trurwsuieghfdskg

build/tmp/.cache/expanded/zip_720caf92d67d73a368ff2c0f2ebc194b/net/minecraft/BlockUtil.java

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+package net.minecraft;
+
+import com.google.common.annotations.VisibleForTesting;
+import com.mojang.datafixers.util.Pair;
+import it.unimi.dsi.fastutil.ints.IntArrayList;
+import it.unimi.dsi.fastutil.ints.IntStack;
+import java.util.Optional;
+import java.util.function.Predicate;
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.Direction;
+import net.minecraft.world.level.BlockGetter;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.state.BlockState;
+
+public class BlockUtil {
+   public static BlockUtil.FoundRectangle getLargestRectangleAround(BlockPos p_124335_, Direction.Axis p_124336_, int p_124337_, Direction.Axis p_124338_, int p_124339_, Predicate<BlockPos> p_124340_) {
+      BlockPos.MutableBlockPos blockpos$mutableblockpos = p_124335_.mutable();
+      Direction direction = Direction.get(Direction.AxisDirection.NEGATIVE, p_124336_);
+      Direction direction1 = direction.getOpposite();
+      Direction direction2 = Direction.get(Direction.AxisDirection.NEGATIVE, p_124338_);
+      Direction direction3 = direction2.getOpposite();
+      int i = getLimit(p_124340_, blockpos$mutableblockpos.set(p_124335_), direction, p_124337_);
+      int j = getLimit(p_124340_, blockpos$mutableblockpos.set(p_124335_), direction1, p_124337_);
+      int k = i;
+      BlockUtil.IntBounds[] ablockutil$intbounds = new BlockUtil.IntBounds[i + 1 + j];
+      ablockutil$intbounds[i] = new BlockUtil.IntBounds(getLimit(p_124340_, blockpos$mutableblockpos.set(p_124335_), direction2, p_124339_), getLimit(p_124340_, blockpos$mutableblockpos.set(p_124335_), direction3, p_124339_));
+      int l = ablockutil$intbounds[i].min;
+
+      for(int i1 = 1; i1 <= i; ++i1) {
+         BlockUtil.IntBounds blockutil$intbounds = ablockutil$intbounds[k - (i1 - 1)];
+         ablockutil$intbounds[k - i1] = new BlockUtil.IntBounds(getLimit(p_124340_, blockpos$mutableblockpos.set(p_124335_).move(direction, i1), direction2, blockutil$intbounds.min), getLimit(p_124340_, blockpos$mutableblockpos.set(p_124335_).move(direction, i1), direction3, blockutil$intbounds.max));
+      }
+
+      for(int l2 = 1; l2 <= j; ++l2) {
+         BlockUtil.IntBounds blockutil$intbounds2 = ablockutil$intbounds[k + l2 - 1];
+         ablockutil$intbounds[k + l2] = new BlockUtil.IntBounds(getLimit(p_124340_, blockpos$mutableblockpos.set(p_124335_).move(direction1, l2), direction2, blockutil$intbounds2.min), getLimit(p_124340_, blockpos$mutableblockpos.set(p_124335_).move(direction1, l2), direction3, blockutil$intbounds2.max));
+      }
+
+      int i3 = 0;
+      int j3 = 0;
+      int j1 = 0;
+      int k1 = 0;
+      int[] aint = new int[ablockutil$intbounds.length];
+
+      for(int l1 = l; l1 >= 0; --l1) {
+         for(int i2 = 0; i2 < ablockutil$intbounds.length; ++i2) {
+            BlockUtil.IntBounds blockutil$intbounds1 = ablockutil$intbounds[i2];
+            int j2 = l - blockutil$intbounds1.min;
+            int k2 = l + blockutil$intbounds1.max;
+            aint[i2] = l1 >= j2 && l1 <= k2 ? k2 + 1 - l1 : 0;
+         }
+
+         Pair<BlockUtil.IntBounds, Integer> pair = getMaxRectangleLocation(aint);
+         BlockUtil.IntBounds blockutil$intbounds3 = pair.getFirst();
+         int k3 = 1 + blockutil$intbounds3.max - blockutil$intbounds3.min;
+         int l3 = pair.getSecond();
+         if (k3 * l3 > j1 * k1) {
+            i3 = blockutil$intbounds3.min;
+            j3 = l1;
+            j1 = k3;
+            k1 = l3;
+         }
+      }
+
+      return new BlockUtil.FoundRectangle(p_124335_.relative(p_124336_, i3 - k).relative(p_124338_, j3 - l), j1, k1);
+   }
+
+   private static int getLimit(Predicate<BlockPos> p_124342_, BlockPos.MutableBlockPos p_124343_, Direction p_124344_, int p_124345_) {
+      int i;
+      for(i = 0; i < p_124345_ && p_124342_.test(p_124343_.move(p_124344_)); ++i) {
+      }
+
+      return i;
+   }
+
+   @VisibleForTesting
+   static Pair<BlockUtil.IntBounds, Integer> getMaxRectangleLocation(int[] p_124347_) {
+      int i = 0;
+      int j = 0;
+      int k = 0;
+      IntStack intstack = new IntArrayList();
+      intstack.push(0);
+
+      for(int l = 1; l <= p_124347_.length; ++l) {
+         int i1 = l == p_124347_.length ? 0 : p_124347_[l];
+
+         while(!intstack.isEmpty()) {
+            int j1 = p_124347_[intstack.topInt()];
+            if (i1 >= j1) {
+               intstack.push(l);
+               break;
+            }
+
+            intstack.popInt();
+            int k1 = intstack.isEmpty() ? 0 : intstack.topInt() + 1;
+            if (j1 * (l - k1) > k * (j - i)) {
+               j = l;
+               i = k1;
+               k = j1;
+            }
+         }
+
+         if (intstack.isEmpty()) {
+            intstack.push(l);
+         }
+      }
+
+      return new Pair<>(new BlockUtil.IntBounds(i, j - 1), k);
+   }
+
+   public static Optional<BlockPos> getTopConnectedBlock(BlockGetter p_177846_, BlockPos p_177847_, Block p_177848_, Direction p_177849_, Block p_177850_) {
+      BlockPos.MutableBlockPos blockpos$mutableblockpos = p_177847_.mutable();
+
+      BlockState blockstate;
+      do {
+         blockpos$mutableblockpos.move(p_177849_);
+         blockstate = p_177846_.getBlockState(blockpos$mutableblockpos);
+      } while(blockstate.is(p_177848_));
+
+      return blockstate.is(p_177850_) ? Optional.of(blockpos$mutableblockpos) : Optional.empty();
+   }
+
+   public static class FoundRectangle {
+      public final BlockPos minCorner;
+      public final int axis1Size;
+      public final int axis2Size;
+
+      public FoundRectangle(BlockPos p_124352_, int p_124353_, int p_124354_) {
+         this.minCorner = p_124352_;
+         this.axis1Size = p_124353_;
+         this.axis2Size = p_124354_;
+      }
+   }
+
+   public static class IntBounds {
+      public final int min;
+      public final int max;
+
+      public IntBounds(int p_124358_, int p_124359_) {
+         this.min = p_124358_;
+         this.max = p_124359_;
+      }
+
+      public String toString() {
+         return "IntBounds{min=" + this.min + ", max=" + this.max + "}";
+      }
+   }
+}