(define (domain cake-money) (:predicates (ingredients) (cake)) (:action buy-ingredients :effect (and (ingredients) (increase (total-cost) 30) ) ) (:action make-cake :precondition (ingredients) :effect (and (cake) (increase (total-cost) 50) ) ) (:action buy-cake :effect (and (cake) (increase (total-cost) 25) ) ) )