using System.Collections.Generic;
using Godot;
 
namespace UI.TileSetEditorTerrain;
 
public partial class TerrainBrush : Control, IUiNodeScript
{
    public Control Root { get; set; }
    public List<Control> TerrainTextureList { get; } = new List<Control>();
 
    private TileSetEditorTerrain.Brush _uiNode;
 
    public void SetUiNode(IUiNode uiNode)
    {
        _uiNode = (TileSetEditorTerrain.Brush) uiNode;
    }
 
    public void OnDestroy()
    {
        
    }
 
    public override void _Process(double delta)
    {
        QueueRedraw();
    }
 
    public override void _Draw()
    {
        var scale = Root.Scale;
 
        //绘制区域
        for (var i = 0; i < TerrainTextureList.Count; i++)
        {
            var control = TerrainTextureList[i];
            if (control.Visible)
            {
                DrawRect(
                    new Rect2(control.Position, control.Size.AsVector2I()), new Color(1, 1, 0, 0.5f), false,
                    2f / scale.X
                );
            }
        }
        
        //绘制鼠标悬停区域
        for (var i = 0; i < TerrainTextureList.Count; i++)
        {
            var control = TerrainTextureList[i];
            if (control.Visible && control.IsMouseInRect())
            {
                var pos = Utils.GetMouseCellPosition(control) * GameConfig.TileCellSize;
                DrawRect(
                    new Rect2(pos + control.Position, GameConfig.TileCellSizeVector2I),
                    Colors.Green, false, 3f / scale.X
                );
                break;
            }
        }
    }
}