OpenRacing WIP: Difference between revisions

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== Achieving UTI ==
== Achieving UTI ==


C# code design was depending a lot on C++ code due to compatibility constraint with Torcs plugins.
[[Achieving UTI]]
 
However, with time, we finally ended up rewriting almost everything but the car simulation engine (which is the big part of the '''simuv2''' plugin)
 
We then removed lot of C++ code, mainly track and robots related code, then their dependencies.
 
The C# code can now be redesigned properly (without constraints), starting with the track interface (see Universal Track Interface).
 
=== Step 1: kill some C++ ===
 
* 1- We got rid of all C++ code not needed by simuv2.
** 1. we disabled legacy c++ robots, which in turn allowed to remove learning, robottools, plib (almost completely).
** 2. C# code that needed to access/modify t* struct now do it through an interface (called UTI).
** 3. We removed as much C++ code as possible.
 
* 2- Simplifying simuv2
** simuv2 no longer manages collisions, we got rid of solid.
 
==== Progress indicator ====
 
The indicator is the number of lines of C++ compiled in libsimulator.so. Goal is 0 (one day maybe).
 
* 22/06, 05:00pm. '''39223''' lines
* 23/06, 03:00pm. '''32984''' lines ('''removed c++ drivers''')
* 23/06, 03:30pm. '''31697''' lines (removed learning)
* 23/06, 05:00pm. '''31565''' lines (tried to remove robottools... but track have a dependency over it. simplifying what can be)
* 24/06, 05:00pm. '''30817''' lines (removed gnulinux)
* 24/06, 06:00pm. '''30116''' lines (removed simuv2 collision handling code, '''removed simuv2's dependency over the track format''')
* 26/06, 11:00am. '''24528''' lines ('''removed track''', finished to remove robottools)
* 26/06, 12:30pm. '''21975''' lines (removed most of plib. cleaning some commented lines)
* 26/06, 07:30pm. '''18289''' lines (removed solid and portability)
* 26/06, 10:00pm. '''17949''' lines (removed lot of raceman, cleaning)
 
==== Going further ====
 
Almost half the remaining C++ code is related to parsing XML and storing/managing ''GfParm'' (which is a list of Metadata -- or Dictionnary -- done in C++).
 
A quick ''grep'' approximates that SimuV2 retrieves about '''103 static informations''' about the car from its GfParm files.
If we create a structure in which we store those informations, we can then load them from C# (using far-far less code).
 
When all those 103 informations are loaded from C#, we can drop the txml and tgf c++ modules. Only simuv2 and math will remain (and I guess we then can't go any further except by porting simuv2 to C#).
 
=== Torcs' data structures and C# ===
 
OpenRacing is still relying on a few data structures which are defined in C++, they are used to keep synchronized simulation state between C++ and C#.
 
However, the C++ code is now absolutely free of informations about the track. So, concerning UTI's work, we have nothing to change on that part.
 
=== Alpha UTI ===
 
On the process to remove track from C++, I needed to add a minimal UTI interface in order to be able to run the simulation.
 
AlphaUTI is an extremely minimalist implementation of it. It gives a single starting position (0,0,2) and point its path to the street-1 folder so Ode and Ogre load their data from there.
 
We now need to transfer some ''intelligence'' from Ode/Ogre to UTI (so an UTI is not just a folder!).
 
=== Step 2: Conception ===
 
==== Plan ====
 
# Solve the problems
## What informations needs each modules?
### Ode?
### Ogre?
### Robots?
## How blender can define those?
## How UTI should present this to OpenRacing's modules, in an ''abstract'' way?
# Provide class specifications.
## For physics
## For graphics
## For robots
# Implement AlphaUTI and/or tools (depends where the methods goes)
## .OTF (pseudo collada) loader
## convert .OTF to OGRE
# Adapt
## Ode to use UTI
## Ogre to use UTI
## Robots to use UTI
# Enjoy the new track made with blender!
 
==== Basic design ====
 
[[Image:UTI-Integration.png]]
 
==== Ode needs ====
 
Ode needs:
* a list of meshes
** with physical properties
** with normals
 
==== Ogre needs ====
 
==== Robots needs ====
 
==== Blender exports ====
 
==== UTI's interface ====
 
==== AlphaUTI ====
 
=== Questions ===
 
'''Q1: Should the robot decide the features of his car?'''
 
It seems more natural to me to build a car then put a driver into the car (instead of the opposite). Maybe some AI are very specific to drive a particular car, let's forget about that first: we simplify!


== Tasks ==
== Tasks ==
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* Automatic track 3D model conversion from Torcs-NG's data (starting from trackgen). Should warn about unsupported geometry and such.
* Automatic track 3D model conversion from Torcs-NG's data (starting from trackgen). Should warn about unsupported geometry and such.
===  Driver ===
===  Driver ===
* Load sharpy's driver, make it run a car : ''Keith will do''
* Load sharpy's driver, make it run a car
 
===  User interface ===
===  User interface ===
* Make a GUI designed for our needs (load a track, evaluate drivers, run simulation in background, ...) : ''WIP''
* Make a GUI designed for our needs (load a track, evaluate drivers, run simulation in background, ...) : ''WIP''
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<gallery caption="OpenRacing gallery" widths="200px" heights="150px">
<gallery caption="OpenRacing gallery" widths="200px" heights="150px">
Image:WIP-TorcsOgre-12.jpg|2008-sep-08, high-quality skybox, back to stencil shadows
Image:WIP-TorcsOgre-12.jpg|2008-sep-08, high-quality skybox, back to stencil shadows
Image:WIP-TorcsOgre-13.jpg|2008-feb-12, minimalist main menu
Image:WIP-TorcsOgre-13.jpg|2009-feb-12, minimalist main menu
Image:WIP-TorcsOgre-14.jpg|2008-feb-25, chasing camera
Image:WIP-TorcsOgre-14.jpg|2009-feb-25, chasing camera
Image:WIP-TorcsOgre-15.jpg|2008-mar-14, speedometer, tachometer, detect and remove alpha-blended objects
Image:WIP-TorcsOgre-15.jpg|2009-mar-14, speedometer, tachometer, detect and remove alpha-blended objects
Image:WIP-TorcsOgre-16.jpg|2008-mar-18, free-ride</gallery>
Image:WIP-TorcsOgre-16.jpg|2009-mar-18, free-ride</gallery>
 


== Old tasks ==
== Old tasks ==

Latest revision as of 20:13, 5 March 2011

Tasks & Plans

Achieving UTI

Achieving UTI

Tasks

Ogre renderer

  • Automatic car 3D model conversion. (can be called "automatic AC3D to Ogre conversion").
  • Automatic track 3D model conversion from Torcs-NG's data (starting from trackgen). Should warn about unsupported geometry and such.

Driver

  • Load sharpy's driver, make it run a car

User interface

  • Make a GUI designed for our needs (load a track, evaluate drivers, run simulation in background, ...) : WIP
  • Work on the installation process

Screenshots

Bellow, you'll find some screenshots showing work in progress of Ogre renderer and GUIs.

  • OpenRacing gallery
  • 2008-sep-08, high-quality skybox, back to stencil shadows

    2008-sep-08, high-quality skybox, back to stencil shadows

  • 2009-feb-12, minimalist main menu

    2009-feb-12, minimalist main menu

  • 2009-feb-25, chasing camera

    2009-feb-25, chasing camera

  • 2009-mar-14, speedometer, tachometer, detect and remove alpha-blended objects

    2009-mar-14, speedometer, tachometer, detect and remove alpha-blended objects

  • 2009-mar-18, free-ride

    2009-mar-18, free-ride

Old tasks

Ogre renderer

  • Make a camera follows a car (from behind) : DONE.

Core engine

  • Load a complete track using C++ plugin : DONE.
  • Initialize OgreDotNet graphic plugins to display the track : DONE.
  • Load cars / physics engine : DONE.
  • Load a C++ driver / create C# interface : DONE.

Driver

  • Implement user controlled vehicle : DONE.

User interface

  • Port to MyGUI's C# interface : DONE.

Merging Imre's work

Order:

  • Identify hardcoded stuffs : WIP
    • openracing.in -> LD_LIBRARY_PATH=/home/mulder/projects/openracing/cleaned/src/libsimulator/.libs
    • src/ode/OdeLoader.cs -> mCtx.RegisterResourcePath("/home/mulder/projects/trunk/track/Barcelona/");
    • my_config doesn't have to be in the repository
    • src/core/RaceManager.cs -> InitStartingGrid
    • src/graphic/OScene.cs -> mCtx.RegisterResourcePath("/home/mulder/projects/openracing/cleaned/data/tracks/road/icy");
    • src/ode/OdeMesh.cs -> XmlTextReader reader = new XmlTextReader("/home/mulder/projects/openracing/cleaned/data/tracks/road/icy/Mesh.mesh.xml");
  • Full merge
  • Clean
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