add initial examples, replacing the 'Demos/Demos3'. Will make it work cross-platform, OpenGL3/OpenGL2 and add more examples to it.

examples/BasicDemo/BasicExample.cpp

@@ -0,0 +1,115 @@
+
+
+#include "BasicExample.h"
+
+#include "btBulletDynamicsCommon.h"
+#define ARRAY_SIZE_Y 5
+#define ARRAY_SIZE_X 5
+#define ARRAY_SIZE_Z 5
+
+#include "LinearMath/btVector3.h"
+#include "LinearMath/btAlignedObjectArray.h"
+
+#include "../CommonInterfaces/CommonRigidBodyBase.h"
+
+
+struct BasicExample : public CommonRigidBodyBase
+{
+	BasicExample(struct GUIHelperInterface* helper)
+		:CommonRigidBodyBase(helper)
+	{
+	}
+	virtual ~BasicExample(){}
+	virtual void initPhysics();
+};
+
+void BasicExample::initPhysics()
+{
+	m_guiHelper->setUpAxis(1);
+
+	createEmptyDynamicsWorld();
+	
+	m_guiHelper->createPhysicsDebugDrawer(m_dynamicsWorld);
+
+	if (m_dynamicsWorld->getDebugDrawer())
+		m_dynamicsWorld->getDebugDrawer()->setDebugMode(btIDebugDraw::DBG_DrawWireframe+btIDebugDraw::DBG_DrawContactPoints);
+
+	///create a few basic rigid bodies
+	btBoxShape* groundShape = createBoxShape(btVector3(btScalar(50.),btScalar(50.),btScalar(50.)));
+	m_guiHelper->createCollisionShapeGraphicsObject(groundShape);
+
+	//groundShape->initializePolyhedralFeatures();
+//	btCollisionShape* groundShape = new btStaticPlaneShape(btVector3(0,1,0),50);
+	
+	m_collisionShapes.push_back(groundShape);
+
+	btTransform groundTransform;
+	groundTransform.setIdentity();
+	groundTransform.setOrigin(btVector3(0,-50,0));
+
+	{
+		btScalar mass(0.);
+		btRigidBody* body = createRigidBody(mass,groundTransform,groundShape, btVector4(0,0,1,1));
+		m_guiHelper->createRigidBodyGraphicsObject(body, btVector3(0, 1, 0));
+	}
+
+
+	{
+		//create a few dynamic rigidbodies
+		// Re-using the same collision is better for memory usage and performance
+
+		btBoxShape* colShape = createBoxShape(btVector3(1,1,1));
+		m_guiHelper->createCollisionShapeGraphicsObject(colShape);
+
+		//btCollisionShape* colShape = new btSphereShape(btScalar(1.));
+		m_collisionShapes.push_back(colShape);
+
+		/// Create Dynamic Objects
+		btTransform startTransform;
+		startTransform.setIdentity();
+
+		btScalar	mass(1.f);
+
+		//rigidbody is dynamic if and only if mass is non zero, otherwise static
+		bool isDynamic = (mass != 0.f);
+
+		btVector3 localInertia(0,0,0);
+		if (isDynamic)
+			colShape->calculateLocalInertia(mass,localInertia);
+
+
+		for (int k=0;k<ARRAY_SIZE_Y;k++)
+		{
+			for (int i=0;i<ARRAY_SIZE_X;i++)
+			{
+				for(int j = 0;j<ARRAY_SIZE_Z;j++)
+				{
+					startTransform.setOrigin(btVector3(
+										btScalar(2.0*i),
+										btScalar(20+2.0*k),
+										btScalar(2.0*j)));
+
+			
+					btRigidBody* body = createRigidBody(mass,startTransform,colShape);
+					m_guiHelper->createRigidBodyGraphicsObject(body, btVector3(1, 1, 0));
+
+				}
+			}
+		}
+	}
+
+
+}
+
+
+
+ExampleInterface*    BasicExampleCreateFunc(PhysicsInterface* pint, GUIHelperInterface* helper, int option)
+{
+	return new BasicExample(helper);
+}
+
+
+
+
+
+

examples/BasicDemo/BasicExample.h

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+#ifndef BASIC_EXAMPLE_H
+#define BASIC_EXAMPLE_H
+
+class ExampleInterface*    BasicExampleCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
+
+
+#endif //BASIC_DEMO_PHYSICS_SETUP_H

examples/BasicDemo/main.cpp

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+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2015 Google Inc. http://bulletphysics.org
+
+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 "BasicExample.h"
+
+#include "../CommonInterfaces/ExampleInterface.h"
+#include "../CommonInterfaces/CommonGUIHelperInterface.h"
+
+
+
+
+int main(int argc, char* argv[])
+{
+	struct PhysicsInterface* pint = 0;
+	
+	DummyGUIHelper noGfx;
+
+	int option = 0;
+
+	ExampleInterface*    example = BasicExampleCreateFunc(pint, &noGfx, option);
+	
+	example->initPhysics();
+	example->stepSimulation(1.f/60.f);
+	example->exitPhysics();
+
+	delete example;
+
+	return 0;
+}
+

examples/BasicDemo/premake4.lua

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+
+project "App_BasicExample"
+
+if _OPTIONS["ios"] then
+	kind "WindowedApp"
+else	
+	kind "ConsoleApp"
+end
+
+includedirs {"../../src"}
+
+links {
+	"BulletDynamics","BulletCollision", "LinearMath"
+}
+
+language "C++"
+
+files {
+	"**.cpp",
+	"**.h",
+}
+