com.google.gwt.maeglin89273.shared.test.volcanogame.component.Volcano.java Source code

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Here is the source code for com.google.gwt.maeglin89273.shared.test.volcanogame.component.Volcano.java

Source

/**
 * 
 */
package com.google.gwt.maeglin89273.shared.test.volcanogame.component;

import org.jbox2d.collision.shapes.PolygonShape;
import org.jbox2d.common.Vec2;
import org.jbox2d.dynamics.Body;
import org.jbox2d.dynamics.BodyDef;

import com.google.gwt.canvas.dom.client.Context2d;
import com.google.gwt.maeglin89273.game.mengine.component.GeneralComponent;
import com.google.gwt.maeglin89273.game.mengine.component.Physical;
import com.google.gwt.maeglin89273.game.mengine.component.Spacial;
import com.google.gwt.maeglin89273.game.mengine.core.MEngine;
import com.google.gwt.maeglin89273.game.mengine.physics.PixelAABB;
import com.google.gwt.maeglin89273.game.mengine.physics.Point;
import com.google.gwt.maeglin89273.game.mengine.physics.Vector;
import com.google.gwt.maeglin89273.game.mengine.sprite.SpriteSheet;
import com.google.gwt.maeglin89273.game.mengine.utility.CoordinateConverter;

/**
 * @author Maeglin Liao
 *
 */
public class Volcano extends GeneralComponent implements Physical {
    public static final int CRATER_WIDTH = 70;
    private final PixelAABB aabb;
    private Body body;
    private Spacial space;
    private SpriteSheet image;

    /* (non-Javadoc)
     * @see com.google.gwt.maeglin89273.game.mengine.utility.component.Physical#getBody()
     */
    public Volcano(Spacial space, Point p) {
        super(p, 500, 150);

        this.space = space;
        this.image = MEngine.getAssetManager().getSpriteSheet("volcano.png");

        BodyDef bodyDef = new BodyDef();
        bodyDef.position.set(CoordinateConverter.coordPixelsToWorld(p));
        PolygonShape shape = new PolygonShape();
        Vec2[] vertices = { CoordinateConverter.vectorPixelsToWorld(new Vector(-250, 75)),
                CoordinateConverter.vectorPixelsToWorld(new Vector(250, 75)),
                CoordinateConverter.vectorPixelsToWorld(new Vector(CRATER_WIDTH / 2, -75)),
                CoordinateConverter.vectorPixelsToWorld(new Vector(-CRATER_WIDTH / 2, -75)),

        };

        body = space.getWorld().createBody(bodyDef);

        shape.set(vertices, vertices.length);

        aabb = CoordinateConverter.transformAABB(body.createFixture(shape, 0f).getAABB());
    }

    @Override
    public Body getBody() {

        return body;
    }

    /* (non-Javadoc)
     * @see com.google.gwt.maeglin89273.game.mengine.utility.component.GeneralComponent#update()
     */
    @Override
    public void update() {
        // TODO Auto-generated method stub

    }

    /* (non-Javadoc)
     * @see com.google.gwt.maeglin89273.game.mengine.utility.component.GeneralComponent#draw(com.google.gwt.canvas.dom.client.Context2d)
     */
    public Point getLeftCraterPoint() {
        return new Point(position.getX() - CRATER_WIDTH / 2, getTopY());
    }

    public Point getRightCraterPoint() {
        return new Point(position.getX() + CRATER_WIDTH / 2, getTopY());
    }

    @Override
    public void draw(Context2d context) {
        Point p = getPositionAt(PositionType.NORTHWEST);

        context.save();
        /*context.setShadowOffsetY(1);
        context.setShadowOffsetX(4);
        context.setShadowBlur(25);
        context.setShadowColor("hsla(22.5,50%,5%,0.3)");
        context.setShadowColor("rgba(0,0,0,0.2)");*/
        context.drawImage(image.getImage(), p.getX(), p.getY() - 17, width, height + 17);
        context.restore();

    }

    @Override
    public Spacial getSpace() {

        return space;
    }

    @Override
    public void destory() {
        space.remove(this);
        body = null;

    }

    @Override
    public PixelAABB getAABB() {

        return aabb;
    }

}