doodle.examples.ConcentricCircles.scala Maven / Gradle / Ivy
/*
* Copyright 2015 Creative Scala
*
* 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.
*/
package doodle
package svg
import cats.effect.unsafe.implicits.global
import doodle.core.*
import doodle.svg.*
import doodle.syntax.all.*
import scala.scalajs.js.annotation.*
@JSExportTopLevel("ConcentricCircles")
object ConcentricCircles {
def circles(count: Int): Picture[Unit] =
if count == 0 then
Picture.circle(20).fillColor(Color.hsl(0.degrees, 0.7, 0.6))
else
Picture
.circle(count.toDouble * 20.0)
.fillColor(Color.hsl((count * 15).degrees, 0.7, 0.6))
.under(circles(count - 1))
@JSExport
def draw(mount: String) =
circles(7).drawWithFrame(Frame(mount))
}