Initial Commit

Java/Processing/processing-3.3.6/modes/java/examples/Basics/Structure/Functions/Functions.pde

@@ -0,0 +1,29 @@
+/**
+ * Functions. 
+ * 
+ * The drawTarget() function makes it easy to draw many distinct targets. 
+ * Each call to drawTarget() specifies the position, size, and number of 
+ * rings for each target. 
+ */
+
+void setup() {
+  size(640, 360);
+  background(51);
+  noStroke();
+  noLoop();
+}
+
+void draw() {
+  drawTarget(width*0.25, height*0.4, 200, 4);
+  drawTarget(width*0.5, height*0.5, 300, 10);
+  drawTarget(width*0.75, height*0.3, 120, 6);
+}
+
+void drawTarget(float xloc, float yloc, int size, int num) {
+  float grayvalues = 255/num;
+  float steps = size/num;
+  for (int i = 0; i < num; i++) {
+    fill(i*grayvalues);
+    ellipse(xloc, yloc, size - i*steps, size - i*steps);
+  }
+}