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supertuxkart  0.5+dfsg1
shadow.cpp
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00001 //  $Id: shadow.cpp 2111 2008-05-31 07:04:30Z cosmosninja $
00002 //
00003 //  SuperTuxKart - a fun racing game with go-kart
00004 //  Copyright (C) 2004-2005 Steve Baker <sjbaker1@airmail.net>
00005 //  Copyright (C) 2006 SuperTuxKart-Team, Steve Baker
00006 //
00007 //  This program is free software; you can redistribute it and/or
00008 //  modify it under the terms of the GNU General Public License
00009 //  as published by the Free Software Foundation; either version 2
00010 //  of the License, or (at your option) any later version.
00011 //
00012 //  This program is distributed in the hope that it will be useful,
00013 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
00014 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015 //  GNU General Public License for more details.
00016 //
00017 //  You should have received a copy of the GNU General Public License
00018 //  along with this program; if not, write to the Free Software
00019 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00020 
00021 #include "material_manager.hpp"
00022 #include "material.hpp"
00023 #include "shadow.hpp"
00024 
00025 ssgTransform* createShadow( const std::string& name,
00026                             float x1, float x2, float y1, float y2 )
00027 {
00028     ssgVertexArray   *va = new ssgVertexArray   () ; sgVec3 v ;
00029     ssgNormalArray   *na = new ssgNormalArray   () ; sgVec3 n ;
00030     ssgColourArray   *ca = new ssgColourArray   () ; sgVec4 c ;
00031     ssgTexCoordArray *ta = new ssgTexCoordArray () ; sgVec2 t ;
00032 
00033     sgSetVec4 ( c, 0.0f, 0.0f, 0.0f, 1.0f ) ; ca->add(c) ;
00034     sgSetVec3 ( n, 0.0f, 0.0f, 1.0f ) ; na->add(n) ;
00035 
00036     sgSetVec3 ( v, x1, y1, 0.05f ) ; va->add(v) ;
00037     sgSetVec3 ( v, x2, y1, 0.05f ) ; va->add(v) ;
00038     sgSetVec3 ( v, x1, y2, 0.05f ) ; va->add(v) ;
00039     sgSetVec3 ( v, x2, y2, 0.05f ) ; va->add(v) ;
00040 
00041     sgSetVec2 ( t, 0.0f, 0.0f ) ; ta->add(t) ;
00042     sgSetVec2 ( t, 1.0f, 0.0f ) ; ta->add(t) ;
00043     sgSetVec2 ( t, 0.0f, 1.0f ) ; ta->add(t) ;
00044     sgSetVec2 ( t, 1.0f, 1.0f ) ; ta->add(t) ;
00045 
00046     ssgTransform* result = new ssgTransform ;
00047     result -> clrTraversalMaskBits ( SSGTRAV_ISECT|SSGTRAV_HOT ) ;
00048 
00049     result -> setName ( "Shadow" ) ;
00050 
00051     ssgVtxTable *gs = new ssgVtxTable ( GL_TRIANGLE_STRIP, va, na, ta, ca ) ;
00052 
00053     gs -> clrTraversalMaskBits ( SSGTRAV_ISECT|SSGTRAV_HOT ) ;
00054     gs -> setState ( material_manager->getMaterial ( name.c_str() ) -> getState () ) ;
00055 
00056     result -> addKid ( gs ) ;
00057 
00058     return result;
00059 }
00060 
00061 /* EOF */