Freeciv generator 6

This patch adds a new map generator that creates map that consist of a single main landmass with each player given a peninsula.

It is Ticket #3489 in the Freeciv bug tracking system.

The purpose of the patch is to reduce the amount of turns spent before first contact with the other players. Since all the players start on one continent, games can get interesting faster.  To further speed up things, roads are automatically created at the polar caps and down the connecting isthmus between the upper and lower polar caps.


Screen shot 1

1:
> set aifill 5
> set generator 6
Savegame Screenshot

Screen shot 2

2:
> set generator 6
> set landmass 15
> set aifill 4
Savegame Screenshot

Sceen shot 3

3:
> set generator 6
> set landmass 60
> set xsize 40
> set ysize 25
> set aifill 4
Savegame Screenshot