2351c43237
- Extract an enum for edges rather than using magic numbers for everything. - Remove duplicated code between FoggedEdges and ShroudedEdges by hosting the visibility function into a delegate. - Make minimap methods more readable. - Tidy formatting. - Make some fields readonly. - Remove unused usings.
99 lines
2.5 KiB
C#
99 lines
2.5 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2014 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation. For more information,
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* see COPYING.
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*/
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#endregion
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Drawing;
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namespace OpenRA
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{
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// Represents a layer of "something" that covers the map
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public class CellLayer<T> : IEnumerable<T>
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{
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public readonly Size Size;
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public readonly TileShape Shape;
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readonly T[] entries;
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public CellLayer(Map map)
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: this(map.TileShape, new Size(map.MapSize.X, map.MapSize.Y)) { }
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public CellLayer(TileShape shape, Size size)
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{
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Size = size;
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Shape = shape;
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entries = new T[size.Width * size.Height];
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}
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// Resolve an array index from cell coordinates
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int Index(CPos cell)
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{
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var uv = Map.CellToMap(Shape, cell);
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return Index(uv.X, uv.Y);
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}
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// Resolve an array index from map coordinates
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int Index(int u, int v)
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{
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return v * Size.Width + u;
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}
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/// <summary>Gets or sets the <see cref="OpenRA.CellLayer"/> using cell coordinates</summary>
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public T this[CPos cell]
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{
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get { return entries[Index(cell)]; }
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set { entries[Index(cell)] = value; }
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}
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/// <summary>Gets or sets the layer contents using raw map coordinates (not CPos!)</summary>
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public T this[int u, int v]
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{
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get { return entries[Index(u, v)]; }
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set { entries[Index(u, v)] = value; }
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}
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/// <summary>Clears the layer contents with a known value</summary>
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public void Clear(T clearValue)
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{
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for (var i = 0; i < entries.Length; i++)
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entries[i] = clearValue;
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}
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public IEnumerator<T> GetEnumerator()
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{
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return (IEnumerator<T>)entries.GetEnumerator();
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}
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IEnumerator IEnumerable.GetEnumerator()
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{
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return GetEnumerator();
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}
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}
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// Helper functions
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public static class CellLayer
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{
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/// <summary>Create a new layer by resizing another layer. New cells are filled with defaultValue.</summary>
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public static CellLayer<T> Resize<T>(CellLayer<T> layer, Size newSize, T defaultValue)
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{
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var result = new CellLayer<T>(layer.Shape, newSize);
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var width = Math.Min(layer.Size.Width, newSize.Width);
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var height = Math.Min(layer.Size.Height, newSize.Height);
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result.Clear(defaultValue);
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for (var j = 0; j < height; j++)
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for (var i = 0; i < width; i++)
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result[i, j] = layer[i, j];
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return result;
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}
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}
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}
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