Mercurial > sdl-ios-xcode
annotate XCodeiPhoneOS/Demos/src/rectangles.c @ 3209:1c64375a4dfb
Corrected documentation error for SDL_RenderFill.
author | Bob Pendleton <bob@pendleton.com> |
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date | Tue, 30 Jun 2009 22:19:10 +0000 |
parents | 375ee92745e8 |
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1 /* |
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2 * rectangles.c |
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3 * written by Holmes Futrell |
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4 * use however you want |
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5 */ |
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6 |
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7 #include "SDL.h" |
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8 #include <time.h> |
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9 #include "common.h" |
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10 |
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11 void |
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12 render(void) |
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13 { |
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14 |
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15 Uint8 r, g, b; |
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16 /* Come up with a random rectangle */ |
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17 SDL_Rect rect; |
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18 rect.w = randomInt(64, 128); |
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19 rect.h = randomInt(64, 128); |
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20 rect.x = randomInt(0, SCREEN_WIDTH); |
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21 rect.y = randomInt(0, SCREEN_HEIGHT); |
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22 |
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23 /* Come up with a random color */ |
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24 r = randomInt(50, 255); |
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25 g = randomInt(50, 255); |
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26 b = randomInt(50, 255); |
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27 |
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28 /* Fill the rectangle in the color */ |
3093 | 29 SDL_SetRenderDrawColor(r, g, b, 255); |
30 SDL_RenderFill(&rect); | |
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31 |
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32 /* update screen */ |
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33 SDL_RenderPresent(); |
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34 |
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35 } |
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36 |
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37 int |
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38 main(int argc, char *argv[]) |
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39 { |
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40 |
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41 SDL_WindowID windowID; |
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42 int done; |
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43 SDL_Event event; |
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44 |
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45 /* initialize SDL */ |
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46 if (SDL_Init(SDL_INIT_VIDEO) < 0) { |
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47 fatalError("Could not initialize SDL"); |
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48 } |
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49 |
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50 /* seed random number generator */ |
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51 srand(time(NULL)); |
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52 |
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53 /* create window and renderer */ |
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54 windowID = |
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55 SDL_CreateWindow(NULL, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT, |
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56 SDL_WINDOW_SHOWN); |
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57 if (windowID == 0) { |
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58 fatalError("Could not initialize Window"); |
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59 } |
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60 if (SDL_CreateRenderer(windowID, -1, 0) != 0) { |
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61 fatalError("Could not create renderer"); |
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62 } |
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63 |
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64 /* Fill screen with black */ |
3093 | 65 SDL_SetRenderDrawColor(0, 0, 0, 255); |
66 SDL_RenderFill(NULL); | |
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67 |
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68 /* Enter render loop, waiting for user to quit */ |
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69 done = 0; |
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70 while (!done) { |
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71 while (SDL_PollEvent(&event)) { |
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72 if (event.type == SDL_QUIT) { |
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73 done = 1; |
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74 } |
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75 } |
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76 render(); |
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77 SDL_Delay(1); |
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78 } |
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79 |
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80 /* shutdown SDL */ |
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81 SDL_Quit(); |
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82 |
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83 return 0; |
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84 } |