Re: [glob2-devel] Map.h, map.cpp and gradients

[Eli]

On Jul 6, 2005, at 9:58 PM, Andrew Sayers wrote:

> So, for the square to the left:
>           0*256*256*256 + (255-0)*256*256 +   0*256 +   0 == 16711680
> For the square to the right:
>         255*256*256*256 + (255-0)*256*256 + 253*256 +   0 == 4294966528
> For the square to the top:
>         254*256*256*256 + (255-0)*256*256 + 254*256 +   0 == 4278189568
> For the square to the bottom:
>         255*256*256*256 + (255-0)*256*256 +   0*256 + 255 == 4294902015
> And for the square it's standing on,
>         254*256*256*256 + (255-0)*256*256 + 253*256 +   0 == 4278189312
>
> So it follows the highest gradient, to the right.

That doesn't consider the case where the wheat is right next to the 
tower. Take for example:

A glob is standing on a perfectly open plain. Seven squares to his left 
is a patch of wheat. Four squares to his right is a patch of wheat. 
Five squares to his right is an enemy tower. All of this is well known 
territory and there are no forbidden areas.

To his right, he would walk towards the tower:
Forbidden: 255
Danger: 4
Resource: 252
Shadow: 0

To his left, he would walk away from the tower:
Forbidden: 255
Danger: 2
Resource: 249
Shadow: 0

Staying where he is now, he is still out of any danger he's interested 
in:
Forbidden: 255
Danger: 3
Resource: 251
Shadow: 0

To the top and bottom, he would move away from anything he wants to get 
to and nothing he wants to get away from. To go left, he moves away 
from resources, and to go right, he moves towards danger. He just 
stands in the same place, not doing anything useful. (at least until a 
wily player comes and smacks him with a forbidden area to make him 
move...)