OpenRaider

OpenRaider

OpenRaider is an Open Source implementation of the classic Tomb Raider Game Engine. It was abandoned in 2003.

This project aims to get OpenRaider in a more usable state, maybe one day even being able to play the old Tomb Raider games flawlessly…

Currently, my focus is on building and running under Mac OS X. However, my changes should not break the Linux “buildability” :)

If you just want to see OpenRaider doing something on your Mac, without installing any of the dependencies needed to build OpenRaider, install XQuartz (if you don’t have it already) and grab the Mac App Bundle from the most recent release. If you don’t install XQuartz, Mac OS X should prompt you to do so on the first launch of OpenRaider.

It seems as if OpenRaider will currently only work on Little-Endian platforms. This is not nice and will hopefully be fixed in the future!

Configuration

OpenRaider needs some configuration files, and level data and assets from custom levels or the Tomb Raider games. These are stored in ~/.OpenRaider. Running the included setup.sh will create/copy the necessary files and directories. The Mac App Bundle will do this for you automatically.

You still need to add level files in ~/.OpenRaider/paks/ and add them to ~/.OpenRaider/OpenRaider.init. Dust off your old Tomb Raider CDs or grab some custom levels from the interwebs.

Documentation

All previously included documentation was moved into the OpenRaider Repo Wiki. Also take a look at the BUGS, TODO and Requirements.

A more or less recent Doxygen documentation of OpenRaider should be on the Github Pages for OpenRaider.

Dependencies

Basically, OpenRaider depends on the following:

• OpenGL
• SDL2 & SDL2-TTF
• OpenAL & ALUT
• Posix Threads
• zlib

On Mac OS X 10.9 with XCode and MacPorts installed, the following should be enough to get all dependencies that are available as port:

sudo port install zlib libsdl2 libsdl2_ttf cmake

A similar command for the package manager of your favorite Linux Distribution should do the trick.

cmake is also needed to build freealut, which you’ll need to enable sound output on Mac OS X. Get, compile and install freealut like this:

git clone git@github.com:vancegroup/freealut.git
mkdir build
cd build
cmake .. -DCMAKE_INSTALL_PREFIX:STRING="/usr/local" -DCMAKE_C_FLAGS:STRING="-O2"
make
sudo make install

Linux Distributions will probably provide an ALUT library ready to install with their package manager, so you won’t need to compile freealut.

Building

If you installed the dependencies using MacPorts, you’ll need to have /opt/local/bin in your $PATH before you can execute make. If you’re using Bash, the MacPorts installer should have automatically edited your configuration.

Just do a cmake out-of-tree build and specify if you want the Debug or Release configuration, then run the resulting executable:

mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Debug ..
make
./OpenRaider

Usage

Configuration file

OpenRaider will try to load ~/.OpenRaider/OpenRaider.init or, if it doesn’t exist, OpenRaider.init from the current directory. Running setup.sh will create a minimal configuration in your home directory.

The configuration file format is very simple:

• Anything following a # up to the next \n will be ignored.
• Lines starting with an @ mark a “preprocessor” command. The only one currently implemented is @include, allowing you to include another file as configuration file.
• Lines surrounded with [], eg. [Engine.OpenGL.Driver] set the mode for following commands.
• Everything else is interpreted as command for the current mode.

Level PAKs

You can use paks from any Tomb Raider version supported and most user made paks for Tomb Raider. Only PHD, TR1, TR2, TR3, and TR4 paks are supported as of this writing.

Sound FXs

Setting up external sound SFX, for TR2 and TR3 paks only.

TR2 and TR3 paks (both have file extension .tr2) don’t have sound data contained in the pak itself, but instead they share a common SFX file (often MAIN.SFX) for each pak from a given Tomb Raider version.

Previously, OpenRaider tried to load an SFX file with the same name as the level file, with .sfx added to the end. You had to create a symlink for each level to the SFX file if you were using original Tomb Raider levels, like this:

cd ~/.OpenRaider/paks/tr3/
cp /mnt/cdrom/data/MAIN.SFX .
for i in *.tr2; do ln -s MAIN.SFX $i.sfx; done

Now, OpenRaider just tries to load a MAIN.SFX in the same folder as the level file. If you want to change this behaviour, this happens around line 1075 of src/OpenRaider.cpp.

Key Bindings

Key	Action
<Alt><Enter>	Toggle fullscreen
<Esc>	Interactive Level load menu
`	Console toggle on/off
Mouse	Turn
MouseBtn Left	Shoot
w	Move forward
s	Move back
e	Move down
q	Move up
r	Play sound quick test
/	Drop a waypoint test (formally undocumented)
[ ]	Adjust idle animation for testing

Console/Config Commands

Console commands (BOOL is now ‘0’ or ‘1’ for less typing). Pressing <UP> will go back to last command entered (saves typing).

Network

Command	Action
server	Start network listen server
killserver	Stop network listen server
port INT	Set network port number
connect HOSTNAME	Connect to network server at HOSTNAME
disconnect	Disconnect from network server

Game

Command	Action
quit	Quit the game
sshot	Take screenshot
play INT	Play sound fx with number
loadlevel STRING	Load level with mapname STRING
sensitivity.x FLOAT	Set mouse sensitivity for X movement
sensitivity.y FLOAT	Set mouse sensitivity for Y movement
fullscreen	Toggles fullscreen mode
walk	Toggle world clipping on
ghost	Toggle world clipping off
fly	Toggle world clipping off without gravity
noclip	Toggle world clipping in cycle
hop	Toggle room hopping hack
showfps BOOL	Show FPS
resize STRING	Change resolution to xga, svga or vga

Render

Command	Action
wireframe	Render in wireframe (for debugging)
solid	Render solid color polygons
texture	Render with textures
vertexlight	Render with vertexlights
titlescreen	Render titlescreen
r_animate BOOL	Animate all models at once
r_upf BOOL	Update room render list once per frame
r_ponytail BOOL	Render ponytail on Lara
r_pigtails BOOL	Render ponytails as pigtails on Lara
r_ponyangle INT	Set rotation of ponytail on Lara
r_ponyx INT	Set X offset of ponytail on Lara
r_ponyy INT	Set Y offset of ponytail on Lara
r_ponyz INT	Set Z offset of ponytail on Lara
r_viewmodel INT	Load skeletal model with index INT
r_fog BOOL	Render fog toggle
r_portal BOOL	Render portals in rooms
r_particle BOOL	Render particles
r_vmodel BOOL	Render view model
r_sprite BOOL	Render sprites (room fx and items)
r_roommodel BOOL	Render room models
r_entmodel BOOL	Render entity models
r_light BOOL	Render with GL lights
r_ralpha BOOL	Render alpha pass for rooms
r_vis BOOL	Render using visibility checking
r_oneroom	Render only the current room
r_allrooms	Render all rooms in the level (debug/stress)

Set Commands

Command	Action
mousegrab BOOL	Set mouse grabbing on/off

Stat Commands

Command	Action
fps	Toggle showing FPS
pos	Show current location
room
flags	Show room flags in hex

Wireframe mode colors

• Red (thick) lines are portal outlines
• Red (thin) lines are triangle room polygons
• Black lines are quadralateral room polygons
• White meshes are entities
• Blue meshes are sprites
• Yellow meshes are room models
• Green lines with red endpoints are room bboxes
• Pink dots are visibility checks

License

The included example Font, Droid Sans Mono, was created by Steve Matteson and is licensed under the Apache 2.0 License.

The included sample WAV file is made from the Falling Mate ringtone by Plaetzchen.

The included Unit Test Framework greatest by Scott Vokes is licensed under the ISC License.

The included cmake scripts FindALUT, FindSDL2 and FindSDL2TTF are released under the Boost Software License (for FindALUT) and under the BSD License for the other two. Authors: Ryan Pavlik, Iowa State University, Eric Wing and Kitware Inc.

OpenRaider is based on code, specs, and alogrithms from:

• GooseEgg/Freyja 3d Modelers by Mongoose
• TR Rosetta Stone spec sheet by Anonymous
• TRView 1.0.0 by Yuri Zhivago, with patches by Mongoose

All code should be GPLed, unless otherwise noted.

2013, 2014 improvements & clean-up by xythobuz.