protected virtual CollisionDirection GetCollisionAlongCurrentVelocity(LayerMask layer, float timeStep)
{
CollisionDirection directionSet = new CollisionDirection();
Vector2 origin = gameObject.transform.position;
Vector2 direction = body.velocity.normalized;
float distanceNextTimeStep = body.velocity.magnitude * timeStep;
RaycastHit2D raycastHit2D = Physics2D.Raycast(origin, direction, distanceNextTimeStep, layer);
//we're not going to hit anything
if (raycastHit2D.collider == null)
{
return(directionSet);
}
Dev.Log("We're about to hit a wall!");
float x = gameObject.transform.position.x;
float y = gameObject.transform.position.y;
float px = raycastHit2D.point.x;
float py = raycastHit2D.point.y;
float dx = Mathf.Abs(x - px);
float dy = Mathf.Abs(y - py);
//is it an x collision or a y collision?
if (dx > dy)
{
//x collision, hitting left or right from us?
if (px < x)
{
directionSet.left = true;
}
else
{
directionSet.right = true;
}
}
else
{
if (py < y)
{
directionSet.below = true;
}
else
{
directionSet.above = true;
}
}
return(directionSet);
}
}//end CheckTouching
//if the values are within the tolerance, the object is not enough in that direction to be considered offset from us
static protected CollisionDirection GetDirectionToTarget(GameObject self, GameObject target, float toleranceX = 0.1f, float toleranceY = 0.5f)
{
CollisionDirection direction = new CollisionDirection();
float num = self.transform.position.x;
float num2 = self.transform.position.y;
float num3 = target.transform.position.x;
float num4 = target.transform.position.y;
direction.right = (num < num3) && Mathf.Abs(num - num3) > toleranceX;
direction.left = (num > num3) && Mathf.Abs(num - num3) > toleranceX;
direction.above = (num2 < num4) && Mathf.Abs(num2 - num4) > toleranceY;
direction.below = (num2 > num4) && Mathf.Abs(num2 - num4) > toleranceY;
return(direction);
}