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