Atlas default player settings suboptimal for RMS

[FeXoR]

Error description: Random maps don't generate properly (in some circumstances)

Reason: Not all players civilizations are set

To reproduce:

• Open Altas
• Reduce the number of players to 2
• Generate "Fortress" random map (working)
• Increase the number of player to 3
• Generate "Fortress" random map (crashing)

This is due to player 3 will have no civ. On other maps that "only" leads to warnings about that and player 3 will get Athenian starting entities despite it's civ (which is undefined ofc.).

How to fix: I recommend to check all buttons for "civilization" in the player settings by default (even if the number of player are reduced, a random map is generated and then the number of players is increased again). That is the initial state (if player numbers are NOT changed) anyway. Additionally I'd suggest to force all players civilizations to be set if the "Generate map" button is pressed.

If it's wanted to generate maps with starting entities only (so without an preset civ) to enable RMS as a basis of Skirmish Maps starting entities for the case civ = undefined needs to be added. However, due to walls not having the same length for all civs and civs have different NUMBER of starting entities (e.g. Iberian civ bonus walls) RMS with walls will never be possible that way.