rename ObsoleteDemos back to Demos

fix some relative path issues for loading assets

Demos/OpenGL/GL_Simplex1to4.cpp

@@ -0,0 +1,80 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+#include "GL_Simplex1to4.h"
+#include "BulletCollision/NarrowPhaseCollision/btSimplexSolverInterface.h"
+#include "GL_ShapeDrawer.h"
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
+//think different
+#if defined(__APPLE__) && !defined (VMDMESA)
+#include <OpenGL/gl.h>
+#include <OpenGL/glu.h>
+#else
+#include <GL/gl.h>
+#endif
+#include "GlutStuff.h"
+#include "LinearMath/btTransform.h"
+
+GL_Simplex1to4::GL_Simplex1to4()
+:m_simplexSolver(0)
+{
+}
+
+GL_Simplex1to4::~GL_Simplex1to4()
+{
+}
+
+///
+/// Debugging method calcClosest calculates the closest point to the origin, using m_simplexSolver
+///
+void	GL_Simplex1to4::calcClosest(btScalar* m)
+{
+	btTransform tr;
+	tr.setFromOpenGLMatrix(m);
+	
+
+
+			GL_ShapeDrawer::drawCoordSystem();
+			
+			if (m_simplexSolver)
+			{
+				m_simplexSolver->reset();
+				bool res;
+
+				btVector3 v;
+
+				for (int i=0;i<m_numVertices;i++)
+				{
+					v =  tr(m_vertices[i]);
+					m_simplexSolver->addVertex(v,v,btVector3(0.f,0.f,0.f));
+					res = m_simplexSolver->closest(v);
+				}
+
+				//draw v?
+				glDisable(GL_LIGHTING);
+				glBegin(GL_LINES);
+				btglColor3(1.f, 0.f, 0.f);
+				btglVertex3(0.f, 0.f, 0.f);
+				btglVertex3(v.x(),v.y(),v.z());
+				glEnd();
+				
+				glEnable(GL_LIGHTING);
+
+
+			}
+
+}