;;; Mobs Factory
-(define add-mob #f)
-(define kill-mob #f)
+(define show-mob-hash #f)
+(define hide-mob-hash #f)
+(define refresh-active-mobs #f)
(define get-active-mobs #f)
-(define reload-mobs? #f)
-(define reload-mobs #f)
+(define hide-all-mobs #f)
+(define mobs-changed? #f)
-(let ((active-mobs '(m1 m2)) (reload #f))
- (set! add-mob
- (lambda (mob)
- (pushnew (procedure-name mob) active-mobs)
- (set! reload #t)))
+(let ((mobs-table (make-hash-table))
+ (active-mobs '())
+ (changed #f))
- (set! kill-mob
+ (set! show-mob-hash
(lambda (mob)
- (set! active-mobs (lset-difference eq? active-mobs (list (procedure-name mob))))
- (set! reload #t)))
+ (hash-set! mobs-table (mob 'get-mob-id) mob)
+ (set! changed #t)))
+
+ (set! hide-mob-hash
+ (lambda (mob-id)
+ (hash-remove! mobs-table mob-id)
+ (set! changed #t)))
+
+ (set! refresh-active-mobs
+ (lambda ()
+ (cond (changed
+ (set! changed #f)
+ (set! active-mobs (hash-map->list (lambda (k v) v) mobs-table))))))
(set! get-active-mobs
(lambda () active-mobs))
- (set! reload-mobs?
- (lambda () reload))
-
- (set! reload-mobs
+ (set! hide-all-mobs
(lambda ()
- #f)))
+ (set! changed #t)
+ (hash-clear! mobs-table)))
+
+ (set! mobs-changed?
+ (lambda () changed)))
+
+
+(define-macro (show-mob mob)
+ (cond ((list? mob)
+ `(let ((m ,mob))
+ (show-mob-hash m)))
+ (else
+ `(show-mob-hash (lambda* (#:optional (option #f)) (,mob option))))))
+
+(define-macro (hide-mob mob)
+ (cond ((list? mob)
+ `(let ((m ,mob))
+ (hide-mob-hash (m 'get-mob-id))))
+ (else
+ `(hide-mob-hash (,mob 'get-mob-id)))))
+
+(define* (run-mobs #:optional (mobs (get-active-mobs)))
+ (for-each
+ (lambda (m)
+ (glPushMatrix)
+ (m)
+ (glPopMatrix))
+ mobs))
+
+
+;;; Making mobs
+
+(define-macro (define-mob mob-head . body)
+ (let ((name (car mob-head)) (attr (cdr mob-head)))
+ `(define ,(string->symbol (string-concatenate (list "make-" (symbol->string name))))
+ (lambda* ,(if (null? attr) '() `(#:key ,@attr))
+ (the-mob ',name () ,attr ,@body)))))
+
+(define-macro (the-mob type attr publish . body)
+ (let ((mob-id-symbol (gensym))
+ (type-symbol (gensym))
+ (time-symbol (gensym))
+ (data-symbol (gensym))
+ (save-symbol (gensym)))
+ `(let ((,mob-id-symbol (gensym))
+ (,type-symbol ,type)
+ (,time-symbol 0)
+ (,data-symbol '())
+ ,@attr)
+ (lambda* (#:optional (option #f))
+ (define (kill-me)
+ (hide-mob-hash ,mob-id-symbol))
+ (define (,save-symbol)
+ (let ((time (get-frame-time)))
+ (cond ((not (= time ,time-symbol))
+ (set! ,time-symbol time)
+ (set! ,data-symbol ,(cons 'list (map (lambda (x) `(cons ',(car x) ,(car x))) publish)))))))
+ (define (map-mobs fun type)
+ (let ((mobs (filter (lambda (m) (and (eq? (m 'get-type) type) (not (eq? (m 'get-mob-id) ,mob-id-symbol)))) (get-active-mobs))))
+ (map (lambda (m) (fun (m 'get-data))) mobs)))
+ (case option
+ ((get-mob-id)
+ ,mob-id-symbol)
+ ((get-type)
+ ,type-symbol)
+ ((get-data)
+ (,save-symbol)
+ ,data-symbol)
+ (else
+ (,save-symbol)
+ (catch #t
+ (lambda () ,@body)
+ (lambda (key . args) #f))))))))
-(define-macro (get-mobs-function)
- (let ((mobs (get-active-mobs)))
- `(lambda () ,@(map (lambda (mob) `(,mob)) mobs))))
+(define-macro (lambda-mob attr . body)
+ `(the-mob 'undefined ,attr '() ,@body))