void IUpdatable.Update()
{
if (IsImmovable || _collider == null)
{
Velocity = Vector2.Zero;
return;
}
if (ShouldUseGravity)
{
Velocity += Physics.Gravity * Time.DeltaTime;
}
Entity.Transform.Position += Velocity * Time.DeltaTime;
CollisionResult collisionResult;
// fetch anything that we might collide with at our new position
var neighbors = Physics.BoxcastBroadphaseExcludingSelf(_collider, _collider.CollidesWithLayers);
foreach (var neighbor in neighbors)
{
// if the neighbor collider is of the same entity, ignore it
if (neighbor.Entity == Entity)
{
continue;
}
if (_collider.CollidesWith(neighbor, out collisionResult))
{
// if the neighbor has an ArcadeRigidbody we handle full collision response. If not, we calculate things based on the
// neighbor being immovable.
var neighborRigidbody = neighbor.Entity.GetComponent <ArcadeRigidbody>();
if (neighborRigidbody != null)
{
ProcessOverlap(neighborRigidbody, ref collisionResult.MinimumTranslationVector);
ProcessCollision(neighborRigidbody, ref collisionResult.MinimumTranslationVector);
}
else
{
// neighbor has no ArcadeRigidbody so we assume its immovable and only move ourself
Entity.Transform.Position -= collisionResult.MinimumTranslationVector;
var relativeVelocity = Velocity;
CalculateResponseVelocity(ref relativeVelocity, ref collisionResult.MinimumTranslationVector,
out relativeVelocity);
Velocity += relativeVelocity;
}
}
}
}
