Initial Commit

Java/Processing/processing-3.3.6/modes/java/examples/Basics/Math/SineCosine/SineCosine.pde

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+/**
+ * Sine Cosine. 
+ * 
+ * Linear movement with sin() and cos(). 
+ * Numbers between 0 and PI*2 (TWO_PI which angles roughly 6.28) 
+ * are put into these functions and numbers between -1 and 1 are 
+ * returned. These values are then scaled to produce larger movements. 
+ */
+ 
+float x1, x2, y1, y2;
+float angle1, angle2;
+float scalar = 70;
+
+void setup() {
+  size(640, 360);
+  noStroke();
+  rectMode(CENTER);
+}
+
+void draw() {
+  background(0);
+
+  float ang1 = radians(angle1);
+  float ang2 = radians(angle2);
+
+  x1 = width/2 + (scalar * cos(ang1));
+  x2 = width/2 + (scalar * cos(ang2));
+  
+  y1 = height/2 + (scalar * sin(ang1));
+  y2 = height/2 + (scalar * sin(ang2));
+  
+  fill(255);
+  rect(width*0.5, height*0.5, 140, 140);
+
+  fill(0, 102, 153);
+  ellipse(x1, height*0.5 - 120, scalar, scalar);
+  ellipse(x2, height*0.5 + 120, scalar, scalar);
+  
+  fill(255, 204, 0);
+  ellipse(width*0.5 - 120, y1, scalar, scalar);
+  ellipse(width*0.5 + 120, y2, scalar, scalar);
+
+  angle1 += 2;
+  angle2 += 3;
+  
+}
+