Initial CommitHEADmain

1 files changed, 92 insertions, 0 deletions

diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..726e781
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,92 @@
+#include <stdbool.h>
+#include <SDL3/SDL.h>
+#include <time.h>
+#include <stdlib.h>
+#define SDL_MAIN_USE_CALLBACKS
+#include <SDL3/SDL_main.h>
+
+#include "app.h"
+
+#define WINDOW_WIDTH 800
+#define WINDOW_HEIGHT 600
+#define WINDOW_TITLE "Match 3"
+#define MAX_DELTATIME (1000.0 / 30)
+
+SDL_Window* window;
+SDL_Renderer* renderer;
+
+application_state app_state;
+
+SDL_AppResult SDL_AppInit(void**, int, char**) {
+  SDL_Init(SDL_INIT_VIDEO);
+  srand(time(NULL));
+
+  window = SDL_CreateWindow(WINDOW_TITLE, WINDOW_WIDTH, WINDOW_HEIGHT, 0);
+  renderer = SDL_CreateRenderer(window, NULL);
+#ifndef SDL_PLATFORM_EMSCRIPTEN
+  SDL_SetRenderVSync(renderer, true);
+#endif
+
+  init_app(renderer);
+
+  return SDL_APP_CONTINUE;
+}
+
+SDL_AppResult SDL_AppEvent(void*, SDL_Event* e) {
+  if (e->type == SDL_EVENT_QUIT) {
+    return SDL_APP_SUCCESS;
+  }
+
+  switch (app_state) {
+  case game_state:
+    game_event(e);
+    break;
+
+  default:
+    break;
+  }
+
+  return SDL_APP_CONTINUE;
+}
+
+SDL_AppResult SDL_AppIterate(void*) {
+  static uint64_t then = 0, now = 0;
+
+  then = now;
+  now = SDL_GetTicks();
+
+  float dt = (now - then) / 1000.0f;
+
+  switch (app_state) {
+
+  case game_state:
+    update_game(SDL_min(dt, MAX_DELTATIME));
+    draw_game(renderer);
+    break;
+
+  default:
+    break;
+
+  }
+
+  return SDL_APP_CONTINUE;
+}
+
+void SDL_AppQuit(void*, SDL_AppResult) {
+  SDL_DestroyWindow(window);
+  SDL_DestroyRenderer(renderer);
+
+  free_app();
+
+  SDL_Quit();
+}
+
+void init_app(SDL_Renderer* renderer) {
+  init_game(renderer);
+
+  app_state = game_state;
+}
+
+void free_app() {
+  free_game();
+}