src/main/java/com/irtimaled/bbor/client/providers/BiomeBorderProvider.java

   1 package com.irtimaled.bbor.client.providers;
   2
   3 import com.irtimaled.bbor.client.Player;
   4 import com.irtimaled.bbor.client.config.BoundingBoxTypeHelper;
   5 import com.irtimaled.bbor.client.config.ConfigManager;
   6 import com.irtimaled.bbor.client.interop.BiomeBorderHelper;
   7 import com.irtimaled.bbor.client.models.BoundingBoxBiomeBorder;
   8 import com.irtimaled.bbor.common.BoundingBoxType;
   9 import com.irtimaled.bbor.common.MathHelper;
  10 import com.irtimaled.bbor.common.models.Coords;
  11 import com.irtimaled.bbor.common.models.DimensionId;
  12
  13 import java.util.HashMap;
  14 import java.util.Map;
  15
  16 public class BiomeBorderProvider implements IBoundingBoxProvider<BoundingBoxBiomeBorder> {
  17     private static Coords lastPlayerCoords = null;
  18     private static Boolean lastRenderAllTransitions = null;
  19     private static Integer lastRenderDistance = null;
  20     private static Integer lastMaxY = null;
  21     private static Map<Coords, BoundingBoxBiomeBorder> lastBorders = new HashMap<>();
  22
  23     @Override
  24     public boolean canProvide(DimensionId dimensionId) {
  25         return BoundingBoxTypeHelper.shouldRender(BoundingBoxType.BiomeBorder);
  26     }
  27
  28     @Override
  29     public Iterable<BoundingBoxBiomeBorder> get(DimensionId dimensionId) {
  30         Coords playerCoords = Player.getCoords();
  31         Integer renderDistance = ConfigManager.biomeBordersRenderDistance.get();
  32         Boolean renderAllTransitions = !ConfigManager.renderOnlyCurrentBiome.get();
  33         Integer maxY = (int) Player.getMaxY(ConfigManager.biomeBordersMaxY.get());
  34         if (!playerCoords.equals(lastPlayerCoords) ||
  35                 !renderDistance.equals(lastRenderDistance) ||
  36                 renderAllTransitions != lastRenderAllTransitions ||
  37                 !maxY.equals(lastMaxY)) {
  38             lastPlayerCoords = playerCoords;
  39             lastRenderDistance = renderDistance;
  40             lastRenderAllTransitions = renderAllTransitions;
  41             lastMaxY = maxY;
  42             lastBorders = getBiomeBorders();
  43         }
  44         return lastBorders.values();
  45     }
  46
  47     public static void clear() {
  48         lastBorders = new HashMap<>();
  49         lastPlayerCoords = null;
  50     }
  51
  52     private Map<Coords, BoundingBoxBiomeBorder> getBiomeBorders() {
  53         int renderDistance = lastRenderDistance;
  54         Coords playerCoords = lastPlayerCoords;
  55         boolean renderAllTransitions = lastRenderAllTransitions;
  56         int maxY = lastMaxY;
  57
  58         int width = MathHelper.floor(Math.pow(2, 3 + renderDistance));
  59
  60         int blockX = playerCoords.getX();
  61         int minX = blockX - width;
  62         int maxX = blockX + width;
  63
  64         int blockZ = playerCoords.getZ();
  65         int minZ = blockZ - width;
  66         int maxZ = blockZ + width;
  67
  68         int size = (width * 2) + 1;
  69         int[][] biomeIds = new int[size][size];
  70         for (int x = minX; x <= maxX; x++) {
  71             int matchX = (x - minX);
  72             for (int z = minZ; z <= maxZ; z++) {
  73                 int matchZ = (z - minZ);
  74                 biomeIds[matchX][matchZ] = BiomeBorderHelper.getBiomeId(x, maxY, z);
  75             }
  76         }
  77
  78         int playerBiomeId = BiomeBorderHelper.getBiomeId(playerCoords);
  79
  80         Map<Coords, BoundingBoxBiomeBorder> borders = new HashMap<>();
  81         for (int matchX = 1; matchX < size - 2; matchX++) {
  82             for (int matchZ = 1; matchZ < size - 2; matchZ++) {
  83                 int x = matchX + minX;
  84                 int z = matchZ + minZ;
  85                 int biomeId = biomeIds[matchX][matchZ];
  86                 if (renderAllTransitions || biomeId == playerBiomeId) {
  87                     Coords coords = new Coords(x, maxY, z);
  88                     if (lastBorders.containsKey(coords)) {
  89                         borders.put(coords, lastBorders.get(coords));
  90                     } else {
  91                         boolean north = biomeIds[matchX][matchZ - 1] != biomeId;
  92                         boolean east = biomeIds[matchX + 1][matchZ] != biomeId;
  93                         boolean south = biomeIds[matchX][matchZ + 1] != biomeId;
  94                         boolean west = biomeIds[matchX - 1][matchZ] != biomeId;
  95                         if (north || east || south || west) {
  96                             borders.put(coords, new BoundingBoxBiomeBorder(coords, north, east, south, west));
  97                         }
  98                     }
  99                 }
 100             }
 101         }
 102         return borders;
 103     }
 104 }