Fix demos

orx-noise/src/demo/kotlin/DemoScatter01.kt

@@ -0,0 +1,30 @@
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.math.Vector2
+import org.openrndr.math.mod_
+
+import org.openrndr.extra.noise.scatter
+import org.openrndr.shape.Ellipse
+import kotlin.math.cos
+import kotlin.random.Random
+
+fun main() {
+    application {
+        program {
+            extend {
+                val shape = Ellipse(Vector2(width/2.0, height/2.0), 200.0, 150.0 + cos(seconds)*125.0).shape
+                val points = shape.scatter(20.0,  random = Random(0))
+                drawer.clear(ColorRGBa.BLACK)
+                drawer.stroke = null
+                drawer.fill = ColorRGBa.PINK
+                drawer.circles(points, 4.0)
+
+                if (seconds.mod_(2.0) < 1.0) {
+                    drawer.stroke = ColorRGBa.PINK
+                    drawer.fill = null
+                    drawer.shape(shape)
+                }
+            }
+        }
+    }
+}