Return WeakEnchantmentManager

2022-04-27 22:04:16 +03:00
parent 16eb219b60
commit a540b150aa
1 changed files with 95 additions and 0 deletions
--- a/sources/src/main/java/io/akarin/server/mixin/optimization/WeakEnchantmentManager.java
+++ b/sources/src/main/java/io/akarin/server/mixin/optimization/WeakEnchantmentManager.java
@@ -0,0 +1,95 @@
+/*
+ * This file is part of Sponge, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) SpongePowered <https://www.spongepowered.org>
+ * Copyright (c) contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package io.akarin.server.mixin.optimization;
+
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Overwrite;
+import org.spongepowered.asm.mixin.Shadow;
+
+import net.minecraft.server.DamageSource;
+import net.minecraft.server.EnchantmentManager;
+import net.minecraft.server.Entity;
+import net.minecraft.server.EntityHuman;
+import net.minecraft.server.EntityLiving;
+import net.minecraft.server.ItemStack;
+
+/**
+ * Fixes MC-128547(https://bugs.mojang.com/browse/MC-128547)
+ */
+@Mixin(value = EnchantmentManager.class, remap = false)
+public abstract class WeakEnchantmentManager {
+    @Shadow(aliases = "a") @Final private static EnchantmentManager.EnchantmentModifierProtection protection;
+    @Shadow(aliases = "c") @Final private static EnchantmentManager.EnchantmentModifierThorns thorns;
+    @Shadow(aliases = "d") @Final private static EnchantmentManager.EnchantmentModifierArthropods arthropods;
+    
+    @Shadow private static void a(EnchantmentManager.EnchantmentModifier modifier, Iterable<ItemStack> iterable) {}
+    @Shadow private static void a(EnchantmentManager.EnchantmentModifier modifier, ItemStack itemstack) {}
+    
+    @Overwrite
+    public static int a(Iterable<ItemStack> iterable, DamageSource damageSource) {
+        protection.a = 0; // OBFHELPER: damageModifier
+        protection.b = damageSource;
+        a(protection, iterable); // OBFHELPER: applyEnchantmentModifierArray
+        protection.b = null; // Akarin - Remove reference to Damagesource
+        return protection.a;
+    }
+    
+    @Overwrite
+    public static void a(EntityLiving user, Entity attacker) { // OBFHELPER: applyThornEnchantments
+        thorns.b = attacker;
+        thorns.a = user;
+        if (user != null) {
+            a(thorns, user.aQ()); // OBFHELPER: applyEnchantmentModifierArray - getEquipmentAndArmor
+        }
+        
+        if (attacker instanceof EntityHuman) {
+            a(thorns, user.getItemInMainHand()); // OBFHELPER: applyEnchantmentModifier
+        }
+        
+        // Akarin Start - remove references to entity objects to avoid memory leaks
+        thorns.b = null;
+        thorns.a = null;
+        // Akarin end
+    }
+
+    @Overwrite
+    public static void b(EntityLiving user, Entity target) { // OBFHELPER: applyArthropodEnchantments
+        arthropods.a = user;
+        arthropods.b = target;
+        if (user != null) {
+            a(arthropods, user.aQ()); // OBFHELPER: applyEnchantmentModifierArray - getEquipmentAndArmor
+        }
+        
+        if (user instanceof EntityHuman) {
+            a(arthropods, user.getItemInMainHand()); // OBFHELPER: applyEnchantmentModifier
+        }
+        
+        // Akarin Start - remove references to entity objects to avoid memory leaks
+        arthropods.a = null;
+        arthropods.b = null;
+        // Akarin end
+    }
+}