/// <summary>
/// Checks whether <see cref="Character"/> is grounded.
/// </summary>
/// <remarks>
/// <see cref="CharacterController.isGrounded"/> isn't accurate so this method does an additional check using <see cref="Physics"/>.
/// </remarks>
/// <returns>Whether <see cref="Character"/> is grounded.</returns>
protected virtual bool CheckIfCharacterControllerIsGrounded()
{
if (Character.isGrounded)
{
return(true);
}
HeapAllocationFreeReadOnlyList <Collider> hitColliders = PhysicsCast.OverlapSphereAll(
null,
Character.transform.position + (Vector3.up * (Character.radius - Character.skinWidth - 0.001f)),
Character.radius,
1 << Character.gameObject.layer);
foreach (Collider hitCollider in hitColliders)
{
if (hitCollider != Character &&
hitCollider != RigidbodyCollider &&
!ignoredColliders.Contains(hitCollider) &&
!Physics.GetIgnoreLayerCollision(
hitCollider.gameObject.layer,
Character.gameObject.layer) &&
!Physics.GetIgnoreLayerCollision(hitCollider.gameObject.layer, PhysicsBody.gameObject.layer))
{
return(true);
}
}
return(false);
}
/// <summary>
/// Casts a ray from the <see cref="source"/> origin location towards the <see cref="target"/> destination location and determines whether the raycast is blocked by another <see cref="Collider"/>.
/// </summary>
public virtual void Process()
{
Vector3 difference = target.transform.position - source.transform.position;
Ray ray = new Ray(source.transform.position, difference);
RaycastHit[] raycastHits = PhysicsCast.RaycastAll(
physicsCast,
ray,
difference.magnitude,
Physics.IgnoreRaycastLayer);
bool isObscured = raycastHits.Any(hit => hit.transform.gameObject != source && hit.collider != target);
if (isObscured == wasPreviouslyObscured)
{
return;
}
wasPreviouslyObscured = isObscured;
if (isObscured)
{
TargetObscured?.Invoke(raycastHits);
}
else
{
TargetUnobscured?.Invoke();
}
}
/// <summary>
/// Casts a ray to find the first collision.
/// </summary>
/// <param name="tracerRaycast">The ray to cast with.</param>
/// <returns><see langword="true"/> if a valid surface is located.</returns>
protected virtual bool FindFirstCollision(Ray tracerRaycast)
{
RaycastHit collision;
if (PhysicsCast.Raycast(physicsCast, tracerRaycast, out collision, maximumDistance, Physics.IgnoreRaycastLayer))
{
SetSurfaceData(collision);
return(true);
}
return(false);
}
/// <summary>
/// Casts a ray to find all collisions.
/// </summary>
/// <param name="tracerRaycast">The ray to cast with.</param>
/// <returns><see langword="true"/> if a valid surface is located.</returns>
protected virtual bool FindAllCollisions(Ray tracerRaycast)
{
foreach (RaycastHit collision in PhysicsCast.RaycastAll(physicsCast, tracerRaycast, maximumDistance, Physics.IgnoreRaycastLayer).OrderBy(hit => hit.distance))
{
if (ValidSurface(collision))
{
SetSurfaceData(collision);
return(true);
}
}
return(false);
}
