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Examples for Processing (BETA) version 91+. If you have a previous version, use the examples included with your software. If you see any errors or have comments, please let us know.

Loop
by REAS <http://reas.com>

The loop() function causes draw() to execute continuously. If noLoop is called in setup() the draw() is only executed once. In this example click the mouse to execute loop(), which will cause the draw() the execute continuously

Created 09 December 2002

    
// Loop 
// by REAS <http://reas.com> 

// The statements in the setup() function 
// execute once when the program begins 
void setup() 
{ 
  size(200, 200);  // Size should be the first statement 
  stroke(255);     // Set line drawing color to white 
  noLoop(); 
} 
 
float y = 100; 
 
// 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 - 1; 
  if (y < 0) { y = height; } 
  line(0, y, width, y);  
} 
 
void mousePressed() 
{ 
  loop(); 
}
 







    
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