(define (process-mobs mobs)
(for-each (lambda (m) (m #:render)) mobs))
+
+;;; Actions and looks for mobs
+
+(define (get-attr list name default)
+ (let ((value (assoc-ref list name)))
+ (cond (value (car value))
+ (else default))))
+
+(define (attr-def attr)
+ (let ((name (car attr))
+ (value (cadr attr)))
+ `(,name (get-attr attributes ',name ',value))))
+
+(define (attr-save attr)
+ (let ((name (car attr)))
+ `(assoc-set! attributes ',name (list ,name))))
+
+(define-macro (define-action action-head . code)
+ (let ((name (car action-head)) (attr (cdr action-head)))
+ `(define ,name
+ (lambda-action ,attr ,@code))))
+
+(define-macro (lambda-action attr . code)
+ `(lambda (attributes)
+ (let ,(map attr-def attr)
+ ,@code
+ ,(cons 'begin (map attr-save attr))
+ attributes)))
+
(define-macro (lambda-look . look)
(define (process-look look)
(cond ((null? look) (values '() '()))
,@look-lines
(glPopMatrix)))))
+
+;;; Making mobs
+
(define-macro (define-mob mob-head . look)
(let ((name (car mob-head)) (attr (cdr mob-head)))
`(define ,name
((get-attr)
attr)
((set-attr)
- (if (not (null? params)) (set! attr (car params))))))))
+ (if (not (null? params)) (set! attr (car params))))
+ ((get-actions)
+ actions)
+ ((set-actions)
+ (if (not (null? params)) (set! actions (car params))))
+ ((get-renders)
+ renders)
+ ((set-renders)
+ (if (not (null? params)) (set! renders (car params))))))))
(cond ((not (null? ',look))
(display ',look)
(newline)))