+ `(define ,name
+ (lambda-mob ,attr ,@look))))
+
+(define-macro (lambda-mob attr . look)
+ `(let ((mob #f))
+ (set! mob
+ (let ((attr ',attr) (actions '()) (looks '()))
+ (lambda (option . params)
+ (case option
+ ((get-attr)
+ attr)
+ ((set-attr)
+ (if (not (null? params)) (set! attr (car params))))
+ ((get-actions)
+ actions)
+ ((set-actions)
+ (if (not (null? params)) (set! actions (car params))))
+ ((get-looks)
+ looks)
+ ((set-looks)
+ (if (not (null? params)) (set! looks (car params))))
+ ((run-actions)
+ (for-each
+ (lambda (action)
+ (set! attr ((cdr action) attr)))
+ actions))
+ ((render)
+ (for-each
+ (lambda (look)
+ ((cdr look) attr))
+ looks))))))
+ (cond ((not (null? ',look))
+ (mob 'set-looks
+ (list (cons
+ 'default-look
+ (lambda-look ,attr ,@look))))))
+ mob))
+
+(define-macro (define-mob mob-def)
+ (let ((name (car mob-def)) (def (cdr mob-def)))
+ `(define ,name
+ (lambda-mob ,def))))
+
+(defmacro* lambda-mob (#:key (attr '()) (action #f) (look #f))
+ `(let ((attr ,attr) (action ,action) (look ,look))
+ (lambda (option . params)
+ (case option
+ ((get-attr)
+ attr)
+ ((set-attr)
+ (if (not (null? params)) (set! attr (car params))))
+ ((get-action)
+ action)
+ ((set-action)
+ (if (not (null? params)) (set! action (car params))))
+ ((get-look)
+ look)
+ ((set-look)
+ (if (not (null? params)) (set! look (car params))))
+ ((run-mob)
+ (lambda (action)
+ (set! attr ((cdr action) attr)))
+ actions))
+ ((render)
+ (for-each
+ (lambda (look)
+ ((cdr look) attr))
+ looks))))))
+
+
+(define (get-mob-attr mob var)
+ (let ((value (assoc-ref (mob 'get-attr) var)))
+ (if value (car value) #f)))
+
+(define (set-mob-attr! mob var value)
+ (mob 'set-attr (assoc-set! (mob 'get-attr) var (list value))))
+
+(define (add-mob-action mob name action)
+ (mob 'set-actions (assoc-set! (mob 'get-actions) name action)))
+
+(define (quit-mob-action mob name)
+ (mob 'set-actions (assoc-remove! (mob 'get-actions) name)))
+
+(define (add-mob-look mob name look)
+ (mob 'set-looks (assoc-set! (mob 'get-looks) name look)))
+
+(define (quit-mob-look mob name)
+ (mob 'set-looks (assoc-remove! (mob 'get-looks) name)))