#:use-module ((gacela gl) #:select (glPushMatrix glPopMatrix))
#:use-module (ice-9 optargs))
-(define-macro (define-view name content)
- `(begin
- (hash-set! active-views ',name (lambda () (video:glmatrix-block ,content)))
- ',name))
+
+;;; Views
+
+(define view-type
+ (make-record-type "view"
+ '(id controllers meshes priority)
+ (lambda (record port)
+ (format port "#<view: ~a controllers / ~a meshes>"
+ (length (hash-map->list (lambda x x) (view-controllers record)))
+ (length (hash-map->list (lambda x x) (view-meshes record)))))))
+
+(define* (make-view #:optional (priority 0)) ((record-constructor view-type) (gensym) (make-hash-table) (make-hash-table) priority))
+(define view? (record-predicate view-type))
+(define view-id (record-accessor view-type 'id))
+(define view-controllers (record-accessor view-type 'controllers))
+(define view-meshes (record-accessor view-type 'meshes))
+(define view-priority (record-accessor view-type 'priority))
+
+(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 (hash-map->list (lambda (k v) v) (view-meshes (cdar views))))
+ (run-views (cdr views)))))
+
+(define (draw-meshes meshes)
+ (cond ((not (null? meshes))
+ (catch #t
+ (lambda () (mesh-draw (car meshes)))
+ (lambda (key . args) #f))
+ (draw-meshes (cdr meshes)))))
+
+
+(define default-view (activate-view (make-view)))
+
+
+;;; Meshes
(define mesh-type
(make-record-type "mesh"
- '(draw translate turn rotate inner-properties inner-property properties properties-set! property property-set!)))
+ '(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))))
+ (mesh-properties record))
+ (display ">" port))))
+
-(define mesh-constructor (record-constructor mesh-type))
(define mesh? (record-predicate mesh-type))
-(define (mesh proc)
+(define* (make-mesh proc #:optional type)
(apply
- mesh-constructor
+ (record-constructor mesh-type)
(let ((px 0) (py 0) (pz 0)
(ax 0) (ay 0) (az 0)
(rx 0) (ry 0) (rz 0)
(properties '()))
(let ((inner-properties
(lambda ()
- `((id . ,id) (x . ,px) (y . ,py) (z . ,pz) (ax . ,ax) (ay . ,ay) (az . ,az) (rx . ,rx) (ry . ,ry) (rz . ,rz)))))
+ `((id . ,id) (type . ,type) (x . ,px) (y . ,py) (z . ,pz) (ax . ,ax) (ay . ,ay) (az . ,az) (rx . ,rx) (ry . ,ry) (rz . ,rz)))))
(list
(lambda ()
"draw"
"property-set!"
(set! properties (assoc-set! properties prop-name value))))))))
-(define mesh-properties-set!
- (let ((f (record-accessor mesh-type 'properties-set!)))
- (lambda (mesh new-properties)
- ((f mesh) new-properties))))
+(define (mesh-draw mesh)
+ (((record-accessor mesh-type 'draw) mesh)))
+
+(define (mesh-inner-properties mesh)
+ (((record-accessor mesh-type 'inner-properties) mesh)))
+
+(define (mesh-inner-property mesh prop-name)
+ (((record-accessor mesh-type 'inner-property) mesh) prop-name))
+
+(define (mesh-properties mesh)
+ (((record-accessor mesh-type 'properties) mesh)))
+
+(define (mesh-properties-set! mesh new-properties)
+ (((record-accessor mesh-type 'properties-set!) mesh) new-properties))
+
+(define (mesh-property mesh prop-name)
+ (((record-accessor mesh-type 'property) mesh) prop-name))
+
+(define (mesh-property-set! mesh prop-name value)
+ (((record-accessor mesh-type 'property-set!) mesh) prop-name value))
(define* (show mesh #:optional (view default-view))
- (let ((id (mesh 'inner-property '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 'id)))
+ (let ((table (view-meshes view)))
+ (hash-remove! table (mesh-inner-property mesh 'id))))
(define* (translate mesh x y #:optional (z 0))
- (mesh 'translate x y z)
+ (((record-accessor mesh-type 'translate) mesh) x y z)
mesh)
(define (turn mesh . params)
- (if (>= (length params) 3)
- (apply mesh (cons 'turn params))
- (mesh 'turn 0 0 (car params)))
+ (apply ((record-accessor mesh-type 'turn) mesh)
+ (if (>= (length params) 3)
+ params
+ (list 0 0 (car params))))
mesh)
(define (rotate mesh . params)
- (if (>= (length params) 3)
- (apply mesh (cons 'rotate params))
- (mesh 'rotate 0 0 (car params)))
+ (apply ((record-accessor mesh-type 'rotate) mesh)
+ (if (>= (length params) 3)
+ params
+ (list 0 0 (car params))))
mesh)
;;; Primitives
-(define-macro (primitive proc)
+(defmacro* define-primitive (proc #:optional type)
`(lambda (. params)
- (let ((m (mesh (lambda (props) (apply ,proc ((@ (gacela utils) arguments-apply) ,proc props))))))
+ (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))
+ (define ,origin (define-primitive ,dest ',origin))
(define-primitives ,@(cdr symbols)))))))
(define-primitives
(if (not (eq? sym '%module-public-interface))
(module-export! (current-module) (list sym))))
(current-module))
+
+
+;;; Adding extensions to the main loop
+(add-extension! run-views 10)
projects / gacela.git / blobdiff