Mercurial > sdl-ios-xcode

annotate test/testspriteminimal.c @ 4969:d2247eb39fab

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Need to include SDL_main.h ... eh, just include everything. :)
author Sam Lantinga <slouken@libsdl.org>
date Mon, 10 Jan 2011 11:22:07 -0800
parents 64ce267332c6
children ad50b3db78bd
rev   line source
3417
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
1 /* Simple program: Move N sprites around on the screen as fast as possible */
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
2
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
3 #include <stdlib.h>
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
4 #include <stdio.h>
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
5 #include <time.h>
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
6
4969
d2247eb39fab Need to include SDL_main.h ... eh, just include everything. :)
Sam Lantinga <slouken@libsdl.org>
parents: 3685
diff changeset
7 #include "SDL.h"
3417
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
8
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
9 #define WINDOW_WIDTH 640
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
10 #define WINDOW_HEIGHT 480
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
11 #define NUM_SPRITES 100
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
12 #define MAX_SPEED 1
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
13
3685
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
parents: 3596
diff changeset
14 static SDL_Texture *sprite;
3417
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
15 static SDL_Rect positions[NUM_SPRITES];
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
16 static SDL_Rect velocities[NUM_SPRITES];
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
17 static int sprite_w, sprite_h;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
18
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
19 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
20 static void
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
21 quit(int rc)
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
22 {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
23 exit(rc);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
24 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
25
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
26 int
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
27 LoadSprite(char *file)
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
28 {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
29 SDL_Surface *temp;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
30
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
31 /* Load the sprite image */
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
32 temp = SDL_LoadBMP(file);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
33 if (temp == NULL) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
34 fprintf(stderr, "Couldn't load %s: %s", file, SDL_GetError());
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
35 return (-1);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
36 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
37 sprite_w = temp->w;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
38 sprite_h = temp->h;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
39
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
40 /* Set transparent pixel as the pixel at (0,0) */
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
41 if (temp->format->palette) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
42 SDL_SetColorKey(temp, SDL_TRUE, *(Uint8 *) temp->pixels);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
43 } else {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
44 switch (temp->format->BitsPerPixel) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
45 case 15:
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
46 SDL_SetColorKey(temp, SDL_TRUE,
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
47 (*(Uint16 *) temp->pixels) & 0x00007FFF);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
48 break;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
49 case 16:
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
50 SDL_SetColorKey(temp, SDL_TRUE, *(Uint16 *) temp->pixels);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
51 break;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
52 case 24:
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
53 SDL_SetColorKey(temp, SDL_TRUE,
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
54 (*(Uint32 *) temp->pixels) & 0x00FFFFFF);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
55 break;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
56 case 32:
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
57 SDL_SetColorKey(temp, SDL_TRUE, *(Uint32 *) temp->pixels);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
58 break;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
59 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
60 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
61
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
62 /* Create textures from the image */
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
63 sprite = SDL_CreateTextureFromSurface(0, temp);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
64 if (!sprite) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
65 SDL_SetColorKey(temp, 0, 0);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
66 sprite = SDL_CreateTextureFromSurface(0, temp);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
67 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
68 if (!sprite) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
69 fprintf(stderr, "Couldn't create texture: %s\n", SDL_GetError());
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
70 SDL_FreeSurface(temp);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
71 return (-1);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
72 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
73 SDL_FreeSurface(temp);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
74
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
75 /* We're ready to roll. :) */
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
76 return (0);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
77 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
78
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
79 void
3685
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
parents: 3596
diff changeset
80 MoveSprites(SDL_Window * window, SDL_Texture * sprite)
3417
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
81 {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
82 int i;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
83 int window_w = WINDOW_WIDTH;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
84 int window_h = WINDOW_HEIGHT;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
85 SDL_Rect *position, *velocity;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
86
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
87 /* Draw a gray background */
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
88 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
89 SDL_RenderClear();
3417
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
90
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
91 /* Move the sprite, bounce at the wall, and draw */
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
92 for (i = 0; i < NUM_SPRITES; ++i) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
93 position = &positions[i];
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
94 velocity = &velocities[i];
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
95 position->x += velocity->x;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
96 if ((position->x < 0) || (position->x >= (window_w - sprite_w))) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
97 velocity->x = -velocity->x;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
98 position->x += velocity->x;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
99 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
100 position->y += velocity->y;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
101 if ((position->y < 0) || (position->y >= (window_h - sprite_h))) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
102 velocity->y = -velocity->y;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
103 position->y += velocity->y;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
104 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
105
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
106 /* Blit the sprite onto the screen */
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
107 SDL_RenderCopy(sprite, NULL, position);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
108 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
109
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
110 /* Update the screen! */
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
111 SDL_RenderPresent();
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
112 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
113
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
114 int
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
115 main(int argc, char *argv[])
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
116 {
3685
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
parents: 3596
diff changeset
117 SDL_Window *window;
3417
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
118 int i, done;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
119 SDL_Event event;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
120
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
121 window = SDL_CreateWindow("Happy Smileys",
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
122 SDL_WINDOWPOS_UNDEFINED,
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
123 SDL_WINDOWPOS_UNDEFINED,
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
124 WINDOW_WIDTH, WINDOW_HEIGHT,
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
125 SDL_WINDOW_SHOWN);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
126 if (!window) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
127 quit(2);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
128 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
129
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
130 if (LoadSprite("icon.bmp") < 0) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
131 quit(2);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
132 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
133
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
134 /* Initialize the sprite positions */
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
135 srand(time(NULL));
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
136 for (i = 0; i < NUM_SPRITES; ++i) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
137 positions[i].x = rand() % (WINDOW_WIDTH - sprite_w);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
138 positions[i].y = rand() % (WINDOW_HEIGHT - sprite_h);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
139 positions[i].w = sprite_w;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
140 positions[i].h = sprite_h;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
141 velocities[i].x = 0;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
142 velocities[i].y = 0;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
143 while (!velocities[i].x && !velocities[i].y) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
144 velocities[i].x = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
145 velocities[i].y = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
146 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
147 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
148
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
149 /* Main render loop */
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
150 done = 0;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
151 while (!done) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
152 /* Check for events */
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
153 while (SDL_PollEvent(&event)) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
154 if (event.type == SDL_QUIT || event.type == SDL_KEYDOWN) {
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
155 done = 1;
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
156 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
157 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
158 MoveSprites(window, sprite);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
159 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
160
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
161 quit(0);
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
162 }
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
163
64a60c5d502e Automatically initialize the video system and create a renderer to simplify use.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
164 /* vi: set ts=4 sw=4 expandtab: */