From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: violetc <58360096+s-yh-china@users.noreply.github.com>
Date: Sun, 27 Mar 2022 12:48:40 +0800
Subject: [PATCH] Redstone Shears Wrench


diff --git a/src/main/java/net/minecraft/world/item/ShearsItem.java b/src/main/java/net/minecraft/world/item/ShearsItem.java
index 88156fa7722baa2738b908bfcd648bca371c533f..8206f105f80355fcc9061886215103bb480ab4a1 100644
--- a/src/main/java/net/minecraft/world/item/ShearsItem.java
+++ b/src/main/java/net/minecraft/world/item/ShearsItem.java
@@ -1,7 +1,9 @@
 package net.minecraft.world.item;
 
+import net.minecraft.Util;
 import net.minecraft.advancements.CriteriaTriggers;
 import net.minecraft.core.BlockPos;
+import net.minecraft.network.chat.Component;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.sounds.SoundEvents;
 import net.minecraft.sounds.SoundSource;
@@ -14,9 +16,19 @@ import net.minecraft.world.item.context.UseOnContext;
 import net.minecraft.world.level.Level;
 import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.Blocks;
+import net.minecraft.world.level.block.ComparatorBlock;
+import net.minecraft.world.level.block.DispenserBlock;
 import net.minecraft.world.level.block.GrowingPlantHeadBlock;
+import net.minecraft.world.level.block.HopperBlock;
+import net.minecraft.world.level.block.ObserverBlock;
+import net.minecraft.world.level.block.RepeaterBlock;
+import net.minecraft.world.level.block.piston.PistonBaseBlock;
 import net.minecraft.world.level.block.state.BlockState;
 import net.minecraft.world.level.gameevent.GameEvent;
+import net.minecraft.world.level.block.state.StateDefinition;
+import net.minecraft.world.level.block.state.properties.Property;
+
+import javax.annotation.Nullable;
 
 public class ShearsItem extends Item {
     public ShearsItem(Item.Properties settings) {
@@ -80,6 +92,59 @@ public class ShearsItem extends Item {
             }
         }
 
+        // Leaves start - shears wrench
+        if (top.leavesmc.leaves.LeavesConfig.redstoneShearsWrench && block instanceof ObserverBlock || block instanceof DispenserBlock ||
+            block instanceof PistonBaseBlock || block instanceof HopperBlock || block instanceof RepeaterBlock || block instanceof ComparatorBlock) {
+            StateDefinition<Block, BlockState> blockstatelist = block.getStateDefinition();
+            Property<?> iblockstate = blockstatelist.getProperty("facing");
+            Player player = context.getPlayer();
+
+            if (iblockstate == null || player == null) {
+                return InteractionResult.FAIL;
+            }
+
+            if (block instanceof PistonBaseBlock) {
+                if (getNameHelper(blockState, blockstatelist.getProperty("extended")).equals("true")) {
+                    return InteractionResult.FAIL;
+                }
+            }
+
+            if (block instanceof RepeaterBlock || block instanceof ComparatorBlock) {
+                if (getNameHelper(blockState, blockstatelist.getProperty("powered")).equals("true")) {
+                    return InteractionResult.FAIL;
+                }
+                if (block instanceof RepeaterBlock) {
+                    if (getNameHelper(blockState, blockstatelist.getProperty("locked")).equals("true")) {
+                        return InteractionResult.FAIL;
+                    }
+                }
+            }
+
+            BlockState iblockdata1 = ShearsItem.cycleState(blockState, iblockstate, player.isSecondaryUseActive());
+            level.setBlock(blockPos, iblockdata1, 18);
+            ShearsItem.message(player, Component.translatable("item.minecraft.debug_stick.update", iblockstate.getName(), ShearsItem.getNameHelper(iblockdata1, iblockstate)));
+            return InteractionResult.CONSUME_PARTIAL;
+        }
+        // Leaves end - shears wrench
+
         return super.useOn(context);
     }
+
+    // Leaves start - shears wrench
+    private static <T extends Comparable<T>> BlockState cycleState(BlockState state, Property<T> property, boolean inverse) {
+        return (BlockState) state.setValue(property, ShearsItem.getRelative(property.getPossibleValues(), state.getValue(property), inverse)); // CraftBukkit - decompile error
+    }
+
+    private static <T> T getRelative(Iterable<T> elements, @Nullable T current, boolean inverse) {
+        return inverse ? Util.findPreviousInIterable(elements, current) : Util.findNextInIterable(elements, current);
+    }
+
+    private static void message(Player player, Component message) {
+        ((ServerPlayer) player).sendSystemMessage(message, true);
+    }
+
+    private static <T extends Comparable<T>> String getNameHelper(BlockState state, Property<T> property) {
+        return property.getName(state.getValue(property));
+    }
+    // Leaves end - shears wrench
 }