centroid.x = 0;centroid.y = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	268 //printf("(%f,%f)\n",path.p[path.numPoints-1].x,path.p[path.numPoints-1].y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	269 for(i = 1;i < path.numPoints;i++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	270 float d = sqrt((path.p[i-1].x-path.p[i].x)*(path.p[i-1].x-path.p[i].x)+
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	271 (path.p[i-1].y-path.p[i].y)*(path.p[i-1].y-path.p[i].y));
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	272 //printf("d = %f dist = %f/%f\n",d,dist,interval);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	273 while(dist + d > interval) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	274 points[numPoints].x = path.p[i-1].x +
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	275 ((interval-dist)/d)*(path.p[i].x-path.p[i-1].x);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	276 points[numPoints].y = path.p[i-1].y +
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	277 ((interval-dist)/d)*(path.p[i].y-path.p[i-1].y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	278 centroid.x += points[numPoints].x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	279 centroid.y += points[numPoints].y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	280 numPoints++;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	281
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	282 dist -= interval;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	283 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	284 dist += d;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	285 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	286 if(numPoints < 1) return 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	287 centroid.x /= numPoints;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	288 centroid.y /= numPoints;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	289
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	290 //printf("Centroid (%f,%f)",centroid.x,centroid.y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	291 //Rotate Points so point 0 is left of centroid and solve for the bounding box
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	292 float xmin,xmax,ymin,ymax;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	293 xmin = centroid.x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	294 xmax = centroid.x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	295 ymin = centroid.y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	296 ymax = centroid.y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	297
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	298 float ang = atan2(centroid.y - points[0].y,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	299 centroid.x - points[0].x);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	300
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	301 for(i = 0;i<numPoints;i++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	302 float px = points[i].x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	303 float py = points[i].y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	304 points[i].x = (px - centroid.x)*cos(ang) -
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	305 (py - centroid.y)*sin(ang) + centroid.x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	306 points[i].y = (px - centroid.x)*sin(ang) +
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	307 (py - centroid.y)*cos(ang) + centroid.y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	308
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	309
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	310 if(points[i].x < xmin) xmin = points[i].x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	311 if(points[i].x > xmax) xmax = points[i].x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	312 if(points[i].y < ymin) ymin = points[i].y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	313 if(points[i].y > ymax) ymax = points[i].y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	314 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	315
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	316 //Scale points to DOLLARSIZE, and translate to the origin
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	317 float w = xmax-xmin;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	318 float h = ymax-ymin;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	319
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	320 for(i=0;i<numPoints;i++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	321 points[i].x = (points[i].x - centroid.x)*DOLLARSIZE/w;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	322 points[i].y = (points[i].y - centroid.y)*DOLLARSIZE/h;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	323 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	324 return numPoints;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	325 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	326
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	327 void DrawScreen(SDL_Surface* screen, int h)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	328 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	329 int x, y, xm,ym,c;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	330 if(SDL_MUSTLOCK(screen))
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	331 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	332 if(SDL_LockSurface(screen) < 0) return;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	333 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	334 for(y = 0; y < screen->h; y++ )
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	335 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	336 for( x = 0; x < screen->w; x++ )
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	337 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	338 //setpixel(screen, x, y, (xx)/256+3y+h, (y*y)/256+x+h, h);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	339 //xm = (x+h)%screen->w;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	340 //ym = (y+h)%screen->w;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	341 //c = sin(h/2562PI)xy/screen->w/screen->h;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	342 //setpix(screen,x,y,255sin(xm/screen->w2PI),sin(h/2552PI)255*y/screen->h,c);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	343 setpix(screen,x,y,((x%255)<<16) + ((y%255)<<8) + (x+y)%255);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	344 //setpix(screen,x,y,0); //Inefficient, but that's okay...
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	345 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	346 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	347 drawCircle(screen,mousx,mousy,-30,0xFFFFFF);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	348 drawLine(screen,0,0,screen->w,screen->h,0xFFFFFF);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	349
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	350 int i;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	351 //draw Touch History
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	352 TouchPoint gestureLast[MAXFINGERS];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	353 //printf("------------------Start History------------------\n");
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	354 for(i = 0;i < MAXFINGERS;i++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	355 gestureLast[i].f.id = -1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	356 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	357 int numDownFingers = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	358 Point centroid;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	359 float gdtheta,gdDist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	360
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	361
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	362 for(i = SDL_max(0,eventWrite - EVENT_BUF_SIZE);i < eventWrite;i++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	363 SDL_Event event = events[i&(EVENT_BUF_SIZE-1)];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	364 int age = eventWrite - i - 1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	365 if(event.type == SDL_FINGERMOTION \|\|
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	366 event.type == SDL_FINGERDOWN \|\|
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	367 event.type == SDL_FINGERUP) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	368 SDL_Touch* inTouch = SDL_GetTouch(event.tfinger.touchId);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	369 //SDL_Finger* inFinger = SDL_GetFinger(inTouch,event.tfinger.fingerId);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	370
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	371 float x = ((float)event.tfinger.x)/inTouch->xres;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	372 float y = ((float)event.tfinger.y)/inTouch->yres;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	373 int j,empty = -1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	374
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	375 for(j = 0;j<MAXFINGERS;j++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	376 if(gestureLast[j].f.id == event.tfinger.fingerId) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	377 if(event.type == SDL_FINGERUP) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	378 numDownFingers--;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	379 if(numDownFingers <= 1) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	380 gdtheta = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	381 gdDist = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	382 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	383 if(!keystat[32]){ //spacebar
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	384 int bestTempl;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	385 float error = dollarRecognize(screen,dollarPath[j],&bestTempl);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	386 if(bestTempl >= 0){
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	387 drawDollarPath(screen,dollarTemplate[bestTempl]
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	388 ,DOLLARNPOINTS,-15,0x0066FF);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	389 printf("Dollar error: %f\n",error);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	390 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	391
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	392 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	393 else if(numDollarTemplates < MAXTEMPLATES) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	394
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	395 dollarNormalize(dollarPath[j],
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	396 dollarTemplate[numDollarTemplates]);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	397 /*
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	398 int k;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	399 for(k = 0;k<DOLLARNPOINTS;k++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	400 printf("(%f,%f)\n",dollarTemplate[numDollarTemplates][i].x,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	401 dollarTemplate[numDollarTemplates][i].y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	402 }*/
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	403 numDollarTemplates++;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	404 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	405
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	406 gestureLast[j].f.id = -1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	407 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	408 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	409 else {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	410 dollarPath[j].p[dollarPath[j].numPoints].x = x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	411 dollarPath[j].p[dollarPath[j].numPoints].y = y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	412 float dx = (dollarPath[j].p[dollarPath[j].numPoints ].x-
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	413 dollarPath[j].p[dollarPath[j].numPoints-1].x);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	414 float dy = (dollarPath[j].p[dollarPath[j].numPoints ].y-
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	415 dollarPath[j].p[dollarPath[j].numPoints-1].y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	416 dollarPath[j].length += sqrt(dxdx + dydy);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	417
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	418 dollarPath[j].numPoints++;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	419
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	420 centroid.x = centroid.x + dx/numDownFingers;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	421 centroid.y = centroid.y + dy/numDownFingers;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	422 if(numDownFingers > 1) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	423 Point lv; //Vector from centroid to last x,y position
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	424 Point v; //Vector from centroid to current x,y position
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	425 lv.x = gestureLast[j].cv.x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	426 lv.y = gestureLast[j].cv.y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	427 float lDist = sqrt(lv.xlv.x + lv.ylv.y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	428
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	429 v.x = x - centroid.x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	430 v.y = y - centroid.y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	431 gestureLast[j].cv = v;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	432 float Dist = sqrt(v.xv.x+v.yv.y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	433 // cos(dTheta) = (v . lv)/(\|v\| * \|lv\|)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	434
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	435 lv.x/=lDist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	436 lv.y/=lDist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	437 v.x/=Dist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	438 v.y/=Dist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	439 float dtheta = atan2(lv.xv.y - lv.yv.x,lv.xv.x + lv.yv.y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	440
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	441 float dDist = (lDist - Dist);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	442
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	443 gestureLast[j].dDist = dDist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	444 gestureLast[j].dtheta = dtheta;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	445
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	446 //gdtheta = gdtheta.9 + dtheta.1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	447 //gdDist = gdDist.9 + dDist.1
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	448 gdtheta += dtheta;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	449 gdDist += dDist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	450
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	451 //printf("thetaSum = %f, distSum = %f\n",gdtheta,gdDist);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	452 //printf("id: %i dTheta = %f, dDist = %f\n",j,dtheta,dDist);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	453 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	454 else {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	455 gestureLast[j].dDist = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	456 gestureLast[j].dtheta = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	457 gestureLast[j].cv.x = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	458 gestureLast[j].cv.y = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	459 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	460 gestureLast[j].f.p.x = x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	461 gestureLast[j].f.p.y = y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	462 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	463 //pressure?
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	464 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	465 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	466 else if(gestureLast[j].f.id == -1 && empty == -1) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	467 empty = j;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	468 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	469 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	470
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	471 if(j >= MAXFINGERS && empty >= 0) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	472 // printf("Finger Down!!!\n");
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	473 numDownFingers++;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	474 centroid.x = (centroid.x*(numDownFingers - 1) + x)/numDownFingers;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	475 centroid.y = (centroid.y*(numDownFingers - 1) + y)/numDownFingers;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	476
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	477 j = empty;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	478 gestureLast[j].f.id = event.tfinger.fingerId;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	479 gestureLast[j].f.p.x = x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	480 gestureLast[j].f.p.y = y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	481
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	482
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	483 dollarPath[j].length = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	484 dollarPath[j].p[0].x = x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	485 dollarPath[j].p[0].y = y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	486 dollarPath[j].numPoints = 1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	487 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	488
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	489 //draw the touch:
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	490
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	491 if(gestureLast[j].f.id < 0) continue; //Finger up. Or some error...
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	492
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	493 unsigned int c = colors[gestureLast[j].f.id%7];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	494 unsigned int col =
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	495 ((unsigned int)(c*(.1+.85))) \|
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	496 ((unsigned int)((0xFF*(1-((float)age)/EVENT_BUF_SIZE))) & 0xFF)<<24;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	497 x = gestureLast[j].f.p.x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	498 y = gestureLast[j].f.p.y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	499 if(event.type == SDL_FINGERMOTION)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	500 drawCircle(screen,xscreen->w,yscreen->h,5,col);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	501 else if(event.type == SDL_FINGERDOWN)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	502 drawCircle(screen,xscreen->w,yscreen->h,-10,col);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	503
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	504 //if there is a centroid, draw it
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	505 if(numDownFingers > 1) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	506 unsigned int col =
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	507 ((unsigned int)(0xFFFFFF)) \|
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	508 ((unsigned int)((0xFF*(1-((float)age)/EVENT_BUF_SIZE))) & 0xFF)<<24;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	509 drawCircle(screen,centroid.xscreen->w,centroid.yscreen->h,5,col);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	510 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	511 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	512 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	513
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	514
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	515 for(i=0;i<MAXFINGERS;i++)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	516 if(finger[i].p.x >= 0 && finger[i].p.y >= 0)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	517 if(finger[i].pressure > 0)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	518 drawCircle(screen,finger[i].p.xscreen->w,finger[i].p.yscreen->h
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	519 ,20,0xFF*finger[i].pressure);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	520 else
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	521 drawCircle(screen,finger[i].p.xscreen->w,finger[i].p.yscreen->h
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	522 ,20,0xFF);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	523
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	524
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	525
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	526 keystat[32] = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	527
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	528 if(knob.p.x > 0)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	529 drawKnob(screen,knob);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	530
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	531 if(SDL_MUSTLOCK(screen)) SDL_UnlockSurface(screen);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	532
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	533 SDL_Flip(screen);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	534 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	535
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	536 SDL_Surface* initScreen(int width,int height)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	537 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	538 return SDL_SetVideoMode(width, height, DEPTH,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	539 SDL_HWSURFACE \| SDL_RESIZABLE);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	540 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	541
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	542 int main(int argc, char* argv[])
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	543 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	544 SDL_Surface *screen;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	545 SDL_Event event;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	546
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	547 int keypress = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	548 int h=0,s=1,i,j;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	549
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	550 //gesture variables
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	551 int numDownFingers = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	552 float gdtheta = 0,gdDist = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	553 Point centroid;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	554 knob.r = .1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	555 knob.ang = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	556 TouchPoint gestureLast[MAXFINGERS];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	557
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	558
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	559
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	560 memset(keystat,0,512*sizeof(keystat[0]));
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	561 if (SDL_Init(SDL_INIT_VIDEO) < 0 ) return 1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	562
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	563 if (!(screen = initScreen(WIDTH,HEIGHT)))
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	564 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	565 SDL_Quit();
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	566 return 1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	567 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	568
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	569 while(!keystat[27]) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	570 //Poll SDL
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	571 while(SDL_PollEvent(&event))
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	572 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	573 //Record _all_ events
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	574 events[eventWrite & (EVENT_BUF_SIZE-1)] = event;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	575 eventWrite++;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	576
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	577 switch (event.type)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	578 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	579 case SDL_QUIT:
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	580 keystat[27] = 1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	581 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	582 case SDL_KEYDOWN:
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	583 //printf("%i\n",event.key.keysym.sym);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	584 keystat[event.key.keysym.sym] = 1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	585 //keypress = 1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	586 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	587 case SDL_KEYUP:
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	588 //printf("%i\n",event.key.keysym.sym);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	589 keystat[event.key.keysym.sym] = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	590 //keypress = 1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	591 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	592 case SDL_VIDEORESIZE:
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	593 if (!(screen = initScreen(event.resize.w,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	594 event.resize.h)))
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	595 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	596 SDL_Quit();
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	597 return 1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	598 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	599 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	600 case SDL_MOUSEMOTION:
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	601 mousx = event.motion.x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	602 mousy = event.motion.y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	603 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	604 case SDL_MOUSEBUTTONDOWN:
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	605 bstatus \|= (1<<(event.button.button-1));
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	606 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	607 case SDL_MOUSEBUTTONUP:
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	608 bstatus &= ~(1<<(event.button.button-1));
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	609 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	610 case SDL_FINGERMOTION:
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	611 ;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	612 //printf("Finger: %i,x: %i, y: %i\n",event.tfinger.fingerId,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	613 // event.tfinger.x,event.tfinger.y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	614 SDL_Touch* inTouch = SDL_GetTouch(event.tfinger.touchId);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	615 SDL_Finger* inFinger = SDL_GetFinger(inTouch,event.tfinger.fingerId);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	616
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	617 for(i = 0;i<MAXFINGERS;i++)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	618 if(index2fingerid[i] == event.tfinger.fingerId)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	619 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	620 if(i == MAXFINGERS) break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	621 if(inTouch > 0) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	622 finger[i].p.x = ((float)event.tfinger.x)/
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	623 inTouch->xres;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	624 finger[i].p.y = ((float)event.tfinger.y)/
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	625 inTouch->yres;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	626
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	627 finger[i].pressure =
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	628 ((float)event.tfinger.pressure)/inTouch->pressureres;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	629 /*
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	630 printf("Finger: %i, Pressure: %f Pressureres: %i\n",
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	631 event.tfinger.fingerId,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	632 finger[i].pressure,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	633 inTouch->pressureres);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	634 */
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	635 //printf("Finger: %i, pressure: %f\n",event.tfinger.fingerId,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	636 // finger[event.tfinger.fingerId].pressure);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	637 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	638
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	639 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	640 case SDL_FINGERDOWN:
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	641 printf("Finger: %i down - x: %i, y: %i\n",event.tfinger.fingerId,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	642 event.tfinger.x,event.tfinger.y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	643
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	644 for(i = 0;i<MAXFINGERS;i++)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	645 if(index2fingerid[i] == -1) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	646 index2fingerid[i] = event.tfinger.fingerId;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	647 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	648 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	649 finger[i].p.x = event.tfinger.x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	650 finger[i].p.y = event.tfinger.y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	651 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	652 case SDL_FINGERUP:
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	653 printf("Figner: %i up - x: %i, y: %i\n",event.tfinger.fingerId,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	654 event.tfinger.x,event.tfinger.y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	655 for(i = 0;i<MAXFINGERS;i++)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	656 if(index2fingerid[i] == event.tfinger.fingerId) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	657 index2fingerid[i] = -1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	658 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	659 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	660 finger[i].p.x = -1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	661 finger[i].p.y = -1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	662 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	663 case SDL_MULTIGESTURE:
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	664 knob.p.x = event.mgesture.x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	665 knob.p.y = event.mgesture.y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	666 knob.ang += event.mgesture.dTheta;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	667 knob.r += event.mgesture.dDist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	668 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	669
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	670
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	671
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	672 //And draw
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	673
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	674 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	675 DrawScreen(screen,h);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	676 //printf("c: (%f,%f)\n",centroid.x,centroid.y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	677 //printf("numDownFingers: %i\n",numDownFingers);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	678 //for(i=0;i<512;i++)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	679 // if(keystat[i]) printf("%i\n",i);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	680
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	681
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	682 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	683 SDL_Quit();
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	684
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	685 return 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	686 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	687

Mercurial > sdl-ios-xcode

annotate touchTest/gestureSDLTest.c @ 4657:eed063a0bf5b