'(draw translate turn rotate inner-properties inner-property properties properties-set! property property-set!)
(lambda (record port)
(format port "#<mesh: ~a" (mesh-inner-property record 'type))
- (for-each (lambda (x)
- (cond (((@ (gacela utils) bound?) (cdr x))
- (format port " ~a" x))))
+ (for-each (lambda (x) (format port " ~a" x))
(mesh-properties record))
(display ">" port))))
mesh)
+;;; Advanced meshes
+
+(define (mesh-join . meshes)
+ (make-mesh
+ 'joined-meshes
+ (lambda (props)
+ (for-each (lambda (m) (glmatrix-block (mesh-draw m))) meshes))))
+
+
;;; Primitives
(define-macro (define-mesh header . body)
(mesh-properties-set! m (list ,@(map (lambda (a) `(cons ',a ,a)) (names-arguments args))))
m))))
-(define-mesh (square size #:key texture color)
+(define-macro (primitive header . body)
+ (let* ((type (car header))
+ (args (cdr header))
+ (list-args (names-arguments args)))
+ `(lambda* ,args
+ (let ((m (make-mesh
+ ',type
+ (lambda (props)
+ (apply (lambda* ,(cons #:key list-args) ,@body)
+ (list
+ ,@(let get-params ((l list-args))
+ (cond ((null? l) '())
+ (else
+ (cons (symbol->keyword (car l))
+ (cons `(assoc-ref props ',(car l))
+ (get-params (cdr l)))))))))))))
+ (mesh-properties-set! m (list ,@(map (lambda (a) `(cons ',a ,a)) list-args)))
+ m))))
+
+(define-macro (define-primitive header . body)
+ `(define ,(car header) (primitive ,header ,@body)))
+
+
+;;; Primitives definition
+
+(define-primitive (square size #:key texture color)
(draw-square size #:texture texture #:color color))
+(define-primitive (rectangle width height #:key texture color texture-coord)
+ (draw-rectangle width height #:texture texture #:color color #:texture-coord texture-coord))
+
(module-map (lambda (sym var)
(if (not (eq? sym '%module-public-interface))