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Remove emptyCacheFlag from item stacks (fixes MC-258939)

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embeddedt 2023-07-11 17:25:26 -04:00
parent 4537f86bbc
commit c7aaa15a19
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1 changed files with 40 additions and 0 deletions
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common/src/main/java/org/embeddedt/modernfix/common/mixin/bugfix/item_cache_flag/ItemStackMixin.java Normal file
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package org.embeddedt.modernfix.common.mixin.bugfix.item_cache_flag;
import net.minecraft.world.item.Item;
import net.minecraft.world.item.ItemStack;
import org.objectweb.asm.Opcodes;
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 org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Redirect;
/**
* Remove emptyCacheFlag from ItemStack, as Mojang did in 1.20 due to <a href="https://bugs.mojang.com/browse/MC-258939">MC-258939</a>.
*/
@Mixin(ItemStack.class)
public class ItemStackMixin {
@Shadow @Final @Deprecated private Item item;
/**
* @author embeddedt, Mojang
* @reason avoid getItem()
*/
@Redirect(method = "isEmpty", at = @At(value = "INVOKE", target = "Lnet/minecraft/world/item/ItemStack;getItem()Lnet/minecraft/world/item/Item;"))
private Item getItemDirect(ItemStack stack) {
return this.item;
}
@Redirect(method = "*", at = @At(value = "FIELD", opcode = Opcodes.GETFIELD, target = "Lnet/minecraft/world/item/ItemStack;emptyCacheFlag:Z"))
private boolean checkEmptyDirect(ItemStack stack) {
return stack.isEmpty();
}
/**
* @author embeddedt, Mojang
* @reason flag is no longer used
*/
@Overwrite
private void updateEmptyCacheFlag() {}
}