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;;
;; starlet/fixture-library/generic.scm
;;
;; Copyright © 2020-2021 Thomas White <taw@bitwiz.org.uk>
;;
;; This file is part of Starlet.
;;
;; Starlet is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
;;
(define-module (starlet fixture-library generic)
  #:use-module (oop goops)
  #:use-module (starlet fixture)
  #:export (<generic-dimmer>
            generic-rgb))

(define-class <generic-dimmer> (<fixture>)
  (attributes
    #:init-form (list
                  (attr-continuous 'intensity '(0 100) 0))))


(define-method (scanout-fixture (fixture <generic-dimmer>)
                                get-attr set-chan8 set-chan16)

  ;; Set DMX value for intensity
  (set-chan8 1 (percent->dmxval8 (get-attr 'intensity))))


(define (chan->attr chan)
  (attr-continuous chan '(0 100) 0))


(define (generic-rgb chans)

  (let ((new-class (make-class
                    (list <fixture>)
                    (list (cons 'attributes
                                (list #:init-thunk
                                      (lambda ()
                                        (map chan->attr chans)))))
                    #:name 'generic-rgb)))

    (add-method!
     scanout-fixture
     (method ((fix new-class) get-attr set-chan8 set-chan16)
             (for-each

              (lambda (chan offset)

                (cond

                 ((eq? chan '0)
                  (set-chan8 offset 0))

                 ((eq? chan 'FL)
                  (set-chan8 offset 255))

                 (else (set-chan8 offset
                                 (percent->dmxval8
                                  (get-attr chan))))))

              chans (iota (length chans) 1))))

    new-class))