org.jaitools.demo.jiffle.life-toroid.jfl Maven / Gradle / Ivy

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/*
 * An example Jiffle script: Conway's Game of Life
 * played in a toroidal (no edges) world.
 *
 * See program: jeitools.demo.jiffle.GameOfLife
 * for a description and example of use.
 *
 * Author: Michael Bedward
 */

n = 0; 
foreach (iy in -1:1) { 
  yy = y() + iy; 
  yy = con(yy < 0, height() - 1, yy); 
  yy = con(yy >= height(), 0, yy); 

  foreach (ix in -1:1) { 
    xx = x() + ix; 
    xx = con(xx < 0, width()-1, xx); 
    xx = con(xx >= width(), 0, xx); 
    n += world[$xx, $yy]; 
  } 
} 

n -= world; 
nextworld = (n == 3) || (world && n==2);