Package net.minecraft.world

Class BlockLocating

java.lang.Object
net.minecraft.world.BlockLocating
public class BlockLocating extends Object
A few utilities to find block positions matching certain conditions.
Mappings:
Namespace Name
official n
intermediary net/minecraft/class_5459
named net/minecraft/world/BlockLocating

  • Constructor Details

    • BlockLocating

      public BlockLocating()

  • Method Details

    • getLargestRectangle

      public static BlockLocating.Rectangle getLargestRectangle(BlockPos center, Direction.Axis primaryAxis, int primaryMaxBlocks, Direction.Axis secondaryAxis, int secondaryMaxBlocks, Predicate<BlockPos> predicate)
      Gets the largest rectangle of blocks along two axes for which all blocks meet a predicate. Used for getting rectangles of Nether portal blocks.
      Mappings:
      Namespace Name Mixin selector
      official a Ln;a(Lgj;Lgo$a;ILgo$a;ILjava/util/function/Predicate;)Ln$a;
      intermediary method_30574 Lnet/minecraft/class_5459;method_30574(Lnet/minecraft/class_2338;Lnet/minecraft/class_2350$class_2351;ILnet/minecraft/class_2350$class_2351;ILjava/util/function/Predicate;)Lnet/minecraft/class_5459$class_5460;
      named getLargestRectangle Lnet/minecraft/world/BlockLocating;getLargestRectangle(Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/math/Direction$Axis;ILnet/minecraft/util/math/Direction$Axis;ILjava/util/function/Predicate;)Lnet/minecraft/world/BlockLocating$Rectangle;

    • moveWhile

      private static int moveWhile(Predicate<BlockPos> predicate, BlockPos.Mutable pos, Direction direction, int max)
      Mappings:
      Namespace Name Mixin selector
      official a Ln;a(Ljava/util/function/Predicate;Lgj$a;Lgo;I)I
      intermediary method_30575 Lnet/minecraft/class_5459;method_30575(Ljava/util/function/Predicate;Lnet/minecraft/class_2338$class_2339;Lnet/minecraft/class_2350;I)I
      named moveWhile Lnet/minecraft/world/BlockLocating;moveWhile(Ljava/util/function/Predicate;Lnet/minecraft/util/math/BlockPos$Mutable;Lnet/minecraft/util/math/Direction;I)I

    • findLargestRectangle

      static com.mojang.datafixers.util.Pair<BlockLocating.IntBounds,Integer> findLargestRectangle(int[] heights)
      Finds the largest rectangle within a histogram, where the vertical bars each have width 1 and height specified in heights.
      Parameters:
      heights - the heights of bars in the histogram
      Returns:
      the base of the rectangle as an inclusive range and the height of the rectangle packed in a pair
      See Also:
      Implementation Note:
      This implementation solves the problem using a stack. The stack maintains a collection of height limits of rectangles that may grow as the array iteration continues. When a new height is encountered, each position p in the stack would be popped if the rectangle with height limit at position p can no longer extend right. The popped rectangle becomes the return value if it has a larger area than the current candidate.

      When the rectangle area is calculated, the range is between p0 + 1, where p0 is the current top of stack after popping rectangles that can no longer extend, and the current iterated position i.

      Mappings:
      Namespace Name Mixin selector
      official a Ln;a([I)Lcom/mojang/datafixers/util/Pair;
      intermediary method_30576 Lnet/minecraft/class_5459;method_30576([I)Lcom/mojang/datafixers/util/Pair;
      named findLargestRectangle Lnet/minecraft/world/BlockLocating;findLargestRectangle([I)Lcom/mojang/datafixers/util/Pair;

    • findColumnEnd

      public static Optional<BlockPos> findColumnEnd(BlockView world, BlockPos pos, Block intermediateBlock, Direction direction, Block endBlock)
      Finds an end to a block column starting from pos extending in direction. Within the column, the block states must be of intermediateBlock and the ending block state, whose position is returned, must be of endBlock.
      Parameters:
      world - the world the column is in
      pos - the starting position of the column
      intermediateBlock - the blocks that the column must be of, excluding the end
      direction - the direction which the column extends to
      endBlock - the ending block of the column
      Returns:
      the end position of the block column where a endBlock lays, or an empty optional if no such column exists
      Mappings:
      Namespace Name Mixin selector
      official a Ln;a(Lcab;Lgj;Lcdq;Lgo;Lcdq;)Ljava/util/Optional;
      intermediary method_34851 Lnet/minecraft/class_5459;method_34851(Lnet/minecraft/class_1922;Lnet/minecraft/class_2338;Lnet/minecraft/class_2248;Lnet/minecraft/class_2350;Lnet/minecraft/class_2248;)Ljava/util/Optional;
      named findColumnEnd Lnet/minecraft/world/BlockLocating;findColumnEnd(Lnet/minecraft/world/BlockView;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/Block;Lnet/minecraft/util/math/Direction;Lnet/minecraft/block/Block;)Ljava/util/Optional;