[francoisD]

i have just found out another soution to the problem of big battles:

the ai purchase loop should be redone until the total number of units of the ai is below 500. indeed 500 is a proof that the ai has not enough points.

this is a very very very small modification of the code, however, it raises strongly the duration of the purchase step, because you rely solely on probabilities...

and it might never stop...