import org.openrndr.application
import org.openrndr.color.ColorRGBa
import org.openrndr.draw.isolated
import org.openrndr.extra.timeoperators.Envelope
import org.openrndr.extra.timeoperators.TimeOperators

fun main() = application {
    program {
        val size = Envelope(50.0, 400.0, 0.5, 0.5)
        val rotation = Envelope(easingFactor = 0.4)

        extend(TimeOperators()) {
            track(size, rotation)
        }
        extend {
            if (frameCount % 80 == 0) {
                size.trigger()
            }

            if (frameCount % 50 == 0) {
                rotation.trigger(180.0)
            }

            drawer.isolated {
                drawer.stroke = ColorRGBa.PINK
                drawer.fill = ColorRGBa.PINK

                drawer.translate(width / 2.0, height / 2.0)
                drawer.rotate(rotation.value)

                val side = size.value / 2.0
                val offset = side / 2.0

                drawer.rectangle(0.0 - offset, 0.0 - offset, side, side)
            }
        }
    }
}