import javax.swing.JFrame;
/**
* A cellular automaton consists of a grid of cells and follows a set of rules
* that update the grid over time.
*/
public abstract class Automaton {
protected GridCanvas grid;
/**
* Applies rules to update the grid.
*/
public abstract void update();
/**
* The simulation loop.
*
* @param rate frames per second
*/
private void mainloop(int rate) {
while (true) {
// update the drawing
this.update();
grid.repaint();
// delay the simulation
try {
Thread.sleep(1000 / rate);
} catch (InterruptedException e) {
// do nothing
}
}
}
/**
* Creates a JFrame and runs the automaton.
*
* @param title the frame title
* @param rate frames per second
*/
public void run(String title, int rate) {
// set up the window frame
JFrame frame = new JFrame(title);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setResizable(false);
frame.add(this.grid);
frame.pack();
frame.setVisible(true);
this.mainloop(rate);
}
}
