java/examples/Basics/Input/StoringInput/applet/StoringInput.java

@@ -0,0 +1,60 @@
+import processing.core.*; 
+
+import java.applet.*; 
+import java.awt.*; 
+import java.awt.image.*; 
+import java.awt.event.*; 
+import java.io.*; 
+import java.net.*; 
+import java.text.*; 
+import java.util.*; 
+import java.util.zip.*; 
+import java.util.regex.*; 
+
+public class StoringInput extends PApplet {
+
+/**
+ * Storing Input. 
+ * 
+ * Move the mouse across the screen to change the position
+ * of the circles. The positions of the mouse are recorded
+ * into an array and played back every frame. Between each
+ * frame, the newest value are added to the end of each array
+ * and the oldest value is deleted. 
+ */
+ 
+int num = 60;
+float mx[] = new float[num];
+float my[] = new float[num];
+
+public void setup() 
+{
+  size(200, 200);
+  smooth();
+  noStroke();
+  fill(255, 153); 
+}
+
+public void draw() 
+{
+  background(51); 
+  
+  // Reads throught the entire array
+  // and shifts the values to the left
+  for(int i=1; i<num; i++) {
+    mx[i-1] = mx[i];
+    my[i-1] = my[i];
+  } 
+  // Add the new values to the end of the array
+  mx[num-1] = mouseX;
+  my[num-1] = mouseY;
+  
+  for(int i=0; i<num; i++) {
+    ellipse(mx[i], my[i], i/2, i/2);
+  }
+}
+
+  static public void main(String args[]) {
+    PApplet.main(new String[] { "StoringInput" });
+  }
+}