Changing things.

[gacela.git] / src / views.scm

diff --git a/src/views.scm b/src/views.scm
index d658eafaf0786a28caa9344640bddf638e8e2fb7..805a47d13f3a278945df9b8feca14c1ba39058d8 100644 (file)
--- a/src/views.scm
+++ b/src/views.scm
@@ -29,61 +29,84 @@
 (define (mesh primitive)
   (let ((x 0) (y 0) (z 0)
        (ax 0) (ay 0) (az 0)
-       (rx 0) (ry 0) (rz 0))
-    (lambda (option . params)
-      (case option
-       ((draw)
-        (video:glatrix-block
-         (video:rotate rx ry rz)
-         (video:translate x y z)
-         (video:rotate ax ay az)
-         (primitive)))
-       ((get-properties)
-        `((x . ,x) (y . ,y) (z . ,z) (ax . ,ax) (ay . ,ay) (az . ,az) (rx . ,rx) (ry . ,ry) (rz . ,rz)))))))
-
-(define-macro (define-mob mob-head . body)
-  (let* ((name (car mob-head))
-        (attr (cdr mob-head))
-        (make-fun-symbol (gensym))
-        (mob-fun-symbol (gensym))
-        (params-symbol (gensym)))
-    `(define (,name . ,params-symbol)
-       (define ,make-fun-symbol
-        (lambda* ,(if (null? attr) '() `(#:key ,@attr))
-          (the-mob ,name (list ,@(map (lambda (a) `(cons ',(car a) ,(car a))) attr)))))
-       (define ,mob-fun-symbol
-        (define-mob-function ,attr ,@body))
-       (cond ((or (null? ,params-symbol) (keyword? (car ,params-symbol)))
-             (apply ,make-fun-symbol ,params-symbol))
-            (else
-             (apply ,mob-fun-symbol ,params-symbol))))))
-
-
-(define-macro (define-mesh name . mesh)
-  (let* ((make-fun-symbol (gensym))
-        (mesh-fun-symbol (gensym))
-        (params-symbol (gensym)))
-    `(define ,name
-       (let ((,make-fun-symbol
-             (lambda ()))
-            (,mesh-fun-symbol
-             (lambda ())))
-        (lambda (. ,params-symbol)
-          (cond ((or (null? ,params-symbol) (keyword? (car ,params-symbol)))
-                 (apply ,make-fun-symbol ,params-symbol))
-                (else
-                 (apply ,mesh-fun-symbol ,params-symbol))))))))
-        
+       (rx 0) (ry 0) (rz 0)
+       (id (gensym))
+       (properties '()))
+    (let ((inner-properties
+          (lambda ()
+            `((id . ,id) (x . ,x) (y . ,y) (z . ,z) (ax . ,ax) (ay . ,ay) (az . ,az) (rx . ,rx) (ry . ,ry) (rz . ,rz)))))
+      (lambda (option . params)
+       (case option
+         ((draw)
+          (video:glmatrix-block
+           (video:rotate ax ay az)
+           (video:translate x y z)
+           (video:rotate rx ry rz)
+           (primitive)))
+         ((translate)
+          (set! x (+ x (car params)))
+          (set! y (+ y (cadr params)))
+          (set! z (+ z (caddr params))))
+         ((turn)
+          (set! ax (+ ax (car params)))
+          (set! ay (+ ay (cadr params)))
+          (set! az (+ az (caddr params))))
+         ((rotate)
+          (set! rx (+ rx (car params)))
+          (set! ry (+ ry (cadr params)))
+          (set! rz (+ rz (caddr params))))
+         ((inner-properties)
+          (inner-properties))
+         ((inner-property)
+          (assoc-ref (inner-properties) (car params)))
+         ((properties)
+          properties)
+         ((property)
+          (assoc-ref properties (car params)))
+         ((property-set!)
+          (set! properties (assoc-set! properties (car params) (cadr params)))))))))
+
+(define* (show mesh #:optional (view default-view))
+  (let ((id (mesh 'inner-property 'id)))
+    (if (not (hash-ref view id))
+       (hash-set! view id mesh))))
+
+(define* (hide mesh #:optional (view default-view))
+  (hash-remove! view (mesh 'inner-property 'id)))
+
+(define* (translate mesh x y #:optional (z 0))
+  (mesh 'translate x y z)
+  mesh)
+
+(define (turn mesh . params)
+  (if (>= (length params) 3)
+      (apply mesh (cons 'turn params))
+      (mesh 'turn 0 0 (car params)))
+  mesh)
+
+(define (rotate mesh . params)
+  (if (>= (length params) 3)
+      (apply mesh (cons 'rotate params))
+      (mesh 'rotate 0 0 (car params)))
+  mesh)
+
+
+;;; Primitives
+
+(define (basic proc)
+  ((@ (system vm program) program-lambda-list) proc))
 
 (define-macro (define-primitives . symbols)
   (cond ((null? symbols)
         `#t)
        (else
-        `(begin
-           (define (,(caar symbols) . params) (mesh (lambda () (apply ,(cadar symbols) params))))
-           (define-primitives ,@(cdr symbols))))))
-
-; (define-macro (,(caar symbols) . params) (let ((f ',(cadar symbols))) `(mesh (lambda () (apply ,f ',params)))))
+        (let ((origin (caar symbols))
+              (dest (cadar symbols)))
+          `(begin
+             ,(if (and (list? origin) (list? dest))
+                  `(define* ,origin #f)
+                  `(define (,origin . params) (mesh (lambda () (apply ,dest params)))))
+             (define-primitives ,@(cdr symbols)))))))
 
 (define-primitives
   (rectangle video:draw-rectangle)