66 lines
2.1 KiB
C#
66 lines
2.1 KiB
C#
using System.Collections.Generic;
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using System.Linq;
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using Godot;
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/// <summary>
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/// 图块映射辅助类
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/// </summary>
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public partial class TileMapping : Node {
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/// <summary>
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/// 从图块坐标到像素坐标的映射。如果不为空，则使用此映射。
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/// </summary>
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private readonly Dictionary<Vector2I, Vector2I> _pixelMap;
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/// <summary>
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/// 如果 pixelMap 为空，使用此偏移量将图块坐标转换为像素坐标。
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/// </summary>
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private Vector2I _pixelOffset;
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/// <summary>
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/// 图块区域
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/// </summary>
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private Rect2I _tileRect;
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/// <summary>
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/// 构造函数，使用坐标映射字典
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/// </summary>
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/// <param name="map">坐标映射字典</param>
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public TileMapping(Dictionary<Vector2I, Vector2I> map) {
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_pixelMap = map;
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_pixelOffset = new Vector2I(-int.MaxValue, -int.MaxValue);
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}
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/// <summary>
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/// 构造函数，使用偏移量和区域
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/// </summary>
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/// <param name="offset">偏移量</param>
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/// <param name="rect">区域</param>
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public TileMapping(Vector2I offset, Rect2I rect) {
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_pixelMap = null;
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_pixelOffset = offset;
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_tileRect = rect;
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}
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public TileMapping() { }
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/// <summary>
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/// 应用映射到TileMapLayer
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/// </summary>
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/// <param name="layer">TileMapLayer</param>
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public void Apply(TileMapLayer layer) {
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// if pixelMap is not null, use all the pairs in pixelMap to set the tiles.
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if (_pixelMap != null) {
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var sourceId = layer.GetCellSourceId(_pixelMap.Keys.First());
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foreach (var pair in _pixelMap) layer.SetCell(pair.Key, sourceId, pair.Value);
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}
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else {
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var sourceId = layer.GetCellSourceId(_tileRect.Position);
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GD.Print(_tileRect);
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for (var x = _tileRect.Position.X; x < _tileRect.End.X; x++)
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for (var y = _tileRect.Position.Y; y < _tileRect.End.Y; y++) {
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var pos = new Vector2I(x, y);
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layer.SetCell(pos, sourceId, pos + _pixelOffset);
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}
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}
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}
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} |