This is something that bothered me with the previous game which I expected to be fixed with Civ4, and I'm disappointed that it wasn't.
The problem is that you can't tell from looking at the tech tree which Wonders have been built yet. Yes, you can I think check in another screen, but it would be much more convenient to have the info available in the tech screen.
All that needs to be done is to have colour coded text for Wonders that have and have not been built. For example, for a Wonder which is yet to be built, the text referring to it could be in yellow. It could be greyed out if it has already been built.
Similarly with units and buildings which require certain other techs or certain resources. For example a swordsman requires iron to build. If you have iron in your resource list, the text "requires iron" could be in blue, to denote that you already have iron. If you don't have iron, the text could be in red.
These two minor changes would make it so much easier to see at a glance what you do and don't have available to build, and thus help you choose which tech to research next.
The problem is that you can't tell from looking at the tech tree which Wonders have been built yet. Yes, you can I think check in another screen, but it would be much more convenient to have the info available in the tech screen.
All that needs to be done is to have colour coded text for Wonders that have and have not been built. For example, for a Wonder which is yet to be built, the text referring to it could be in yellow. It could be greyed out if it has already been built.
Similarly with units and buildings which require certain other techs or certain resources. For example a swordsman requires iron to build. If you have iron in your resource list, the text "requires iron" could be in blue, to denote that you already have iron. If you don't have iron, the text could be in red.
These two minor changes would make it so much easier to see at a glance what you do and don't have available to build, and thus help you choose which tech to research next.
I really like this idea.
