124 lines
5.1 KiB
Markdown
124 lines
5.1 KiB
Markdown
````````````````````````````````````````````````````````````````````````
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Samuel ‘Kaiser’ Villarreal and James ‘Quasar’ Haley Present
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C H O C O L A T E
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______________________________._________________________
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/ _____/\__ ___/\______ \ \_ _____/\_ _____/
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\_____ \ | | | _/ || __) | __)_
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/ \ | | | | \ || \ | \
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/_______ / |____| |____|_ /___|\___ / /_______ /
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\/ \/ \/ \/
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````````````````````````````````````````````````````````````````````````
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## What is it?
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Chocolate Strife is the most accurate and complete recreation of Rogue
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Entertainment’s “Strife: Quest for the Sigil.” It was created through more
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than four years of reverse engineering effort with the blessings of the
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original programmers of the game.
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## Why?
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The source code for Strife was lost, which means, unlike the code for all the
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other commercial DOOM-engine games, it cannot be released. The only access we
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have to the code is the binary executable file. Tools such as IDA Pro have
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been employed to disassemble and decompile the executable, which was cross-
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referenced against the Linux DOOM and DOS Heretic sources and painstakingly
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combed over multiple times, instruction-by-instruction, to ensure that the
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resulting Chocolate Doom-based executable is as close as possible to the
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original.
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## Is it Legal?
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Chocolate Strife was originally reverse-engineered from the DOS Strife
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binaries. Although reverse engineering is legally a protected activity, this
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nonetheless left some open questions about its legal status.
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In 2014, a new commercial release of Strife was published (Strife: Veteran
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Edition) based on the Chocolate Strife code, and developed by the authors of
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Chocolate Strife under commercial license. The release of Strife: Veteran
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Edition, along with its GPL-licensed source code, constitutes tacit approval
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for the legal status of Chocolate Strife by its current copyright holder.
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## Is it Perfect?
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Almost, but not entirely! That’s where you come in. Help us by reporting any
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discrepancies you may notice between this executable and the vanilla DOS
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program!
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However, do *not* report any glitch that you can replicate in the vanilla EXE
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as a bug. The point of Chocolate Strife, like Chocolate Doom before it, is to
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be as bug-compatible with the original game as possible. Also be aware that
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some glitches are impossible to compatibly recreate, and wherever this is the
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case, Chocolate Strife has erred on the side of not crashing the program,
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for example by initializing pointers to NULL rather than using them without
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setting a value first.
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## What are some known problems?
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The demo version is *not* supported, and there are not any current plans to
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support it in the future, due to the vast number of differences (the demo
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version of Strife is based on an earlier version of Rogue’s
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codebase).
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The commercial Strife IWAD version 1.1 may run, but also exhibit issues. Like
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the demo version, there are no current plans to fully support it. Make sure
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your copy is updated to at least 1.2. Strife: Veteran Edition already
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includes the required version.
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## How do I use it?
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From the Run box or a command line, issue a command to Chocolate Strife just
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like you would run Chocolate Doom. Most of the same command line parameters
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are supported.
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voices.wad will be read from the same directory as the IWAD, if it can be
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found. If it is not found, then voices will be disabled just as would happen
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with the vanilla executable. Do not add voices.wad using -file, as that is
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redundant and unnecessary.
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Some new command-line parameters in Chocolate Strife include the following:
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- -nograph
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- Disables the graphical introduction sequence. -devparm implies this.
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- -novoice
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- Disables voices even if voices.wad can be found.
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- -work
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- Enables Rogue’s playtesting mode. Automatic godmode, and pressing the
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inventory drop key will toggle noclipping.
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- -flip
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- Flips player gun graphics. This is buggy, however, because it does not
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reverse the graphics’ x offsets (this is an accurate emulation of the
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vanilla engine’s behavior).
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- -random
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- Randomizes the timing and location of item respawns in deathmatch, when
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item respawning is enabled.
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## Copyright
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful,but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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See the “COPYING” file for the full license text. The source code for this
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program is available from the same location where you downloaded this package.
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Aside from Chocolate Doom, portions of the code are derived from the Eternity
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Engine, Copyright 2011 Team Eternity, as published under the GNU GPL.
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