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Implement damage and break event for ItemStack

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This commit is contained in:
IzzelAliz 2020-06-14 16:42:02 +08:00
parent 4f0e52fb69
commit 73ca496686
1 changed files with 51 additions and 0 deletions
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51
arclight-common/src/main/java/io/izzel/arclight/common/mixin/core/item/ItemStackMixin.java
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@ -1,15 +1,37 @@
package io.izzel.arclight.common.mixin.core.item;
import io.izzel.arclight.common.bridge.entity.player.ServerPlayerEntityBridge;
import io.izzel.arclight.common.bridge.item.ItemStackBridge;
import net.minecraft.entity.LivingEntity;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.entity.player.ServerPlayerEntity;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.bukkit.craftbukkit.v.event.CraftEventFactory;
import org.bukkit.craftbukkit.v.inventory.CraftItemStack;
import org.bukkit.craftbukkit.v.util.CraftMagicNumbers;
import org.bukkit.event.player.PlayerItemDamageEvent;
import org.objectweb.asm.Opcodes;
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.ModifyVariable;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
import java.util.Random;
import java.util.function.Consumer;
@Mixin(ItemStack.class)
public abstract class ItemStackMixin implements ItemStackBridge {
// @formatter:off
@Shadow @Deprecated private Item item;
@Shadow private int count;
// @formatter:on
private static final Logger LOG = LogManager.getLogger("Arclight");
public void convertStack(int version) {
@ -22,4 +44,33 @@ public abstract class ItemStackMixin implements ItemStackBridge {
public void bridge$convertStack(int version) {
this.convertStack(version);
}
@ModifyVariable(method = "attemptDamageItem", index = 0, name = "amount", at = @At(value = "JUMP", opcode = Opcodes.IFGT, ordinal = 0))
private int arclight$itemDamage(int i, int amount, Random rand, ServerPlayerEntity damager) {
if (damager != null) {
PlayerItemDamageEvent event = new PlayerItemDamageEvent(((ServerPlayerEntityBridge) damager).bridge$getBukkitEntity(), CraftItemStack.asCraftMirror((ItemStack) (Object) this), i);
event.getPlayer().getServer().getPluginManager().callEvent(event);
if (i != event.getDamage() || event.isCancelled()) {
event.getPlayer().updateInventory();
}
if (event.isCancelled()) {
return -1;
}
return event.getDamage();
}
return i;
}
@Inject(method = "damageItem", at = @At(value = "INVOKE", target = "Lnet/minecraft/item/ItemStack;shrink(I)V"))
private <T extends LivingEntity> void arclight$itemBreak(int amount, T entityIn, Consumer<T> onBroken, CallbackInfo ci) {
if (this.count == 1 && entityIn instanceof PlayerEntity) {
CraftEventFactory.callPlayerItemBreakEvent(((PlayerEntity) entityIn), (ItemStack) (Object) this);
}
}
@Deprecated
public void setItem(Item item) {
this.item = item;
}
}