From 69e5d24d7773a7e411a93382f15904f7abbf74a1 Mon Sep 17 00:00:00 2001
From: MaXFeeD <maksfeed.mf@gmail.com>
Date: Sun, 11 Feb 2024 02:31:22 +0300
Subject: [PATCH] =?UTF-8?q?feat:=20=D0=A0=D0=B5=D0=B0=D0=BB=D0=B8=D0=B7?=
 =?UTF-8?q?=D0=B0=D1=86=D0=B8=D1=8F=20=D0=BA=D0=B0=D0=BB=D0=B1=D0=B5=D0=BA?=
 =?UTF-8?q?=D0=B0=20ItemDispensed?=
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- Превент действия отменяет дроп, позволяя задать пользовательское поведение.
---
 src/main/java/com/reider745/Main.java         |  2 +
 .../event/DispenseBehaviorOverrides.java      | 68 +++++++++++++++++++
 .../com/reider745/event/EventListener.java    |  2 -
 3 files changed, 70 insertions(+), 2 deletions(-)
 create mode 100644 src/main/java/com/reider745/event/DispenseBehaviorOverrides.java

diff --git a/src/main/java/com/reider745/Main.java b/src/main/java/com/reider745/Main.java
index 19a695dc..f5c2797b 100644
--- a/src/main/java/com/reider745/Main.java
+++ b/src/main/java/com/reider745/Main.java
@@ -6,6 +6,7 @@ import cn.nukkit.network.Network;
 import java.util.Arrays;
 
 import com.reider745.api.hooks.JarEditor;
+import com.reider745.event.DispenseBehaviorOverrides;
 import com.reider745.hooks.*;
 import com.reider745.hooks.bugfix.DimensionsFix;
 import com.reider745.hooks.bugfix.EntityItemHooks;
@@ -79,6 +80,7 @@ public class Main {
         loader.registerHooksInitializationForClass(LevelHooks.class);
         loader.registerHooksInitializationForClass(ItemUtils.class);
         loader.registerHooksInitializationForClass(EntityOverrides.class);
+        loader.registerHooksInitializationForClass(DispenseBehaviorOverrides.class);
         loader.registerHooksInitializationForClass(AndroidHooks.class);
 
         if (Arrays.stream(args).anyMatch("--snowfall-everywhere"::equals)) {
diff --git a/src/main/java/com/reider745/event/DispenseBehaviorOverrides.java b/src/main/java/com/reider745/event/DispenseBehaviorOverrides.java
new file mode 100644
index 00000000..1b92bd97
--- /dev/null
+++ b/src/main/java/com/reider745/event/DispenseBehaviorOverrides.java
@@ -0,0 +1,68 @@
+package com.reider745.event;
+
+import com.reider745.api.hooks.HookClass;
+import com.reider745.api.hooks.HookController;
+import com.reider745.api.hooks.TypeHook;
+import com.reider745.api.hooks.annotation.Hooks;
+import com.reider745.api.hooks.annotation.Inject;
+import com.reider745.hooks.ItemUtils;
+import com.zhekasmirnov.innercore.api.NativeCallback;
+
+import cn.nukkit.block.BlockDispenser;
+import cn.nukkit.dispenser.DefaultDispenseBehavior;
+import cn.nukkit.event.Cancellable;
+import cn.nukkit.event.block.BlockEvent;
+import cn.nukkit.item.Item;
+import cn.nukkit.math.BlockFace;
+import cn.nukkit.math.BlockFace.Axis;
+import javassist.CannotCompileException;
+import javassist.CtClass;
+import javassist.CtMethod;
+import javassist.NotFoundException;
+import cn.nukkit.math.Vector3;
+
+@Hooks(className = "cn.nukkit.block.BlockDispenser")
+public class DispenseBehaviorOverrides implements HookClass {
+	public static int dispenseSlot = -1;
+
+	@Override
+	public void init(CtClass ctClass) {
+		try {
+			CtMethod dispenseMethod = ctClass.getDeclaredMethod("dispense");
+			dispenseMethod.insertAt(dispenseMethod.getMethodInfo().getLineNumber(310),
+					"com.reider745.event.DispenseBehaviorOverrides.dispenseSlot = slot;");
+		} catch (NotFoundException | CannotCompileException e) {
+			System.out.println("Nukkit-MOT has been updated and overrides for `BlockDispenser.dispense` method are no longer available.");
+		}
+	}
+
+	public static class BlockDispenseEvent extends BlockEvent implements Cancellable {
+		public BlockDispenseEvent(BlockDispenser block) {
+			super(block);
+		}
+	}
+
+	@Inject(className = "cn.nukkit.dispenser.DefaultDispenseBehavior", type = TypeHook.BEFORE, signature = "(Lcn/nukkit/block/BlockDispenser;Lcn/nukkit/math/BlockFace;Lcn/nukkit/item/Item;)Lcn/nukkit/item/Item;")
+	public static void dispense(HookController controller, DefaultDispenseBehavior behavior, BlockDispenser block,
+			BlockFace face, Item item) {
+		Vector3 dispensePos = block.getDispensePosition();
+
+		if (face.getAxis() == Axis.Y) {
+			dispensePos.y -= 0.125;
+		} else {
+			dispensePos.y -= 0.15625;
+		}
+
+		BlockDispenseEvent event = new BlockDispenseEvent(block);
+		EventListener.consumeEvent(event,
+				() -> NativeCallback.onItemDispensed((float) dispensePos.x, (float) dispensePos.y,
+						(float) dispensePos.z, face.getIndex(), item.getId(), item.getCount(), item.getDamage(),
+						ItemUtils.getItemInstanceExtra(item), block.getLevel(), dispenseSlot));
+		dispenseSlot = -1;
+
+		if (event.isCancelled()) {
+			controller.setReplace(true);
+			controller.setResult(null);
+		}
+	}
+}
diff --git a/src/main/java/com/reider745/event/EventListener.java b/src/main/java/com/reider745/event/EventListener.java
index 2ab4ca92..56b35ff6 100644
--- a/src/main/java/com/reider745/event/EventListener.java
+++ b/src/main/java/com/reider745/event/EventListener.java
@@ -478,6 +478,4 @@ public class EventListener implements Listener {
     // TODO: onItemUseReleased (not only custom items)
 
     // TODO: onItemUseComplete (not only custom items)
-
-    // TODO: onItemDispensed
 }