(register-components key
(map (lambda (c) (car c)) nc)
components)
- key))))
+ (cons key nc)))))
(define (remove-entity key)
(lambda (entities components)
- (let ((clist (map (lambda (c) (car c)) (assoc-ref entities key))))
+ (let ((clist (map (lambda (c) (car c)) (assoc-ref entities key)))
+ (entity (assoc key entities)))
(values
(assoc-remove! entities key)
- (unregister-components key clist components)))))
+ (unregister-components key clist components)
+ entity))))
(define (set-entity key . new-components)
(lambda (entities components)
(values
(assoc-set! entities key nc)
(register-components key (lset-difference eq? nclist clist)
- (unregister-components key (lset-difference eq? clist nclist) components))))))
+ (unregister-components key (lset-difference eq? clist nclist) components))
+ (cons key nc)))))
(define (set-entity-components key . new-components)
(lambda (entities components)
nc)
(values
(assoc-set! entities key clist)
- (register-components key (map (lambda (c) (car c)) nc) components)))))
+ (register-components key (map (lambda (c) (car c)) nc) components)
+ (cons key clist)))))
(define (remove-entity-components key . old-components)
(lambda (entities components)
old-components)
(values
(assoc-set! entities key clist)
- (unregister-components key old-components components)))))
+ (unregister-components key old-components components)
+ (cons key clist)))))
(define (modify-entities changes entities components)
(cond ((null? changes)