/* Puts the inverse of a modified aspect matrix of this
* critter into the modelveiw matrix of the pgraphics of the _pownerview.
* The "modification" has to do with the fact that we think of a critterviewer as looking
* along its plus x-axis, but for the view matrix we think of looking along
* its negatiave z axis. */
public virtual void loadProjectionMatrix()
{ /* Set the perspective matrix of the pgraphics
* of the _pownerview so that something like _proportionofworldtoshow much of
* world shows (0.1 would be a tenth of the world, 1.0 would be all of it,
* 2.0 would mean show space around the world so it takes up half the
* view). Also use _znear and _zfar so that all of the visible world can
* fit in between these bounds. We regularly compute _znear and _zfar in
* the setZClipPlanes method, called by our cCritterViewer.update call. */
pgraphics().MatrixModeProperty = cGraphics.PROJECTION;
pgraphics().loadIdentity();
if (!_perspective)
//We don't have perspective implemented for cGraphicsMFC yet.
{ //use Ortho view. ortho call takes (left, right, bottom, top, nearzclip, farzclip).
cRealBox2 orthoviewrect = OrthoViewRect;
/* The call to ortho() becomes a _realpixelconverter.setRealWindow call
* in cGraphicsMFC, replacing our old call to
* _pgraphics->setRealBox(border()); */
pgraphics().ortho(orthoviewrect.Lox, orthoviewrect.Hix,
orthoviewrect.Loy, orthoviewrect.Hiy, _znear, _zfar);
}
else // _perspective is TRUE. perspective call takes (fieldofview, xtoyratio, nearzclip, farzclip).
{
pgraphics().perspective(FieldOfViewDegrees, _aspect, _znear, _zfar);
}
pgraphics().MatrixModeProperty = cGraphics.MODELVIEW;
}
public cSpriteIconBackground( int resourceID, cRealBox2 borderrect, int xtilecount = 1 )
{
_xtilecount = xtilecount;
if ( _xtilecount > 1 )
_tiled = true;
_transparent = false;
_presetaspect = true;
_resourceID = resourceID;
_radius = borderrect.Radius;
_sizex = borderrect.XSize;
_sizey = borderrect.YSize;
_aspect = ( float ) _sizex /( float ) _sizey;
_visualradius = 0.25f *( _sizex + _sizey ); //Avg of distances to sides.
}
