package adjust

import org.openrndr.application
import org.openrndr.color.ColorRGBa
import org.openrndr.extra.shapes.adjust.adjustContour
import org.openrndr.shape.Circle
import kotlin.math.cos

fun main() = application {
    configure {
        width = 800
        height = 800
    }
    program {
        extend {
            var contour =
                Circle(drawer.bounds.center, 300.0).contour

            contour = adjustContour(contour) {
                selectEdges(0, 1, 2, 3)
                edges.forEachIndexed { index, it ->
                    if (index == seconds.mod(4.0).toInt()) {
                        it.replaceWith(0.5)
                    } else {
                        val v = cos(seconds) * 0.15 + 0.25
                        it.sub(0.5 - v, 0.5 + v)
                    }
                }
            }
            drawer.stroke = ColorRGBa.RED
            drawer.contour(contour)
        }
    }
}