Class Hierarchy

BGL.Buffer: The Buffer object is simply a block of memory that is delineated and initialized by the user.
Mathutils.Euler: This object gives access to Eulers in Blender.
GameTypes.KX_PolygonMaterial: This is the interface to materials in the game engine.
Mathutils.Matrix: This object gives access to Matrices in Blender.
GameTypes.PyObjectPlus: PyObjectPlus base class of most other types in the Game Engine.
- GameTypes.BL_Shader: BL_Shader GLSL shaders.
- GameTypes.CValue: This class is a basis for other classes.
  - GameTypes.CPropValue: This class has no python functions
    - GameTypes.CListValue: CListValue
  - GameTypes.SCA_ILogicBrick: Base class for all logic bricks.
    - GameTypes.SCA_IActuator: Base class for all actuator logic bricks.
      - GameTypes.BL_ActionActuator: Action Actuators apply an action to an actor.
      - GameTypes.BL_ShapeActionActuator: ShapeAction Actuators apply an shape action to an mesh object.
      - GameTypes.KX_CDActuator: CD Controller actuator.
      - GameTypes.KX_CameraActuator: Applies changes to a camera.
      - GameTypes.KX_ConstraintActuator: A constraint actuator limits the position, rotation, distance or orientation of an object.
      - GameTypes.KX_GameActuator: The game actuator loads a new .blend file, restarts the current .blend file or quits the game.
      - GameTypes.KX_IpoActuator: IPO actuator activates an animation.
      - GameTypes.KX_NetworkMessageActuator: Message Actuator
      - GameTypes.KX_ObjectActuator: The object actuator ("Motion Actuator") applies force, torque, displacement, angular displacement, velocity, or angular velocity to an object.
      - GameTypes.KX_ParentActuator: The parent actuator can set or remove an objects parent object.
      - GameTypes.KX_SCA_AddObjectActuator: Edit Object Actuator (in Add Object Mode)
      - GameTypes.KX_SCA_DynamicActuator: Dynamic Actuator.
      - GameTypes.KX_SCA_EndObjectActuator: Edit Object Actuator (in End Object mode)
      - GameTypes.KX_SCA_ReplaceMeshActuator: Edit Object actuator, in Replace Mesh mode.
      - GameTypes.KX_SceneActuator: Scene Actuator logic brick.
      - GameTypes.KX_SoundActuator: Sound Actuator.
      - GameTypes.KX_StateActuator: State actuator changes the state mask of parent object.
      - GameTypes.KX_TrackToActuator: Edit Object actuator in Track To mode.
      - GameTypes.KX_VisibilityActuator: Visibility Actuator.
      - GameTypes.SCA_2DFilterActuator: Create, enable and disable 2D filters
      - GameTypes.SCA_PropertyActuator: Property Actuator
      - GameTypes.SCA_RandomActuator: Random Actuator
    - GameTypes.SCA_IController: Base class for all controller logic bricks.
      - GameTypes.SCA_ANDController: An AND controller activates only when all linked sensors are activated.
      - GameTypes.SCA_NANDController: An NAND controller activates when all linked sensors are not active.
      - GameTypes.SCA_NORController: An NOR controller activates only when all linked sensors are de-activated.
      - GameTypes.SCA_ORController: An OR controller activates when any connected sensor activates.
      - GameTypes.SCA_PythonController: A Python controller uses a Python script to activate it's actuators, based on it's sensors.
      - GameTypes.SCA_XNORController: An XNOR controller activates when all linked sensors are the same (activated or inative).
      - GameTypes.SCA_XORController: An XOR controller activates when there is the input is mixed, but not when all are on or off.
    - GameTypes.SCA_ISensor: Base class for all sensor logic bricks.
      - GameTypes.KX_NetworkMessageSensor: The Message Sensor logic brick.
      - GameTypes.KX_RaySensor: A ray sensor detects the first object in a given direction.
      - GameTypes.KX_TouchSensor: Touch sensor detects collisions between objects.
        
        GameTypes.KX_NearSensor: A near sensor is a specialised form of touch sensor.
        
        GameTypes.KX_RadarSensor: Radar sensor is a near sensor with a conical sensor object.
      - GameTypes.SCA_ActuatorSensor: Actuator sensor detect change in actuator state of the parent object.
      - GameTypes.SCA_AlwaysSensor: This sensor is always activated.
      - GameTypes.SCA_DelaySensor: The Delay sensor generates positive and negative triggers at precise time, expressed in number of frames.
      - GameTypes.SCA_JoystickSensor: This sensor detects player joystick events.
      - GameTypes.SCA_KeyboardSensor: A keyboard sensor detects player key presses.
      - GameTypes.SCA_MouseSensor: Mouse Sensor logic brick.
        
        GameTypes.KX_MouseFocusSensor: The mouse focus sensor detects when the mouse is over the current game object.
      - GameTypes.SCA_PropertySensor: Activates when the game object property matches.
      - GameTypes.SCA_RandomSensor: This sensor activates randomly.
  - GameTypes.SCA_IObject: This class has no python functions
    - GameTypes.KX_GameObject: All game objects are derived from this class.
      - GameTypes.KX_Camera: A Camera object.
      - GameTypes.KX_LightObject: A Light object.
    - GameTypes.KX_MeshProxy: A mesh object.
    - GameTypes.KX_PolyProxy: A polygon holds the index of the vertex forming the poylgon.
    - GameTypes.KX_VertexProxy: A vertex holds position, UV, colour and normal information.
- GameTypes.KX_BlenderMaterial: KX_BlenderMaterial
- GameTypes.KX_ConstraintWrapper: KX_ConstraintWrapper
- GameTypes.KX_PhysicsObjectWrapper: KX_PhysicsObjectWrapper
- GameTypes.KX_Scene: An active scene that gives access to objects, cameras, lights and scene attributes.
- GameTypes.KX_VehicleWrapper: KX_VehicleWrapper
Mathutils.Quaternion: This object gives access to Quaternions in Blender.
Mathutils.Vector: This object gives access to Vectors in Blender.