paper-mc/src/main/java/net/minecraft/server/EntityLargeFireball.java

package net.minecraft.server;

import org.bukkit.event.entity.ExplosionPrimeEvent; // CraftBukkit

public class EntityLargeFireball extends EntityFireball {

    public int yield = 1;

    public EntityLargeFireball(World world) {
        super(world);
    }

    public EntityLargeFireball(World world, EntityLiving entityliving, double d0, double d1, double d2) {
        super(world, entityliving, d0, d1, d2);
    }

    protected void a(MovingObjectPosition movingobjectposition) {
        if (!this.world.isStatic) {
            if (movingobjectposition.entity != null) {
                movingobjectposition.entity.damageEntity(DamageSource.fireball(this, this.shooter), 6.0F);
            }

            // CraftBukkit start - fire ExplosionPrimeEvent
            ExplosionPrimeEvent event = new ExplosionPrimeEvent((org.bukkit.entity.Explosive) org.bukkit.craftbukkit.entity.CraftEntity.getEntity(this.world.getServer(), this));
            this.world.getServer().getPluginManager().callEvent(event);

            if (!event.isCancelled()) {
                // give 'this' instead of (Entity) null so we know what causes the damage
                this.world.createExplosion(this, this.locX, this.locY, this.locZ, event.getRadius(), event.getFire(), this.world.getGameRules().getBoolean("mobGriefing"));
            }
            // CraftBukkit end

            this.die();
        }
    }

    public void b(NBTTagCompound nbttagcompound) {
        super.b(nbttagcompound);
        nbttagcompound.setInt("ExplosionPower", this.yield);
    }

    public void a(NBTTagCompound nbttagcompound) {
        super.a(nbttagcompound);
        if (nbttagcompound.hasKeyOfType("ExplosionPower", 99)) {
            // CraftBukkit - set bukkitYield when setting explosionpower
            this.bukkitYield = this.yield = nbttagcompound.getInt("ExplosionPower");
        }
    }
}