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Rework mob item dropping on death. Fixes BUKKIT-5625

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After the changes in d611cff2 we started including a mob's equipment when
calling EntityDeathEvent so plugins can access this data. However, the
changes to enable this triggered a bug that makes skeletons and pig zombies
no longer drop equipment because they handle this differently than the rest.
On top of this we don't handle dropping equipment for mobs that cannot
pick up items in vanilla even though vanilla does drop equipment for them
if you summon them with it. We also do not include a horse's inventory
in the event so they drop their saddle, armor, chest, and chest contents
with no way for a plugin to control this.

To solve this issues we revert mob item dropping back to vanilla logic
and instead just capture all their drops in the method they all call to
spawn them into the world. We also move horse inventory dropping so it
happens at a time when we're capturing these drops. With these changes
all items mobs drop on death should now be included in the event and
we have less diff to worry about for future updates.
This commit is contained in:
Travis Watkins
2014-05-26 02:17:53 -05:00
parent 4ab4fa5bb1
commit e080bafa58
23 changed files with 120 additions and 689 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
src/main/java/net/minecraft/server/EntityInsentient.java
View File

@@ -6,7 +6,6 @@ import java.util.UUID;
// CraftBukkit start
import org.bukkit.craftbukkit.event.CraftEventFactory;
import org.bukkit.craftbukkit.inventory.CraftItemStack;
import org.bukkit.event.entity.EntityUnleashEvent;
import org.bukkit.event.entity.EntityUnleashEvent.UnleashReason;
// CraftBukkit end
@@ -172,8 +171,6 @@ public abstract class EntityInsentient extends EntityLiving {
}
protected void dropDeathLoot(boolean flag, int i) {
// CraftBukkit start - Whole method
List<org.bukkit.inventory.ItemStack> loot = new java.util.ArrayList<org.bukkit.inventory.ItemStack>();
Item item = this.getLoot();
if (item != null) {
@@ -183,32 +180,10 @@ public abstract class EntityInsentient extends EntityLiving {
j += this.random.nextInt(i + 1);
}
if (j > 0) {
loot.add(new org.bukkit.inventory.ItemStack(org.bukkit.craftbukkit.util.CraftMagicNumbers.getMaterial(item), j));
for (int k = 0; k < j; ++k) {
this.a(item, 1);
}
}
// Determine rare item drops and add them to the loot
if (this.lastDamageByPlayerTime > 0) {
int k = this.random.nextInt(200) - i;
if (k < 5) {
ItemStack itemstack = this.getRareDrop(k <= 0 ? 1 : 0);
if (itemstack != null) {
loot.add(CraftItemStack.asCraftMirror(itemstack));
}
}
}
// Include equipment
for (ItemStack stack : this.dropEquipment(this.lastDamageByPlayerTime > 0, i)) {
if (stack != null) {
loot.add(CraftItemStack.asCraftMirror(stack));
}
}
CraftEventFactory.callEntityDeathEvent(this, loot); // raise event even for those times when the entity does not drop loot
// CraftBukkit end
}
public void b(NBTTagCompound nbttagcompound) {
@@ -573,10 +548,7 @@ public abstract class EntityInsentient extends EntityLiving {
return this.equipment;
}
// CraftBukkit start - return array of dropped items
protected ItemStack[] dropEquipment(boolean flag, int i) {
ItemStack[] dropped = new ItemStack[this.equipment.length];
// CraftBukkit end
protected void dropEquipment(boolean flag, int i) {
for (int j = 0; j < this.getEquipment().length; ++j) {
ItemStack itemstack = this.getEquipment(j);
boolean flag1 = this.dropChances[j] > 1.0F;
@@ -597,13 +569,9 @@ public abstract class EntityInsentient extends EntityLiving {
itemstack.setData(l);
}
// CraftBukkit start
// this.a(itemstack, 0.0F);
dropped[j] = itemstack;
// CraftBukkit end
this.a(itemstack, 0.0F);
}
}
return dropped; // CraftBukkit
}
protected void bC() {