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Ability to apply mending to XP API

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This allows plugins that give players the ability to apply the experience
points to the Item Mending formula, which will repair an item instead
of giving the player experience points.

Both an API To standalone mend, and apply mending logic to .giveExp has been added.

== AT ==
public net.minecraft.world.entity.ExperienceOrb durabilityToXp(I)I
public net.minecraft.world.entity.ExperienceOrb xpToDurability(I)I
This commit is contained in:
Aikar
2017-12-20 17:36:49 -05:00
parent 533b86c3fc
commit b96c237fc4
1 changed files with 35 additions and 1 deletions
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36
paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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@@ -1665,7 +1665,41 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
}
@Override
public void giveExp(int exp) {
// Paper start - ability to apply mending
public int applyMending(int amount) {
ServerPlayer handle = this.getHandle();
// Logic copied from EntityExperienceOrb and remapped to unobfuscated methods/properties
final Optional<net.minecraft.world.item.enchantment.EnchantedItemInUse> stackEntry = net.minecraft.world.item.enchantment.EnchantmentHelper
.getRandomItemWith(net.minecraft.world.item.enchantment.EnchantmentEffectComponents.REPAIR_WITH_XP, handle, net.minecraft.world.item.ItemStack::isDamaged);
final net.minecraft.world.item.ItemStack itemstack = stackEntry.map(net.minecraft.world.item.enchantment.EnchantedItemInUse::itemStack).orElse(net.minecraft.world.item.ItemStack.EMPTY);
if (!itemstack.isEmpty() && itemstack.getItem().components().has(net.minecraft.core.component.DataComponents.MAX_DAMAGE)) {
net.minecraft.world.entity.ExperienceOrb orb = net.minecraft.world.entity.EntityType.EXPERIENCE_ORB.create(handle.level(), net.minecraft.world.entity.EntitySpawnReason.COMMAND);
orb.value = amount;
orb.spawnReason = org.bukkit.entity.ExperienceOrb.SpawnReason.CUSTOM;
orb.setPosRaw(handle.getX(), handle.getY(), handle.getZ());
final int possibleDurabilityFromXp = net.minecraft.world.item.enchantment.EnchantmentHelper.modifyDurabilityToRepairFromXp(
handle.serverLevel(), itemstack, amount
);
int i = Math.min(possibleDurabilityFromXp, itemstack.getDamageValue());
org.bukkit.event.player.PlayerItemMendEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerItemMendEvent(handle, orb, itemstack, stackEntry.get().inSlot(), i);
i = event.getRepairAmount();
orb.discard(org.bukkit.event.entity.EntityRemoveEvent.Cause.DESPAWN);
if (!event.isCancelled()) {
amount -= i * amount / possibleDurabilityFromXp;
itemstack.setDamageValue(itemstack.getDamageValue() - i);
}
}
return amount;
}
@Override
public void giveExp(int exp, boolean applyMending) {
if (applyMending) {
exp = this.applyMending(exp);
}
// Paper end - ability to apply mending
this.getHandle().giveExperiencePoints(exp);
}