Conway's Game Of Life

[retepsnikrep]

Thread resurrection. Code help please.

I'm working on this using a sequential 256 led neopixel string which is laid out in a prebuilt 16x16 matrix panel.

The neopixel string works fine but is like a snakes and ladder board in that starting from bottom left corner you go along the bottom up at the end of the row then back along then up a row and along etc etc. (Back and forth)

This arrangement is of course different to the actual LIFE array in PIC memory which is arranged as per the diagram.

So I want to transfer data from the Life byte array into the NeoPixel byte array adjusting the NeoPixel(address) when necessary.

The diagram might make it easier to see what i mean..

'Life Array 16x16 in memory.     'Life Array 16x16 Neopixel Matrix String.  

'         Top                                  Top
'240 -------------- 255             '255 -------------- 240
'224 -------------- 239             '224 -------------- 239
'208 -------------- 223             '223 -------------- 208
'192 -------------- 207             '192 -------------- 207
'176 -------------- 191             '191 -------------- 176
'160 --x----------- 175             '160 --x----------- 175
'144 ---x---------- 159             '159 ----------x--- 144
'128 -xxx---------- 143             '128 -xxx---------- 143
'112 -------------- 127             '127 -------------- 112
'96  -------------- 111              '96  -------------- 111
'80  -------------- 95               '95  -------------- 80
'64  -------------- 79               '64  -------------- 79
'48  -------------- 63               '63  -------------- 48
'32  -------------- 47               '32  -------------- 47
'16  -------------- 31               '31  -------------- 16
'0   -------------- 15                '0   -------------- 15   
'        Bottom                              Bottom

Hopefully you see the problem, I can't see an efficient way to transfer the data from the LIFE to the NEOPIXEL array whilst correcting the address on the alternate lines..

A simple Pixel(A) = Life(A) works for 0-15, 32-47 etc etc but not for 16-31, or 48-63 etc etc as the data ends up on the wrong part of the screen..

Any brilliant ideas.

You can see the problem on 144-159 with test data, it ends up on the wrong part of the screen.