/// <summary>
/// checks to see if the Fixture with motion applied (delta movement vector) collides with any collider. If it does, true will be
/// returned and result will be populated with collision data. motion will be set to the maximum distance the Body can travel
/// before colliding.
/// </summary>
/// <returns><c>true</c>, if with any was collidesed, <c>false</c> otherwise.</returns>
/// <param name="self">Fixture a.</param>
/// <param name="motion">the delta movement in Nez pixel coordinates</param>
/// <param name="result">Result.</param>
public static bool CollidesWithAnyFixtures(this Fixture self, ref Vector2 motion, out FSCollisionResult result)
{
result = new FSCollisionResult();
motion *= FSConvert.DisplayToSim;
AABB aabb;
FSTransform xf;
var didCollide = false;
self.Body.GetTransform(out xf);
xf.P += motion;
self.Shape.ComputeAABB(out aabb, ref xf, 0);
var neighbors = ListPool <Fixture> .Obtain();
self.Body.World.QueryAABB(ref aabb, neighbors);
if (neighbors.Count > 1)
{
// handle collisions with all but ourself
for (var i = 0; i < neighbors.Count; i++)
{
if (neighbors[i].FixtureId == self.FixtureId)
{
continue;
}
if (FSCollisions.CollideFixtures(self, ref motion, neighbors[i], out result))
{
// if we have a collision, adjust the transform to account for it
xf.P += result.MinimumTranslationVector;
}
}
}
ListPool <Fixture> .Free(neighbors);
motion *= FSConvert.SimToDisplay;
return(didCollide);
}
/// <summary>
/// checks for collisions between two Fixtures. Note that the first Fixture must have a Circle/PolygonShape and one of the Fixtures must be
/// static for a collision to occur.
/// </summary>
/// <returns><c>true</c>, if fixtures was collided, <c>false</c> otherwise.</returns>
/// <param name="self">Self.</param>
/// <param name="fixtureB">Fixture b.</param>
/// <param name="result">Result.</param>
public static bool CollideFixtures(this Fixture self, Fixture fixtureB, out FSCollisionResult result)
{
return(FSCollisions.CollideFixtures(self, fixtureB, out result));
}
