public Collision CheckCollision(CollisionBox box)
{
int direction = -1;
float coord = 0f;
if (IsColliding(box))
{
var leftDist = Math.Abs(left - box.right);
var rightDist = Math.Abs(right - box.left);
var upDist = Math.Abs(up - box.down);
var downDist = Math.Abs(down - box.up);
var minDist = new [] { leftDist, rightDist, upDist, downDist }.Min();
if (minDist == leftDist)
{
direction = (int)Direction.Left;
coord = box.right;
}
else if (minDist == rightDist)
{
direction = (int)Direction.Right;
coord = box.left;
}
else if (minDist == upDist)
{
direction = (int)Direction.Up;
coord = box.down;
}
else if (minDist == downDist)
{
direction = (int)Direction.Down;
coord = box.up;
}
return(new Collision((Direction)direction, coord));
}
return(null);
}
public bool IsColliding(CollisionBox box)
{
return(!(left > box.right || right < box.left ||
up > box.down || down < box.up));
}