Libgdx碰撞麻烦

Question

我正在制作自上而下的角色扮演游戏。我几乎已经完成了移动系统，但我似乎无法弄清楚如何检测玩家是否应该阻挡玩家。我的 tmx 文件中有两个对象层，玩家应该在任何地图上与之交互：NPC 层和碰撞层。我试过 NPC 是瓦片对象（作为 RectangleMapObjects 出现）并且通常有 1.5 个瓦片高，碰撞对象是多边形，我还有一些瓦片我只想从一侧访问，因此我需要知道是否取决于方向的三个独立点在碰撞内。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return是真的

解决了我自己的问题愚蠢错误每张支票都有保证 return 而不是仅在必要时 returning

Answer 1

我发现这里是功能代码，供任何需要的人使用

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，我回答这个问题是为了关闭它

Libgdx碰撞麻烦

Libgdx collision trouble

java

android

collision-detection

libgdx