This function casts the spell instantaneously. This is mainly desirable only for non-actors, because it will not animate an actor. For instance, the spell will be cast even if the actor's hands are not readied.

If you wish to make an actor cast a spell using all the normal spellcasting behaviors, please instead use an AI package that includes the UseMagic procedure.

Actor races can be set to cast magic only in the direction that the actor is facing; if the source is an actor with this racial setting, this parameter will be ignored.

It seems that using this function on an actor that doesn't have the spell will work. To add, it will also work on Objects, such as a rock.

Using this function will invalidate (cause it to return 0/false when it should return 1/true) any ongoing isDualCasting checks on akSource.

• isDualCasting will continue to return false until akSource stops dual casting.
• There is now a fix for above issue found there: Po3's Dual Casting Fix

While Spell objects will scale with and assign blame to akBlameActor, akSource is considered the 'owner' of the Magic Effect, and as such, projectiles will collide with akBlameActor, and Summon Creature archetype effects will create an instance of the summoned actor for akSource.

• Because of this distinction, spell side conditions will evaluate based on akBlameActor while effect side conditions will depend on akSource's attributes.
• An example of the above behavior: if a box casts Flame Cloak, passing the player as akBlameActor, the player will always draw aggression for the cast, but the effect-side condition IsHostileToActor will prevent the cloak from damaging nearby actors (no actor is considered hostile to the box).