[xmoto-dev] Request of testing my branch

[Janek Polak <benetnash@xxxxxxxxxxxxxx>]

Hi!

I've commited some chenges into my branch -
svn.tuxfamily.org/svnroot/xmoto/xmoto/branches/benetnash
This version isn't fully functional - there is no layers support and
clipping code is wrong. Implementing that require some coding and I'll wait
first for some feedback. 

In my branch draving algorithm is completly changed. I've created one
superclass for each drawn object - LevelObject. This class stores depth
and bounding box of some object and have several virtual methond
including main, void render(GameRenderer* r) which draws object on
screen.  Second thing is RendererObjects file where are stored methods
called by mentioned render() method, for example RenderLevelEntity or
RenderLevelBlock. Next thing is m_LevelObjects vector in GameRenderer
class where all level objects are stored and sorted by their z value.
During each frame whole vector is scanned and only visible objects are
drawn (it's determined by calling virtual isVisible() method from
LevelObject class). With this clipping and rendering logic is hidden and
in render() method is on smart loop

for (std::vector<LevelObject*>::iterator iter =
		m_LevelObjects.begin();
		 iter != m_LevelObjects.end();
		 iter++) {
	if ((*iter)->isVisible(m_screenBBox))
	(*iter)->render(this);
}

which render all visible objects.

Imo this method is better then old split to methods that were rendering
background, foreground, dynamic blocks and so on. 

My other ideas (I could implement them if you like):
 - add to .lvl files z-value of block and add to svg2lvl option to store
   order of block from inkscape in .lvl file using this value.
 - add colors (or even transparency) to textures using glColor call -
   it will effect in better looking levels  
 - fpt throttling - now game is optimized for 100fps which is very much
   on slower computer. With drawing only half or 1/3 of frames
   performance of game on such computer schould increase.
 - dynamic camera - when player is falling down more area below him
   schould be visible and so on  

On my computer effect of my changes isn't visible as higher farmerate
but as lower CPU usage - version from trunk uses 50% to 70% of CPU and
version from my branch uses 35% to 55%. I'd like to hear some feedback
from you about performance of this on your machines.  
Best Regards
benetnash

-- 
Janek Polak
WWW: http://www.icpnet.pl/~benetnash  GnuPG: 6A1E7B75
GG: 2852217  Jabber: benetnash@xxxxxxxxxxxxx
ICQ: 473154175  Skype: benetnash86

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