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using System; |
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using System.Collections.Generic; |
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using System.IO; |
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using Oni.Imaging; |
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|
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namespace Oni.Akira |
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{ |
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internal class RoomGrid |
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{ |
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#region Private data |
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private static readonly Color[] gridColors = new[] |
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{ |
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new Color(255, 255, 255), |
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new Color(0x90, 0xee, 0x90), |
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new Color(0xad, 0xd8, 0xe6), |
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new Color(0x87, 0xce, 0xfa), |
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new Color(0, 255, 0), |
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new Color(0, 0, 255), |
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new Color(0, 0, 128), |
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new Color(0, 128, 0), |
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new Color(255, 165, 0), |
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new Color(255, 0, 0) |
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}; |
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|
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private const int origin = -2; |
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private const float tileSize = 4.0f; |
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private readonly int xOrigin = -2; |
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private readonly int xTiles; |
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private readonly int zOrigin = -2; |
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private readonly int zTiles; |
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private readonly byte[] data; |
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private readonly byte[] debugData; |
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#endregion |
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|
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public RoomGrid(int xTiles, int zTiles, byte[] data, byte[] debugData) |
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{ |
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this.xTiles = xTiles; |
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this.zTiles = zTiles; |
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this.data = data; |
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this.debugData = debugData; |
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} |
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|
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public static RoomGrid FromImage(Surface image) |
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{ |
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var data = new byte[image.Width * image.Height]; |
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|
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for (int z = 0; z < image.Height; z++) |
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{ |
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for (int x = 0; x < image.Width; x++) |
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{ |
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int type = Array.IndexOf(gridColors, image[x, z]); |
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|
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if (type == -1) |
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throw new InvalidDataException(string.Format("Color '{0}' does not match a valid tile type", image[x, z])); |
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|
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data[z * image.Width + x] = (byte)type; |
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} |
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} |
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|
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return new RoomGrid(image.Width, image.Height, data, null); |
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} |
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|
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public static RoomGrid FromCompressedData(int xTiles, int zTiles, byte[] compressedData) |
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{ |
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var data = new byte[xTiles * zTiles]; |
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|
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if (compressedData != null) |
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{ |
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int k = 0; |
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|
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for (int i = 0; i < compressedData.Length;) |
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{ |
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byte run = compressedData[i++]; |
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byte type = (byte)(run & 0x0f); |
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byte count = (byte)(run >> 4); |
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|
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if (count == 0) |
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count = compressedData[i++]; |
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|
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for (int j = 0; j < count; j++) |
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data[k++] = type; |
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} |
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} |
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|
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return new RoomGrid(xTiles, zTiles, data, null); |
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} |
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|
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public int XTiles => xTiles; |
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public int ZTiles => zTiles; |
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public float TileSize => tileSize; |
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public int XOrigin => xOrigin; |
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public int ZOrigin => zOrigin; |
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public byte[] DebugData => debugData; |
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|
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public byte[] Compress() |
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{ |
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var compressed = new List<byte>(data.Length); |
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|
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for (int i = 0; i < data.Length;) |
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{ |
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byte type = data[i]; |
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int count = 1; |
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|
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while (count < 255 && i + count < data.Length && data[i + count] == type) |
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count++; |
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|
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if (count < 16) |
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{ |
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compressed.Add((byte)((count << 4) | type)); |
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} |
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else |
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{ |
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compressed.Add(type); |
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compressed.Add((byte)count); |
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} |
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|
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i += count; |
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} |
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|
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return compressed.ToArray(); |
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} |
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|
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public Surface ToImage() |
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{ |
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var image = new Surface(xTiles, zTiles, SurfaceFormat.BGRX); |
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|
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for (int z = 0; z < zTiles; z++) |
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{ |
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for (int x = 0; x < xTiles; x++) |
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image[x, z] = gridColors[data[z * xTiles + x]]; |
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} |
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|
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return image; |
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} |
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} |
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} |
