From 3d2097eb2701dbe2895b449b5c13bca800ea796f Mon Sep 17 00:00:00 2001
From: Marc Hannappel <salandora@gmail.com>
Date: Thu, 6 Jun 2019 18:47:16 +0200
Subject: [PATCH] Fix for shulker dispenser behaviour Fixes the behaviour of
 dispensers to remove 2 shulker boxes from a stack instead of 1

---
 ...BlockPlacementDispenserBehaviourMixin.java | 21 +++++++++++++++++++
 src/main/resources/carpet.mixins.json         |  4 +++-
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/carpet/mixins/BlockPlacementDispenserBehaviourMixin.java

diff --git a/src/main/java/carpet/mixins/BlockPlacementDispenserBehaviourMixin.java b/src/main/java/carpet/mixins/BlockPlacementDispenserBehaviourMixin.java
new file mode 100644
index 00000000..37af7460
--- /dev/null
+++ b/src/main/java/carpet/mixins/BlockPlacementDispenserBehaviourMixin.java
@@ -0,0 +1,21 @@
+package carpet.mixins;
+
+import carpet.CarpetSettings;
+import net.minecraft.block.dispenser.BlockPlacementDispenserBehavior;
+import net.minecraft.item.ItemStack;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(BlockPlacementDispenserBehavior.class)
+public class BlockPlacementDispenserBehaviourMixin
+{
+    @Redirect(method = "dispenseSilently", at = @At(value="INVOKE", target="Lnet/minecraft/item/ItemStack;decrement(I)V"))
+    private void cancleDoubleDecrement(ItemStack stack, int amount)
+    {
+        if (!CarpetSettings.b_stackableShulkerBoxes)
+        {
+            stack.decrement(amount);
+        }
+    }
+}
diff --git a/src/main/resources/carpet.mixins.json b/src/main/resources/carpet.mixins.json
index 762535d6..a76129f4 100644
--- a/src/main/resources/carpet.mixins.json
+++ b/src/main/resources/carpet.mixins.json
@@ -79,7 +79,9 @@
     "PistonBlock_movableTEMixin",
     "PistonBlockEntity_movableTEMixin",
     "World_movableTEMixin",
-    "WorldChunk_movableTEMixin"
+    "WorldChunk_movableTEMixin",
+
+    "BlockPlacementDispenserBehaviourMixin",
   ],
   "client": [
     "MinecraftClientMixin",