Red Square

Makefile

@@ -1,5 +1,5 @@
 build: 
-	gcc -Wall -std=c99 ./src/*.c -o renderer
+	gcc -Wall -std=c99 ./src/*.c -lSDL2 -o renderer
 
 run:
 	./renderer

src/main.c

@@ -2,7 +2,10 @@
 #include <stdbool.h>
 #include <SDL2/SDL.h>
 
-SDL_Window* window = SDL_CreateWindow();
+bool is_running= false;
+SDL_Window* window = NULL;
+SDL_Renderer* renderer = NULL;
+
 
 bool initialize_window(void) {
     if (SDL_Init(SDL_INIT_EVERYTHING) != 0) {
@@ -10,16 +13,69 @@ bool initialize_window(void) {
 	return false;
 	
     }
+    // Create a SDL window 
+    window = SDL_CreateWindow(
+	NULL,
+	SDL_WINDOWPOS_CENTERED,
+	SDL_WINDOWPOS_CENTERED,
+	800,
+	600,
+	SDL_WINDOW_BORDERLESS
+    );
+    if (!window) {
+	fprintf(stderr, "Error creating SDL window.\n");
+	return false;
+    } 
     
-    SDL_Window* window = SDL_CreateWindow();
+    // Create a SDL renderer 
-    
+    renderer = SDL_CreateRenderer(window, -1, 0);
-    // TODO: Create a SDL renderer
+    if (!renderer) {
+	fprintf(stderr, "Error creating SDL error.\n");
+	return false;
+    }    
+
     return true;
 }
 
-int main(void) {
+void setup(void){
+    //TODO
+}
 
-    initialize_window();
+void process_input(void){
+    SDL_Event event;
+    SDL_PollEvent(&event);
+    
+    switch (event.type) {
+	case SDL_QUIT:
+	    is_running = false;
+	    break;
+	case SDL_KEYDOWN:
+	    if (event.key.keysym.sym == SDLK_ESCAPE)
+		is_running = false;
+	    break;
+    }
+}	
+void update(void){
+    //TODO
+}
+void render(void){
+    SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
+    SDL_RenderClear(renderer);
+
+    SDL_RenderPresent(renderer);
+}
+
+int main(void) {    
+    is_running = initialize_window();
+
+
+    setup();
+
+    while (is_running) {
+	process_input();
+	update();
+	render();
+    }
 
     return 0;
 }