#define OLC_PGE_APPLICATION #include "pixelGameEngine.h" class Example : public olc::PixelGameEngine { public: Example() { sAppName = "Example"; } public: bool OnUserCreate() override { SetPixelMode(olc::Pixel::ALPHA); // Called once at the start, so create things here for (int x = 0; x < ScreenWidth(); x++) for (int y = 0; y < ScreenHeight(); y++) Draw(x, y, olc::Pixel(rand() % 255, rand() % 255, rand()% 255)); for (int x = 50; x < ScreenWidth(); x++) for (int y = 50; y < ScreenHeight(); y++) Draw(x, y, olc::Pixel(255, 0, 0, 128)); return true; } bool OnUserUpdate(float fElapsedTime) override { // called once per frame return true; } }; int main() { Example demo; if (demo.Construct(256, 240, 4, 4)) demo.Start(); return 0; }