Initial Commit

Java/Processing/processing-3.3.6/modes/java/examples/Basics/Objects/CompositeObjects/CompositeObjects.pde

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+/**
+ * Composite Objects
+ * 
+ * An object can include several other objects. Creating such composite objects 
+ * is a good way to use the principles of modularity and build higher levels of 
+ * abstraction within a program.
+ */
+
+EggRing er1, er2;
+
+
+void setup() {
+  size(640, 360);
+  er1 = new EggRing(width*0.45, height*0.5, 0.1, 120);
+  er2 = new EggRing(width*0.65, height*0.8, 0.05, 180);
+}
+
+
+void draw() {
+  background(0);
+  er1.transmit();
+  er2.transmit();
+}

Java/Processing/processing-3.3.6/modes/java/examples/Basics/Objects/CompositeObjects/Egg.pde

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+class Egg {
+  float x, y; // X-coordinate, y-coordinate
+  float tilt; // Left and right angle offset
+  float angle; // Used to define the tilt
+  float scalar; // Height of the egg
+
+  // Constructor
+  Egg(float xpos, float ypos, float t, float s) {
+    x = xpos;
+    y = ypos;
+    tilt = t;
+    scalar = s / 100.0;
+  }
+
+  void wobble() {
+    tilt = cos(angle) / 8;
+    angle += 0.1;
+  }
+
+  void display() {
+    noStroke();
+    fill(255);
+    pushMatrix();
+    translate(x, y);
+    rotate(tilt);
+    scale(scalar);
+    beginShape();
+    vertex(0, -100);
+    bezierVertex(25, -100, 40, -65, 40, -40);
+    bezierVertex(40, -15, 25, 0, 0, 0);
+    bezierVertex(-25, 0, -40, -15, -40, -40);
+    bezierVertex(-40, -65, -25, -100, 0, -100);
+    endShape();
+    popMatrix();
+  }
+}

Java/Processing/processing-3.3.6/modes/java/examples/Basics/Objects/CompositeObjects/EggRing.pde

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+class EggRing {
+  Egg ovoid;
+  Ring circle = new Ring();
+
+  EggRing(float x, float y, float t, float sp) {
+    ovoid = new Egg(x, y, t, sp);
+    circle.start(x, y - sp/2);
+  }
+
+  void transmit() {
+    ovoid.wobble();
+    ovoid.display();
+    circle.grow();
+    circle.display();
+    if (circle.on == false) {
+      circle.on = true;
+    }
+  }
+}

Java/Processing/processing-3.3.6/modes/java/examples/Basics/Objects/CompositeObjects/Ring.pde

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+class Ring {
+  
+  float x, y; // X-coordinate, y-coordinate
+  float diameter; // Diameter of the ring
+  boolean on = false; // Turns the display on and off
+  
+  void start(float xpos, float ypos) {
+    x = xpos;
+    y = ypos;
+    on = true;
+    diameter = 1;
+  }
+  
+  void grow() {
+    if (on == true) {
+      diameter += 0.5;
+      if (diameter > width*2) {
+        diameter = 0.0;
+      }
+    }
+  }
+  
+  void display() {
+    if (on == true) {
+      noFill();
+      strokeWeight(4);
+      stroke(155, 153);
+      ellipse(x, y, diameter, diameter);
+    }
+  }
+}