Problem with the implementation of the game.

[zeimusu]

There is a problem with the rules of life implemented here.

I experimented with setting up initial patterns, and they are not evolving as expected.

For example, creating three cells

 cell[5][5].alive, cell[5][5].nextState = true, true
 cell[5][6].alive, cell[5][6].nextState = true, true
 cell[5][7].alive, cell[5][7].nextState = true,true

(and all other cells turned off) should create a "blinker" that has a period 2 oscillation

                    *               
    ***   ->        *       ->    * * *
                    *

I also could not create a "glider".

I suspect there is a mistake with the lines

c.alive = c.nextState
c.nextState = c.alive

It is changing the alive/dead state of the cells at the same time as it is reading them to decide which cells live and which die.