C# 三维壁面滑移碰撞

在我的游戏中，我正在处理墙壁的碰撞问题，而我目前的处理方式是，我被困在墙壁上。我试图让我的角色在墙上滑动，但仍然会发生碰撞

我的角色从我使用他所面对的角度创建的向量中移出

这是我的碰撞功能：

    private static bool CheckForCollisions(ref Crate c1, ref Player c2,bool direction)
    {
        for (int i = 0; i < c1.model.Meshes.Count; i++)
        {
            // Check whether the bounding boxes of the two cubes intersect.
            BoundingSphere c1BoundingSphere = c1.model.Meshes[i].BoundingSphere;
            c1BoundingSphere.Center += c1.position + new Vector3(2, 0, 2);
            c1BoundingSphere.Radius = c1BoundingSphere.Radius / 1.5f;

            for (int j = 0; j < c2.model.Meshes.Count; j++)
            {
                BoundingSphere c2BoundingSphere = c2.model.Meshes[j].BoundingSphere;
                if (direction)
                    c2BoundingSphere.Center += c2.position + new Vector3(c2.getPlannedDirection().X, 0, 0);
                else if (!direction)
                    c2BoundingSphere.Center += c2.position + new Vector3(0, 0, c2.getPlannedDirection().Y);
                //c2BoundingSphere.Center += c2.position;

                if (c1BoundingSphere.Intersects(c2BoundingSphere))
                {
                    return true;
                }
            }
        }
        return false;
    }

private static bool CheckForCollisions（参考框c1，参考玩家c2，bool方向）
{
对于（int i=0；i

这是我的更新：

for (int x = 0; x <= 29; x++)
        {
            for (int y = 0; y <= 29; y++)
            {
                if (crate[x, y].getType() == 11 && collisionEnabled)
                { 
                    if (CheckForCollisions(ref crate[x, y], ref player,true))
                    {
                        player.clearPlannedDirectionX();
                        //Console.Write(player.getPosition().X + "," + player.getPosition().Y + "," + player.getPosition().Z);
                        //movePlayer = false;
                    }
                    if (CheckForCollisions(ref crate[x, y], ref player,false))
                    {
                        player.clearPlannedDirectionZ();
                        //Console.Write(player.getPosition().X + "," + player.getPosition().Y + "," + player.getPosition().Z);
                        //movePlayer = false;
                    }
                }
            }
        }

---

for（intx=0；x这看起来应该在gamedev堆栈交换上，我建议切换到光线测试而不是sphere

无论如何，如果你与基于球体的系统结婚，你可以将玩家“推”出墙：

private static bool CorrectCollisions(ref Crate c1, ref Player c2)
{
    for (int i = 0; i < c1.model.Meshes.Count; i++)
    {
        // Check whether the bounding boxes of the two cubes intersect.
        BoundingSphere c1BoundingSphere = c1.model.Meshes[i].BoundingSphere;

        c1BoundingSphere.Center += c1.position + new Vector3(2, 0, 2);
        c1BoundingSphere.Radius = c1BoundingSphere.Radius / 1.5f;

        for (int j = 0; j < c2.model.Meshes.Count; j++)
        {
            BoundingSphere c2BoundingSphere = c2.model.Meshes[j].BoundingSphere;
            c2BoundingSphere.Center += c2.position;

            Vector3 dir=c2BoundingSphere.Center - c1BoundingSphere.Center;
            float center_dist_sq=dir.dot(dir);
            float min_dist=c2BoundingSphere.Radius+c1BoundingSphere.Radius;
            if (center_dist_sq < min_dist*min_dist) {
                    dir.normalize();
                    c2.position += dir*(min_dist-sqrt(center_dist_sq));
            }
        }
    }
    return false;
} 

private static bool corrector碰撞（参考板条箱c1，参考玩家c2）
{
对于（int i=0；i

然后，您的更新看起来更像：

for (int x = 0; x <= 29; x++) {
    for (int y = 0; y <= 29; y++) {
        if (crate[x, y].getType() == 11 && collisionEnabled) {
            CorrectCollisions(ref crate[x, y], ref player);
        }
    }
}

for（int x=0；x您在第一个代码中使用了getPlannedDirection（）.x和getPlannedDirection（）.Y，但您使用的是clearPlannedDirectionX（）和clearPlannedDirectionZ（）第二种情况是，如果它在z轴上发生碰撞，那么它会阻止它发生。与x轴相同。这都是在播放器更新其位置之前运行的。这就是为什么它被称为“PlannedDirection”，抱歉，我应该在我的问题中澄清这一点。c2.position+=（c2BoundingSphere.Center-c1BoundingSphere.Center）-（c2BoundingSphere.Radius-c1BoundingSphere.Radius）；"无法将Vector3转换为浮点。第二个减号应该是逗号吗？哎呀，对不起，我应该想到这一点。这是因为我在1D中设计了这个想法。我编辑了这个示例来演示如何在3D中提取方向向量。我还结合了球体交点，因为数学重叠，所以没有必要重复两次。在这一行：浮点c输入_dist_sq=dir.dot（dir）；一个点积不需要两个矢量吗？@bbdude95：是的，它们是“dir”和“dir”，注意这个变量叫做中心距离平方。我最初写的是=dot（dir，dir）但是我意识到你的框架看起来是面向对象的。我尝试在JavaScript中实现类似的东西，没有任何向量库，你知道如何解决这个问题吗？