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