set-game-code
show-mob-hash
hide-mob-hash
- hide-all-mobs)
+ hide-all-mobs
+ get-mob-function-name)
#:export-syntax (game
show-mob
hide-mob
the-mob
+ define-mob-function
define-mob
lambda-mob)
#:re-export (get-current-color
;;; Making mobs
-(define-macro (the-mob type attr publish . body)
- (let ((mob-id-symbol (gensym))
- (type-symbol (gensym))
- (time-symbol (gensym))
+(define mob-functions (make-hash-table))
+
+(define (get-mob-function-name mob-name)
+ (let ((name (hash-ref mob-functions mob-name)))
+ (cond ((not name)
+ (set! name (gensym))
+ (hash-set! mob-functions mob-name name)))
+ name))
+
+(define-macro (the-mob type init-data fun-name)
+ `(let ((mob-id (gensym))
+ (mob-time 0)
+ (mob-data ,init-data)
+ (saved-data ,init-data))
+ (lambda* (#:optional (option #f))
+ (define (save-data)
+ (let ((time (get-frame-time)))
+ (cond ((not (= time mob-time))
+ (set! mob-time time)
+ (set! saved-data mob-data)))))
+; (define (filter-mobs type fun)
+; #t)
+; (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)
+ ((get-type)
+ ,type)
+ ((get-data)
+ (save-data)
+ saved-data)
+ (else
+ (save-data)
+ (set! mob-data (,fun-name mob-id mob-data)))))))
+
+(define-macro (define-mob-function head . body)
+ (let ((fun-name (car head))
+ (attr (map (lambda (a) (if (list? a) a (list a #f))) (cdr head)))
+ (mob-id-symbol (gensym))
(data-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-data)
- (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 (get-data)
- ,data-symbol)
- (define (filter-mobs type fun)
- #t)
- (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-data)
- ,data-symbol)
- (else
- (save-data)
- (catch #t
- (lambda () ,@body)
- (lambda (key . args) #f))))))))
+ `(define (,fun-name ,mob-id-symbol ,data-symbol)
+ (define (kill-me)
+ (hide-mob-hash ,mob-id-symbol))
+ (let ,attr
+ ,@(map
+ (lambda (a)
+ `(let ((val (assoc-ref ,data-symbol ',(car a))))
+ (cond (val (set! ,(car a) val)))))
+ attr)
+ (catch #t
+ (lambda* () ,@body)
+ (lambda (key . args) #f))
+ (list ,@(map (lambda (a) `(cons ',(car a) ,(car a))) attr))))))
(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)))))
+ (let* ((name (car mob-head)) (attr (cdr mob-head))
+ (fun-name (get-mob-function-name name)))
+ `(begin
+ (define-mob-function ,(cons fun-name attr) ,@body)
+ (define ,(string->symbol (string-concatenate (list "make-" (symbol->string name))))
+ (lambda* ,(if (null? attr) '() `(#:key ,@attr))
+ (the-mob ',name (list ,@(map (lambda (a) `(cons ',(car a) ,(car a))) attr)) ,fun-name))))))
(define-macro (lambda-mob attr . body)
- `(the-mob 'undefined ,attr '() ,@body))
+ (let ((fun-name (gensym)))
+ `(begin
+ (define-mob-function ,(cons fun-name attr) ,@body)
+ (the-mob 'undefined '() ,fun-name))))
;;; Collisions