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Topic: BOX2DLIB library (beta) released (Read 1820 times) |
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ScriptBasic
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Re: BOX2DLIB library (beta) released
« Reply #3 on: Jan 17th, 2014, 01:19am » |
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Great stuff Richard.
I have downloaded the libs and examples and look forward working with it.
Update
I can get the Box2D chain example to run from the IDE but it can't find the BOX2DLIB.DLL if run from the compiled form. I even tried putting the DLL in the same directory as the program.
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| « Last Edit: Jan 17th, 2014, 02:06am by ScriptBasic » |
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admin
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Re: BOX2DLIB library (beta) released
« Reply #4 on: Jan 17th, 2014, 08:41am » |
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on Jan 17th, 2014, 01:19am, ScriptBasic wrote:| it can't find the BOX2DLIB.DLL if run from the compiled form. I even tried putting the DLL in the same directory as the program. |
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To successfully embed the DLL in the compiled EXE it must be in one of two places: either in the BB4W library directory (@lib$) or in the same directory as the program (@dir$) - or in a sub-directory of one of those places.
So long as that is the case the only remaining requirement is to ensure that the DLL is correctly embedded when the program is compiled. The best way is probably to incorporate a REM!Embed compiler directive in the program, but if you don't want to bother with that you can simply add the DLL manually in the Compile dialog (Add @dir$ or Add @lib$ buttons).
http://www.bbcbasic.co.uk/bbcwin/manual/bbcwin1.html#directives
http://www.bbcbasic.co.uk/bbcwin/manual/bbcwin1.html#embedded
Richard.
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| « Last Edit: Jan 17th, 2014, 09:03am by admin » |
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ScriptBasic
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Re: BOX2DLIB library (beta) released
« Reply #5 on: Jan 17th, 2014, 4:07pm » |
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The compile dialog showed the two library resources being included. All the library related files where put in the LIB directory of BBC4W. When the compiled app didn't work, I copied the DLL to the same directory as the .exe. I then copied it to the sysWOW64 directory with no luck. Works fine running from the IDE.
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admin
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Re: BOX2DLIB library (beta) released
« Reply #6 on: Jan 17th, 2014, 4:23pm » |
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on Jan 17th, 2014, 4:07pm, ScriptBasic wrote:| The compile dialog showed the two library resources being included. |
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There should be three embedded resources in total for CHAIN.BBC to work. If your Compile dialog shows only two that will be why it isn't working!
Here's a version I compiled: chain.exe
And for those who missed it the first time round, here's Svein's 'Pintograph' drawing machine with my added Meccano (TM) graphics: pintograph.exe
Richard.
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ScriptBasic
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Re: BOX2DLIB library (beta) released
« Reply #7 on: Jan 17th, 2014, 5:41pm » |
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Your chain.exe works fine. I added the BOX2DGFX.BBC to the lib include listbox (making 3 resources) but I'm still getting the same error.
I checked the temp directory created and there was no BOX2D221.DLL present. I copied from the LIB but it still doesn't work.
Can I assume that compiling BBC4W applications really means packing up the interpretive files into a bundle and executed with the runtime when uncompressed by the packaging code?
Update
I added the BOX2D221.DLL to the project and it now works from the exe created directory. Just to undo the confusion, these are library files needed to make chain.exe work standalone.
BOX2D221.DLL
BOX2DDBG.BBC
BOX2DLIB.BBC
FYI - When running the chain.exe it uses 50% of of both of my CPU cores. I would guess if I had a single core processor, I would be running at 100% CPU utilization.
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| « Last Edit: Jan 17th, 2014, 7:29pm by ScriptBasic » |
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admin
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Re: BOX2DLIB library (beta) released
« Reply #8 on: Jan 17th, 2014, 7:59pm » |
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on Jan 17th, 2014, 5:41pm, ScriptBasic wrote:| Can I assume that compiling BBC4W applications really means packing up the interpretive files into a bundle and executed with the runtime when uncompressed by the packaging code? |
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Indeed so.
Quote:| I added the BOX2D221.DLL to the project and it now works from the exe created directory. |
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As I mentioned, the safest method is to add a compiler directive in the source program:
Code:REM!Embed @lib$+"BOX2DLIB.BBC", @lib$+"BOX2DDBG.BBC", @lib$+"BOX2D221.DLL"
Quote:| I would guess if I had a single core processor, I would be running at 100% CPU utilization. |
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It shouldn't - there's a WAIT 1 (10 millisecond sleep) in the main loop. On my Windows 8.1 laptop (1.9 GHz Intel Core i7) it uses about 8% CPU. Does Wine support hardware-accelerated graphics?
Richard.
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| « Last Edit: Jan 17th, 2014, 8:18pm by admin » |
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ScriptBasic
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Re: BOX2DLIB library (beta) released
« Reply #9 on: Jan 17th, 2014, 9:55pm » |
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Quote:| Does Wine support hardware-accelerated graphics? |
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Supposedly for OpenGL/SDL. Not sure what Box2D is using.
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| « Last Edit: Jan 17th, 2014, 9:55pm by ScriptBasic » |
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Re: BOX2DLIB library (beta) released
« Reply #10 on: Jan 17th, 2014, 10:02pm » |
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on Jan 17th, 2014, 9:55pm, ScriptBasic wrote:| Supposedly for OpenGL/SDL. Not sure what Box2D is using. |
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GDI+ for the Debug Draw interface (which is what chain.bbc is using).
The idea is to use Debug Draw during development, because it makes everything 'visible', but when all the physics is working as it should you switch that off and then render the final graphics however you prefer.
The crates and pintograph examples happen to use a mixture of custom assembler and GDI (in the BOX2DGFX library), but could just as well use SDL or OpenGL, in principle.
Richard.
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