Automap/Renderers/AlternateRenderer.cs

   1 using System;
   2 using System.Linq;
   3
   4 using Hjg.Pngcs;
   5
   6 using Vintagestory.API.Client;
   7 using Vintagestory.API.Common;
   8 using Vintagestory.API.MathTools;
   9
  10 namespace Automap
  11 {
  12         public class AlternateRenderer : IChunkRenderer
  13         {
  14                 private readonly int chunkSize;
  15
  16
  17                 /// <summary>
  18                 /// V.G.D:'s Alternative renderer
  19                 /// </summary>
  20                 /// <param name="clientAPI">Client API.</param>
  21                 /// <param name="logger">Logger.</param>
  22                 public AlternateRenderer(ICoreClientAPI clientAPI, ILogger logger) : base(clientAPI, logger)
  23                 {
  24                         chunkSize = ClientAPI.World.BlockAccessor.ChunkSize;
  25                 }
  26
  27                 public override void GenerateChunkPngShard(Vec2i chunkPos, IMapChunk mc, ColumnMeta metaData, PngWriter pngWriter, out uint pixelCount)
  28                 {
  29                         pixelCount = 0;
  30                         BlockPos tmpPos = new BlockPos();
  31                         Vec2i localpos = new Vec2i();
  32                         var chunksColumn = new IWorldChunk[ClientAPI.World.BlockAccessor.MapSizeY / chunkSize];
  33
  34                         int topChunkY = mc.YMax / chunkSize;//Heywaitaminute -- this isn't a highest FEATURE, if Rainmap isn't accurate!
  35                                                                                                 //Metadata of DateTime chunk was edited, chunk coords.,world-seed? Y-Max feature height
  36                                                                                                 //Grab a chunk COLUMN... Topmost Y down...
  37                         for (int chunkY = 0; chunkY <= topChunkY; chunkY++)
  38                         {
  39                                 chunksColumn[chunkY] = ClientAPI.World.BlockAccessor.GetChunk(chunkPos.X, chunkY, chunkPos.Y);
  40                                 //What to do if chunk is a void? invalid?
  41                         }
  42
  43                         //pre-create PNG line slices...
  44                         ImageLine[] lines = Enumerable.Repeat(new object(), chunkSize).Select(l => new ImageLine(pngWriter.ImgInfo)).ToArray();
  45                         ushort[] allMapYs = mc.RainHeightMap;
  46                         for (int posIndex = 0; posIndex < (chunkSize * chunkSize); posIndex++)
  47                         {
  48                                 int currY = allMapYs[posIndex];
  49                                 int localChunkY = currY / chunkSize;
  50                                 if (localChunkY >= (chunksColumn.Length)) continue; //Out of range!
  51                                 if (chunksColumn[localChunkY] == null) continue;
  52
  53                                 MapUtil.PosInt2d(posIndex, chunkSize, localpos);
  54                                 int localX = localpos.X;
  55                                 int localZ = localpos.Y;
  56
  57                                 chunksColumn[localChunkY].Unpack();
  58                                 int blockId = chunksColumn[localChunkY].Blocks[MapUtil.Index3d(localX, currY % chunkSize, localZ, chunkSize, chunkSize)];
  59
  60                                 Block block = ClientAPI.World.Blocks[blockId];
  61
  62                                 tmpPos.Set(chunkSize * chunkPos.X + localX, currY, chunkSize * chunkPos.Y + localZ);
  63
  64                                 int red;
  65                                 int green;
  66                                 int blue;
  67
  68                                 //============ POI Population =================
  69                                 if (BlockID_Designators.ContainsKey(blockId))
  70                                 {
  71                                         var desig = BlockID_Designators[blockId];
  72                                         red = desig.OverwriteColor.R;
  73                                         green = desig.OverwriteColor.G;
  74                                         blue = desig.OverwriteColor.B;
  75
  76
  77                                         ImageLineHelper.SetPixel(lines[localZ], localX, red, green, blue);
  78                                         continue;
  79                                 }
  80
  81                                 float b = GetSlope(localX, localZ, allMapYs);
  82
  83                                 int col = block.GetColor(ClientAPI, tmpPos);
  84                                 int packedFormat = ColorUtil.ColorMultiply3Clamped(col, b);
  85
  86                                 red = ColorUtil.ColorB(packedFormat);
  87                                 green = ColorUtil.ColorG(packedFormat);
  88                                 blue = ColorUtil.ColorR(packedFormat);
  89                                 ImageLineHelper.SetPixel(lines[localZ], localX, red, green, blue);
  90
  91                                 //chunkImage.SetPixel(localX, localZ, pixelColor);
  92                                 pixelCount++;
  93                         }
  94
  95                         for (int row = 0; row < pngWriter.ImgInfo.Rows; row++)
  96                         {
  97                                 pngWriter.WriteRow(lines[row], row);
  98                         }
  99
 100                         pngWriter.End();
 101                 }
 102
 103                 private float GetSlope(int x, int y, ushort[] heightMap)
 104                 {
 105                         int baseY = heightMap[MapUtil.Index2d(x, y, chunkSize)];
 106                         float runningY = 0;
 107                         // check bounds. i hate this.
 108                         int locIndex;
 109                         if (x > 0)
 110                         {
 111                                 locIndex = MapUtil.Index2d(x - 1, y, chunkSize);
 112                                 runningY += (baseY - heightMap[locIndex]);
 113                         }
 114                         if (x < chunkSize - 1)
 115                         {
 116                                 locIndex = MapUtil.Index2d(x + 1, y, chunkSize);
 117                                 runningY += (baseY - heightMap[locIndex]);
 118                         }
 119                         if (y > 0)
 120                         {
 121                                 locIndex = MapUtil.Index2d(x, y - 1, chunkSize);
 122                                 runningY += (baseY - heightMap[locIndex]);
 123                         }
 124                         if (y < chunkSize - 1)
 125                         {
 126                                 locIndex = MapUtil.Index2d(x, y + 1, chunkSize);
 127                                 runningY += (baseY - heightMap[locIndex]);
 128                         }
 129                         runningY /= 4; // average now
 130                         runningY /= 5; // idk
 131                         return 1 + runningY;
 132                 }
 133         }
 134 }
 135