Clarify key concepts

[guillaume-alvarez]

The gameplay is quite obscure at the moment: different numbers are modified from discoveries that are not clear at all for player. Initial behavior is to align almost every thing as percentage but it is clearly not working. Their behavior should be simplified in core model and appear in UI:

Influence model

• influence is the strength of the empire control on every tile, decreasing from the tribe/village/city source
  • shown when selecting a tile
• terrain cost is the minimum influence required to control a tile
  • shown in discoveries screen
• military power is an help to increase influence in focused situations (wars, territory near armies)
  • shown on armies button, per armies in armies screen
• growth is the increase of influence power per turn (should try implementing it as a simple mille value applied every turn)
  • should be shown (+x/turn) next to current source power
• stability is the limit to the area covered by influence
  • detailed in policies screen
• instability is the missing stability and a chance for revolt when superior to a tile influence
  • shown on policies button
  • detailed in policies screen

Discovery model

• discovery progress is a percentage of the points for next discovery, increased from a base level + tiles of a certain type depending on the discovery + bonus from past discoveries
  • shown on discoveries button
  • should be detailed on discoveries screen
• discovery bonus is added at each turn to discovery progress
  • should be shown on discoveries screen