Anyone got any info?

TILEIMP_TRADING_POST {
Icon ICON_TILEIMP_TRADING_POST #defined in the tileimpicon.txt
Tooltip TOOLTIP_TILEIMP_SELECT_ATM1_BUTTON #?
Statusbar STATUSBAR_TILEIMP_SELECT_ATM1_BUTTON #?
Level 1 #? but not worried about it
Class:ATM #probably in exe so not worrying about it

ConstructionTiles 1 #?
ConstructionTiles 21 #?
ConstructionTiles 22 #?

CantBuildOn TERRAIN_WATER_BEACH #types of terrain you can't build on... not a problem
CantBuildOn TERRAIN_WATER_DEEP
CantBuildOn TERRAIN_WATER_RIFT
CantBuildOn TERRAIN_WATER_SHALLOW
CantBuildOn TERRAIN_WATER_SHELF
CantBuildOn TERRAIN_WATER_TRENCH
CantBuildOn TERRAIN_WATER_VOLCANO

Excludes:ATM #Things you can't build on top of the tile improvement once built
Excludes:Farm
Excludes:LandDetector
Excludes:Mine
Excludes:OceanFarm
Excludes:OceanDetector
Excludes:OceanATM
Excludes:Structure1
Excludes:Structure2
Excludes:OceanMine

TerrainEffect { #What the effect of the tile improvement has, and where it can be built
Terrain TERRAIN_BROWN_HILL
Terrain TERRAIN_DESERT
Terrain TERRAIN_FOREST
Terrain TERRAIN_GRASSLAND
Terrain TERRAIN_HILL
Terrain TERRAIN_JUNGLE
Terrain TERRAIN_PLAINS

BonusGold 10 #The amount of gold this improvement gives
EnableAdvance ADVANCE_HORSE_RIDING #after this tech you can build
ProductionCost 250 #how much PW the improvement costs
ProductionTime 2 #how many turns to build
TilesetIndex 23 #???????????

Level & Class determine where in the tileimprovement are it will appear under. Level 1 Class ATM would be the top money tile improvement under the land section.

Each area (Land, Ocean, Special, and Terraform) have 3 rows of 4. These are your levels 1-3. Class determines the column they will fall in with all but terraforming.

code:

---

                    Class Table
Type      Col 1          Col 2         Col 3             Col 4
-----------------------------------------------------------------
Land      Farm           Road          Mine             ATM
Ocean   OceanFarm   OceanMine   OceanATM     OceanRoad
Special   Structure1    Structure2    LandDetector  OceanDetector

---

I have no idea what the ConstructionTiles is refering to.
Tilesetindex is the big key. This refers to the gtset???.til files and determins the graphic of the tile improvement. At the moment I don't think there is any released utility to help us add new terrains or tile improvement graphics to the game. Another note, the class can have an impact on the graphic. Anything I tried to put under oceanroad level 2 or 3 ended up looking like an ocean road regardless of what i used for the tileset index. I assume this is because roads link up to each other. If you are adding your own I suggest using Structure2. Unless you have a mod that puts the pillbox and barbed wire in the game (like the WW2 senario) you have 3 blank areas to add what you wish.