com.shatteredpixel.shatteredpixeldungeon.effects.Halo.java Source code

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Here is the source code for com.shatteredpixel.shatteredpixeldungeon.effects.Halo.java

Source

/*
 * Pixel Dungeon
 * Copyright (C) 2012-2014  Oleg Dolya
 *
 * 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
 * GNU 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 com.shatteredpixel.shatteredpixeldungeon.effects;

import com.badlogic.gdx.graphics.Pixmap;
import com.watabou.gdx.GdxTexture;
import com.watabou.gltextures.SmartTexture;
import com.watabou.gltextures.TextureCache;
import com.watabou.noosa.Image;

public class Halo extends Image {

    private static final Object CACHE_KEY = Halo.class;

    protected static final int RADIUS = 64;

    protected float radius = RADIUS;
    protected float brightness = 1;

    public Halo() {
        super();

        if (!TextureCache.contains(CACHE_KEY)) {
            Pixmap pixmap = new Pixmap(RADIUS * 2, RADIUS * 2, Pixmap.Format.RGBA8888);
            pixmap.setColor(0xFFFFFFFF);
            pixmap.fillCircle(RADIUS, RADIUS, (int) (RADIUS * 0.75f));
            pixmap.setColor(0xFFFFFF88);
            pixmap.fillCircle(RADIUS, RADIUS, RADIUS);
            GdxTexture bmp = new GdxTexture(pixmap);
            TextureCache.add(CACHE_KEY, new SmartTexture(bmp));
        }

        texture(CACHE_KEY);

        origin.set(RADIUS);
    }

    public Halo(float radius, int color, float brightness) {

        this();

        hardlight(color);
        alpha(this.brightness = brightness);
        radius(radius);
    }

    public Halo point(float x, float y) {
        this.x = x - RADIUS;
        this.y = y - RADIUS;
        return this;
    }

    public void radius(float value) {
        scale.set((this.radius = value) / RADIUS);
    }
}