works in adventure

HOW WAS THIS NOT FOUND

src/main/java/one/devos/nautical/succ/mixin/ItemStackMixin.java

@@ -0,0 +1,29 @@
+package one.devos.nautical.succ.mixin;
+
+import net.minecraft.core.Registry;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemStack;
+
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.state.pattern.BlockInWorld;
+
+import one.devos.nautical.succ.Succ;
+
+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.callback.CallbackInfoReturnable;
+
+@Mixin(ItemStack.class)
+public abstract class ItemStackMixin {
+	@Shadow
+	public abstract boolean is(Item item);
+
+	@Inject(method = "hasAdventureModePlaceTagForBlock", at = @At("HEAD"), cancellable = true)
+	private void succ$allowAdventureClimbing(Registry<Block> blockRegistry, BlockInWorld pos, CallbackInfoReturnable<Boolean> cir) {
+		if (is(Succ.SUCTION_CUP)) {
+			cir.setReturnValue(Boolean.TRUE);
+		}
+	}
+}

src/main/resources/succ.mixins.json

@@ -4,6 +4,7 @@
   "package": "one.devos.nautical.succ.mixin",
   "compatibilityLevel": "JAVA_17",
   "mixins": [
+    "ItemStackMixin",
     "ServerGamePacketListenerImplMixin",
     "ServerPlayerGameModeMixin",
     "TeleportCommandMixin",