Abstracted character controller interface

Renamed old character controller to DynamicCharacterController
First start at KinematicCharacterController. Still has bugs.

Demos/CharacterDemo/DynamicCharacterController.h

@@ -0,0 +1,49 @@
+#ifndef CHARACTER_CONTROLLER_H
+#define CHARACTER_CONTROLLER_H
+
+#include "LinearMath/btVector3.h"
+
+#include "CharacterControllerInterface.h"
+
+class btCollisionShape;
+class btRigidBody;
+class btDynamicsWorld;
+
+class DynamicCharacterController : public CharacterControllerInterface
+{
+protected:
+	btScalar m_halfHeight;
+	btCollisionShape* m_shape;
+	btRigidBody* m_rigidBody;
+
+	btVector3 m_raySource[2];
+	btVector3 m_rayTarget[2];
+	btScalar m_rayLambda[2];
+	btVector3 m_rayNormal[2];
+
+	btScalar m_turnAngle;
+
+	btScalar m_maxLinearVelocity;
+	btScalar m_walkVelocity;
+	btScalar m_turnVelocity;
+public:
+	DynamicCharacterController ();
+	~DynamicCharacterController ();
+	void setup (btDynamicsWorld* dynamicsWorld, btScalar height = 2.0, btScalar width = 0.25, btScalar stepHeight = 0.25);
+	void destroy (btDynamicsWorld* dynamicsWorld);
+
+	btRigidBody* getRigidBody ();
+
+	void preStep (btDynamicsWorld* dynamicsWorld);
+	void playerStep (btScalar dt,
+					 int forward,
+					 int backward,
+					 int left,
+					 int right);
+	bool canJump () const;
+	void jump ();
+
+	bool onGround () const;
+};
+
+#endif