main.c 2.2 KB

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  1. #include "stdio.h"
  2. #include "SDL2/SDL.h"
  3. #include "world.h"
  4. #include "sdl_helper.h"
  5. #include <time.h>
  6. SDL_Window *win;
  7. extern struct dd_world *world_main_create();
  8. int init_sdl() {
  9. // init sdl
  10. if (SDL_Init(SDL_INIT_VIDEO) != 0) {
  11. printf("SDL_Init Error: %s\n", SDL_GetError());
  12. return 1;
  13. }
  14. // open window
  15. win = SDL_CreateWindow("Hello World!", 100, 100, DD_GAME_WIDTH, DD_GAME_HEIGHT, SDL_WINDOW_SHOWN);
  16. if (!win){
  17. printf("SDL_CreateWindow Error: %s\n", SDL_GetError());
  18. SDL_Quit();
  19. return 1;
  20. }
  21. // create renderer
  22. dd_ren = SDL_CreateRenderer(win, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
  23. if (!dd_ren){
  24. SDL_DestroyWindow(win);
  25. printf("SDL_CreateRenderer Error: %s\n", SDL_GetError());
  26. SDL_Quit();
  27. return 1;
  28. }
  29. if ((IMG_Init(IMG_INIT_PNG) & IMG_INIT_PNG) != IMG_INIT_PNG){
  30. printf("IMG_Init Error: %s\n", SDL_GetError());
  31. SDL_Quit();
  32. return 1;
  33. }
  34. return 0;
  35. }
  36. int main() {
  37. srand((unsigned int) time(NULL));
  38. DD_GAME_WIDTH = 640;
  39. DD_GAME_HEIGHT = 480;
  40. // init sdl, including window and renderer
  41. if (init_sdl() != 0) return -1;
  42. // create world
  43. dd_cworld = world_main_create();
  44. dd_game_running = 1;
  45. SDL_Event e;
  46. // loop
  47. while (dd_game_running){
  48. while (SDL_PollEvent(&e)) {
  49. switch (e.type) {
  50. case SDL_QUIT:
  51. dd_game_running = 0;
  52. break;
  53. case SDL_KEYDOWN:
  54. dd_cworld->key(dd_cworld, e.key.keysym.scancode, DD_KEY_STATE_PRESSED);
  55. break;
  56. case SDL_KEYUP:
  57. dd_cworld->key(dd_cworld, e.key.keysym.scancode, DD_KEY_STATE_RELEASED);
  58. break;
  59. case SDL_MOUSEBUTTONDOWN:
  60. //printf("mouse button down on %d,%d\n", e.button.x, e.button.y);
  61. dd_cworld->click(dd_cworld, e.button.x, e.button.y);
  62. break;
  63. case SDL_MOUSEBUTTONUP:
  64. //printf("mouse up down on %d,%d\n", e.button.x, e.button.y);
  65. break;
  66. }
  67. }
  68. // update
  69. dd_cworld->update(dd_cworld);
  70. // draw
  71. SDL_RenderClear(dd_ren);
  72. dd_cworld->draw(dd_cworld);
  73. SDL_RenderPresent(dd_ren);
  74. // pause, till next frame
  75. SDL_Delay(1000/30);
  76. // check if menu wants to quit
  77. if (dd_cworld->next == -1) dd_game_running = 0;
  78. }
  79. free(dd_cworld);
  80. SDL_DestroyRenderer(dd_ren);
  81. SDL_DestroyWindow(win);
  82. IMG_Quit();
  83. SDL_Quit();
  84. return 0;
  85. }