;;; Views
-(define default-view (make-hash-table))
-
-(define* (draw-meshes #:optional (meshes (hash-map->list (lambda (k v) v) default-view)))
+(define view-type
+ (make-record-type "view"
+ '(id body meshes priority)
+ (lambda (record port)
+ (format port "#<view: ~a meshes>"
+ (length (view-meshes record))))))
+
+(define (make-view body meshes) ((record-constructor view-type) (gensym) body meshes 0))
+(define view? (record-predicate view-type))
+(define view-id (record-accessor view-type 'id))
+(define view-body (record-accessor view-type 'body))
+(define view-meshes (record-accessor view-type 'meshes))
+(define view-priority (record-accessor view-type 'priority))
+
+(define-macro (view meshes . body)
+ `(make-view
+ ,(cond ((null? body) `(lambda () #f))
+ (else `(lambda () ,@body)))
+ (map (lambda (m)
+ `(,(mesh-inner-property m 'id) . ,m))
+ meshes)))
+
+(define activated-views '())
+(define (sort-views views-alist)
+ (sort views-alist
+ (lambda (v1 v2)
+ (< (view-priority (cdr v1)) (view-priority (cdr v2))))))
+
+(define (activate-view view)
+ (set! activated-views
+ (sort-views (assoc-set! activated-views (view-id view) view)))
+ view)
+
+(define (view-actived? view)
+ (and (assoc (view-id view) activated-views) #t))
+
+(define (view-priority-set! view priority)
+ ((record-modifier view-type 'priority) view priority)
+ (set! activated-views (sort-views activated-views)))
+
+(define* (run-views #:optional (views activated-views))
+ (cond ((not (null? views))
+ ; controllers go here
+ (draw-meshes (view-meshes (cdar views)))
+ (run-views (cdr views)))))
+
+(define (draw-meshes meshes)
(cond ((not (null? meshes))
(catch #t
- (lambda () (mesh-draw (car meshes)))
+ (lambda () (mesh-draw (cdar meshes)))
(lambda (key . args) #f))
(draw-meshes (cdr meshes)))))
-(define-macro (define-view name content)
- `(begin
- (hash-set! active-views ',name (lambda () (video:glmatrix-block ,content)))
- ',name))
+
+;(define default-view (activate-view (make-view)))
;;; Meshes
(define mesh? (record-predicate mesh-type))
-(define* (mesh proc #:optional mesh-type)
+(define* (make-mesh proc #:optional type)
(apply
(record-constructor mesh-type)
(let ((px 0) (py 0) (pz 0)
(ax 0) (ay 0) (az 0)
(rx 0) (ry 0) (rz 0)
- (id (gensym)) (type mesh-type)
+ (id (gensym))
(properties '()))
(let ((inner-properties
(lambda ()
(((record-accessor mesh-type 'property-set!) mesh) prop-name value))
(define* (show mesh #:optional (view default-view))
- (let ((id (mesh-inner-property mesh 'id)))
- (if (not (hash-ref view id))
- (hash-set! view id mesh))))
+ (let ((id (mesh-inner-property mesh 'id))
+ (table (view-meshes view)))
+ (if (not (hash-ref table id))
+ (hash-set! table id mesh))))
(define* (hide mesh #:optional (view default-view))
- (hash-remove! view (mesh-inner-property mesh 'id)))
+ (let ((table (view-meshes view)))
+ (hash-remove! table (mesh-inner-property mesh 'id))))
(define* (translate mesh x y #:optional (z 0))
(((record-accessor mesh-type 'translate) mesh) x y z)
;;; Primitives
-(defmacro* primitive (proc #:optional type)
+(defmacro* define-primitive (proc #:optional type)
`(lambda (. params)
- (let ((m (mesh (lambda (props) (apply ,proc ((@ (gacela utils) arguments-apply) ,proc props))) ,type)))
+ (let ((m (make-mesh (lambda (props) (apply ,proc ((@ (gacela utils) arguments-apply) ,proc props))) ,type)))
(mesh-properties-set! m ((@ (gacela utils) arguments-calling) ,proc params))
m)))
(let ((origin (caar symbols))
(dest (cadar symbols)))
`(begin
- (define ,origin (primitive ,dest ',origin))
+ (define ,origin (define-primitive ,dest ',origin))
(define-primitives ,@(cdr symbols)))))))
(define-primitives
(square video:draw-square))
+;;; Adding extensions to the main loop
+(add-extension! run-views 10)
+
+
(module-map (lambda (sym var)
(if (not (eq? sym '%module-public-interface))
(module-export! (current-module) (list sym))))
(current-module))
-
-
-;;; Adding extensions to the main loop
-(add-extension! draw-meshes 50)