sdl-ios-xcode: Xcode-iPhoneOS/Demos/src/happy.c annotate

author	Sam Lantinga <slouken@libsdl.org>
date	Sat, 19 Sep 2009 07:32:36 +0000
parents
children	64ce267332c6

rev	line source
3277 20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 /*
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	2 * happy.c
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	3 * written by Holmes Futrell
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4 * use however you want
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	5 */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	6
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	7 #include "SDL.h"
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	8 #include "common.h"
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 #define NUM_HAPPY_FACES 100 /* number of faces to draw */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11 #define MILLESECONDS_PER_FRAME 16 /* about 60 frames per second */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	12 #define HAPPY_FACE_SIZE 32 /* width and height of happyface (pixels) */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	13
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14 static SDL_TextureID texture_id = 0; /* reference to texture holding happyface */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	15
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	16 static struct
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	17 {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18 float x, y; /* position of happyface */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 float xvel, yvel; /* velocity of happyface */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 } faces[NUM_HAPPY_FACES];
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	21
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	22 /*
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23 Sets initial positions and velocities of happyfaces
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	24 units of velocity are pixels per millesecond
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	25 */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	26 void
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	27 initializeHappyFaces()
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	28 {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	29 int i;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	30 for (i = 0; i < NUM_HAPPY_FACES; i++) {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	31 faces[i].x = randomFloat(0.0f, SCREEN_WIDTH - HAPPY_FACE_SIZE);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	32 faces[i].y = randomFloat(0.0f, SCREEN_HEIGHT - HAPPY_FACE_SIZE);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	33 faces[i].xvel = randomFloat(-0.1f, 0.1f);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	34 faces[i].yvel = randomFloat(-0.1f, 0.1f);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	35 }
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	36 }
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	37
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	38 void
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	39 render(void)
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	40 {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	41
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	42 int i;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	43 SDL_Rect srcRect;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	44 SDL_Rect dstRect;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	45
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	46 /* setup boundaries for happyface bouncing */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	47 Uint16 maxx = SCREEN_WIDTH - HAPPY_FACE_SIZE;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	48 Uint16 maxy = SCREEN_HEIGHT - HAPPY_FACE_SIZE;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	49 Uint16 minx = 0;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	50 Uint16 miny = 0;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	51
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	52 /* setup rects for drawing */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	53 srcRect.x = 0;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	54 srcRect.y = 0;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	55 srcRect.w = HAPPY_FACE_SIZE;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	56 srcRect.h = HAPPY_FACE_SIZE;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	57 dstRect.w = HAPPY_FACE_SIZE;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	58 dstRect.h = HAPPY_FACE_SIZE;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	59
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	60 /* fill background in with black */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	61 SDL_SetRenderDrawColor(0, 0, 0, 255);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	62 SDL_RenderFill(NULL);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	63
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	64 /*
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	65 loop through all the happy faces:
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	66 - update position
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	67 - update velocity (if boundary is hit)
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	68 - draw
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	69 */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	70 for (i = 0; i < NUM_HAPPY_FACES; i++) {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	71 faces[i].x += faces[i].xvel * MILLESECONDS_PER_FRAME;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	72 faces[i].y += faces[i].yvel * MILLESECONDS_PER_FRAME;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	73 if (faces[i].x > maxx) {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	74 faces[i].x = maxx;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	75 faces[i].xvel = -faces[i].xvel;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	76 } else if (faces[i].y > maxy) {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	77 faces[i].y = maxy;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	78 faces[i].yvel = -faces[i].yvel;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	79 }
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	80 if (faces[i].x < minx) {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	81 faces[i].x = minx;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	82 faces[i].xvel = -faces[i].xvel;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	83 } else if (faces[i].y < miny) {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	84 faces[i].y = miny;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	85 faces[i].yvel = -faces[i].yvel;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86 }
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	87 dstRect.x = faces[i].x;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	88 dstRect.y = faces[i].y;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	89 SDL_RenderCopy(texture_id, &srcRect, &dstRect);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	90 }
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	91 /* update screen */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	92 SDL_RenderPresent();
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	93
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	94 }
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	95
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	96 /*
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	97 loads the happyface graphic into a texture
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	98 */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	99 void
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100 initializeTexture()
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	101 {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	102 SDL_Surface *bmp_surface;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	103 SDL_Surface *bmp_surface_rgba;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	104 int format = SDL_PIXELFORMAT_ABGR8888; /* desired texture format */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	105 Uint32 Rmask, Gmask, Bmask, Amask; /* masks for desired format */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	106 int bpp; /* bits per pixel for desired format */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	107 /* load the bmp */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	108 bmp_surface = SDL_LoadBMP("icon.bmp");
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	109 if (bmp_surface == NULL) {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	110 fatalError("could not load bmp");
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	111 }
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	112 /* set white to transparent on the happyface */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	113 SDL_SetColorKey(bmp_surface, 1,
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	114 SDL_MapRGB(bmp_surface->format, 255, 255, 255));
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	115 SDL_PixelFormatEnumToMasks(format, &bpp, &Rmask, &Gmask, &Bmask, &Amask);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	116 /*
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	117 create a new RGBA surface and blit the bmp to it
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	118 this is an extra step, but it seems to be necessary
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	119 is this a bug?
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	120 */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	121 bmp_surface_rgba =
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	122 SDL_CreateRGBSurface(0, bmp_surface->w, bmp_surface->h, bpp, Rmask,
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	123 Gmask, Bmask, Amask);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	124 SDL_BlitSurface(bmp_surface, NULL, bmp_surface_rgba, NULL);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	125
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	126 /* convert RGBA surface to texture */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	127 texture_id = SDL_CreateTextureFromSurface(format, bmp_surface_rgba);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	128 if (texture_id == 0) {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	129 fatalError("could not create texture");
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	130 }
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	131 SDL_SetTextureBlendMode(texture_id, SDL_BLENDMODE_BLEND);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	132
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	133 /* free up allocated memory */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	134 SDL_FreeSurface(bmp_surface_rgba);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	135 SDL_FreeSurface(bmp_surface);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	136 }
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	137
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	138 int
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	139 main(int argc, char *argv[])
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	140 {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	141
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	142 SDL_WindowID windowID;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	143 Uint32 startFrame;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	144 Uint32 endFrame;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	145 Uint32 delay;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	146 int done;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	147
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	148 /* initialize SDL */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	149 if (SDL_Init(SDL_INIT_VIDEO) < 0) {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	150 fatalError("Could not initialize SDL");
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	151 }
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	152 windowID = SDL_CreateWindow(NULL, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT,
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	153 SDL_WINDOW_OPENGL \| SDL_WINDOW_SHOWN \|
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	154 SDL_WINDOW_BORDERLESS);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	155
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	156 SDL_CreateRenderer(windowID, -1, 0);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	157
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	158 initializeTexture();
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	159 initializeHappyFaces();
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	160
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	161 /* main loop */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	162 done = 0;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	163 while (!done) {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	164 startFrame = SDL_GetTicks();
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	165 SDL_Event event;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	166 while (SDL_PollEvent(&event)) {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	167 if (event.type == SDL_QUIT) {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	168 done = 1;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	169 }
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	170 }
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	171 render();
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	172 endFrame = SDL_GetTicks();
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	173
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	174 /* figure out how much time we have left, and then sleep */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	175 delay = MILLESECONDS_PER_FRAME - (endFrame - startFrame);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	176 if (delay < 0) {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	177 delay = 0;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	178 } else if (delay > MILLESECONDS_PER_FRAME) {
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	179 delay = MILLESECONDS_PER_FRAME;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	180 }
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	181 SDL_Delay(delay);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	182 }
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	183
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	184 /* cleanup */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	185 SDL_DestroyTexture(texture_id);
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	186 /* shutdown SDL */
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	187 SDL_Quit();
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	188
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	189 return 0;
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	190
20326ba2bda2 This name inconsistency has been bugging me for a while... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	191 }

3277

20326ba2bda2 This name inconsistency has been bugging me for a while...