protected override void Update(GameTime time)
{
if (_first)
{
// WPF window is not yet loaded when initialize is called, thus SetCursor does not work there, instead call it in the first update
_mouse.SetCursor(GraphicsDevice.Viewport.Width / 2, GraphicsDevice.Viewport.Height / 2);
_first = false;
}
// every update we can now query the keyboard & mouse for our WpfGame
var mouseState = _mouse.GetState();
if (mouseState.X == 0 && mouseState.Y == 0)
{
// WPF returns empty mouseposition at startup, until window is at least once rendered. only then will it return proper mouse positions
// so we deferr updating until we get a valid mousestate
return;
}
var keyboardState = _keyboard.GetState();
if (!IsActive())
{
return;
}
if (keyboardState.IsKeyDown(Keys.Escape))
{
Environment.Exit(0);
}
_terrainScene.Update(time, mouseState, keyboardState, (x, y) => _mouse.SetCursor(x, y));
}
public void Update(GameTime gameTime)
{
if (Mouse == null)
{
return;
}
var mouseState = Mouse.GetState();
var keyboardState = Keyboard.GetState();
if (!Game.IsActive)
{
PrevMouseState = mouseState;
return;
}
if (keyboardState.IsKeyDown(Keys.W))
{
Position += Dir * Speed;
}
if (keyboardState.IsKeyDown(Keys.S))
{
Position -= Dir * Speed;
}
if (keyboardState.IsKeyDown(Keys.A))
{
Position += Vector3.Cross(Up, Dir) * Speed;
}
if (keyboardState.IsKeyDown(Keys.D))
{
Position -= Vector3.Cross(Up, Dir) * Speed;
}
if (keyboardState.IsKeyDown(Keys.Space))
{
Position += Up * Speed;
}
// camera speed control
if (mouseState.ScrollWheelValue != PrevScrollWheelValue)
{
var diff = mouseState.ScrollWheelValue - PrevScrollWheelValue;
if (diff >= 0)
{
Speed *= SpeedMod;
}
else
{
Speed /= SpeedMod;
}
PrevScrollWheelValue = mouseState.ScrollWheelValue;
}
if (mouseState.RightButton == ButtonState.Pressed)
{
if (PrevMouseState.RightButton == ButtonState.Pressed)
{
// yaw / x-rotation
Dir = Vector3.Transform(Dir, Matrix.CreateFromAxisAngle(Up,
-MathHelper.PiOver4 / 160 * (mouseState.X - centerX)));
// pitch / y-rotation
Dir = Vector3.Transform(Dir, Matrix.CreateFromAxisAngle(Vector3.Cross(Up, Dir),
MathHelper.PiOver4 / 160 * (mouseState.Y - centerY)));
}
else
{
System.Windows.Input.Mouse.OverrideCursor = Cursors.None;
}
// there is a delay here, so Mouse.GetState() won't be immediately affected
Mouse.SetCursor(centerX, centerY);
}
else if (PrevMouseState.RightButton == ButtonState.Pressed)
{
System.Windows.Input.Mouse.OverrideCursor = Cursors.Arrow;
}
PrevMouseState = mouseState;
Dir.Normalize();
CreateLookAt();
//Console.WriteLine("Camera pos: " + GameView.Instance.Render.Camera.Position);
//Console.WriteLine("Camera dir: " + GameView.Instance.Render.Camera.Dir);
}