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Fix cancelling PlayerDropItemEvent. Fixes BUKKIT-3313

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Up until this commit the PlayerDropItemEvent, if cancelled, would return
items to the first available slot in the inventory - which is clearly
undesirable as a player and plugin author to deal with.

This commit changes that by ensuring that the item is returned to where
it came from in the player's inventory. This still supports modifying the
drop from the player and will default to "first available slot" if the
item has changed since the event was fired. Other remaining behaviour of
the event is still in tact and has not been modified.
This commit is contained in:
ase34 2013-12-01 12:40:34 +01:00 committed by turt2live
parent 971329c42b
commit 87f6fa7bc9
1 changed files with 13 additions and 1 deletions
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12
src/main/java/net/minecraft/server/EntityHuman.java
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@ -514,6 +514,7 @@ public abstract class EntityHuman extends EntityLiving implements ICommandListen
}
public EntityItem a(boolean flag) {
// Called only when dropped by Q or CTRL-Q
return this.a(this.inventory.splitStack(this.inventory.itemInHandIndex, flag && this.inventory.getItemInHand() != null ? this.inventory.getItemInHand().count : 1), false, true);
}
@ -565,7 +566,18 @@ public abstract class EntityHuman extends EntityLiving implements ICommandListen
this.world.getServer().getPluginManager().callEvent(event);
if (event.isCancelled()) {
org.bukkit.inventory.ItemStack cur = player.getInventory().getItemInHand();
if (flag1 && (cur == null || cur.getAmount() == 0)) {
// The complete stack was dropped
player.getInventory().setItemInHand(drop.getItemStack());
} else if (flag1 && cur.isSimilar(drop.getItemStack()) && drop.getItemStack().getAmount() == 1) {
// Only one item is dropped
cur.setAmount(cur.getAmount() + 1);
player.getInventory().setItemInHand(cur);
} else {
// Fallback
player.getInventory().addItem(drop.getItemStack());
}
return null;
}
// CraftBukkit end