net.minecraft.server.ItemWorldMap Maven / Gradle / Ivy

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package net.minecraft.server;

import com.google.common.collect.HashMultiset;
import com.google.common.collect.Iterables;
import com.google.common.collect.Multisets;
import org.bukkit.Bukkit;
import org.bukkit.event.server.MapInitializeEvent;
// CraftBukkit end

public class ItemWorldMap extends ItemWorldMapBase {

  protected ItemWorldMap() {
    this.a(true);
  }

  public WorldMap getSavedMap(ItemStack itemstack, World world) {
    World worldMain = world.getServer().getServer().worlds.get(0); // CraftBukkit - store reference to primary world
    String s = "map_" + itemstack.getData();
    WorldMap worldmap = (WorldMap) worldMain.a(WorldMap.class, s); // CraftBukkit - use primary world for maps

    if (worldmap == null && !world.isClientSide) {
      itemstack.setData(worldMain.b("map")); // CraftBukkit - use primary world for maps
      s = "map_" + itemstack.getData();
      worldmap = new WorldMap(s);
      worldmap.scale = 3;
      worldmap.a(world.getWorldData().c(), world.getWorldData().e(), worldmap.scale);
      worldmap.map = (byte) ((WorldServer) world).dimension; // CraftBukkit - fixes Bukkit multiworld maps
      worldmap.c();
      worldMain.a(s, worldmap); // CraftBukkit - use primary world for maps

      // CraftBukkit start
      MapInitializeEvent event = new MapInitializeEvent(worldmap.mapView);
      Bukkit.getServer().getPluginManager().callEvent(event);
      // CraftBukkit end
    }

    return worldmap;
  }

  public void a(World world, Entity entity, WorldMap worldmap) {
    // CraftBukkit - world.worldProvider -> ((WorldServer) world)
    if (((WorldServer) world).dimension == worldmap.map && entity instanceof EntityHuman) {
      int i = 1 << worldmap.scale;
      int j = worldmap.centerX;
      int k = worldmap.centerZ;
      int l = MathHelper.floor(entity.locX - (double) j) / i + 64;
      int i1 = MathHelper.floor(entity.locZ - (double) k) / i + 64;
      int j1 = 128 / i;

      if (world.worldProvider.o()) {
        j1 /= 2;
      }

      WorldMap.WorldMapHumanTracker worldmap_worldmaphumantracker = worldmap.a((EntityHuman) entity);

      ++worldmap_worldmaphumantracker.b;
      boolean flag = false;

      for (int k1 = l - j1 + 1; k1 < l + j1; ++k1) {
        if ((k1 & 15) == (worldmap_worldmaphumantracker.b & 15) || flag) {
          flag = false;
          double d0 = 0.0D;

          for (int l1 = i1 - j1 - 1; l1 < i1 + j1; ++l1) {
            if (k1 >= 0 && l1 >= -1 && k1 < 128 && l1 < 128) {
              int i2 = k1 - l;
              int j2 = l1 - i1;
              boolean flag1 = i2 * i2 + j2 * j2 > (j1 - 2) * (j1 - 2);
              int k2 = (j / i + k1 - 64) * i;
              int l2 = (k / i + l1 - 64) * i;
              HashMultiset hashmultiset = HashMultiset.create();
              Chunk chunk = world.getChunkAtWorldCoords(new BlockPosition(k2, 0, l2));

              if (!chunk.isEmpty()) {
                int i3 = k2 & 15;
                int j3 = l2 & 15;
                int k3 = 0;
                double d1 = 0.0D;

                if (world.worldProvider.o()) {
                  int l3 = k2 + l2 * 231871;

                  l3 = l3 * l3 * 31287121 + l3 * 11;
                  if ((l3 >> 20 & 1) == 0) {
                    hashmultiset.add(Blocks.DIRT.g(Blocks.DIRT.getBlockData().set(BlockDirt.VARIANT, BlockDirt.EnumDirtVariant.DIRT)), 10);
                  } else {
                    hashmultiset.add(Blocks.STONE.g(Blocks.STONE.getBlockData().set(BlockStone.VARIANT, BlockStone.EnumStoneVariant.STONE)), 100);
                  }

                  d1 = 100.0D;
                } else {
                  BlockPosition.MutableBlockPosition blockposition_mutableblockposition = new BlockPosition.MutableBlockPosition();

                  for (int i4 = 0; i4 < i; ++i4) {
                    for (int j4 = 0; j4 < i; ++j4) {
                      int k4 = chunk.b(i4 + i3, j4 + j3) + 1;
                      IBlockData iblockdata = Blocks.AIR.getBlockData();

                      if (k4 > 1) {
                        do {
                          --k4;
                          iblockdata = chunk.getBlockData(blockposition_mutableblockposition.c(i4 + i3, k4, j4 + j3));
                        } while (iblockdata.getBlock().g(iblockdata) == MaterialMapColor.b && k4 > 0);

                        if (k4 > 0 && iblockdata.getBlock().getMaterial().isLiquid()) {
                          int l4 = k4 - 1;

                          Block block;

                          do {
                            block = chunk.getTypeAbs(i4 + i3, l4--, j4 + j3);
                            ++k3;
                          } while (l4 > 0 && block.getMaterial().isLiquid());
                        }
                      }

                      d1 += (double) k4 / (double) (i * i);
                      hashmultiset.add(iblockdata.getBlock().g(iblockdata));
                    }
                  }
                }

                k3 /= i * i;
                double d2 = (d1 - d0) * 4.0D / (double) (i + 4) + ((double) (k1 + l1 & 1) - 0.5D) * 0.4D;
                byte b0 = 1;

                if (d2 > 0.6D) {
                  b0 = 2;
                }

                if (d2 < -0.6D) {
                  b0 = 0;
                }

                MaterialMapColor materialmapcolor = Iterables.getFirst(Multisets.copyHighestCountFirst(hashmultiset), MaterialMapColor.b);

                if (materialmapcolor == MaterialMapColor.n) {
                  d2 = (double) k3 * 0.1D + (double) (k1 + l1 & 1) * 0.2D;
                  b0 = 1;
                  if (d2 < 0.5D) {
                    b0 = 2;
                  }

                  if (d2 > 0.9D) {
                    b0 = 0;
                  }
                }

                d0 = d1;
                if (l1 >= 0 && i2 * i2 + j2 * j2 < j1 * j1 && (!flag1 || (k1 + l1 & 1) != 0)) {
                  byte b1 = worldmap.colors[k1 + l1 * 128];
                  byte b2 = (byte) (materialmapcolor.M * 4 + b0);

                  if (b1 != b2) {
                    worldmap.colors[k1 + l1 * 128] = b2;
                    worldmap.flagDirty(k1, l1);
                    flag = true;
                  }
                }
              }
            }
          }
        }
      }

    }
  }

  public void a(ItemStack itemstack, World world, Entity entity, int i, boolean flag) {
    if (!world.isClientSide) {
      WorldMap worldmap = this.getSavedMap(itemstack, world);

      if (entity instanceof EntityHuman) {
        EntityHuman entityhuman = (EntityHuman) entity;

        worldmap.a(entityhuman, itemstack);
      }

      if (flag) {
        this.a(world, entity, worldmap);
      }

    }
  }

  public Packet c(ItemStack itemstack, World world, EntityHuman entityhuman) {
    return this.getSavedMap(itemstack, world).a(itemstack, world, entityhuman);
  }

  public void d(ItemStack itemstack, World world, EntityHuman entityhuman) {
    if (itemstack.hasTag() && itemstack.getTag().getBoolean("map_is_scaling")) {
      WorldMap worldmap = Items.FILLED_MAP.getSavedMap(itemstack, world);

      world = world.getServer().getServer().worlds.get(0); // CraftBukkit - use primary world for maps

      itemstack.setData(world.b("map"));
      WorldMap worldmap1 = new WorldMap("map_" + itemstack.getData());

      worldmap1.scale = (byte) (worldmap.scale + 1);
      if (worldmap1.scale > 4) {
        worldmap1.scale = 4;
      }

      worldmap1.a(worldmap.centerX, worldmap.centerZ, worldmap1.scale);
      worldmap1.map = worldmap.map;
      worldmap1.c();
      world.a("map_" + itemstack.getData(), worldmap1);

      // CraftBukkit start
      MapInitializeEvent event = new MapInitializeEvent(worldmap1.mapView);
      Bukkit.getServer().getPluginManager().callEvent(event);
      // CraftBukkit end
    }

  }
}