using Godot;
using System;

public partial class TestMap : TileMapLayer
{
	/// <summary>
	/// The last cell that was highlighted. Used to avoid unnecessary updates.
	/// </summary>
	private Vector2I lastHighlightCell;
	private readonly Vector2I highlightTileCoord = new(0, 5);
	private readonly Vector2I vector2INegOne = new(-1, -1);
	// Called when the node enters the scene tree for the first time.
	public override void _Ready()
	{
		lastHighlightCell = vector2INegOne;
	}

	// Called every frame. 'delta' is the elapsed time since the previous frame.
	public override void _Process(double delta)
	{
		Vector2 mousePos = GetLocalMousePosition();
		Vector2I cell = LocalToMap(mousePos);

		if (cell != lastHighlightCell)
		{
			if (lastHighlightCell != vector2INegOne)
			{
				EraseCell(lastHighlightCell);
			}
			lastHighlightCell = cell;
			SetCell(cell, 0, highlightTileCoord);
			GD.Print("Mouse is over cell: ", cell);
		}
	}
}