我知道这个问题可能会被问到很多,对此我很抱歉。但是我在游戏中遇到了一段时间的碰撞问题,我需要一些帮助。
首先,该游戏是一款 2D 平台游戏。每个实体都放在一个列表中。我有这个用于碰撞检测的代码,对我来说非常有用:
if (player.rectangle.Intersects(rect))
{
player1Collision = true;
colSolid = solid;
colRectangle = rect;
}
if (player1Collision)
{
Vector2 pos = player.position;
Vector2 pLeft = new Vector2(player.BoundingBox.Left, 0);
Vector2 pRight = new Vector2(player.BoundingBox.Right, 0);
Vector2 pTop = new Vector2(0, player.BoundingBox.Top);
Vector2 pBottom = new Vector2(0, player.BoundingBox.Bottom);
Vector2 sLeft = new Vector2(colSolid.BoundingBox.Left, 0);
Vector2 sRight = new Vector2(colSolid.BoundingBox.Right, 0);
Vector2 sTop = new Vector2(0, colSolid.BoundingBox.Top);
Vector2 sBottom = new Vector2(0, colSolid.BoundingBox.Bottom);
if (player.rectangle.Intersects(colRectangle))
{
if (player.velocity.X > 0 && Vector2.Distance(pRight, sLeft) < player.texture.Width / 2)//left
{
player.velocity.X = 0f;
pos.X = colSolid.BoundingBox.Left - player.BoundingBox.Width;
}
else if (player.velocity.X < 0 && Vector2.Distance(pLeft, sRight) < player.texture.Width / 2)//right
{
player.velocity.X = 0f;
pos.X = colSolid.BoundingBox.Right;
}
if (player.velocity.Y > 0 && Vector2.Distance(pBottom, sTop) < player.texture.Height/ 2) //top
{
player.velocity.Y = 0f;
player.gravityOn = false;
pos.Y = colSolid.BoundingBox.Top - player.BoundingBox.Height;
}
else if (player.velocity.Y < 0 && Vector2.Distance(pTop, sBottom) < player.texture.Height / 2)//bottom
{
player.velocity.Y = 0f;
pos.Y = colSolid.BoundingBox.Bottom;
}
player.position = pos;
}
else
{
player.gravitySpeed = 0.15f;
player.gravityOn = true;
}
}
然而问题是,如果玩家没有与矩形相交,我将重力设置为开启,因此他在与固体碰撞时不断下落,然后被放在顶部以不与它碰撞。我只需要知道:我怎样才能避免这种情况?有没有其他方法可以让玩家在不连续跌向固体的情况下设置重力,然后又回到固体顶部再次下落?
任何帮助表示赞赏。