using System.Reflection;
using FOU.Scripts;
using FOU.Scripts.Elements;
using Godot;

public partial class Main : Node2D {
	[Export] public bool DebugVisualization = false;

	[Export] public int BrushSize = 5;
	[Export] public float TextureResolution = 0.5f;
	[Export] public int ChunksPerAxis = 2;
	[Export] public float RainAmount = 0.01f;

	public static Main Instance;

	private TextureRect mLevelDrawer;
	private Level mLevel;

	public override void _Ready() {
		mLevel = new Level(this, (int)(GetViewportRect().Size.X * TextureResolution),
								 (int)(GetViewportRect().Size.Y * TextureResolution));
		mLevelDrawer = GetNode<TextureRect>("CanvasLayer/LevelDrawer");

		Instance = this;
	}

	public override void _Process(double delta) {
		mLevel.Update();
		mLevelDrawer.Texture = ImageTexture.CreateFromImage(mLevel.DrawLevel());
	}

	public override void _UnhandledInput(InputEvent @event) {
		if (@event is InputEventMouseButton eventMouseButton) {

			if (eventMouseButton.IsPressed()) {
				Vector2 mouse = GetViewport().GetMousePosition();

				float mappedX = mouse.X / (GetViewportRect().Size.X / mLevel.Resolution.X);
				float mappedY = mouse.Y / (GetViewportRect().Size.Y / mLevel.Resolution.Y);

				mLevel.WritePixel<Dirt>((int)mappedX, (int)mappedY, BrushSize);
			}
		} else base._UnhandledInput(@event);
	}
}