* How can the values of rivers (movement, defense, etc) be changed?

Each terrain type in terrain.txt has a section named ENV_RIV_CUR. Changing values in there changes the values for that terrain with a river. Defense can't be changed for rivers, but the rest of the values can. The same goes for roads and mines, by the way.

- Joe Rumsey, CTP programmer

* Could I have a terraform function adding a river to a square (i.e., a canal)?

No, sorry.

- Joe Rumsey, CTP programmer

* What are POWER_POINTS in the units.txt file?

An obsolete feature, doesn't do anything.

- Joe Rumsey, CTP programmer

* What does the flag ONLY_BUILD_ONE used by Settlers mean? Isn't it possible for a city to build more than one?

Normally a city will keep churning out the last unit in the queue. This flag makes it build just one and then stop. Has nothing to do with how many you can build, just changes the interface's behavior.

- Joe Rumsey, CTP programmer

* Why do some units have two techs that make them obsolete? For instance the Legion which is obsolete with both Gunpowder and Cannon-making, even though Gunpowder is a prerequisite for Cannon-making.

You can have multiple obsoleting advances. But even using your example, it IS possible to acquire cannon-making before gunpowder through diplomacy or espionage (including just capturing a city from someone who has cannon-making.

- Joe Rumsey, CTP programmer

* Is it possible to use at least some wonder flags for improvements and vice versa?

No. They are two separate sets of flags.

- Joe Rumsey, CTP programmer

* I like the MOVEMENT_TYPE_MOUNTAIN function and would like to create other movement limitations like MOVEMENT_TYPE_DESERT and/or expand which terrains use the MOVEMENT_TYPE_MOUNTAIN. Is this possible, and if so, how?

There's a small chance you might be able to get close to what you want via SLIC, but it would be complicated and prone to loopholes, so for practical purposes the answer is no. The distinction between mountains and regular land is too deeply ingrained in the code, we don't have a general mechanism accessible from the text files for doing it.

- Joe Rumsey, CTP programmer

* How can I made an improvement that is only buildable in coastal cities such as a Harbor? Or only buildable on a river like a Dam? Would a Coastal Fortress (City Walls against naval units) be possible?

No. But SLIC is really close to allowing a pretty cheesy way of doing it, all it's missing is a function to check and see if a city is next to water or on a river. We'll look into adding that for the patch, it would be a good thing and not hard. Thanks for the idea.

- Joe Rumsey, CTP programmer

* What is the difference between IMPROVEMENT_FLAG_IS_RELIGIOUS and IMPROVEMENT_FLAG_CATHEDRAL used by both the Temple and Cathedral?

Wonders can be set to have an effect on buildings with the RELIGIOUS flag set and with buildings with the CATHEDRAL flag set. They don't have any direct effect on the building they're attached to.

- Joe Rumsey, CTP programmer

*Why are many costs expressed in odd numbers? For instance, 5780 production to build the Emancipation wonder or 135 to build a Diplomat?

Because our balancing showed that 134 was too little for a diplomat and 136 too much :-)

- Joe Rumsey, CTP programmer

Back to main Modification page

Apolyton Civilization Site Copyright © Robert Plomp and Jeroen Schweitzer
All trademarks and trade names are the properties of their respective owners.