Create/src/main/java/com/simibubi/create/foundation/utility/AllShapes.java

package com.simibubi.create.foundation.utility;

import static net.minecraft.util.Direction.EAST;
import static net.minecraft.util.Direction.SOUTH;
import static net.minecraft.util.Direction.UP;

import java.util.function.BiFunction;

import net.minecraft.block.Block;
import net.minecraft.block.Blocks;
import net.minecraft.block.DirectionalBlock;
import net.minecraft.block.PistonHeadBlock;
import net.minecraft.util.Direction;
import net.minecraft.util.Direction.Axis;
import net.minecraft.util.math.shapes.IBooleanFunction;
import net.minecraft.util.math.shapes.VoxelShape;
import net.minecraft.util.math.shapes.VoxelShapes;

public class AllShapes {

	// Independent Shapers
	public static final VoxelShaper

	CASING_14PX = shape(0, 0, 0, 16, 14, 16).forDirectional(),
			CASING_12PX = shape(0, 0, 0, 16, 12, 16).forDirectional(),
			CASING_11PX = shape(0, 0, 0, 16, 11, 16).forDirectional(),
			MOTOR_BLOCK = shape(0, 3, 3, 16, 13, 13).forHorizontal(EAST),
			FOUR_VOXEL_POLE = shape(6, 0, 6, 10, 16, 10).forAxis(),
			SIX_VOXEL_POLE = shape(5, 0, 5, 11, 16, 11).forAxis(),
			BELT_FUNNEL = shape(3, -4, 11, 13, 8, 17).forHorizontal(SOUTH),
			FUNNEL = shape(1, 1, 13, 15, 15, 17).forDirectional(SOUTH),
			EXTRACTOR =
				shape(4, 2, 11, 12, 10, 17).forDirectional(SOUTH).withVerticalShapes(cuboid(4, 11, 4, 12, 17, 12)),
			TRANSPOSER =
				shape(4, 4, -1, 12, 12, 1).add(5, 5, 0, 11, 11, 16).add(4, 4, 11, 12, 12, 17).forDirectional(SOUTH),
			FURNACE_ENGINE = shape(1, 1, 0, 15, 15, 16).add(0, 0, 9, 16, 16, 14).forHorizontal(Direction.SOUTH),
			PORTABLE_STORAGE_INTERFACE = shape(0, 0, 0, 16, 12, 16).add(3, 12, 3, 13, 16, 13).forDirectional(),
			PULLEY = shape(0, 0, 0, 16, 16, 2).add(1, 1, 2, 15, 15, 14).add(0, 0, 14, 16, 16, 16).forHorizontalAxis(),
			SPEED_CONTROLLER = shape(0, 0, 0, 16, 2, 16).add(1, 1, 1, 15, 15, 15).erase(0, 8, 5, 16, 16, 11)
					.add(2, 9, 2, 14, 14, 14).erase(6, 11, 0, 10, 16, 16).forHorizontalAxis(),
			HARVESTER_BASE = shape(0, 2, 0, 16, 14, 3).forDirectional(SOUTH),
			NOZZLE = shape(2, 0, 2, 14, 14, 14).add(1, 13, 1, 15, 15, 15).erase(3, 13, 3, 13, 15, 13).forDirectional(),
			CRANK = shape(5, 0, 5, 11, 6, 11).add(1, 3, 1, 15, 8, 15).forDirectional(),
			CART_ASSEMBLER = shape(VoxelShapes.fullCube()).add(-2, 0, 1, 18, 13, 15).forHorizontalAxis()

	;

	// Static Block Shapes
	public static final VoxelShape

	BASIN_BLOCK_SHAPE = shape(0, 2, 0, 16, 13, 16).erase(2, 5, 2, 14, 14, 14).add(2, 0, 2, 14, 2, 14).build(),
			CRUSHING_WHEEL_COLLISION_SHAPE = cuboid(0, 0, 0, 16, 22, 16),
			MECHANICAL_PROCESSOR_SHAPE = shape(VoxelShapes.fullCube()).erase(4, 0, 4, 12, 16, 12).build(),
			TURNTABLE_SHAPE = shape(1, 4, 1, 15, 8, 15).add(5, 0, 5, 11, 4, 11).build(),
			CRATE_BLOCK_SHAPE = cuboid(1, 0, 1, 15, 14, 15),
			TABLE_POLE_SHAPE = shape(4, 0, 4, 12, 2, 12).add(5, 2, 5, 11, 14, 11).build(),
			BELT_COLLISION_MASK = cuboid(0, 0, 0, 16, 19, 16),
			SCHEMATICANNON_SHAPE = shape(1, 0, 1, 15, 8, 15).add(0.5, 8, 0.5, 15.5, 11, 15.5).build(),
			PULLEY_MAGNET = shape(3, 0, 3, 13, 2, 13).add(FOUR_VOXEL_POLE.get(UP)).build(),
			MILLSTONE = shape(0, 0, 0, 16, 6, 16).add(2, 6, 2, 14, 13, 14).add(3, 13, 3, 13, 16, 13).build(),
			GAUGE_SHAPE_UP = shape(1, 0, 0, 15, 2, 16).add(2, 2, 1, 14, 14, 15).build()

	;

	// Internally Shared Shapes
	private static final VoxelShape

	PISTON_HEAD =
		Blocks.PISTON_HEAD.getDefaultState().with(DirectionalBlock.FACING, UP).with(PistonHeadBlock.SHORT, true)
				.getShape(null, null),
			PISTON_EXTENDED = shape(CASING_12PX.get(UP)).add(FOUR_VOXEL_POLE.get(Axis.Y)).build(),
			SMALL_GEAR_SHAPE = cuboid(2, 6, 2, 14, 10, 14), LARGE_GEAR_SHAPE = cuboid(0, 6, 0, 16, 10, 16),
			VERTICAL_TABLET_SHAPE = cuboid(3, 1, -1, 13, 15, 3), SQUARE_TABLET_SHAPE = cuboid(2, 2, -1, 14, 14, 3),
			LOGISTICS_TABLE_SLOPE =
				shape(0, 10, 15, 16, 14, 10.667).add(0, 12, 10.667, 16, 16, 6.333).add(0, 14, 6.333, 16, 18, 2).build(),
			SCHEMATICS_TABLE_SLOPE =
				shape(0, 10, 16, 16, 14, 11).add(0, 12, 11, 16, 16, 6).add(0, 14, 6, 16, 18, 1).build()

	;

	// More Shapers
	public static final VoxelShaper

	MECHANICAL_PISTON_HEAD = shape(PISTON_HEAD).forDirectional(), MECHANICAL_PISTON = CASING_12PX,
			MECHANICAL_PISTON_EXTENDED = shape(PISTON_EXTENDED).forDirectional(),
			SMALL_GEAR = shape(SMALL_GEAR_SHAPE).add(SIX_VOXEL_POLE.get(Axis.Y)).forAxis(),
			LARGE_GEAR = shape(LARGE_GEAR_SHAPE).add(SIX_VOXEL_POLE.get(Axis.Y)).forAxis(),
			LOGISTICAL_CONTROLLER = shape(SQUARE_TABLET_SHAPE).forDirectional(SOUTH),
			REDSTONE_BRIDGE =
				shape(VERTICAL_TABLET_SHAPE).forDirectional(SOUTH).withVerticalShapes(LOGISTICAL_CONTROLLER.get(UP)),
			LOGISTICS_TABLE = shape(TABLE_POLE_SHAPE).add(LOGISTICS_TABLE_SLOPE).forHorizontal(SOUTH),
			SCHEMATICS_TABLE = shape(TABLE_POLE_SHAPE).add(SCHEMATICS_TABLE_SLOPE).forDirectional(SOUTH)

	;

	private static Builder shape(VoxelShape shape) {
		return new Builder(shape);
	}

	private static Builder shape(double x1, double y1, double z1, double x2, double y2, double z2) {
		return shape(cuboid(x1, y1, z1, x2, y2, z2));
	}

	private static VoxelShape cuboid(double x1, double y1, double z1, double x2, double y2, double z2) {
		return Block.makeCuboidShape(x1, y1, z1, x2, y2, z2);
	}

	private static class Builder {
		VoxelShape shape;

		public Builder(VoxelShape shape) {
			this.shape = shape;
		}

		Builder add(VoxelShape shape) {
			this.shape = VoxelShapes.or(this.shape, shape);
			return this;
		}

		Builder add(double x1, double y1, double z1, double x2, double y2, double z2) {
			return add(cuboid(x1, y1, z1, x2, y2, z2));
		}

		Builder erase(double x1, double y1, double z1, double x2, double y2, double z2) {
			this.shape =
				VoxelShapes.combineAndSimplify(shape, cuboid(x1, y1, z1, x2, y2, z2), IBooleanFunction.ONLY_FIRST);
			return this;
		}

		VoxelShape build() {
			return shape;
		}

		VoxelShaper build(BiFunction<VoxelShape, Direction, VoxelShaper> factory, Direction direction) {
			return factory.apply(shape, direction);
		}

		VoxelShaper build(BiFunction<VoxelShape, Axis, VoxelShaper> factory, Axis axis) {
			return factory.apply(shape, axis);
		}

		VoxelShaper forDirectional(Direction direction) {
			return build(VoxelShaper::forDirectional, direction);
		}

		VoxelShaper forAxis() {
			return build(VoxelShaper::forAxis, Axis.Y);
		}

		VoxelShaper forHorizontalAxis() {
			return build(VoxelShaper::forHorizontalAxis, Axis.Z);
		}

		VoxelShaper forHorizontal(Direction direction) {
			return build(VoxelShaper::forHorizontal, direction);
		}

		VoxelShaper forDirectional() {
			return forDirectional(UP);
		}

	}

}