/
cfdg-rule.sls
59 lines (39 loc) · 1.28 KB
/
cfdg-rule.sls
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;; Copyright 2016 Eduardo Cavazos
;;
;; Licensed under the Apache License, Version 2.0 (the "License");
;; you may not use this file except in compliance with the License.
;; You may obtain a copy of the License at
;;
;; http://www.apache.org/licenses/LICENSE-2.0
;;
;; Unless required by applicable law or agreed to in writing, software
;; distributed under the License is distributed on an "AS IS" BASIS,
;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;; See the License for the specific language governing permissions and
;; limitations under the License.
(library
(agave demos cfdg-rule)
(export rule)
(import (rnrs)
(agave demos cfdg)
(agave misc random-weighted))
(define-syntax rule
(syntax-rules ()
( (rule
name
(weight (shape adjustment ...) ...)
...)
(define name
(let ((selector (random-weighted* (list weight ...)))
(procedures
(vector
(lambda ()
(block
(lambda ()
adjustment ... (shape)))
...)
...)))
(lambda ()
(if (iterate?)
((vector-ref procedures (selector))))))) )))
)