civctp2 / civctp2

git svn import of http://ctp2.darkdust.net/anonsvn/

CivCTP2

• Git SVN import of http://ctp2.darkdust.net/anonsvn/
• Originally hosted at: https://ctp2.darkdust.net/
• Forums: https://apolyton.net/forum/other-games/call-to-power-2/ctp2-source-code-project

Original readme files

• Activision CTP2 Source Code_Readme.txt
• Apolyton CTP2 Source Code_Readme.txt

About

This is the Apolyton version of the Call to Power II (CTP2) source code based on the released source code from Activision, that did not include the patch. The code has been stripped of comments, but is otherwise complete as far as Activision's code goes. It was originally built with Microsoft Visual Studio 6.0. In the mean time the Apolyton code was modified so that it works with later versions. This version also builds on Linux (i386 and x86_64), Ubuntu, Pandora, and Pyra.

On Linux, CTP2 builds as 32 and 64 bit application, on Windows only as 32 bit application. To allow 64 bit builds on Windows, assembler code and the Miles Sound System library needs to be replaced.

Note that the game files are not included in this repository, you can get them from the original CD or from the GoG version.

Clone and complete your working copy

First, clone this repository into a directory of your choice. It will contain, beside some others, the following subdirectories:

• ctp2_code
• ctp2_data
• Scenarios

The directory ctp2_code contains the source code and will contain the generated executable. The directory ctp2_data contains the data files, such as sounds, images, and the database text files that contain all data for the game objects such as move points for units.

Even so the source code of CTP2 has been published, CTP2 is not free software. That means, we cannot distribute CTP2 and its code as a standalone product. Therefore, you have to add in the missing components from your copy of CTP2.

If you already have a copy of CTP2 installed, you can just copy everything from this repository into your installation, which is typically found in C:\Program Files\Activision\Call to Power II\.

If you do not have a copy already installed, you can get the files from the CD. The CD contains two files civlang.ctp and civmain.ctp (the extensions might differ). These files are zip files. The file civmain.ctp contains all files that are common to all language versions, civlang.ctp contains all files specific to your language version. Unzip these files and copy their content over your working copy without replacing files that already exist.

If you have the GoG version, use innoextract to extract all the required files (you can sudo apt install innoextract if you need) from the setup_call_to_power2_2.0.0.13.exe windows installer. For example innoextract -m -I app setup_call_to_power2_2.0.0.13.exe will extract the appfolder that contains all the game files, which are in the same subfolders as in the CD version: ctp2_data, ctp2_program and Scenarios. Copy these folders over your working copy without replacing files that already exist. Now you should have those directories in your working copy.

• ctp2_code
• ctp2_data
• Scenarios
• ctp2_program

The folder ctp2_program is a stripped down version of ctp2_code without the source code and is the version that was shipped with the game. It is not needed for compiling and running the game. If it is an from a previous installation and you have some save games you want to use in your working copy then copy the folder /ctp2_program/ctp/save/ and all its content to /ctp2_code/ctp/save/.

Install the music and videos

The Windows version supports CD audio music, and the Linux version supports ripped CD music files compressed as ogg (like found in the GoG version). The Audio tracks in the GoG version are named Track02.ogg to Track11.ogg and in the ctp2_program/ctp/music folder, which should be copied to ctp2_code/ctp/music, if you want to use them in your working copy.

The music and the videos are not needed for the playing CTP2. However, if you want to use them you can just use the CD on Windows. However, the GoG audio tracks are not supported on Windows, but you can play them in anther player such as VLC, while playing the game.

As the Linux version does not support direct play from the CD-ROM, you need to rip the music-files from the CD and put them on your disk. The music-files can be ripped with crip (http://bach.dynet.com/crip/) or cdparanoia.

Alternatively, you can download the music-files from YouTube. For that, go in the terminal to the directory ctp2_code/ctp/music (create it if necessary) and run the following code:

youtube-dl  -x -t -i --audio-format vorbis --audio-quality 0 'https://www.youtube.com/watch?v=DtQBlVirrkU&list=PL5Z8d0ZfZ8SbHNEFnlR3jckHDmuZjBUaT'
mln -s 'Call to Power 2 - * - *' Track{#1+1}.ogg
i=11; files=(Track*.ogg); for ((f=${#files[@]}-1; f>=0; f--)); do track=$(printf "Track%02d.ogg" $i); mv "${files[$f]}" $track; ((i--)); done

You may have to install youtube-dl and mln.

If you want to play the videos in the game, copy them from the directory Setup/data/Max/ctp2_data/default/videos/ on the CD to ctp2_data/default/videos/ of your installation. You can also do this on Windows if you do not want to have the CD in your drive.

You may have to re-encode the videos, however we are not sure about that, because we do not have a CD and a working CD-ROM drive to test it. It might be enough to install the right codec. For re-encoding you can execute the following line from the ctp2_data/default/videos/ directory:

shell> for i in `ls /media/cdrom/Setup/data/Max/ctp2_data/default/videos/`; do mencoder -ovc lavc -lavcopts vcodec=mpeg4  -srate 44100 -af resample=44100 -oac lavc  /media/cdrom/Setup/data/Max/ctp2_data/default/videos/$i -o $i; done 

This will also copy the videos to that directory.

Building on Windows

CTP2 was originally built on Windows with Visual Studio 6. Today, the code compiles on Visual Studio 2017 and 2019 and probably also later. The code has not been compiled on Windows with any other compiler than the Visual Studio compiler. Beside a version of Visual Studio you need:

1. The Windows SDK installed on your computer for DirectX support
2. An environment variable named CDKDIR on your computer. In Windows XP/2000, go to Control Panel->System->Environment Variables, and add it, with it's value set to [your source path]/ctp2/bin, the directory with bison, flex, and other tools in it. On Windows 10 it is Control Panel->System->Advanced System Settings->Environment Variables or PC Settings->Info->Advanced System Settings->Environment Variables or press Windows+Pause ->Advanced System Settings->Environment Variables
3. A tmp directory in the root directory of the hard drive where the code is. If your source code working copy is on drive C: then create C:\tmp. If you have the code on another drive such as E: than it is E:\tmp.

Once all these are in place, open the Visual Studio project file [your source path]/ctp2_code/ctp/civctp.sln in Visual Studio. The project comes with several configurations. The most important ones are:

• Debug: Unoptimized debug build, with logging, asserts, and a memory leak detector. The leak detector makes it actually slow.
• Final: The build that was shipped with the game.
• Final with Logging: Like Final but with logging, which is very useful for AI debugging.
• Release: Not needed for us, it is close to the Final version but does not include the CD check that the Final version originally included.
• Debug Browse: Like Debug but seems allow also to browse the stack external Microsoft code. So far untested. It requires MSVCRTD.dll, which needs to placed into the folder ctp_code/ctp/ folder. It might be included in your copy of Visual Studio, but it can also be downloded from the internet, if you search for it.

The executables these configurations generate are in [your source path]/ctp2_code/ctp/ and called:

• CivCTP_dbg.exe for Debug
• ctp2.exe for Final
• ctp2log.exe for Final with Logging
• ctp2r.exe for Release
• CivCTP_dbg_browse.exe

CTP2 can directly be run from Visual Studio, to do so press F5 if you want to run it on the debugger, which will be slow and does not make sense for a Final version. To run without debugging, press Ctrl F5. If necessary, CTP2 will be built, first. Some of the map plugins may fail to build the first time in a clean project. Just try compile those again.

Building on Linux

You will probably need GCC 5.x or later to build. The code doesn't seem to build on GCC 4.8.

You will need SDL 2.0, SDL_Mixer 2.0, SDL_Image 2.0. To be able to play movies you also need ffmpeg libraries (some). You will also need byacc and flex. On Debian and friends, use sudo apt install libsdl2-dev libsdl2-mixer-dev libsdl2-image-dev libtiff-dev libavcodec-dev libavformat-dev libswscale-dev byacc flex to install them all.

The build itself is pretty classing and straight forward:

./autogen.sh
CFLAGS="$CFLAGS -O3 -fuse-ld=gold" CXXFLAGS="$CXXFLAGS -fpermissive -O3 -fuse-ld=gold" ./configure --enable-silent-rules
make -j$(nproc)

If you want to build a debug version it is:

./autogen.sh
CFLAGS="$CFLAGS -O0 -fno-omit-frame-pointer -fuse-ld=gold" CXXFLAGS="$CXXFLAGS -fpermissive -O0 -fno-omit-frame-pointer -fuse-ld=gold" ./configure --enable-silent-rules --enable-debug
make -j$(nproc)

Most optimizations are completely disabled at -O0 even if individual optimization flags are specified. In case CTP2 becomes to slow to be useful you can use higher levels of optimization such as -O1, or -O2.

You can look at ./configure for options, but there aren't many.

Also, note that make -j$(nproc) may fail the first time. Some files are auto-generated and the make dependencies don't catch that.

Finally, you may have to use gold instead of ld for link (add -fuse-ld=gold to your CFLAGS & CXXFLAGS if needed).

When the build is over, you have to copy the mapgen libraries from ctp2_code/mapgen/.libs/*.so to ctp2_code/ctp/dll/map/. So do something like cp -v ctp2_code/mapgen/.libs/*.so ctp2_code/ctp/dll/map/ if you are in the base directory of your working copy. This must be done manually, even so the libraries should be created there, automatically (not implemented/bug).

If you get the message on the terminal: Failed to load module "atk-bridge". Install at-spi with sudo apt install at-spi.

Running

When everything is ready, simply go to the program folder, for example with cd ~/ctp2/ctp2_code/ctp and launch the game with ./ctp2. There are a few command line option like -fullscreen that can be useful. -fullscreen launches CTP2 into fullscreen, otherwise CTP2 runs in a window, which however you cannot resize.

Installation

CTP2 can be installed on your Linux computer for all users in principle. Just run make install in the root folder of your working copy. However, this is not tested and so it is unknown whether this installs everything needed.

Converting old Linux save-games to new unified format

The old format of Linux save-games was not compatible with that of windows save-games. The format is now unified such that each OS can open save-games from the other. However, due to this, old Linux save-games need to be converted to the new format if you want to continue with those under the new ctp2 version (after 22dd1804804). A game-converter-version was created for this purpose (see, #77), which can load the old format but saves games to the new format.