Initial commit

source/engine/engine.c

@@ -0,0 +1,122 @@
+#define PL_MPEG_IMPLEMENTATION
+#define CGLTF_IMPLEMENTATION
+#define GL_GLEXT_PROTOTYPES
+
+//#define MATHC_USE_INT16
+//#define MATHC_FLOATING_POINT_TYPE GLfloat
+//#define MATHC_USE_DOUBLE_FLOATING_POINT
+
+#define STB_DS_IMPLEMENTATION
+#include <stb_ds.h>
+
+#define STB_IMAGE_IMPLEMENTATION
+#include <stb_image.h>
+
+#include <pl_mpeg.h>
+
+#ifdef EDITOR
+#include "editor.h"
+#endif
+
+#include <SDL.h>
+#include "openglrender.h"
+#include "window.h"
+#include "camera.h"
+#include "input.h"
+#include "sprite.h"
+#include "2dphysics.h"
+#include "gameobject.h"
+#include "registry.h"
+
+#define FPS30 33
+#define FPS60 17
+#define FPS120 8;
+#define FPS144 7
+#define FPS300 3
+
+unsigned int frameCount = 0;
+Uint32 lastTick = 0;
+Uint32 frameTick = 0;
+Uint32 elapsed = 0;
+
+Uint32 physMS = FPS144;
+Uint32 physlag = 0;
+Uint32 renderMS = FPS144;
+Uint32 renderlag = 0;
+
+
+
+int main(int argc, char **args)
+{
+
+    script_init();
+
+    registry_init();
+    gameobjects = vec_make(sizeof(struct mGameObject), 100);
+    prefabs = vec_make(MAXNAME, 25);
+
+    // TODO: Init these on the heap instead
+    struct mCamera camera = { 0 };
+    camera.speed = 500;
+
+    stbi_set_flip_vertically_on_load(1);
+
+    resources_init();
+    openglInit();
+    sprite_initialize();
+
+#ifdef EDITOR
+    editor_init(window);
+#endif
+
+    phys2d_init();
+
+    quit = false;
+    SDL_Event e;
+
+    //While application is running
+    while (!quit) {
+	frameTick = SDL_GetTicks();
+	elapsed = frameTick - lastTick;
+	lastTick = frameTick;
+	deltaT = elapsed / 1000.f;
+
+	physlag += elapsed;
+	renderlag += elapsed;
+
+	input_poll();
+
+	if (physlag >= physMS) {
+	    phys2d_update(physMS / 1000.f);
+
+	    physlag -= physMS;
+	}
+
+
+	if (renderlag >= renderMS) {
+	    if (physOn) {
+		vec_walk(gameobjects, gameobject_update);
+	    }
+
+
+	    camera_2d_update(&camera, renderMS / 1000.f);
+
+	    openglRender(&camera);
+
+
+#ifdef EDITOR
+	    editor_render();
+#endif
+
+	    window_swap(window);
+
+	    renderlag -= renderMS;
+	}
+    }
+
+
+    SDL_StopTextInput();
+    SDL_Quit();
+
+    return 0;
+}