package main

import (
	rl "github.com/gen2brain/raylib-go/raylib"
)

func main() {
	screenWidth := int32(800)
	screenHeight := int32(450)

	rl.InitWindow(screenWidth, screenHeight, "Bouncing Ball in Go - raylib")
	defer rl.CloseWindow()

	rl.SetTargetFPS(60)

	// Ball properties
	ballRadius := float32(20)
	ballPos := rl.NewVector2(float32(screenWidth)/2.0, float32(screenHeight)/2.0)
	ballSpeed := rl.NewVector2(4, 3)
	ballColor := rl.Red

	for !rl.WindowShouldClose() {
		// Update
		ballPos.X += ballSpeed.X
		ballPos.Y += ballSpeed.Y

		// Bounce on edges
		if ballPos.X >= float32(screenWidth)-ballRadius || ballPos.X <= ballRadius {
			ballSpeed.X *= -1
		}
		if ballPos.Y >= float32(screenHeight)-ballRadius || ballPos.Y <= ballRadius {
			ballSpeed.Y *= -1
		}

		// Draw
		rl.BeginDrawing()
		rl.ClearBackground(rl.RayWhite)

		rl.DrawText("Bouncing Ball Example", 10, 10, 20, rl.DarkGray)
		rl.DrawCircleV(ballPos, ballRadius, ballColor)

		rl.EndDrawing()
	}
}