1 files changed, 30 insertions, 5 deletions

diff --git a/main.c b/main.c
index 646d79b..da37ce4 100644
--- a/main.c
+++ b/main.c
@@ -54,15 +54,15 @@ int main() {
 	SDL_Texture *foreground = createTiledTexture(context, "foreground.bmp");
 	SDL_SetTextureBlendMode(foreground, SDL_BLENDMODE_MOD);
 
-	SDL_Surface *mask_surface = SDL_CreateRGBSurfaceWithFormat(0,
-			WINDOW_W, WINDOW_H, 32, SDL_PIXELFORMAT_RGBA8888);
-
 	SDL_Texture *terrain = SDL_CreateTexture(context,
 			SDL_PIXELFORMAT_RGBA8888,
 			SDL_TEXTUREACCESS_TARGET,
 			WINDOW_W, WINDOW_H);
 	SDL_SetTextureBlendMode(terrain, SDL_BLENDMODE_BLEND);
 
+	// Terrain generation
+	SDL_Surface *mask_surface = SDL_CreateRGBSurfaceWithFormat(0,
+			WINDOW_W, WINDOW_H, 32, SDL_PIXELFORMAT_RGBA8888);
 	SDL_LockSurface(mask_surface);
 	for (int i = 0; i < mask_surface->w * mask_surface->h; i++) {
 		((Uint32 *)mask_surface->pixels)[i] = 0x00000000;
@@ -72,9 +72,18 @@ int main() {
 	}
 	SDL_UnlockSurface(mask_surface);
 	SDL_Texture *mask_texture = SDL_CreateTextureFromSurface(context, mask_surface);
-
 	renderMaskedTexture(context, terrain, mask_texture, foreground);
 
+	// Player variables
+	float player_x = 100;
+	float player_y = 100;
+	float player_vy = 0;
+	float player_ay = 1;
+
+	// Timer variables
+	float old_t = 0.0;
+
+	// Event handling
 	int exit = 0;
 	while (!exit) {
 		SDL_Event event = {0};
@@ -114,14 +123,30 @@ int main() {
 
 			renderMaskedTexture(context, terrain, mask_texture, foreground);
 		}
+
+		// Main loop
 		SDL_SetRenderDrawColor(context, 40, 40, 40, 255);
 		SDL_RenderClear(context);
 
 		SDL_RenderCopy(context, background, 0, 0);
 		SDL_RenderCopy(context, terrain, 0, 0);
 
+		// Time delta calculation
+		double new_t = (double) SDL_GetTicks64() / 1000.0;
+		double dt = new_t - old_t;
+		old_t = new_t;
+
+		// Player logic
+		player_y += player_vy * dt;
+		player_vy += player_ay * dt;
+
+		// Draw player
+		SDL_SetRenderDrawColor(context, 255, 0, 0, 255);
+		SDL_Rect player_rect = {player_x - 5, WINDOW_H - player_y - 10, 10, 10 };
+		SDL_RenderFillRect(context, &player_rect);
+
 		SDL_RenderPresent(context);
-		SDL_Delay(10);
+		SDL_Delay(1);
 	}
 
 	SDL_DestroyRenderer(context);