;;; Mobs Factory
-(define add-mob-symbol #f)
-(define kill-mob-symbol #f)
+(define show-mob-hash #f)
+(define hide-mob-hash #f)
(define get-active-mobs #f)
-(define reload-mobs? #f)
-(define mobs-reloaded #f)
+(define clear-active-mobs #f)
+(define mobs-changed? #f)
-(let ((active-mobs '()) (reload #f))
- (set! add-mob-symbol
- (lambda (mob)
- (pushnew mob active-mobs)
- (set! reload #t)))
+(let ((active-mobs (make-hash-table)) (changed #f))
+ (set! show-mob-hash
+ (lambda (key mob)
+ (hash-set! active-mobs key mob)
+ (set! changed #t)))
- (set! kill-mob-symbol
- (lambda (mob)
- (set! active-mobs (lset-difference eq? active-mobs (list mob)))
- (set! reload #t)))
+ (set! hide-mob-hash
+ (lambda (key)
+ (hash-remove! active-mobs key)
+ (set! changed #t)))
(set! get-active-mobs
- (lambda () active-mobs))
+ (lambda* (#:optional (refreshed #t))
+ (set! changed (not refreshed))
+ (hash-map->list (lambda (k v) v) active-mobs)))
- (set! reload-mobs?
- (lambda () reload))
+ (set! clear-active-mobs
+ (lambda ()
+ (set! changed #t)
+ (hash-clear! active-mobs)))
- (set! mobs-reloaded
- (lambda () (set! reload #f))))
+ (set! mobs-changed?
+ (lambda () changed)))
-(define-macro (add-mob mob)
- `(add-mob-symbol ',mob))
-(define-macro (kill-mob mob)
- `(kill-mob-symbol ',mob))
+(define-macro (show-mob mob)
+ (cond ((list? mob)
+ `(let ((m ,mob))
+ (show-mob-hash (m 'get-mob-id) m)))
+ (else
+ `(show-mob-hash (,mob 'get-mob-id) (lambda () (,mob))))))
-(define-macro (get-mobs-function)
- (let ((mobs (get-active-mobs)))
- (cond ((null? mobs)
- `(lambda () #f))
- (else
- `(lambda () ,@(map (lambda (mob) `(,mob #:render)) mobs))))))
+(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-macro (define-mob mob-head . look)
+(define (run-mobs mobs)
+ (clear-mob-data)
+ (for-each (lambda (m) (m 'publish-data)) mobs)
+ (run-mobs-events)
+ (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)))
- `(begin
- (define ,name #f)
- (let ((attr ',attr))
- (set! ,name
- (lambda (option)
- (case option
- ((#:render)
- (glPushMatrix)
- ,@(map (lambda (x) (if (string? x) `(draw-image ,x) x)) look)
- (glPopMatrix)))))))))
+ `(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)))
+ `(let ((,mob-id-symbol (gensym))
+ (,type-symbol ,type)
+ ,@attr)
+ (lambda* (#:optional (option #f))
+ (define (kill-me)
+ (hide-mob-hash ,mob-id-symbol))
+ (case option
+ ((get-mob-id)
+ ,mob-id-symbol)
+ ((get-type)
+ ,type-symbol)
+ ((publish-data)
+ (cond ((not (null? ',publish))
+ (publish-mob-data ,mob-id-symbol ,type-symbol ,(cons 'list (map (lambda (x) `(cons ',(car x) ,(car x))) publish))))))
+ (else
+ (catch #t
+ (lambda () ,@body)
+ (lambda (key . args) #f))))))))
+
+(define-macro (lambda-mob attr . body)
+ `(the-mob 'undefined ,attr '() ,@body))
+
+
+;;; Events Engine
+
+(define publish-mob-data #f)
+(define clear-mob-data #f)
+(define def-mobs-event #f)
+(define run-mobs-events #f)
+(define return-data #f)
+
+(define published-data (make-hash-table))
+(define mobs-events (make-hash-table))
+(define returned-data (make-hash-table))
+
+(let ((nop #f))
+ (set! publish-mob-data
+ (lambda (mob-id mob-type data)
+ (let ((t (hash-ref published-data mob-type))
+ (i (cons mob-id data)))
+ (hash-set! published-data mob-type
+ (cond (t (cons i t))
+ (else (list i)))))))
+
+ (set! clear-mob-data
+ (lambda ()
+ (hash-clear! published-data)
+ (hash-clear! returned-data)))
+
+ (set! def-mobs-event
+ (lambda (pair fun)
+ (cond ((not fun)
+ (hash-remove! mobs-events pair))
+ (else
+ (hash-set! mobs-events pair fun)))))
+
+ (set! run-mobs-events
+ (lambda ()
+ (hash-for-each
+ (lambda (types fun)
+ (let ((t1 (hash-ref published-data (car types)))
+ (t2 (hash-ref published-data (cadr types))))
+ (cond ((and t1 t2)
+ (for-each
+ (lambda (m1)
+ (for-each
+ (lambda (m2)
+ (let ((res (catch #t
+ (lambda () (fun (cdr m1) (cdr m2)))
+ (lambda (key . args) #f))))
+ (cond ((and (list? res) (>= (length res) 2))
+ (let ((id1 (car m1)) (id2 (car m2))
+ (r1 (car res)) (r2 (cadr res)))
+ (return-data id1 (cadr types) r1)
+ (return-data id2 (car types) r2)
+)))))
+ t2))
+ t1)))))
+ mobs-events)))
+
+ (set! return-data
+ (lambda (mob-id mob-type data)
+ (let* ((key (list mob-id mob-type))
+ (res (hash-ref returned-data key)))
+ (hash-set! returned-data key
+ (cond (res (cons data res))
+ (else (list data))))
+)))
+)
+
+(define-macro (define-mobs-event types-pair . body)
+ `(def-mobs-event
+ ',types-pair
+ ,(cond ((null? body) #f)
+ (else `(lambda (,(car types-pair) ,(cadr types-pair)) ,@body)))))