private void Start()
{
PosRot placement = CalcTargetPlacement();
transform.position = placement.Position;
transform.rotation = placement.Rotation;
}
private void OnDrawGizmos()
{
Gizmos.color = Color.red;
PosRot placement = CalcTargetPlacement();
Gizmos.DrawLine(transform.position, placement.Position);
Gizmos.matrix = Matrix4x4.TRS(placement.Position, placement.Rotation, Vector3.one);
Gizmos.DrawCube(Vector3.zero, new Vector3(5, 1, 10));
Gizmos.matrix = Matrix4x4.identity;
}
private PosRot CalcTargetPlacement()
{
Ray ray = new Ray(transform.position, transform.rotation * Vector3.down);
RaycastHit hit;
if (Physics.Raycast(ray, out hit, 100, placementLayers.value))
{
PosRot placement = new PosRot();
placement.Position = hit.point;
Quaternion alongNormal = Quaternion.FromToRotation(Vector3.up, hit.normal);
float angle = transform.rotation.eulerAngles.y;
placement.Rotation = Quaternion.AngleAxis(angle, hit.normal) * alongNormal;
return(placement);
}
return(new PosRot(transform.position, transform.rotation));
}