Difference between revisions of "City of Heroes on Linux"

Revision as of 18:49, 17 April 2010

See also City of Heroes on Mac

Overview

It is possible to run City of Heroes on Linux through a technology called WINE (WINE Is Not an Emulator). By porting the Windows API libraries that City of Heroes uses to Linux, WINE effectively "fools" City of Heroes into thinking that it is actually running on Windows. A program called Cedega allows City of Heroes to be relatively user-friendly to configure and run.

How It Works

Most programs that run on Windows do not directly access the hardware in one's machine. For example, if a program needs a file from the hard drive, it does not talk directly to the hard drive. Instead, it calls a function in Windows, which in turn talks directly to the hard drive.

The primary advantage of this type of abstraction is that programs do not have to worry about the hardware-specific details of every device that is installed. Before this level of abstraction was achieved, every program had to have special drivers for every device that might be used. Now, only one set of drivers must be installed on Windows, which can be shared through a common set of functions that Windows provides (called the Application Programming Interface, or API).

A special set of functions may be grouped into a programming library. Such libraries typically handle some specific functionality. For example, there are two primary graphics libraries in use today to program games, Microsoft's DirectX and OpenGL, a graphics library that is largely implemented through open source software. Since DirectX is a proprietary (or closed source) software library, programs that use it will typically only run on Microsoft's software, which is the various versions of Windows. Since OpenGL has Windows and Linux versions, however, programs that run using this library are much more easily converted between Windows and Linux.

The open source community developed an application called WINE that implements many of the DirectX library functions using calls to the functions in OpenGL. When this application is installed on Linux, programs that use DirectX may be able to run, because they believe they are calling DirectX functions, and those functions work similarly under Linux and Windows.

Cedega

A company named TransGaming has developed an application named Cedega that makes the task of installing WINE and configuring Linux to run games much easier. Cedega is commercial software that requires a $5 per month (or $55 per year) subscription fee to maintain the latest version, but many users use Cedega to make ease of installation and use of games running on WINE easier.

External Links

• List of City of Heroes Forums Guides about installing and playing City of Heroes on Linux.
• Cedega, an application published by TransGaming, to make installation and configuration of City of Heroes on Linux more user-friendly.
• City of Heroes and City of Villains entries in the Cedega games database
• Cedega forum for City of Heroes and City of Villains
• Unofficial Transgaming Wiki page dedicated specifically to information about running City of Heroes on Linux
• WINE, the underlying technology that allows Windows programs to run on Linux