import org.openrndr.application
import org.openrndr.color.ColorRGBa
import org.openrndr.extensions.SingleScreenshot
import org.openrndr.extra.shapes.grid

suspend fun main() {
    application {
        configure {
            width = 800
            height = 800
        }
        program {
            if (System.getProperty("takeScreenshot") == "true") {
                extend(SingleScreenshot()) {
                    this.outputFile = System.getProperty("screenshotPath")
                }
            }
            extend {
                drawer.fill = ColorRGBa.WHITE.opacify(0.25)
                drawer.stroke = ColorRGBa.PINK
                val grid = drawer.bounds.grid(8, 4, 20.0, 20.0, -20.0, -20.0)
                for (cell in grid.flatten()) {
                    drawer.rectangle(cell)
                    drawer.lineSegment(cell.position(0.0, 0.0), cell.position(1.0, 1.0))
                }
            }
        }
    }
}