/*
* This file is part of Skript.
*
* Skript is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Skript is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Skript. If not, see <http://www.gnu.org/licenses/>.
*
*
* Copyright 2011-2014 Peter Güttinger
*
*/
package ch.njol.skript.effects;
import org.bukkit.Location;
import org.bukkit.entity.Entity;
import org.bukkit.entity.Fireball;
import org.bukkit.entity.LivingEntity;
import org.bukkit.entity.Projectile;
import org.bukkit.event.Event;
import org.bukkit.util.Vector;
import org.eclipse.jdt.annotation.Nullable;
import ch.njol.skript.Skript;
import ch.njol.skript.bukkitutil.ProjectileUtils;
import ch.njol.skript.doc.Description;
import ch.njol.skript.doc.Examples;
import ch.njol.skript.doc.Name;
import ch.njol.skript.doc.Since;
import ch.njol.skript.entity.EntityData;
import ch.njol.skript.lang.Effect;
import ch.njol.skript.lang.Expression;
import ch.njol.skript.lang.SkriptParser.ParseResult;
import ch.njol.skript.util.Direction;
import ch.njol.util.Kleenean;
/**
* @author Peter Güttinger
*/
@Name("Shoot")
@Description("Shoots a projectile (or any other entity) from a given entity.")
@Examples({"shoot an arrow",
"make the player shoot a creeper at speed 10",
"shoot a pig from the creeper"})
@Since("1.4")
public class EffShoot extends Effect {
static {
Skript.registerEffect(EffShoot.class,
"shoot %entitydatas% [from %livingentities/locations%] [(at|with) (speed|velocity) %-number%] [%-direction%]",
"(make|let) %livingentities/locations% shoot %entitydatas% [(at|with) (speed|velocity) %-number%] [%-direction%]");
}
private final static Double DEFAULT_SPEED = 5.;
@SuppressWarnings("null")
private Expression<EntityData<?>> types;
@SuppressWarnings("null")
private Expression<?> shooters;
@Nullable
private Expression<Number> velocity;
@Nullable
private Expression<Direction> direction;
@Nullable
public static Entity lastSpawned = null;
@SuppressWarnings({"unchecked", "null"})
@Override
public boolean init(final Expression<?>[] exprs, final int matchedPattern, final Kleenean isDelayed, final ParseResult parseResult) {
types = (Expression<EntityData<?>>) exprs[matchedPattern];
shooters = exprs[1 - matchedPattern];
velocity = (Expression<Number>) exprs[2];
direction = (Expression<Direction>) exprs[3];
return true;
}
@SuppressWarnings("null")
@Override
protected void execute(final Event e) {
lastSpawned = null;
final Number v = velocity != null ? velocity.getSingle(e) : DEFAULT_SPEED;
if (v == null)
return;
final Direction dir = direction != null ? direction.getSingle(e) : Direction.IDENTITY;
if (dir == null)
return;
for (final Object shooter : shooters.getArray(e)) {
for (final EntityData<?> d : types.getArray(e)) {
if (shooter instanceof LivingEntity) {
final Vector vel = dir.getDirection(((LivingEntity) shooter).getLocation()).multiply(v.doubleValue());
if (Fireball.class.isAssignableFrom(d.getType())) {// fireballs explode in the shooter's face by default
final Fireball projectile = (Fireball) ((LivingEntity) shooter).getWorld().spawn(((LivingEntity) shooter).getEyeLocation().add(vel.clone().normalize().multiply(0.5)), d.getType());
ProjectileUtils.setShooter(projectile, shooter);
projectile.setVelocity(vel);
lastSpawned = projectile;
} else if (Projectile.class.isAssignableFrom(d.getType())) {
final Projectile projectile = ((LivingEntity) shooter).launchProjectile((Class<? extends Projectile>) d.getType());
set(projectile, d);
projectile.setVelocity(vel);
lastSpawned = projectile;
} else {
final Location loc = ((LivingEntity) shooter).getLocation();
loc.setY(loc.getY() + ((LivingEntity) shooter).getEyeHeight() / 2);
final Entity projectile = d.spawn(loc);
if (projectile != null)
projectile.setVelocity(vel);
lastSpawned = projectile;
}
} else {
final Vector vel = dir.getDirection((Location) shooter).multiply(v.doubleValue());
final Entity projectile = d.spawn((Location) shooter);
if (projectile != null)
projectile.setVelocity(vel);
lastSpawned = projectile;
}
}
}
}
@SuppressWarnings("unchecked")
private final static <E extends Entity> void set(final Entity e, final EntityData<E> d) {
d.set((E) e);
}
@Override
public String toString(final @Nullable Event e, final boolean debug) {
return "shoot " + types.toString(e, debug) + " from " + shooters.toString(e, debug) + (velocity != null ? " at speed " + velocity.toString(e, debug) : "") + (direction != null ? " " + direction.toString(e, debug) : "");
}
}