Question

我正在制作自上而下的RPG。我几乎已经完成了移动系统，但是我似乎无法弄清楚如何检测玩家是否有瓷砖挡住了玩家。我的tmx文件中有两个对象层，播放器应在任何地图上与之交互：NPC层和碰撞层。我尝试过NPC是图块对象（以RectangleMapObjects的形式出现），通常高1.5个图块，而碰撞对象是多边形，我也有一些图块，我只想从一侧访问，所以我需要知道是否碰撞中取决于方向的三个独立点。几个小时后，这就是我所拥有的：

public boolean canWalk(float xc, float yc, String dir)
{
    int i = 0;
    while (true)
    {
        try
        {
            RectangleMapObject temp = (RectangleMapObject) ents.get(i);
            if (!temp.equals(player))
            {
                if (dir.equals("s"))
                {
                    float cy = ((y) * 16) - 2;
                    float cx = ((x) * 16) + 2;
                    return !(temp.getRectangle().contains(cx + 6, cy + 8));
                }
                else if (dir.equals("n"))
                {
                    float cy = ((y + 1) * 16) + 2;
                    float cx = ((x) * 16) + 2;
                    return !(temp.getRectangle().contains(cx, cy) && temp.getRectangle().contains(cx + 6, cy) && temp.getRectangle().contains(cx + 12, cy));
                }
                else if (dir.equals("e"))
                {
                    float cy = ((y) * 16) + 2;
                    float cx = ((x + 1) * 16) + 2;
                    return !(temp.getRectangle().contains(cx, cy) && temp.getRectangle().contains(cx, cy + 6) && temp.getRectangle().contains(cx, cy + 12));
                }
                else if (dir.equals("w"))
                {
                    float cy = ((y) * 16) + 2;
                    float cx = ((x) * 16) - 2;
                    return !(temp.getRectangle().contains(cx, cy) && temp.getRectangle().contains(cx, cy + 6) && temp.getRectangle().contains(cx, cy + 12));
                }
            }
        }
        catch (IndexOutOfBoundsException e)
        {
            break;
        }
        i++;
    }
    versionid = "" + i + ",";
    i = 0;
    while (true)
    {
        try
        {
            PolygonMapObject temp = (PolygonMapObject) cols.get(i);
            if (dir.equals("s"))
            {
                float cy = ((y) * 16) - 2;
                float cx = ((x) * 16) + 2;
                return !(temp.getPolygon().contains(cx, cy) && temp.getPolygon().contains(cx + 6, cy) && temp.getPolygon().contains(cx + 12, cy));
            }
            else if (dir.equals("n"))
            {
                float cy = ((y + 1) * 16) + 2;
                float cx = ((x) * 16) + 2;
                return !(temp.getPolygon().contains(cx, cy) && temp.getPolygon().contains(cx + 6, cy) && temp.getPolygon().contains(cx + 12, cy));
            }
            else if (dir.equals("e"))
            {
                float cy = ((y) * 16) + 2;
                float cx = ((x + 1) * 16) + 2;
                return !(temp.getPolygon().contains(cx, cy) && temp.getPolygon().contains(cx, cy + 6) && temp.getPolygon().contains(cx, cy + 12));
            }
            else if (dir.equals("w"))
            {
                float cy = ((y) * 16) + 2;
                float cx = ((x) * 16) - 2;
                return !(temp.getPolygon().contains(cx, cy) && temp.getPolygon().contains(cx, cy + 6) && temp.getPolygon().contains(cx, cy + 12));
            }
        }
        catch (IndexOutOfBoundsException e)
        {
            break;
        }
        i++;
    }
    versionid = versionid + i;
    return true;
}

它总是返回true

解决了我自己的愚蠢错误，每张支票都有保证的退货，而不是仅在必要时退货

Answer 1

我发现这里是任何人想要的功能代码

public boolean canWalk(String dir)
{
    int i = 0;
    while (true)
    {
        try
        {
            RectangleMapObject temp = (RectangleMapObject) ents.get(i);
            if (!temp.equals(player))
            {
                if (dir.equals("s"))
                {
                    float cy = ((y) * 16) - 2;
                    float cx = ((x) * 16) + 2;
                    if (temp.getRectangle().contains(cx + 6, cy + 8))
                    {
                        return false;
                    }
                }
                else if (dir.equals("n"))
                {
                    float cy = ((y + 1) * 16) + 2;
                    float cx = ((x) * 16) + 2;
                    if (temp.getRectangle().contains(cx, cy) && temp.getRectangle().contains(cx + 6, cy) && temp.getRectangle().contains(cx + 12, cy))
                    {
                        return false;
                    }
                }
                else if (dir.equals("e"))
                {
                    float cy = ((y) * 16) + 2;
                    float cx = ((x + 1) * 16) + 2;
                    if (temp.getRectangle().contains(cx, cy) && temp.getRectangle().contains(cx, cy + 6) && temp.getRectangle().contains(cx, cy + 12))
                    {
                        return false;
                    }
                }
                else if (dir.equals("w"))
                {
                    float cy = ((y) * 16) + 2;
                    float cx = ((x) * 16) - 2;
                    if (temp.getRectangle().contains(cx, cy) && temp.getRectangle().contains(cx, cy + 6) && temp.getRectangle().contains(cx, cy + 12))
                    {
                        return false;
                    }
                }
            }
        }
        catch (IndexOutOfBoundsException e)
        {
            break;
        }
        i++;
    }
    i = 0;
    while (true)
    {
        try
        {
            PolygonMapObject temp = (PolygonMapObject) cols.get(i);
            if (dir.equals("s"))
            {
                float cy = ((y) * 16) - 2;
                float cx = ((x) * 16) + 2;
                if (temp.getPolygon().contains(cx, cy) && temp.getPolygon().contains(cx + 6, cy) && temp.getPolygon().contains(cx + 12, cy))
                {
                    return false;
                }
            }
            else if (dir.equals("n"))
            {
                float cy = ((y + 1) * 16) + 2;
                float cx = ((x) * 16) + 2;
                if (temp.getPolygon().contains(cx, cy) && temp.getPolygon().contains(cx + 6, cy) && temp.getPolygon().contains(cx + 12, cy))
                {
                    return false;
                }
            }
            else if (dir.equals("e"))
            {
                float cy = ((y) * 16) + 2;
                float cx = ((x + 1) * 16) + 2;
                if (temp.getPolygon().contains(cx, cy) && temp.getPolygon().contains(cx, cy + 6) && temp.getPolygon().contains(cx, cy + 12))
                {
                    return false;
                }
            }
            else if (dir.equals("w"))
            {
                float cy = ((y) * 16) + 2;
                float cx = ((x) * 16) - 2;
                if (temp.getPolygon().contains(cx, cy) && temp.getPolygon().contains(cx, cy + 6) && temp.getPolygon().contains(cx, cy + 12))
                {
                    return false;
                }
            }
        }
        catch (IndexOutOfBoundsException e)
        {
            break;
        }
        i++;
    }
    return true;
}

请注意，我回答了此问题以将其关闭

libgdx碰撞麻烦

1 个答案: