java/examples/Topics/Drawing/Animator/applet/Animator.java

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+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 Animator extends PApplet {
+
+/**
+ * Animator.
+ * 
+ * Click and drag to draw and start the program.
+ * 
+ * A simple animation tool that displays a continuous cycle of
+ * twenty-four images. Each image is displayed for 30 milliseconds 
+ * to create animation. While each image is displayed, it\u2019s possible 
+ * to draw directly into it by pressing the mouse and moving the cursor. 
+ * 
+ */
+
+int currentFrame = 0;
+PImage[] frames = new PImage[24];
+int lastTime = 0;
+
+public void setup() 
+{
+  size(640, 200);
+  strokeWeight(12);
+  smooth();
+  background(204);
+  for (int i = 0; i < frames.length; i++) {
+    frames[i] = get(); // Create a blank frame
+  }
+}
+
+public void draw() 
+{
+  int currentTime = millis();
+  if (currentTime > lastTime+30) {
+    nextFrame();
+    lastTime = currentTime;
+  }
+  if (mousePressed == true) {
+    line(pmouseX, pmouseY, mouseX, mouseY);
+  }
+}
+
+public void nextFrame() 
+{
+  frames[currentFrame] = get(); // Get the display window
+  currentFrame++; // Increment to next frame
+  if (currentFrame >= frames.length) {
+    currentFrame = 0;
+  }
+  image(frames[currentFrame], 0, 0);
+}
+
+
+  static public void main(String args[]) {
+    PApplet.main(new String[] { "Animator" });
+  }
+}