Function used in mission creation.
Objective. The player has to cast given spells to complete the objective.
name: Action name, only used by the mission designer.
action: Action names referring to the spell bricks to be cast.
hide_obj (Boolean): Prevent the step to be displayed in the mission log.
overload_objective (Optional): Allow to set a specific a description of the mission. See the text guidelines reference document for the formatting requirements.
roleplay_objective (Optional): Allow to add a description to the step.
place (Optional): Place name. Location where the spells have to be cast.
place (place): $p$
For spell number X