org.saltosion.pixelprophecy.systems.MovementSystem.java Source code

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Here is the source code for org.saltosion.pixelprophecy.systems.MovementSystem.java

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/*
 * Copyright (C) 2016 Saltosion
 *
 * This program 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.
 *
 * This program 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
 * GNUss General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.saltosion.pixelprophecy.systems;

import com.badlogic.ashley.core.ComponentMapper;
import com.badlogic.ashley.core.Entity;
import com.badlogic.ashley.core.Family;
import com.badlogic.ashley.systems.IteratingSystem;
import com.badlogic.gdx.math.Vector2;
import org.saltosion.pixelprophecy.Comp;

public class MovementSystem extends IteratingSystem {

    private ComponentMapper<Comp.Physics> pm = ComponentMapper.getFor(Comp.Physics.class);

    public MovementSystem() {
        super(Family.all(Comp.Physics.class).get());
    }

    @Override
    protected void processEntity(Entity entity, float deltaTime) {
        Comp.Physics physics = pm.get(entity);
        Vector2 dir = physics.destination.cpy().nor();
        physics.body.setLinearVelocity(dir.scl(physics.speed));
    }
}