public static CollisionResponse CollisionCheck(BoundingCircle c1, BoundingCircle c2)
{
CollisionResponse result = new CollisionResponse();
float distanceSquared = Vector2.DistanceSquared(c1.center, c2.center);
if (distanceSquared < (c1.radius + c2.radius) * (c1.radius + c2.radius))
{
result.collided = true;
result.normal = c1.center - c2.center;
//Special case for coinciding circles, set the normal to (1,0) - could be changed to random for less predictable behaviour?
if (result.normal.Length() - 0.0001f < 0)
{
result.normal = new Vector2(1, 0);
}
result.normal.Normalize();
result.penetrationDepth = c1.radius + c2.radius - (float)Math.Sqrt(distanceSquared);
}
else
{
result.collided = false;
}
return(result);
}
public static CollisionResponse CollisionCheck(BoundingCircle c, Rectangle r) {
CollisionResponse result = new CollisionResponse();
Vector2 closestPoint = ClosestPointPointRectangle(c.center, r);
float distanceSquared = Vector2.DistanceSquared(closestPoint,c.center);
bool contained = r.Contains(c.center);
if(distanceSquared < c.radius * c.radius || contained){
result.collided = true;
result.normal = c.center - closestPoint;
result.normal.Normalize();
//Special case for a circle with center inside the rectangle
if (contained)
{
result.normal = -result.normal;
result.penetrationDepth = c.radius + (float)Math.Sqrt(distanceSquared);
}
else {
result.penetrationDepth = c.radius - (float)Math.Sqrt(distanceSquared);
}
} else {
result.collided = false;
}
return result;
}
public static CollisionResponse CollisionCheck(BoundingCircle c, Rectangle r)
{
CollisionResponse result = new CollisionResponse();
Vector2 closestPoint = ClosestPointPointRectangle(c.center, r);
float distanceSquared = Vector2.DistanceSquared(closestPoint, c.center);
bool contained = r.Contains(c.center);
if (distanceSquared < c.radius * c.radius || contained)
{
result.collided = true;
result.normal = c.center - closestPoint;
result.normal.Normalize();
//Special case for a circle with center inside the rectangle
if (contained)
{
result.normal = -result.normal;
result.penetrationDepth = c.radius + (float)Math.Sqrt(distanceSquared);
}
else
{
result.penetrationDepth = c.radius - (float)Math.Sqrt(distanceSquared);
}
}
else
{
result.collided = false;
}
return(result);
}
public static CollisionResponse CollisionCheck(BoundingCircle c1, BoundingCircle c2) {
CollisionResponse result = new CollisionResponse();
float distanceSquared = Vector2.DistanceSquared(c1.center, c2.center);
if(distanceSquared < (c1.radius + c2.radius) * (c1.radius + c2.radius)){
result.collided = true;
result.normal = c1.center - c2.center;
//Special case for coinciding circles, set the normal to (1,0) - could be changed to random for less predictable behaviour?
if (result.normal.Length() - 0.0001f < 0)
result.normal = new Vector2(1, 0);
result.normal.Normalize();
result.penetrationDepth = c1.radius + c2.radius - (float)Math.Sqrt(distanceSquared);
} else {
result.collided = false;
}
return result;
}