Axiom.Samples.SdkCameraManager.frameRenderingQueued C# (CSharp) Method

		public virtual bool frameRenderingQueued( FrameEventArgs evt )
		{
			if ( mStyle == CameraStyle.FreeLook )
			{
				// build our acceleration vector based on keyboard input composite
				Vector3 accel = Vector3.Zero;
				if ( mGoingForward )
					accel += mCamera.Direction;
				if ( mGoingBack )
					accel -= mCamera.Direction;
				if ( mGoingRight )
					accel += mCamera.Right;
				if ( mGoingLeft )
					accel -= mCamera.Right;
				if ( mGoingUp )
					accel += mCamera.Up;
				if ( mGoingDown )
					accel -= mCamera.Up;

				// if accelerating, try to reach top speed in a certain time
				if ( accel.LengthSquared != 0 )
				{
					accel.Normalize();
					mVelocity += accel * TopSpeed * evt.TimeSinceLastFrame * 10;
				}
				// if not accelerating, try to stop in a certain time
				else
					mVelocity -= mVelocity * evt.TimeSinceLastFrame * 10;

				// keep camera velocity below top speed and above zero
				if ( mVelocity.LengthSquared > TopSpeed * TopSpeed )
				{
					mVelocity.Normalize();
					mVelocity *= TopSpeed;
				}
				else if ( mVelocity.LengthSquared < 0.1 )
					mVelocity = Vector3.Zero;

				if ( mVelocity != Vector3.Zero )
					mCamera.Move( mVelocity * evt.TimeSinceLastFrame );
			}

			return true;
		}