stop= 0; %wait for a quit button push
run = 0; %wait for a draw
freeze = 0; %wait for a freeze
while (stop==0)
if (run==1)
%nearest neighbor sum
sum(x,y) = cells(x,y-1) + cells(x,y+1) + ...
cells(x-1, y) + cells(x+1,y) + ...
cells(x-1,y-1) + cells(x-1,y+1) + ...
cells(3:n,y-1) + cells(x+1,y+1);
% The CA rule
cells = (sum==3) | (sum==2 & cells);
%draw the new image
set(imh, 'cdata', cat(3,cells,z,z) )
%update the step number diaplay
stepnumber = 1 + str2num(get(number,'string'));
set(number,'string',num2str(stepnumber))
end
if (freeze==1)
run = 0;
freeze = 0;
end
drawnow %need this in the loop for controls to work
end