jsbzflag - scripting bzfs with Javascript.

[mmarshall]

I wanted to do something different over the weekend, and Google's new javascript engine was just begging to be played with.

Get it here: http://bitbucket.org/mmarshall/jsbzflag/

What does it look like? Here's a simple "airspawn" plugin in its entirety:

Code: Select all

events.getPlayerSpawnPos.add(function () {
    this.pos[2] += Math.random()*10;
});

It's not complete, but what's there works pretty well. Some documentation and a few samples are included.

Anyway, my weekend is over. Have fun with it!

MWM

[Anthony]

Will this work ?

[blast]

Will this work ?

Will what work?

[mmarshall]

Will this work ?

If "this" refers to the plugin, it already works. It has been working since day 1 (last Saturday.)

It's just doesn't have the full functionality of the C++ api exposed yet.

MWM

[javawizard2539]

Has anyone compiled this on Windows? It gives me a ton of errors when I run scons (compiling v8 worked fine).

Code: Select all

C:\bzflagdev\javascriptplugin\repository>scons
scons: Reading SConscript files ...
C:\Program Files\Python26\Scripts\..\Lib\site-packages\scons-1.1.0\SCons\Platfor
m\posix.py:38: DeprecationWarning: The popen2 module is deprecated.  Use the sub
process module.
  import popen2
C:\Program Files\Python26\Scripts\..\Lib\site-packages\scons-1.1.0\SCons\Tool\ms
vs.py:37: DeprecationWarning: the md5 module is deprecated; use hashlib instead
  import md5
scons: done reading SConscript files.
scons: Building targets ...
cl /Fobz_functions.obj /c bz_functions.cpp /nologo - g /TP /nologo - g /I.
cl : Command line warning D9002 : ignoring unknown option '-'
cl : Command line warning D9002 : ignoring unknown option '-'
bz_functions.cpp
C:\Program Files\Microsoft Visual Studio 9.0\VC\include\xlocale(342) : warning C
4530: C++ exception handler used, but unwind semantics are not enabled. Specify
/EHsc
g
c1xx : fatal error C1083: Cannot open source file: 'g': No such file or director
y
g
c1xx : fatal error C1083: Cannot open source file: 'g': No such file or director
y
Generating Code...
scons: *** [bz_functions.obj] Error 2
scons: building terminated because of errors.

C:\bzflagdev\javascriptplugin\repository>

[mmarshall]

Hmm, you might try commenting out line 11 of the SConstruct file. (I'm not even sure why that's there, come to think of it.)

MWM

[javawizard2539]

Now I'm getting different errors, that look like they are syntax errors within the files. I changed the cpppath and libpath to point to where I have bzfsAPI.h, v8.h, and v8.lib, but it didn't help. I also changed jsbzflag.so to jsbzflag.dll.

Here's a portion (roughly one-third) of the errors that are occuring, which look to me like they're occuring because the header files can't be found. I don't know a ton about Scons, but I haven't been able to solve the problem from the research I've done on it.

Code: Select all

C:\bzflagdev\javascriptplugin\repository>scons
scons: Reading SConscript files ...
C:\Program Files\Python26\Scripts\..\Lib\site-packages\scons-1.1.0\SCons\Platfor
m\posix.py:38: DeprecationWarning: The popen2 module is deprecated.  Use the sub
process module.
  import popen2
C:\Program Files\Python26\Scripts\..\Lib\site-packages\scons-1.1.0\SCons\Tool\ms
vs.py:37: DeprecationWarning: the md5 module is deprecated; use hashlib instead
  import md5
scons: done reading SConscript files.
scons: Building targets ...
cl /Fojsbzflag.obj /c jsbzflag.cpp /nologo /TP /nologo /I.
jsbzflag.cpp
C:\Program Files\Microsoft Visual Studio 9.0\VC\include\xlocale(342) : warning C
4530: C++ exception handler used, but unwind semantics are not enabled. Specify
/EHsc
jsbzflag.cpp(230) : error C2065: 'bz_GetPlayerSpawnPosEventData' : undeclared id
entifier
jsbzflag.cpp(230) : error C2065: 'event' : undeclared identifier
jsbzflag.cpp(230) : error C2065: 'bz_GetPlayerSpawnPosEventData' : undeclared id
entifier
jsbzflag.cpp(230) : error C2059: syntax error : ')'
jsbzflag.cpp(231) : error C2065: 'event' : undeclared identifier
jsbzflag.cpp(231) : error C2227: left of '->pos' must point to class/struct/unio
n/generic type
        type is ''unknown-type''
jsbzflag.cpp(232) : error C2065: 'event' : undeclared identifier
jsbzflag.cpp(232) : error C2227: left of '->handled' must point to class/struct/
union/generic type
        type is ''unknown-type''
jsbzflag.cpp(233) : error C2065: 'event' : undeclared identifier
jsbzflag.cpp(233) : error C2227: left of '->rot' must point to class/struct/unio
n/generic type
        type is ''unknown-type''
jsbzflag.cpp(234) : error C2065: 'event' : undeclared identifier
jsbzflag.cpp(234) : error C2227: left of '->time' must point to class/struct/uni
on/generic type
        type is ''unknown-type''
jsbzflag.cpp(235) : error C2065: 'event' : undeclared identifier
jsbzflag.cpp(235) : error C2227: left of '->playerID' must point to class/struct
/union/generic type
        type is ''unknown-type''
jsbzflag.cpp(240) : error C2065: 'event' : undeclared identifier
jsbzflag.cpp(240) : error C2227: left of '->pos' must point to class/struct/unio
n/generic type
        type is ''unknown-type''
jsbzflag.cpp(241) : error C2065: 'event' : undeclared identifier
jsbzflag.cpp(241) : error C2227: left of '->handled' must point to class/struct/
union/generic type
        type is ''unknown-type''
jsbzflag.cpp(242) : error C2065: 'event' : undeclared identifier
jsbzflag.cpp(242) : error C2227: left of '->rot' must point to class/struct/unio
n/generic type
        type is ''unknown-type''
jsbzflag.cpp(248) : error C2065: 'bz_UnknownSlashCommandEventData' : undeclared
identifier
jsbzflag.cpp(248) : error C2065: 'event' : undeclared identifier
jsbzflag.cpp(248) : error C2065: 'bz_UnknownSlashCommandEventData' : undeclared
identifier
jsbzflag.cpp(248) : error C2059: syntax error : ')'
jsbzflag.cpp(249) : error C2065: 'event' : undeclared identifier
jsbzflag.cpp(249) : error C2227: left of '->message' must point to class/struct/
union/generic type
        type is ''unknown-type''
jsbzflag.cpp(249) : error C2228: left of '.c_str' must have class/struct/union
jsbzflag.cpp(250) : error C2065: 'event' : undeclared identifier
jsbzflag.cpp(250) : error C2227: left of '->from' must point to class/struct/uni
on/generic type
        type is ''unknown-type''

[mmarshall]

It looks like bzfsAPI.h isn't being included, or perhaps is a different version. (I developed against 2.0.12.)

You can also try compiling with a VC project instead of scons. It's just jsbzflag.cpp, player.cpp and bz_functions.cpp linked with v8.

MWM

[javawizard2539]

That would be the problem. I'm building against BZFlag version 3.0, and if I remember correctly a lot has changed in the API. I'll try building for 2.0.