advancespritegroup.java

一个java的免费游戏引擎,里面有文档,和例子

// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi 

package com.golden.gamedev.object;

import java.awt.Graphics2D;
import java.awt.Insets;
import java.util.Comparator;

// Referenced classes of package com.golden.gamedev.object:
//            SpriteGroup, Sprite, Timer, Background

public class AdvanceSpriteGroup extends SpriteGroup
{

    protected SpriteGroup ONSCREEN_GROUP;
    private Insets b;

    public AdvanceSpriteGroup(String s, int i, int j, int k, int l)
    {
        super(s);
        b = new Insets(i, j, k, l);
        ONSCREEN_GROUP = new SpriteGroup(s + " #ONSCREEN");
        ONSCREEN_GROUP.setExpandFactor(50);
        ONSCREEN_GROUP.getScanFrequence().setActive(false);
    }

    public AdvanceSpriteGroup(String s, int i)
    {
        this(s, i, i, i, i);
    }

    public AdvanceSpriteGroup(String s)
    {
        this(s, 0);
    }

    public void update(long l)
    {
        ONSCREEN_GROUP.clear();
        Sprite asprite[] = getGroupSprites();
        int i = getGroupSize();
        for(int j = 0; j < i; j++)
            if(asprite[j].isActive() && asprite[j].isOnScreen(b.left, b.top, b.right, b.bottom))
                ONSCREEN_GROUP.add(asprite[j]);

        ONSCREEN_GROUP.update(l);
        if(getScanFrequence().action(l))
            removeInactiveSprites();
    }

    public void render(Graphics2D graphics2d)
    {
        ONSCREEN_GROUP.render(graphics2d);
    }

    public void setBackground(Background background)
    {
        super.setBackground(background);
        ONSCREEN_GROUP.setBackground(background);
    }

    public void setComparator(Comparator comparator)
    {
        super.setComparator(comparator);
        ONSCREEN_GROUP.setComparator(comparator);
    }

    public Insets getScreenOffset()
    {
        return b;
    }

    public Sprite[] getSprites()
    {
        return ONSCREEN_GROUP.getSprites();
    }

    public int getSize()
    {
        return ONSCREEN_GROUP.getSize();
    }

    public Sprite[] getGroupSprites()
    {
        return super.getSprites();
    }

    public int getGroupSize()
    {
        return super.getSize();
    }
}