src/main/java/com/irtimaled/bbor/client/interop/SpawningSphereHelper.java

   1 package com.irtimaled.bbor.client.interop;
   2
   3 import com.irtimaled.bbor.client.models.Point;
   4 import com.irtimaled.bbor.common.models.BoundingBoxSpawningSphere;
   5 import com.irtimaled.bbor.common.models.Coords;
   6 import net.minecraft.block.Block;
   7 import net.minecraft.block.state.IBlockState;
   8 import net.minecraft.client.Minecraft;
   9 import net.minecraft.client.multiplayer.WorldClient;
  10 import net.minecraft.entity.EnumCreatureType;
  11 import net.minecraft.init.Blocks;
  12 import net.minecraft.tags.BlockTags;
  13 import net.minecraft.util.EnumFacing;
  14 import net.minecraft.util.math.BlockPos;
  15 import net.minecraft.world.EnumLightType;
  16 import net.minecraft.world.biome.Biome;
  17
  18 public class SpawningSphereHelper {
  19     public static int findSpawnableSpaces(Point center, Coords coords, int width, int height, BlockProcessor blockProcessor) {
  20         int blockX = coords.getX();
  21         int minX = blockX - width;
  22         int maxX = blockX + width;
  23
  24         int blockZ = coords.getZ();
  25         int minZ = blockZ - width;
  26         int maxZ = blockZ + width;
  27
  28         int blockY = coords.getY();
  29         int minY = blockY - height;
  30         if (minY < 1) minY = 1;
  31         int maxY = blockY + height;
  32         if (maxY > 255) maxY = 255;
  33
  34         int processed = 0;
  35         for (int x = minX; x < maxX; x++) {
  36             for (int z = minZ; z < maxZ; z++) {
  37                 for (int y = minY; y < maxY; y++) {
  38                     if (isWithinSpawnSphere(x, y, z, center) && isSpawnable(x, y, z) && blockProcessor.process(x, y, z)) {
  39                         processed++;
  40                     }
  41                 }
  42             }
  43         }
  44         return processed;
  45     }
  46
  47     private static boolean isWithinSpawnSphere(int x, int y, int z, Point center) {
  48         int x1 = x+1;
  49         int z1 = z+1;
  50         int y1 = y+1;
  51         int closestX = Math.abs(center.getX()-x) < Math.abs(center.getX()-x1) ? x : x1;
  52         int closestY = Math.abs(center.getY()-y) < Math.abs(center.getY()-y1) ? y : y1;
  53         int closestZ = Math.abs(center.getZ()-z) < Math.abs(center.getZ()-z1) ? z : z1;
  54         double distance = center.getDistance(new Point(closestX, closestY, closestZ));
  55         return distance <= BoundingBoxSpawningSphere.SPAWN_RADIUS && distance >= (BoundingBoxSpawningSphere.SAFE_RADIUS-1);
  56     }
  57
  58     private static boolean isSpawnable(int x, int y, int z) {
  59         WorldClient world = Minecraft.getInstance().world;
  60         BlockPos pos = new BlockPos(x, y, z);
  61         Biome biome = world.getBiome(pos);
  62         return  biome.getSpawningChance() > 0 &&
  63                 !biome.getSpawns(EnumCreatureType.MONSTER).isEmpty() &&
  64                 isSpawnable(pos, world);
  65     }
  66
  67     private static boolean isSpawnable(BlockPos pos, WorldClient world) {
  68         IBlockState spawnBlockState = world.getBlockState(pos.down());
  69         Block spawnBlock = spawnBlockState.getBlock();
  70         IBlockState upperBlockState = world.getBlockState(pos);
  71
  72         return spawnBlock != Blocks.AIR &&
  73                 spawnBlock != Blocks.BEDROCK &&
  74                 spawnBlock != Blocks.BARRIER &&
  75                 spawnBlockState.isTopSolid() &&
  76                 !upperBlockState.isBlockNormalCube() &&
  77                 !upperBlockState.canProvidePower() &&
  78                 !upperBlockState.isIn(BlockTags.RAILS) &&
  79                 upperBlockState.getCollisionShape(world, pos).getEnd(EnumFacing.Axis.Y) <= 0 &&
  80                 upperBlockState.getFluidState().isEmpty() &&
  81                 (world.dimension.isNether() || world.getLightFor(EnumLightType.BLOCK, pos) <= 7);
  82     }
  83 }