Refactor Carpet's sticky blocks code (#1505)
refactor sticky blocks code
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Space Walker authored and GitHub committed
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@@ -0,0 +1,25 @@
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package carpet.mixins;
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import org.spongepowered.asm.mixin.Mixin;
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import carpet.fakes.BlockBehaviourInterface;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.Direction;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.level.block.state.BlockBehaviour;
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import net.minecraft.world.level.block.state.BlockState;
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@Mixin(BlockBehaviour.class)
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public class BlockBehaviour_customStickyMixin implements BlockBehaviourInterface {
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@Override
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public boolean isSticky(BlockState state) {
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return false;
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}
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@Override
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public boolean isStickyToNeighbor(Level level, BlockPos pos, BlockState state, BlockPos neighborPos, BlockState neighborState, Direction dir, Direction moveDir) {
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return false;
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}
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}
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@@ -0,0 +1,46 @@
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package carpet.mixins;
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import org.spongepowered.asm.mixin.Mixin;
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import carpet.CarpetSettings;
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import carpet.fakes.BlockBehaviourInterface;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.Direction;
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import net.minecraft.core.Direction.Axis;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.level.block.Block;
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import net.minecraft.world.level.block.Blocks;
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import net.minecraft.world.level.block.ChainBlock;
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import net.minecraft.world.level.block.EndRodBlock;
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import net.minecraft.world.level.block.state.BlockState;
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@Mixin(ChainBlock.class)
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public class ChainBlock_customStickyMixin implements BlockBehaviourInterface {
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@Override
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public boolean isSticky(BlockState state) {
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return CarpetSettings.doChainStone;
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}
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@Override
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public boolean isStickyToNeighbor(Level level, BlockPos pos, BlockState state, BlockPos neighborPos, BlockState neighborState, Direction dir, Direction moveDir) {
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Axis axis = state.getValue(ChainBlock.AXIS);
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if (axis != dir.getAxis()) {
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return false;
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}
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if (CarpetSettings.chainStoneStickToAll) {
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return true;
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}
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if (neighborState.is((Block)(Object)this)) {
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return axis == neighborState.getValue(ChainBlock.AXIS);
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}
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if (neighborState.is(Blocks.END_ROD)) {
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return axis == neighborState.getValue(EndRodBlock.FACING).getAxis();
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}
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return Block.canSupportCenter(level, neighborPos, dir.getOpposite());
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}
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}
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@@ -0,0 +1,45 @@
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package carpet.mixins;
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import org.spongepowered.asm.mixin.Mixin;
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import carpet.CarpetSettings;
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import carpet.fakes.BlockBehaviourInterface;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.Direction;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.level.block.Block;
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import net.minecraft.world.level.block.ChestBlock;
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import net.minecraft.world.level.block.state.BlockState;
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import net.minecraft.world.level.block.state.properties.ChestType;
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@Mixin(ChestBlock.class)
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public class ChestBlock_customStickyMixin implements BlockBehaviourInterface {
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@Override
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public boolean isSticky(BlockState state) {
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return CarpetSettings.movableBlockEntities;
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}
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@Override
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public boolean isStickyToNeighbor(Level level, BlockPos pos, BlockState state, BlockPos neighborPos, BlockState neighborState, Direction dir, Direction moveDir) {
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if (!neighborState.is((Block)(Object)this)) {
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return false;
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}
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ChestType type = state.getValue(ChestBlock.TYPE);
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ChestType neighborType = neighborState.getValue(ChestBlock.TYPE);
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if (type == ChestType.SINGLE || neighborType == ChestType.SINGLE) {
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return false;
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}
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if (type != neighborType.getOpposite()) {
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return false;
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}
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Direction facing = state.getValue(ChestBlock.FACING);
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Direction neighborFacing = state.getValue(ChestBlock.FACING);
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return facing == neighborFacing;
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}
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}
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@@ -0,0 +1,26 @@
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package carpet.mixins;
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import org.spongepowered.asm.mixin.Mixin;
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import carpet.fakes.BlockBehaviourInterface;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.Direction;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.level.block.Blocks;
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import net.minecraft.world.level.block.HoneyBlock;
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import net.minecraft.world.level.block.state.BlockState;
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@Mixin(HoneyBlock.class)
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public class HoneyBlock_customStickyMixin implements BlockBehaviourInterface {
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@Override
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public boolean isSticky(BlockState state) {
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return true;
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}
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@Override
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public boolean isStickyToNeighbor(Level level, BlockPos pos, BlockState state, BlockPos neighborPos, BlockState neighborState, Direction dir, Direction moveDir) {
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return !neighborState.is(Blocks.SLIME_BLOCK);
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}
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}
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@@ -1,313 +0,0 @@
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package carpet.mixins;
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import carpet.CarpetSettings;
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import org.spongepowered.asm.mixin.Final;
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import org.spongepowered.asm.mixin.Mixin;
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import org.spongepowered.asm.mixin.Shadow;
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import org.spongepowered.asm.mixin.injection.At;
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import org.spongepowered.asm.mixin.injection.Inject;
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import org.spongepowered.asm.mixin.injection.Redirect;
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import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
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import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
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import java.util.List;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.Direction;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.level.block.Block;
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import net.minecraft.world.level.block.Blocks;
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import net.minecraft.world.level.block.ChainBlock;
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import net.minecraft.world.level.block.ChestBlock;
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import net.minecraft.world.level.block.EndRodBlock;
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import net.minecraft.world.level.block.piston.PistonStructureResolver;
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import net.minecraft.world.level.block.state.BlockState;
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import net.minecraft.world.level.block.state.properties.ChestType;
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@Mixin(PistonStructureResolver.class)
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public abstract class PistonHandler_customStickyMixin
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{
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/*
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* The following Mixins make double chests behave sticky on the side where they are connected to its other double chest half block.
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* This is achieved by Injecting calls to "stickToStickySide" where normally slimeblocks stick to all their neighboring blocks.
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* redirectGetBlockState_1_A/B is neccessary to get access to the blockState_1 variable, which is used in redirectSlimeBlock.
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* redirectSlimeBlock is neccessary to also enable chests to have the backward stickyness (this seems to be an edge case)
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*
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* Note that it is possible to separate chests the same way pistons can separate slimeblocks.
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*
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* These also support other custom sticky block with non-standard rules, like chains.
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*/
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@Shadow @Final private Level level;
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@Shadow @Final private Direction pushDirection;
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@Shadow protected abstract boolean addBlockLine(BlockPos blockPos_1, Direction direction_1);
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@Shadow private static boolean isSticky(BlockState block_1) { return false; }
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@Shadow private static boolean canStickToEachOther(BlockState block, BlockState block2) {return false;}
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@Shadow protected abstract boolean addBranchingBlocks(BlockPos pos);
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// collects information about sticking block when backtracking.
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private BlockPos currentPos;
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private BlockState currentState;
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@Redirect(method = "addBlockLine", at = @At(value = "INVOKE", target = "Lnet/minecraft/world/level/Level;getBlockState(Lnet/minecraft/core/BlockPos;)Lnet/minecraft/world/level/block/state/BlockState;", ordinal = 0))
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private BlockState redirectGetBlockState_1_A(Level world, BlockPos pos) {
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return currentState = world.getBlockState(pos);
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}
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@Redirect(method = "addBlockLine", at = @At(value = "INVOKE", target = "Lnet/minecraft/world/level/Level;getBlockState(Lnet/minecraft/core/BlockPos;)Lnet/minecraft/world/level/block/state/BlockState;", ordinal = 1))
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private BlockState redirectGetBlockState_1_B(Level world, BlockPos pos) {
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currentPos = pos;
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return currentState = world.getBlockState(pos);
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}
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/**
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* Makes backwards stickiness work with sticky non-slimeblocks as well (chests, chains).
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* @author 2No2Name, gnembon
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*/
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@Redirect(method = "addBlockLine", at = @At(
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value = "INVOKE",
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target = "Lnet/minecraft/world/level/block/piston/PistonStructureResolver;isSticky(Lnet/minecraft/world/level/block/state/BlockState;)Z",
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ordinal = 0 )
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)
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private boolean redirectIsStickyBlock(BlockState blockState)
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{
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// applies to both MBE chests as well as sticky chains
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return blockCanBePulled(blockState) || isSticky(blockState);
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}
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/**
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* Returns true if there is a modification making this blockState sticky on the given face. Vanilla stickyness of SLIME_BLOCK is not affected.
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* @param blockState BlockState to determine the stickyness of
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* @return boolean whether block is not SLIME_BLOCK and is sticky in the given direction
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* @author 2No2Name
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*/
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private boolean blockCanBePulled(BlockState blockState) {
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if (CarpetSettings.movableBlockEntities)
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{
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Block block = blockState.getBlock();
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if (block == Blocks.CHEST || block == Blocks.TRAPPED_CHEST)
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//Make chests be sticky on the side to
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return getDirectionToOtherChestHalf(blockState) == pushDirection.getOpposite();
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//example how you could make sticky pistons have a sticky side:
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//if(block == Blocks.STICKY_PISTON)
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// return blockState.get(FacingBlock.FACING) == motionDirection;
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}
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if (CarpetSettings.doChainStone && blockState.getBlock() == Blocks.CHAIN)
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{
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return isChainOnAxis(currentState, pushDirection);
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}
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return false;
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}
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/**
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* Determines if we should continue to drag blocks in a line (going opposite to the direction of a push)
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* @param previous: block that is already dragged
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* @param next: canidate block to decide if needs to be dragged along as well.
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* @return true if we should keep dragging blocks behind
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*/
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@Redirect(method = "addBlockLine", at = @At(
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value = "INVOKE",
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target = "Lnet/minecraft/world/level/block/piston/PistonStructureResolver;canStickToEachOther(Lnet/minecraft/world/level/block/state/BlockState;Lnet/minecraft/world/level/block/state/BlockState;)Z")
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)
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private boolean isDraggingPreviousBlockBehind(BlockState previous, BlockState next)
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{
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if (CarpetSettings.doChainStone)
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{
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if (previous.getBlock() == Blocks.CHAIN && isChainOnAxis(previous, pushDirection))
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{
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if ( (next.getBlock() == Blocks.CHAIN && isChainOnAxis(next, pushDirection))
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|| CarpetSettings.chainStoneStickToAll
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|| isEndRodOnAxis(next, pushDirection.getAxis())
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|| Block.canSupportCenter(level, currentPos, pushDirection))
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{
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return true;
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}
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}
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}
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return canStickToEachOther(previous, next);
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}
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/**
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* Handles blocks besides the slimeblock that are sticky. Currently only supports blocks that are sticky on one side.
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* This runs in U style structures with something in the middle on retraction.
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* @author 2No2Name
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*/
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@Inject(method = "addBlockLine", locals = LocalCapture.CAPTURE_FAILHARD, cancellable = true, at = @At(
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value = "INVOKE",
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target = "Ljava/util/List;get(I)Ljava/lang/Object;",
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shift = At.Shift.AFTER
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))
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private void stickToStickySide(BlockPos blockPos_1, Direction direction_1, CallbackInfoReturnable<Boolean> cir, BlockState blockState_1, int int_1, int int_2, int int_4, BlockPos blockPos_3, int int_5, int int_6)
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{
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if (CarpetSettings.movableBlockEntities)
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{
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if (!stickToStickySide(blockPos_3))
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{
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cir.setReturnValue(false);
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}
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}
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}
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@Shadow @Final private List<BlockPos> toPush;
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@Inject(method = "resolve", at = @At(value = "INVOKE", target = "Ljava/util/List;get(I)Ljava/lang/Object;", shift = At.Shift.AFTER), locals = LocalCapture.CAPTURE_FAILHARD, cancellable = true)
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/**
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* Handles blocks besides the slimeblock that are sticky.
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* Supports blocks that are sticky on one side, (double chests now, 2no2name)
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* as well as other special sticky blocks (chains, gnembon).
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* @author 2No2Name, gnembon
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*/
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private void stickToStickySide(CallbackInfoReturnable<Boolean> cir, int int_1){
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if (CarpetSettings.movableBlockEntities)
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{
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if (!stickToStickySide(this.toPush.get(int_1)))
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{
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cir.setReturnValue(false);
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}
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}
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if (CarpetSettings.doChainStone)
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{
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BlockPos pos = this.toPush.get(int_1);
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BlockState chainState = level.getBlockState(pos);
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// chain is sideways
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if (chainState.getBlock() == Blocks.CHAIN && !isChainOnAxis(chainState, pushDirection)
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&& !this.addBranchingBlocks(pos))
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{
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cir.setReturnValue(false);
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}
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}
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}
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/**
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* Handles blocks besides the slimeblock that are sticky. Currently only supports blocks that are sticky on one side.
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* Currently the only additional sticky block is the double chest, which sticks to its other chest half.
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* @param blockPos_1 location of a block that moves and needs to stick other blocks to it
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* @author 2No2Name
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*/
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private boolean stickToStickySide(BlockPos blockPos_1)
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{
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BlockState blockState_1 = this.level.getBlockState(blockPos_1);
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Block block = blockState_1.getBlock();
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Direction stickyDirection = null;
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if(block == Blocks.CHEST || block == Blocks.TRAPPED_CHEST) {
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stickyDirection = getDirectionToOtherChestHalf(blockState_1);
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}
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//example how you could make sticky pistons have a sticky side:
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//else if(block == Blocks.STICKY_PISTON){
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// stickyDirection = blockState_1.get(FacingBlock.FACING);
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//}
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return stickyDirection == null || this.addBlockLine(blockPos_1.relative(stickyDirection), stickyDirection); //offset
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}
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/**
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* This never seems to run
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* @author gnembon
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*/
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@Inject(method = "addBlockLine", locals = LocalCapture.CAPTURE_FAILHARD, cancellable = true, at= @At(
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value = "INVOKE",
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target = "Lnet/minecraft/world/level/block/piston/PistonStructureResolver;isSticky(Lnet/minecraft/world/level/block/state/BlockState;)Z",
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ordinal = 1,
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shift = At.Shift.BEFORE
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)
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)
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private void redirectIsStickyBlock(BlockPos pos, Direction dir, CallbackInfoReturnable<Boolean> cir,
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BlockState blockState, int i, int j, int l, BlockPos blockPos2, int m, int n, BlockPos blockPos3)
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{
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if (CarpetSettings.doChainStone)
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{
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BlockState chainState = level.getBlockState(blockPos3);
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if (chainState.getBlock() == Blocks.CHAIN && !isChainOnAxis(chainState, pushDirection) && !addBranchingBlocks(blockPos3))
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{
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cir.setReturnValue(false);
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}
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}
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}
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/**
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* Custom movement of blocks stuck to the sides of blocks other than slimeblocks like chains
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*/
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@Inject(method = "addBranchingBlocks", locals = LocalCapture.CAPTURE_FAILHARD, cancellable = true, at = @At(
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value = "INVOKE",
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target = "Lnet/minecraft/world/level/block/piston/PistonStructureResolver;canStickToEachOther(Lnet/minecraft/world/level/block/state/BlockState;Lnet/minecraft/world/level/block/state/BlockState;)Z",
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shift = At.Shift.BEFORE
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))
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private void otherSideStickyCases(BlockPos pos, CallbackInfoReturnable<Boolean> cir,
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BlockState blockState, Direction var3[], int var4, int var5, Direction direction, BlockPos blockPos, BlockState blockState2)
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{
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if (CarpetSettings.doChainStone)
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{
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if (blockState.getBlock() == Blocks.CHAIN && isChainOnAxis(blockState, direction) && !blockState2.isAir())
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{
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Block otherBlock = blockState2.getBlock();
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if ((otherBlock == Blocks.CHAIN && (blockState.getValue(ChainBlock.AXIS) == blockState2.getValue(ChainBlock.AXIS)))
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|| CarpetSettings.chainStoneStickToAll
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|| isEndRodOnAxis(blockState2, blockState.getValue(ChainBlock.AXIS))
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|| otherBlock == Blocks.HONEY_BLOCK
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|| Block.canSupportCenter(level, blockPos, direction.getOpposite()))
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{
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if (!addBlockLine(blockPos, direction))
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{
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cir.setReturnValue(false);
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}
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}
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}
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}
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}
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/**
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* chains may cause moving adjacent blocks, meaning isAdjacentBlockStuck check is irreliable.
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* since initial block may not be sticky.
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* in vanilla canMoveAdjacent is always called on block2 being sticky.
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* @param block
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* @param block2
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* @return
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*/
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@Redirect(method = "addBranchingBlocks", at = @At(
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value = "INVOKE",
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target = "Lnet/minecraft/world/level/block/piston/PistonStructureResolver;canStickToEachOther(Lnet/minecraft/world/level/block/state/BlockState;Lnet/minecraft/world/level/block/state/BlockState;)Z")
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)
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private boolean isStuckSlimeStone(BlockState block, BlockState block2)
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{
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return isSticky(block2) && canStickToEachOther(block, block2);
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}
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//if more helpers like this start existing, move this to Chest class
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/**
|
||||
* @param blockState blockState of one double chest half block
|
||||
* @return Direction towards the other block of the double chest, null if the blockState is not a double chest
|
||||
* @author 2No2Name
|
||||
*/
|
||||
private Direction getDirectionToOtherChestHalf(BlockState blockState)
|
||||
{
|
||||
ChestType chestType;
|
||||
try{
|
||||
chestType = blockState.getValue(ChestBlock.TYPE);
|
||||
}catch(IllegalArgumentException e){return null;}
|
||||
if(chestType == ChestType.SINGLE)
|
||||
return null;
|
||||
return ChestBlock.getConnectedDirection(blockState);
|
||||
}
|
||||
|
||||
|
||||
private boolean isChainOnAxis(BlockState state, Direction stickDirection)
|
||||
{
|
||||
Direction.Axis axis;
|
||||
try {
|
||||
axis = state.getValue(ChainBlock.AXIS);
|
||||
}catch(IllegalArgumentException e){return false;}
|
||||
return stickDirection.getAxis() == axis;
|
||||
}
|
||||
|
||||
private boolean isEndRodOnAxis(BlockState state, Direction.Axis stickAxis)
|
||||
{
|
||||
if (state.getBlock() != Blocks.END_ROD) return false;
|
||||
Direction facing;
|
||||
try {
|
||||
facing = state.getValue(EndRodBlock.FACING);
|
||||
}catch(IllegalArgumentException e){return false;}
|
||||
return stickAxis == facing.getAxis();
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,94 @@
|
||||
package carpet.mixins;
|
||||
|
||||
import org.spongepowered.asm.mixin.Final;
|
||||
import org.spongepowered.asm.mixin.Mixin;
|
||||
import org.spongepowered.asm.mixin.Shadow;
|
||||
import org.spongepowered.asm.mixin.injection.At;
|
||||
import org.spongepowered.asm.mixin.injection.Inject;
|
||||
import org.spongepowered.asm.mixin.injection.Redirect;
|
||||
import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
|
||||
import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
|
||||
|
||||
import carpet.fakes.BlockBehaviourInterface;
|
||||
|
||||
import net.minecraft.core.BlockPos;
|
||||
import net.minecraft.core.Direction;
|
||||
import net.minecraft.world.level.Level;
|
||||
import net.minecraft.world.level.block.piston.PistonStructureResolver;
|
||||
import net.minecraft.world.level.block.state.BlockState;
|
||||
|
||||
@Mixin(PistonStructureResolver.class)
|
||||
public class PistonStructureResolver_customStickyMixin {
|
||||
|
||||
@Shadow @Final private Level level;
|
||||
@Shadow @Final private Direction pushDirection;
|
||||
|
||||
@Inject(
|
||||
method = "isSticky",
|
||||
cancellable = true,
|
||||
at = @At(
|
||||
value = "HEAD"
|
||||
)
|
||||
)
|
||||
private static void isSticky(BlockState state, CallbackInfoReturnable<Boolean> cir) {
|
||||
cir.setReturnValue(((BlockBehaviourInterface)state.getBlock()).isSticky(state));
|
||||
}
|
||||
|
||||
// fields that are needed because @Redirects cannot capture locals
|
||||
private BlockPos pos_addBlockLine;
|
||||
private BlockPos behindPos_addBlockLine;
|
||||
|
||||
@Inject(
|
||||
method = "addBlockLine",
|
||||
locals = LocalCapture.CAPTURE_FAILHARD,
|
||||
at = @At(
|
||||
value = "INVOKE",
|
||||
ordinal = 1,
|
||||
target = "Lnet/minecraft/world/level/Level;getBlockState(Lnet/minecraft/core/BlockPos;)Lnet/minecraft/world/level/block/state/BlockState;"
|
||||
)
|
||||
)
|
||||
private void captureBlockLinePositions(BlockPos pos, Direction fromDir, CallbackInfoReturnable<Boolean> cir, BlockState state, int dst, BlockPos behindPos) {
|
||||
pos_addBlockLine = behindPos.relative(pushDirection);
|
||||
behindPos_addBlockLine = behindPos;
|
||||
}
|
||||
|
||||
@Redirect(
|
||||
method = "addBlockLine",
|
||||
at = @At(
|
||||
value = "INVOKE",
|
||||
target = "Lnet/minecraft/world/level/block/piston/PistonStructureResolver;canStickToEachOther(Lnet/minecraft/world/level/block/state/BlockState;Lnet/minecraft/world/level/block/state/BlockState;)Z"
|
||||
)
|
||||
)
|
||||
private boolean onAddBlockLineCanStickToEachOther(BlockState state, BlockState behindState) {
|
||||
return ((BlockBehaviourInterface)state.getBlock()).isStickyToNeighbor(level, pos_addBlockLine, state, behindPos_addBlockLine, behindState, pushDirection.getOpposite(), pushDirection);
|
||||
}
|
||||
|
||||
// fields that are needed because @Redirects cannot capture locals
|
||||
private Direction dir_addBranchingBlocks;
|
||||
private BlockPos neighborPos_addBranchingBlocks;
|
||||
|
||||
@Inject(
|
||||
method = "addBranchingBlocks",
|
||||
locals = LocalCapture.CAPTURE_FAILHARD,
|
||||
at = @At(
|
||||
value = "INVOKE",
|
||||
ordinal = 1,
|
||||
target = "Lnet/minecraft/world/level/Level;getBlockState(Lnet/minecraft/core/BlockPos;)Lnet/minecraft/world/level/block/state/BlockState;"
|
||||
)
|
||||
)
|
||||
private void captureNeighborPositions(BlockPos pos, CallbackInfoReturnable<Boolean> cir, BlockState state, Direction[] dirs, int i, int j, Direction dir, BlockPos neighborPos) {
|
||||
dir_addBranchingBlocks = dir;
|
||||
neighborPos_addBranchingBlocks = neighborPos;
|
||||
}
|
||||
|
||||
@Redirect(
|
||||
method = "addBranchingBlocks",
|
||||
at = @At(
|
||||
value = "INVOKE",
|
||||
target = "Lnet/minecraft/world/level/block/piston/PistonStructureResolver;canStickToEachOther(Lnet/minecraft/world/level/block/state/BlockState;Lnet/minecraft/world/level/block/state/BlockState;)Z"
|
||||
)
|
||||
)
|
||||
private boolean onAddBranchingBlocksCanStickToEachOther(BlockState neighborState, BlockState state, BlockPos pos) {
|
||||
return ((BlockBehaviourInterface)state.getBlock()).isStickyToNeighbor(level, pos, state, neighborPos_addBranchingBlocks, neighborState, dir_addBranchingBlocks, pushDirection);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,26 @@
|
||||
package carpet.mixins;
|
||||
|
||||
import org.spongepowered.asm.mixin.Mixin;
|
||||
|
||||
import carpet.fakes.BlockBehaviourInterface;
|
||||
|
||||
import net.minecraft.core.BlockPos;
|
||||
import net.minecraft.core.Direction;
|
||||
import net.minecraft.world.level.Level;
|
||||
import net.minecraft.world.level.block.Blocks;
|
||||
import net.minecraft.world.level.block.SlimeBlock;
|
||||
import net.minecraft.world.level.block.state.BlockState;
|
||||
|
||||
@Mixin(SlimeBlock.class)
|
||||
public class SlimeBlock_customStickyMixin implements BlockBehaviourInterface {
|
||||
|
||||
@Override
|
||||
public boolean isSticky(BlockState state) {
|
||||
return true;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean isStickyToNeighbor(Level level, BlockPos pos, BlockState state, BlockPos neighborPos, BlockState neighborState, Direction dir, Direction moveDir) {
|
||||
return !neighborState.is(Blocks.HONEY_BLOCK);
|
||||
}
|
||||
}
|
||||
Reference in new issue
Block a user