#include "raylib.h"
#include "raymath.h"
#include <math.h>

#define VIRTUAL_WIDTH 800
#define VIRTUAL_HEIGHT 600

#define FONT_SIZE 20

#define PADDLE_SPEED 4.0
#define PADDLE_WIDTH VIRTUAL_WIDTH / 8.0
#define PADDLE_HEIGHT VIRTUAL_HEIGHT / 30.0

int main() {
	InitWindow(0, 0, "Breakout");
	ToggleFullscreen();

	const int currentMonitor = GetCurrentMonitor();
	const int monitorWidth = GetMonitorWidth(currentMonitor);
	const int monitorHeight = GetMonitorHeight(currentMonitor);

	SetTargetFPS(60);

	Camera2D camera = {0}; // Game world camera
	// camera.offset = (Vector2){SCREEN_WIDTH / 2.0f, SCREEN_HEIGHT / 2.0f};
	camera.zoom = 1.0f;

	const RenderTexture2D renderTexture = LoadRenderTexture(VIRTUAL_WIDTH, VIRTUAL_HEIGHT);
	const Rectangle renderTextureSrc = (Rectangle){0.0f, 0.0f, VIRTUAL_WIDTH, -VIRTUAL_HEIGHT};
	const Rectangle renderTextureDest = (Rectangle){0.0f, 0.0f, monitorWidth, monitorHeight};
	const Vector2 renderTextureOrig = {0};

	float paddleX = 0;
	Vector2 ballPos = (Vector2){VIRTUAL_WIDTH / 2.0f, VIRTUAL_HEIGHT / 2.0f};
	int score = 0;

	while (!WindowShouldClose()) {
		Vector2 mouseDelta = GetMouseDelta();

		DisableCursor();

		paddleX = Clamp(paddleX + mouseDelta.x, 0, VIRTUAL_WIDTH - PADDLE_WIDTH);

		BeginTextureMode(renderTexture);
		{
			ClearBackground(BLACK);
			DrawRectangle(paddleX, VIRTUAL_HEIGHT - PADDLE_HEIGHT - 10, PADDLE_WIDTH, PADDLE_HEIGHT, RAYWHITE);
		}
		EndTextureMode();

		BeginDrawing();
		{
			ClearBackground(BLACK);
			BeginMode2D(camera);
			{
				DrawCircle(ballPos.x, ballPos.y, 20, RAYWHITE);

				DrawTexturePro(renderTexture.texture, renderTextureSrc, renderTextureDest, renderTextureOrig, 0, WHITE);
			}
			EndMode2D();

			// char score[] = "Score";
			const char *scoreText = TextFormat("Score %08i", score);
			float scoreWidth = MeasureText(scoreText, FONT_SIZE) + 10;
			DrawText(scoreText, 10, 10, FONT_SIZE, RAYWHITE);

			DrawFPS(GetScreenWidth() - 80, 5);
			// DrawText(TextFormat("%ix%i", monitorWidth, monitorHeight), 10, 40, FONT_SIZE, GOLD);
		}
		EndDrawing();
	}

	CloseWindow();
}