/*
* 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.entity.Entity;
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.doc.Description;
import ch.njol.skript.doc.Examples;
import ch.njol.skript.doc.Name;
import ch.njol.skript.doc.Since;
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("Push")
@Description("Push entities around.")
@Examples({"push the player upwards",
"push the victim downwards at speed 0.5"})
@Since("1.4.6")
public class EffPush extends Effect {
static {
Skript.registerEffect(EffPush.class, "(push|thrust) %entities% %direction% [(at|with) (speed|velocity|force) %-number%]");
}
@SuppressWarnings("null")
private Expression<Entity> entities;
@SuppressWarnings("null")
private Expression<Direction> direction;
@Nullable
private Expression<Number> speed = null;
@SuppressWarnings({"unchecked", "null"})
@Override
public boolean init(final Expression<?>[] exprs, final int matchedPattern, final Kleenean isDelayed, final ParseResult parseResult) {
entities = (Expression<Entity>) exprs[0];
direction = (Expression<Direction>) exprs[1];
speed = (Expression<Number>) exprs[2];
return true;
}
@Override
protected void execute(final Event e) {
final Direction d = direction.getSingle(e);
if (d == null)
return;
final Number v = speed != null ? speed.getSingle(e) : null;
if (speed != null && v == null)
return;
final Entity[] ents = entities.getArray(e);
for (final Entity en : ents) {
assert en != null;
final Vector mod = d.getDirection(en);
if (v != null)
mod.normalize().multiply(v.doubleValue());
en.setVelocity(en.getVelocity().add(mod)); // REMIND add NoCheatPlus exception to players
}
}
@Override
public String toString(final @Nullable Event e, final boolean debug) {
return "push " + entities.toString(e, debug) + " " + direction.toString(e, debug) + (speed != null ? " at speed " + speed.toString(e, debug) : "");
}
}