X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=src%2Fgacela_mobs.scm;h=927d8b138af7125823b8b549e1dcf20605211e83;hb=d2cbfa2d53c011c7c1939e14201fb41a322a9031;hp=de76938d5f14d41e5f2c802897b286d7896105b1;hpb=b82a1140db7d69b576d6b625c4932d66123a36fd;p=gacela.git

diff --git a/src/gacela_mobs.scm b/src/gacela_mobs.scm
index de76938..927d8b1 100755
--- a/src/gacela_mobs.scm
+++ b/src/gacela_mobs.scm
@@ -17,49 +17,117 @@
 
 ;;; Mobs Factory
 
-(define add-mob-lambda #f)
-(define kill-mob-symbol #f)
+(define show-mob-hash #f)
+(define hide-mob-hash #f)
 (define get-active-mobs #f)
 (define mobs-changed? #f)
 
-(let ((active-mobs '()) (changed #f))
-  (set! add-mob-lambda
-	(lambda (mob)
-	  (pushnew mob active-mobs)
+(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! hide-mob-hash
+	(lambda (key)
+	  (hash-remove! key)
 	  (set! changed #t)))
 
   (set! get-active-mobs
 	(lambda* (#:optional (refreshed #t))
 	  (set! changed (not refreshed))
-	  active-mobs))
+	  (hash-map->list (lambda (k v) v) active-mobs)))
 
   (set! mobs-changed?
 	(lambda () changed)))
 
 
-(define-macro (add-mob mob)
-  `(add-mob-lambda (lambda (option) (,mob option))))
+(define-macro (show-mob mob)
+  `(show-mob-hash ',mob (lambda (option) (,mob option))))
 
-(define-macro (kill-mob mob)
-  `(kill-mob-symbol ',mob))
+(define-macro (hide-mob mob)
+  `(hide-mob-hash ',mob))
 
 (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 '() '()))
+	  (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 ()
+		  (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 '()) (renders '()))
+	     (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-renders)
+		  renders)
+		 ((set-renders)
+		  (if (not (null? params)) (set! renders (car params))))))))
+     (cond ((not (null? ',look))
+	    (display ',look)
+	    (newline)))
+     mob))