public override void Process(GameTime gameTime, int entityId)
{
var lens = _lensMapper.Get(entityId);
var fly = _flyCameraMapper.Get(entityId);
if (ActiveLens == null)
{
ActiveLens = lens;
}
var angleX = 0f;
var angleY = 0f;
var moveSpeed = (float)((InputManager.Instance.IsInputDown(Input.CameraIncreasedSpeed) ? fly.Speed * 2 : fly.Speed) * gameTime.ElapsedGameTime.TotalSeconds);
var translation = new Vector3(0, 0, 0);
if (InputManager.Instance.IsInputDown(Input.CameraMoveForward))
{
translation += lens.Direction * moveSpeed;
}
if (InputManager.Instance.IsInputDown(Input.CameraMoveBackwards))
{
translation -= lens.Direction * moveSpeed;
}
if (InputManager.Instance.IsInputDown(Input.CameraMoveLeft))
{
translation += Vector3.Cross(Vector3.Up, lens.Direction) * moveSpeed;
}
if (InputManager.Instance.IsInputDown(Input.CameraMoveRight))
{
translation -= Vector3.Cross(Vector3.Up, lens.Direction) * moveSpeed;
}
if (InputManager.Instance.IsInputDown(Input.CameraMoveUp))
{
translation += new Vector3(0, moveSpeed, 0);
}
if (InputManager.Instance.IsInputDown(Input.CameraMoveDown))
{
translation -= new Vector3(0, moveSpeed, 0);
}
if (!lens.CustomAspectRatio)
{
lens.AspectRatio = LensComponent.CalculateAspectRatio(Game1.ScreenResolutionX, Game1.ScreenResolutionY);
}
lens.Position += translation;
if (InputManager.Instance.IsInputDown(Input.CameraFreeRotation))
{
var mousePositionDifference = InputManager.Instance.CameraLookVector;
angleX -= mousePositionDifference.X * moveSpeed * 3;
angleY += mousePositionDifference.Y * moveSpeed * 3;
}
else
{
if (InputManager.Instance.IsInputDown(Input.CameraLookLeft))
{
angleX -= moveSpeed * 6;
}
if (InputManager.Instance.IsInputDown(Input.CameraLookRight))
{
angleX += moveSpeed * 6;
}
if (InputManager.Instance.IsInputDown(Input.CameraLookUp))
{
angleY += moveSpeed * 6;
}
if (InputManager.Instance.IsInputDown(Input.CameraLookDown))
{
angleY -= moveSpeed * 6;
}
}
var cameraUpPerpendicular = Vector3.Cross(Vector3.Up, lens.Direction);
cameraUpPerpendicular.Normalize();
var tempDirection = Vector3.Transform(lens.Direction, Matrix.CreateFromAxisAngle(cameraUpPerpendicular, (-MathHelper.PiOver4 / 150) * angleY));
tempDirection = Vector3.Transform(tempDirection, Matrix.CreateFromAxisAngle(Vector3.Up, (-MathHelper.PiOver4 / 150) * angleX));
tempDirection.Normalize();
lens.Direction = tempDirection;
}
private static CollidableReference?GetCollidableAtMouse(Simulation simulation, LensComponent lens)
{
var lensDirection = new global::System.Numerics.Vector3(lens.Direction.X, lens.Direction.Y, lens.Direction.Z);
var lensPosition = new global::System.Numerics.Vector3(lens.Position.X, lens.Position.Y, lens.Position.Z);
var rayDirection = lensDirection;
var hitHandler = default(RayHitHandler);
hitHandler.T = float.MaxValue;
simulation.RayCast(lensPosition, rayDirection, float.MaxValue, ref hitHandler);
if (hitHandler.T < float.MaxValue)
{
return(hitHandler.HitCollidable);
}
return(null);
}
