Add AA samples as command line argument

main.cpp

@@ -38,7 +38,14 @@ static void mouse_callback(GLFWwindow* window, double xpos, double ypos) {
     world->emit<MouseMoveEvent>({xpos, ypos});
 }
 
-int main() {
+int main(int argc, char **argv) {
+    // Parse command line parameters
+    int aa_samples = 4;
+
+    for (int i = 0; i < argc; ++i) {
+        if (strcmp(argv[i], "-a") == 0) aa_samples = std::stoi(argv[i + 1]);
+    }
+
     // TODO: Move this to RenderSystem?
     GLFWwindow *window;
 
@@ -47,7 +54,7 @@ int main() {
         return -1;
     
     // Anti Aliasing
-    glfwWindowHint(GLFW_SAMPLES, 4);
+    glfwWindowHint(GLFW_SAMPLES, aa_samples);
 
     /* Create a windowed mode window and its OpenGL context */
     window = glfwCreateWindow(1280, 720, "ECSGame", NULL, NULL);