Initial Commit

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

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+/**
+ * Redraw. 
+ * 
+ * The redraw() function makes draw() execute once.  
+ * In this example, draw() is executed once every time 
+ * the mouse is clicked. 
+ */
+ 
+float y;
+ 
+// The statements in the setup() function 
+// execute once when the program begins
+void setup() {
+  size(640, 360);  // Size should be the first statement
+  stroke(255);     // Set line drawing color to white
+  noLoop();
+  y = height * 0.5;
+}
+
+// The statements in draw() are executed until the 
+// program is stopped. Each statement is executed in 
+// sequence and after the last line is read, the first 
+// line is executed again.
+void draw() { 
+  background(0);   // Set the background to black
+  y = y - 4; 
+  if (y < 0) { y = height; } 
+  line(0, y, width, y);  
+} 
+
+void mousePressed() {
+  redraw();
+}
+
+