updates to PShape examples

java/examples/Topics/Create Shapes/BeginEndContour/BeginEndContour.pde

@@ -11,7 +11,7 @@ void setup() {
   smooth();
   // Make a shape
   s = createShape();
-  s.noFill();
+  s.fill(0);
   s.stroke(255);
   s.strokeWeight(2);
   // Exterior part of shape

java/examples/Topics/Create Shapes/PolygonPShapeOOP3/Polygon.pde

@@ -0,0 +1,34 @@
+// A class to describe a Polygon (with a PShape)
+
+class Polygon {
+  // The PShape object
+  PShape s;
+  // The location where we will draw the shape
+  float x, y;
+  // Variable for simple motion
+  float speed;
+
+  Polygon(PShape s_) {
+    x = random(width);
+    y = random(-500, -100); 
+    s = s_;
+    speed = random(2, 6);
+  }
+  
+  // Simple motion
+  void move() {
+    y+=speed;
+    if (y > height+100) {
+      y = -100;
+    }
+  }
+  
+  // Draw the object
+  void display() {
+    pushMatrix();
+    translate(x, y);
+    shape(s);
+    popMatrix();
+  }
+}
+

java/examples/Topics/Create Shapes/PolygonPShapeOOP3/PolygonPShapeOOP3.pde

@@ -0,0 +1,63 @@
+/**
+ * PolygonPShapeOOP. 
+ * 
+ * Wrapping a PShape inside a custom class 
+ * and demonstrating how we can have a multiple objects each
+ * using the same PShape.
+ */
+
+
+// A list of objects
+ArrayList<Polygon> polygons;
+
+// Three possible shapes
+PShape[] shapes = new PShape[3];
+
+void setup() {
+  size(640, 360, P2D);
+  smooth();
+  
+  shapes[0] = createShape(ELLIPSE,0,0,100,100);
+  shapes[0].fill(0,127);
+  shapes[0].stroke(0);
+  shapes[1] = createShape(RECT,0,0,100,100);
+  shapes[1].fill(0,127);
+  shapes[1].stroke(0);
+  shapes[2] = createShape();
+  shapes[2].fill(0,127);
+  shapes[2].stroke(0);
+  shapes[2].vertex(0, -50);
+  shapes[2].vertex(14, -20);
+  shapes[2].vertex(47, -15);
+  shapes[2].vertex(23, 7);
+  shapes[2].vertex(29, 40);
+  shapes[2].vertex(0, 25);
+  shapes[2].vertex(-29, 40);
+  shapes[2].vertex(-23, 7);
+  shapes[2].vertex(-47, -15);
+  shapes[2].vertex(-14, -20);
+  shapes[2].end(CLOSE);
+
+
+  // Make an ArrayList
+  polygons = new ArrayList<Polygon>();
+  
+  polygons = new ArrayList<Polygon>();
+  
+  for (int i = 0; i < 25; i++) {
+    int selection = int(random(2));        // Pick a random index
+    Polygon p = new Polygon(shapes[selection]);        // Use corresponding PShape to create Polygon
+    polygons.add(p);
+  }
+}
+
+void draw() {
+  background(255);
+
+  // Display and move them all
+  for (Polygon poly : polygons) {
+    poly.display();
+    poly.move();
+  }
+}
+