// Borrowed from:
// http://weblogs.java.net/blog/cayhorstmann/archive/2010/11/12/geometry-problem-scala-0
// with very small tweaks to make the SPDE code run on Kojo
import Staging._
import math.Pi
val width = 400
reset()
def pairs(n : Int) = for (i <- 0 until n; j <- 0 until n; if i < j) yield (i, j)
def point(i : Int, n : Int, width : Int) =
(((cos(i * 2 * Pi / n) + 1) * width / 2).toInt,
((sin(i * 2 * Pi / n) + 1) * width / 2).toInt)
def draw {
val n = 19
val points = for (i <- 0 until n) yield point(i, n, width)
val lines = for ((i, j) <- pairs(n)) yield (points(i), points(j))
for (((x1, y1), (x2, y2)) <- lines) line(x1, y1, x2, y2)
}
stroke(yellow)
background(black)
draw
