import org.openrndr.application
import org.openrndr.color.ColorRGBa
import org.openrndr.extra.hashgrid.HashGrid
import org.openrndr.extra.noise.shapes.uniform
import kotlin.random.Random

/**
 * This demo sets up an interactive graphics application with a configurable
 * display window and visualization logic. It uses a `HashGrid` to manage points
 * in a 2D space and randomly generates points within the drawable area. These
 * points are then inserted into the grid if they satisfy certain spatial conditions.
 * The visual output includes:
 * - Rectangles representing the bounds of the cells in the grid.
 * - Circles representing the generated points.
 */
fun main() {
    application {
        configure {
            width = 720
            height = 720
        }
        program {
            val r = Random(0)
            val hashGrid = HashGrid(72.0)

            extend {
                for (i in 0 until 100) {
                    val p = drawer.bounds.uniform(random = r)
                    if (hashGrid.isFree(p)) {
                        hashGrid.insert(p)
                    }
                }

                drawer.fill = null
                drawer.stroke = ColorRGBa.WHITE
                drawer.rectangles(hashGrid.cells().map { it.bounds }.toList())
                drawer.fill = null
                drawer.stroke = ColorRGBa.PINK
                drawer.circles(hashGrid.points().map { it.first }.toList(), 36.0)

            }
        }
    }
}