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