@SubscribeEvent
public void HandleEnchant(LivingAttackEvent fEvent) {
if (fEvent.source.damageType != "player" && fEvent.source.damageType != "mob") return;
if (!(fEvent.source.getSourceOfDamage() instanceof EntityLivingBase)) return;
EntityLivingBase attacker = (EntityLivingBase) fEvent.source.getSourceOfDamage();
if (attacker == null) return;
ItemStack dmgSource = ((EntityLivingBase) fEvent.source.getSourceOfDamage()).getHeldItem();
if (dmgSource == null) return;
if (EnchantmentHelper.getEnchantmentLevel(effectId, dmgSource) <= 0) return;
// We have a cleaving level, let's figure out our damage value.
float splashDamage =
fEvent.ammount * (EnchantmentHelper.getEnchantmentLevel(effectId, dmgSource) * 0.25F);
// Next, find our entities to hit.
AxisAlignedBB boundBox =
AxisAlignedBB.getBoundingBox(
attacker.posX - 5,
attacker.posY - 5,
attacker.posZ - 5,
attacker.posX + 5,
attacker.posY + 5,
attacker.posZ + 5);
@SuppressWarnings("unchecked")
ArrayList<Entity> targetEntities =
new ArrayList<Entity>(
attacker.worldObj.getEntitiesWithinAABBExcludingEntity(fEvent.entity, boundBox));
// Let's remove all the entries that aren't within range of our attacker
ListIterator<Entity> itr = targetEntities.listIterator();
while (itr.hasNext()) {
Entity target = itr.next();
if (!(target instanceof EntityLivingBase)) continue;
if (target == attacker) continue;
if (target.getDistanceToEntity(attacker) > 3.5F) continue;
Vec3 attackerCheck =
Vec3.createVectorHelper(
target.posX - attacker.posX,
target.posY - attacker.posY,
target.posZ - attacker.posZ);
double angle =
Math.toDegrees(Math.acos(attackerCheck.normalize().dotProduct(attacker.getLookVec())));
if (angle < 60.0D) {
// This is within our arc, let's deal our damage.
DamageSource source = null;
if (attacker instanceof EntityPlayer) source = new EntityDamageSource("player", attacker);
if (attacker instanceof EntityMob) source = new EntityDamageSource("mob", attacker);
if (source != null) {
target.attackEntityFrom(DamageSource.generic, splashDamage);
}
if (attacker instanceof EntityPlayer) {
// Apply knockback
int modKnockback = 1;
modKnockback +=
EnchantmentHelper.getKnockbackModifier(attacker, (EntityLivingBase) target);
if (attacker.isSprinting()) modKnockback++;
if (modKnockback > 0)
target.addVelocity(
(double)
(-MathHelper.sin(attacker.rotationYaw * (float) Math.PI / 180.0F)
* (float) modKnockback
* 0.5F),
0.1D,
(double)
(MathHelper.cos(attacker.rotationYaw * (float) Math.PI / 180.0F)
* (float) modKnockback
* 0.5F));
}
}
}
// Stop the player sprinting
attacker.setSprinting(false);
}
