Question

我正在制作乒乓球，并且在其他物体内部玩家身体隧道存在问题使用SetLinearVelocity移动时。

除了隧道之外，我的碰撞工作得很好。玩家在里面或甚至通过隧道顶墙和底墙。玩家是一个充满活力的身体，墙壁是静止的身体。

这是我的播放器鼠标移动代码：

Vec2 playerVelocity = new Vec2();
float mousePosY = Mouse.GetPosition(window).Y / PixelsToMeter;
float playerPosY = this.Body.GetPosition().Y;

// Player collides with wall
if (this.collisionWithWall)
{
    playerVelocity.Y = 0;
}
else
{
    if (mousePosY - playerPosY > 0.01f || mousePosY - playerPosY < -0.01f)
    {
        // I have a fixed timestep of 1 / 60, so 
        // multiplying by 60 makes the movement smooth.
        // This also means that the velocity is very high.
        playerVelocity.Y = (mousePosY - playerPosY) * 60;
    }
    else if (mousePosY - playerPosY == 0)
    {
        playerVelocity.Y = 0;
    }
}
this.playerBody.SetLinearVelocity(playerVelocity);

播放器由3个形状定义组成，如下所示：

// Define new shape definitions
this.rightShape = new PolygonDef() { UserData = "side", IsSensor = true, Density = 1.0f };
// (4px, 124px) fixture at (player.body: 22, 2)
this.rightShape.SetAsBox(2f / PixelsToMeter, (HalfHeight - 2) / PixelsToMeter, new Vec2(10 / PixelsToMeter, 2 / PixelsToMeter), 0);

this.topShape = new PolygonDef() { UserData = "top", IsSensor = true, Density = 1.0f };
// (24px, 4px) fixture at (player.body: 0, 0)
this.topShape.SetAsBox(HalfWidth / PixelsToMeter, 2 / PixelsToMeter, new Vec2(-12 / PixelsToMeter, -HalfHeight / PixelsToMeter), 0);

this.bottomShape = new PolygonDef() { UserData = "bottom", IsSensor = true, Density = 1.0f };
// (24px, 4px) fixture at (player.body: 0, 128)
this.bottomShape.SetAsBox(HalfWidth / PixelsToMeter, 2f / PixelsToMeter, new Vec2(-12 / PixelsToMeter, HalfHeight / PixelsToMeter), 0);

我已经将玩家身体设置为子弹，用于连续碰撞检测。

this.playerBody.SetBullet(true);

墙面形状定义：

// Define a new shape definition
this.wallPoly = new PolygonDef();
this.wallPoly.IsSensor = true;
this.wallPoly.SetAsBox(HalfWidth / PixelsToMeter, HalfHeight / PixelsToMeter);

我确认在移动身体时问题确实是高速度速度较慢时，碰撞效果很好，但逐渐设定速度后隧道越高越明显。在我移动鼠标的那一刻非常快速上升或下降，玩家穿过墙壁到达另一侧，没有停下来。

如何防止高速隧道掘进？

Box2DX：如何防止高速下的身体隧道？

0 个答案: