import org.openrndr.application import org.openrndr.extra.kdtree.kdTree import org.openrndr.math.Vector2 fun main() { application { configure { width = 1280 height = 720 } program { val points = MutableList(1000) { Vector2(Math.random() * width, Math.random() * height) } val tree = points.kdTree() extend { drawer.circles(points, 5.0) val nearest = tree.findNearest(mouse.position) nearest?.let { drawer.circle(it.x, it.y, 20.0) } } } } }