org.matheusdev.ror.controller.component.ComponentMovement.java Source code

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Here is the source code for org.matheusdev.ror.controller.component.ComponentMovement.java

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/*
 * Copyright (c) 2013 matheusdev
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.matheusdev.ror.controller.component;

import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.physics.box2d.Body;
import org.matheusdev.ror.model.entity.Entity;
import org.matheusdev.util.Dir;

/**
 * @author matheusdev
 *
 */
public class ComponentMovement extends Component {

    private boolean moving;
    private int direction;

    private float strength;
    private float maxspeed;
    private float friction;
    private float xsteer;
    private float ysteer;

    public ComponentMovement(int startDir) {
        this.direction = startDir;
    }

    public void set(float strength, float maxspeed, float friction, float xsteer, float ysteer) {
        this.strength = strength;
        this.maxspeed = maxspeed;
        this.friction = friction;
        this.xsteer = xsteer;
        this.ysteer = ysteer;
    }

    public void set(float strength, float maxspeed, float friction) {
        this.strength = strength;
        this.maxspeed = maxspeed;
        this.friction = friction;
    }

    public void setSteer(float xsteer, float ysteer) {
        this.xsteer = xsteer;
        this.ysteer = ysteer;
    }

    public void setSteer(float strength, float xsteer, float ysteer) {
        this.strength = strength;
        this.xsteer = xsteer;
        this.ysteer = ysteer;
    }

    public void setMaxspeed(float maxspeed) {
        this.maxspeed = maxspeed;
    }

    public void setStrength(float strength) {
        this.strength = strength;
    }

    public void setFriction(float friction) {
        this.friction = friction;
    }

    @Override
    public void apply(Entity entity) {
        Body body = entity.getBody();
        moving = false;

        // If trying to move (pressing buttons on Keyboard, steering with Gamepad)
        if (xsteer != 0f || ysteer != 0f) {
            moving = true;

            if (Math.abs(xsteer) > Math.abs(ysteer)) {
                if (xsteer < 0) {
                    direction = Dir.LEFT;
                } else {
                    direction = Dir.RIGHT;
                }
            } else {
                if (ysteer < 0) {
                    direction = Dir.DOWN;
                } else {
                    direction = Dir.UP;
                }
            }
        }

        Vector2 linVel = body.getLinearVelocity();
        if (linVel.len() > maxspeed) {
            body.setLinearVelocity(linVel.cpy().nor().scl(maxspeed));
        }

        body.applyForceToCenter(strength * xsteer, strength * ysteer);

        if (friction > 1f && !moving) {
            body.setLinearVelocity(linVel.div(friction));
        }
    }

    public boolean isMoving() {
        return moving;
    }

    public int getDirection() {
        return direction;
    }

}