;;; Mobs Factory
-(define add-mob #f)
-(define kill-mob #f)
+(define show-mob-hash #f)
+(define hide-mob-hash #f)
(define get-active-mobs #f)
-(define reload-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 ((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
- (lambda (mob)
- (set! active-mobs (lset-difference eq? active-mobs (list (procedure-name mob))))
- (set! reload #t)))
+ (set! hide-mob-hash
+ (lambda (key)
+ (hash-remove! 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! mobs-changed?
+ (lambda () changed)))
-(define-macro (get-mobs-function)
- (let ((mobs (get-active-mobs)))
- `(lambda () ,@(map (lambda (mob) `(,mob)) mobs))))
+(define-macro (show-mob mob)
+ `(show-mob-hash ',mob (lambda (option) (,mob option))))
+
+(define-macro (hide-mob mob)
+ `(hide-mob-hash ',mob))
+
+(define (run-mob-actions mobs)
+ (for-each (lambda (m) (m 'run-actions)) mobs))
+
+(define (render-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)))
+ `(set! attributes (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 attr . look)
+ (define (process-look look)
+ (cond ((null? look) (values '() '()))
+ (else
+ (let ((line (car look)))
+ (receive (lines images) (process-look (cdr look))
+ (cond ((string? line)
+ (let ((var (gensym)))
+ (values (cons `(draw-texture ,var) lines)
+ (cons `(,var (load-texture ,line)) images))))
+ (else
+ (values (cons line lines)
+ images))))))))
+
+ (receive (look-lines look-images) (process-look look)
+ `(let ,look-images
+ (lambda (attributes)
+ (let ,(map attr-def attr)
+ (glPushMatrix)
+ ,@look-lines
+ (glPopMatrix))))))
+
+
+;;; Making mobs
(define-macro (define-mob mob-head . look)
(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 ,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 (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)))