text: import pyrr
  from math import radians
  
  class Camera:
      __slots__ = "_ProjectionMatrix", "_ViewMatrix", "_ViewProjectionMatrix", \
          "_Position", "_Rotation", \
          "_AspectRatio"
  
      def __init__(self, view: pyrr.Matrix44, projection: pyrr.Matrix44) -> None:
          self._ViewMatrix = view
          self._ProjectionMatrix = projection
          self._ViewProjectionMatrix = self._ViewMatrix @ self._ProjectionMatrix
  
          self._Position = pyrr.Vector3( [ 0, 0, 0 ] )
          self._Rotation = pyrr.Vector3( [ 0, 0, 0 ] )
  
          self._RecalculateViewMatrix()
  
      def _RecalculateViewMatrix(self) -> None:
          transform : pyrr.Matrix44 = pyrr.matrix44.create_from_translation(self._Position)
  
          rotX = pyrr.matrix44.create_from_x_rotation( radians(self._Rotation.x) )
          rotY = pyrr.matrix44.create_from_y_rotation( radians(self._Rotation.y) )
          rotZ = pyrr.matrix44.create_from_z_rotation( radians(self._Rotation.z) )
  
          rotation = rotX @ rotY @ rotZ
  
          model = rotation @ transform
          self._ViewMatrix = pyrr.matrix44.inverse(model)
          self._ViewProjectionMatrix = self._ViewMatrix @ self._ProjectionMatrix
  
      @property
      def Position(self) -> pyrr.Vector3:
          return self._Position
  
      def SetPosition(self, pos: pyrr.Vector3) -> None:
          self._Position = pos
          self._RecalculateViewMatrix()
  
      def Translate(self, delta: pyrr.Vector3) -> None:
          self._Position = self._Position + delta
          self._RecalculateViewMatrix()
  
      @property
      def Rotation(self) -> pyrr.Vector3:
          return self._Rotation
  
      def SetRotation(self, rotation: pyrr.Vector3) -> None:
          self._Rotation = rotation
          self._RecalculateViewMatrix()
  
      @property
      def ProjectionMatrix(self) -> pyrr.Matrix44:
          return self._ProjectionMatrix
  
      @property
      def ViewMatrix(self) -> pyrr.Matrix44:
          return self._ViewMatrix
  
      @property
      def ViewProjectionMatrix(self) -> pyrr.Matrix44:
          return self._ViewProjectionMatrix
  
      @property
      def AspectRatio(self) -> float:
          return self._AspectRatio
  
      def SetAspectRatio(self, newRatio: float) -> None:
          self._AspectRatio = newRatio
          self._RecalculateViewMatrix()
  
      def GetSpeed(self) -> float:
          pass
      