common/src/main/java/me/shedaniel/lightoverlay/common/LightOverlayTicker.java

   1 package me.shedaniel.lightoverlay.common;
   2
   3 import com.google.common.base.Suppliers;
   4 import com.google.common.collect.Maps;
   5 import it.unimi.dsi.fastutil.longs.Long2ByteMap;
   6 import it.unimi.dsi.fastutil.longs.Long2ByteOpenHashMap;
   7 import net.minecraft.client.Minecraft;
   8 import net.minecraft.client.multiplayer.ClientLevel;
   9 import net.minecraft.client.player.LocalPlayer;
  10 import net.minecraft.core.BlockPos;
  11 import net.minecraft.core.Direction;
  12 import net.minecraft.tags.BlockTags;
  13 import net.minecraft.util.Mth;
  14 import net.minecraft.world.entity.Entity;
  15 import net.minecraft.world.entity.EntityType;
  16 import net.minecraft.world.entity.MobCategory;
  17 import net.minecraft.world.level.BlockGetter;
  18 import net.minecraft.world.level.Level;
  19 import net.minecraft.world.level.LightLayer;
  20 import net.minecraft.world.level.biome.Biome;
  21 import net.minecraft.world.level.block.Block;
  22 import net.minecraft.world.level.block.state.BlockState;
  23 import net.minecraft.world.level.chunk.ChunkStatus;
  24 import net.minecraft.world.level.chunk.LevelChunk;
  25 import net.minecraft.world.level.lighting.LayerLightEventListener;
  26 import net.minecraft.world.phys.shapes.CollisionContext;
  27 import net.minecraft.world.phys.shapes.VoxelShape;
  28 import org.apache.logging.log4j.LogManager;
  29
  30 import java.util.*;
  31 import java.util.concurrent.Executors;
  32 import java.util.concurrent.ThreadPoolExecutor;
  33 import java.util.function.Supplier;
  34
  35 public class LightOverlayTicker {
  36     private final Minecraft minecraft = Minecraft.getInstance();
  37     private long ticks = 0;
  38     private static int threadNumber = 0;
  39     private static final ThreadPoolExecutor EXECUTOR = (ThreadPoolExecutor) Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors(), r -> {
  40         Thread thread = new Thread(r, "light-overlay-" + threadNumber++);
  41         thread.setDaemon(true);
  42         return thread;
  43     });
  44     public final Set<CubicChunkPos> POS = Collections.synchronizedSet(new HashSet<>());
  45     public final Set<CubicChunkPos> CALCULATING_POS = Collections.synchronizedSet(new HashSet<>());
  46     public final Map<CubicChunkPos, Long2ByteMap> CHUNK_MAP = Maps.newConcurrentMap();
  47     private static final Supplier<EntityType<Entity>> TESTING_ENTITY_TYPE = Suppliers.memoize(() ->
  48             EntityType.Builder.createNothing(MobCategory.MONSTER).sized(0f, 0f).noSave().build(null));
  49
  50     public void queueChunk(CubicChunkPos pos) {
  51         if (LightOverlay.enabled && LightOverlay.caching && !CALCULATING_POS.contains(pos)) {
  52             POS.add(pos);
  53         }
  54     }
  55
  56     public void tick(Minecraft minecraft) {
  57         while (LightOverlay.enableOverlay.consumeClick())
  58             LightOverlay.enabled = !LightOverlay.enabled;
  59
  60         try {
  61             ticks++;
  62             if (minecraft.player == null || !LightOverlay.enabled) {
  63                 POS.clear();
  64                 CALCULATING_POS.clear();
  65                 EXECUTOR.getQueue().clear();
  66                 CHUNK_MAP.clear();
  67             } else {
  68                 LocalPlayer player = minecraft.player;
  69                 ClientLevel world = minecraft.level;
  70                 CollisionContext collisionContext = CollisionContext.of(player);
  71
  72                 if (!LightOverlay.caching) {
  73                     CALCULATING_POS.clear();
  74                     POS.clear();
  75                     CHUNK_MAP.clear();
  76                     BlockPos playerPos = player.blockPosition();
  77                     LayerLightEventListener block = world.getLightEngine().getLayerListener(LightLayer.BLOCK);
  78                     LayerLightEventListener sky = LightOverlay.showNumber ? null : world.getLightEngine().getLayerListener(LightLayer.SKY);
  79                     BlockPos.MutableBlockPos downPos = new BlockPos.MutableBlockPos();
  80                     Iterable<BlockPos> iterate = BlockPos.betweenClosed(playerPos.getX() - LightOverlay.reach, playerPos.getY() - LightOverlay.reach, playerPos.getZ() - LightOverlay.reach,
  81                             playerPos.getX() + LightOverlay.reach, playerPos.getY() + LightOverlay.reach, playerPos.getZ() + LightOverlay.reach);
  82                     Long2ByteMap chunkData = new Long2ByteOpenHashMap();
  83                     CHUNK_MAP.put(new CubicChunkPos(0, 0, 0), chunkData);
  84                     for (BlockPos blockPos : iterate) {
  85                         downPos.set(blockPos.getX(), blockPos.getY() - 1, blockPos.getZ());
  86                         if (LightOverlay.showNumber) {
  87                             int level = getCrossLevel(blockPos, downPos, world, block, collisionContext);
  88                             if (level >= 0) {
  89                                 chunkData.put(blockPos.asLong(), (byte) level);
  90                             }
  91                         } else {
  92                             Biome biome = !LightOverlay.mushroom ? world.getBiome(blockPos) : null;
  93                             byte type = getCrossType(blockPos, biome, downPos, world, block, sky, collisionContext);
  94                             if (type != LightOverlay.CROSS_NONE) {
  95                                 chunkData.put(blockPos.asLong(), type);
  96                             }
  97                         }
  98                     }
  99                 } else {
 100                     var height = Mth.ceil(Minecraft.getInstance().level.getHeight() / 32.0);
 101                     var start = Math.floorDiv(Minecraft.getInstance().level.getMinBuildHeight(), 32);
 102                     int playerPosX = ((int) player.getX()) >> 4;
 103                     int playerPosY = ((int) player.getY()) >> 5;
 104                     int playerPosZ = ((int) player.getZ()) >> 4;
 105                     var chunkRange = LightOverlay.getChunkRange();
 106                     for (int chunkX = playerPosX - chunkRange; chunkX <= playerPosX + chunkRange; chunkX++) {
 107                         for (int chunkY = Math.max(playerPosY - Math.max(1, chunkRange >> 1), start); chunkY <= playerPosY + Math.max(1, chunkRange >> 1) && chunkY <= start + height; chunkY++) {
 108                             for (int chunkZ = playerPosZ - chunkRange; chunkZ <= playerPosZ + chunkRange; chunkZ++) {
 109                                 if (Mth.abs(chunkX - playerPosX) > chunkRange || Mth.abs(chunkY - playerPosY) > chunkRange || Mth.abs(chunkZ - playerPosZ) > chunkRange)
 110                                     continue;
 111                                 CubicChunkPos chunkPos = new CubicChunkPos(chunkX, chunkY, chunkZ);
 112                                 if (!CHUNK_MAP.containsKey(chunkPos))
 113                                     queueChunk(chunkPos);
 114                             }
 115                         }
 116                     }
 117                     for (int p = 0; p < 3; p++) {
 118                         if (EXECUTOR.getQueue().size() >= Runtime.getRuntime().availableProcessors()) break;
 119                         double d1 = Double.MAX_VALUE, d2 = Double.MAX_VALUE, d3 = Double.MAX_VALUE;
 120                         CubicChunkPos c1 = null, c2 = null, c3 = null;
 121                         synchronized (POS) {
 122                             Iterator<CubicChunkPos> iterator = POS.iterator();
 123                             while (iterator.hasNext()) {
 124                                 CubicChunkPos pos = iterator.next();
 125                                 if (Mth.abs(pos.x - playerPosX) > chunkRange || Mth.abs(pos.y - playerPosY) > Math.max(1, chunkRange >> 1) || Mth.abs(pos.z - playerPosZ) > chunkRange || CALCULATING_POS.contains(pos)) {
 126                                     iterator.remove();
 127                                 } else {
 128                                     if (LightOverlay.renderer.isFrustumVisible(pos.getMinBlockX(), pos.getMinBlockY(), pos.getMinBlockZ(), pos.getMaxBlockX(), pos.getMaxBlockY(), pos.getMaxBlockZ())) {
 129                                         int dx = Math.abs(pos.x - playerPosX);
 130                                         int dy = Math.abs(pos.y - playerPosY) << 1;
 131                                         int dz = Math.abs(pos.z - playerPosZ);
 132                                         double distance = Math.sqrt(dx * dx + dy * dy + dz * dz);
 133                                         if (distance < d1) {
 134                                             d3 = d2;
 135                                             d2 = d1;
 136                                             d1 = distance;
 137                                             c3 = c2;
 138                                             c2 = c1;
 139                                             c1 = pos;
 140                                         } else if (distance < d2) {
 141                                             d3 = d2;
 142                                             d2 = distance;
 143                                             c3 = c2;
 144                                             c2 = pos;
 145                                         } else if (distance < d3) {
 146                                             d3 = distance;
 147                                             c3 = pos;
 148                                         }
 149                                     }
 150                                 }
 151                             }
 152                         }
 153                         CubicChunkPos finalC1 = c1;
 154                         CubicChunkPos finalC2 = c2;
 155                         CubicChunkPos finalC3 = c3;
 156                         if (finalC1 != null) {
 157                             CALCULATING_POS.add(finalC1);
 158                             POS.remove(finalC1);
 159                             if (finalC2 != null) {
 160                                 CALCULATING_POS.add(finalC2);
 161                                 POS.remove(finalC2);
 162                                 if (finalC3 != null) {
 163                                     CALCULATING_POS.add(finalC3);
 164                                     POS.remove(finalC3);
 165                                 }
 166                             }
 167                             EXECUTOR.submit(() -> {
 168                                 int playerPosX1 = ((int) minecraft.player.getX()) >> 4;
 169                                 int playerPosY1 = ((int) minecraft.player.getY()) >> 5;
 170                                 int playerPosZ1 = ((int) minecraft.player.getZ()) >> 4;
 171                                 if (finalC1 != null) processChunk(finalC1, playerPosX1, playerPosY1, playerPosZ1, collisionContext);
 172                                 if (finalC2 != null) processChunk(finalC2, playerPosX1, playerPosY1, playerPosZ1, collisionContext);
 173                                 if (finalC3 != null) processChunk(finalC3, playerPosX1, playerPosY1, playerPosZ1, collisionContext);
 174                             });
 175                         }
 176                     }
 177                     if (ticks % 50 == 0) {
 178                         CHUNK_MAP.entrySet().removeIf(entry -> Mth.abs(entry.getKey().x - playerPosX) > chunkRange * 2 || Mth.abs(entry.getKey().y - playerPosY) > chunkRange * 2 || Mth.abs(entry.getKey().z - playerPosZ) > chunkRange * 2);
 179                     }
 180                 }
 181             }
 182         } catch (Throwable throwable) {
 183             LogManager.getLogger().throwing(throwable);
 184         }
 185     }
 186
 187     private void processChunk(CubicChunkPos pos, int playerPosX, int playerPosY, int playerPosZ, CollisionContext context) {
 188         CALCULATING_POS.remove(pos);
 189         int chunkRange = LightOverlay.getChunkRange();
 190         if (Mth.abs(pos.x - playerPosX) > chunkRange || Mth.abs(pos.y - playerPosY) > Math.max(1, chunkRange >> 1) || Mth.abs(pos.z - playerPosZ) > chunkRange || POS.contains(pos)) {
 191             return;
 192         }
 193         try {
 194             calculateChunk(minecraft.level.getChunkSource().getChunk(pos.x, pos.z, ChunkStatus.FULL, false), minecraft.level, pos, context);
 195         } catch (Throwable throwable) {
 196             LogManager.getLogger().throwing(throwable);
 197         }
 198     }
 199
 200     private void calculateChunk(LevelChunk chunk, Level world, CubicChunkPos chunkPos, CollisionContext collisionContext) {
 201         if (world != null && chunk != null) {
 202             Long2ByteMap chunkData = new Long2ByteOpenHashMap();
 203             LayerLightEventListener block = world.getLightEngine().getLayerListener(LightLayer.BLOCK);
 204             LayerLightEventListener sky = LightOverlay.showNumber ? null : world.getLightEngine().getLayerListener(LightLayer.SKY);
 205             for (BlockPos pos : BlockPos.betweenClosed(chunkPos.getMinBlockX(), chunkPos.getMinBlockY(), chunkPos.getMinBlockZ(), chunkPos.getMaxBlockX(), chunkPos.getMaxBlockY(), chunkPos.getMaxBlockZ())) {
 206                 BlockPos down = pos.below();
 207                 if (LightOverlay.showNumber) {
 208                     int level = getCrossLevel(pos, down, chunk, block, collisionContext);
 209                     if (level >= 0) {
 210                         chunkData.put(pos.asLong(), (byte) level);
 211                     }
 212                 } else {
 213                     Biome biome = !LightOverlay.mushroom ? world.getBiome(pos) : null;
 214                     byte type = getCrossType(pos, biome, down, chunk, block, sky, collisionContext);
 215                     if (type != LightOverlay.CROSS_NONE) {
 216                         chunkData.put(pos.asLong(), type);
 217                     }
 218                 }
 219             }
 220             CHUNK_MAP.put(chunkPos, chunkData);
 221         } else {
 222             CHUNK_MAP.remove(chunkPos);
 223         }
 224     }
 225
 226     public byte getCrossType(BlockPos pos, Biome biome, BlockPos down, BlockGetter world, LayerLightEventListener block, LayerLightEventListener sky, CollisionContext entityContext) {
 227         BlockState blockBelowState = world.getBlockState(down);
 228         BlockState blockUpperState = world.getBlockState(pos);
 229         VoxelShape upperCollisionShape = blockUpperState.getCollisionShape(world, pos, entityContext);
 230         if (!LightOverlay.underwater && !blockUpperState.getFluidState().isEmpty())
 231             return LightOverlay.CROSS_NONE;
 232         // Check if the outline is full
 233         if (Block.isFaceFull(upperCollisionShape, Direction.UP))
 234             return LightOverlay.CROSS_NONE;
 235         // TODO: Not to hard code no redstone
 236         if (blockUpperState.isSignalSource())
 237             return LightOverlay.CROSS_NONE;
 238         // Check if the collision has a bump
 239         if (upperCollisionShape.max(Direction.Axis.Y) > 0)
 240             return LightOverlay.CROSS_NONE;
 241         if (blockUpperState.is(BlockTags.RAILS))
 242             return LightOverlay.CROSS_NONE;
 243         // Check block state allow spawning (excludes bedrock and barriers automatically)
 244         if (!blockBelowState.isValidSpawn(world, down, TESTING_ENTITY_TYPE.get()))
 245             return LightOverlay.CROSS_NONE;
 246         if (!LightOverlay.mushroom && Biome.BiomeCategory.MUSHROOM == biome.getBiomeCategory())
 247             return LightOverlay.CROSS_NONE;
 248         int blockLightLevel = block.getLightValue(pos);
 249         int skyLightLevel = sky.getLightValue(pos);
 250         if (blockLightLevel > LightOverlay.higherCrossLevel)
 251             return LightOverlay.CROSS_NONE;
 252         if (skyLightLevel > LightOverlay.higherCrossLevel)
 253             return LightOverlay.higherCross;
 254         return LightOverlay.lowerCrossLevel >= 0 && blockLightLevel > LightOverlay.lowerCrossLevel ?
 255                 LightOverlay.lowerCross : LightOverlay.CROSS_RED;
 256     }
 257
 258     public static int getCrossLevel(BlockPos pos, BlockPos down, BlockGetter world, LayerLightEventListener view, CollisionContext collisionContext) {
 259         BlockState blockBelowState = world.getBlockState(down);
 260         BlockState blockUpperState = world.getBlockState(pos);
 261         VoxelShape collisionShape = blockBelowState.getCollisionShape(world, down, collisionContext);
 262         VoxelShape upperCollisionShape = blockUpperState.getCollisionShape(world, pos, collisionContext);
 263         if (!LightOverlay.underwater && !blockUpperState.getFluidState().isEmpty())
 264             return -1;
 265         if (!blockBelowState.getFluidState().isEmpty())
 266             return -1;
 267         if (blockBelowState.isAir())
 268             return -1;
 269         if (Block.isFaceFull(upperCollisionShape, Direction.DOWN))
 270             return -1;
 271         return view.getLightValue(pos);
 272     }
 273 }