[SOLVED] can't initialize filesystem

[dmitriy.ogorodnikov]

Hello!

 

I'm learning hot to use C++ project.

 

There are a lot of tutorials, so I took one

C:\Unigine Sim evaluation\source\samples\Api\Systems\World

 

I'll plan to copy this project do disk D in the future. So I desided to do it step by step.

First of all I created a copy of World.bat file (C:\Unigine Sim evaluation\source\samples\Api\Systems\World\World1.bat).

Then I decided to replace local path by global.

 

Original file World.bat:

World -data_path ../../../../../ ^
    -engine_config ../../data/unigine.cfg ^
    -system_script ../../data/unigine.cpp ^
    -console_command "world_load data/world" ^
    -video_mode 2

I replaced -data_path to global path:

World -data_path "C:/Unigine Sim evaluation" ^

and it didn't work

During launching I catch error "Engine::init(): can't initialize filesystem".

 

Also I checked two cases:

World -data_path "C:/Unigine Sim evaluation/" ^

World -data_path C:/Unigine Sim evaluation ^

The second line of bat-file contains path to cfg-file, that also contains data_path parameter

-engine_config ../../data/unigine.cfg

I replaced local path to global in cfg-file, but I didn't also help.

[silent]

Hello, Dmitry!

 

Unfortunately, data_path can be only relative to the binaries location. However, you can add one or more external locations (outside of data directory) via -extern_directory command or using the .ulink file.

 

Thanks!

[dmitriy.ogorodnikov]

Thank you for helping!

 

My goal was to know how to create Custom C++ project.

And today I thought that I went wrong way before and asked wrong questions.

 

Standard Docs wasn't too clear for me, so

 

Today I've done next steps:

1. Copy project do drive D.

2. Run bat-file and get errors.

3. Corect errors and run bat-file again until success.

4. Open vcxproj-file at MS Visual Studio, set required settings of solution using Docs, build exe-file and try to debug it (just for test).

5. Copy project to clean computer and run bat-file there.

 

1. I've copied project World from drive C to drive D

from C:\Unigine Sim evaluation\source\samples\Api\Systems\World to d:\World

 

2. Run d:\World\World.bat and get errors

Xml::load(): can't open "D:/World/ ../../data/unigine.cfg

 

3. I've open World.bat file

World -data_path ../../../../../ ^
-engine_config ../../data/unigine.cfg ^
-system_script ../../data/unigine.cpp ^
-console_command "world_load data/world" ^
-video_mode 2

Corected it to

World -data_path ./ ^
-engine_config data/unigine.cfg ^
-system_script data/unigine.cpp ^
-console_command "world_load data/world" ^
-video_mode 2

Copy files unigine.cfg and unigine.cpp from drive C to drive D

from C:\Unigine Sim evaluation\source\samples\Api\data to d:\World\data

 

Get next errors:

FontTTF::FontTTF(): can't open "core/gui/font.ttf" file

and another lines that direct to "core" directory

 

Then I copied core directory from drive C to drive D

C:\Unigine Sim evaluation\data\core\editor\ to d:\World\data\core\

 

Run again, unigine editor was loaded, but console had error

Mesh::info_mesh(): can't open "../../data/cbox.mesh" file

 

I searched string "../../data/cbox.mesh" in all files of project (d:\World)

I found that cbox.node contains several lines like this:

-   <node type="ObjectMesh" id="372338091" name="cbox_00">
  <mesh>../../data/cbox.mesh</mesh>
  <surface name="cbox" material="mesh_base" property="surface_base" />
  <transform>1 0 0 0 0 1 0 0 0 0 1 0 -0.5 -0.5 0 1</transform>
</node>

I change path to "data/cbox.mesh" and copy cbox.mesh to drive D

from C:\Unigine Sim evaluation\source\samples\Api\data\ to d:\World\data\

<node type="ObjectMesh" id="372338091" name="cbox_00">
    <mesh>data/cbox.mesh</mesh>
    <surface name="cbox" material="mesh_base" property="surface_base"/>
    <transform>1 0 0 0 0 1 0 0 0 0 1 0 -0.5 -0.5 0 1</transform>
</node>

At that time world was successfully loaded.

 

4. I ran World.vcxproj in Microsoft VS 2010, save solution and build. Got errors and used Docs.

 

Set include and lib directories at Debug-Double configuration:

C:\Unigine Sim evaluation\include

C:\Unigine Sim evaluation\lib

 

Successfully built solution (Worldd.exe)

Created World_d.bat (a copy of World.bat that runs Worldd.exe)

 

Ran World_d.bat - world was successfully loaded.

Copied content of bat-file to Properties -> Debugging -> Command arguments 

-data_path ./ -engine_config data/unigine.cfg -system_script data/unigine.cpp -console_command "world_load data/world" -video_mode 2

Ran in debug mode from Visual Studio, set a couple of breakpoints and check that they work.

 

5. Copy a project (d:\World\) to second clear computer.

Ran World_d.bat and got error: Unigine_x86d.dll wasn't found.

Like said in Docs, I copied this dll to second clear computer (d:\World\)

Ran World_d.bat again and everything was good - world was loaded.

 

If I saw something like this tutorial at Docs It would save me a time :)

 

Thank you.

You can close the question.

[silent]

Great! We surely will update C++ application tutorial and include more detailed description for each step.

Thank you for sharing!

[renato.semadeni]

Great post! Thanks!