private void SetFreeLook()
{
if (!Viewport.IsUnlocked(this))
{
return;
}
FreeLook = false;
if (FreeLookToggle)
{
FreeLook = true;
}
else
{
var left = Control.MouseButtons.HasFlag(MouseButtons.Left);
var right = Control.MouseButtons.HasFlag(MouseButtons.Right);
if (ToolManager.ActiveTool is CameraTool)
{
FreeLook = left || right;
}
else
{
var space = KeyboardState.IsKeyDown(Keys.Space);
var req = Chisel.Settings.View.Camera3DPanRequiresMouseClick;
FreeLook = space && (!req || left || right);
}
}
if (FreeLook && CursorVisible)
{
CursorClip = Cursor.Clip;
Cursor.Clip = Viewport.RectangleToScreen(new Rectangle(0, 0, Viewport.Width, Viewport.Height));
Viewport.Capture = true;
CursorVisible = false;
Cursor.Hide();
Viewport.AquireInputLock(this);
}
else if (!FreeLook && !CursorVisible)
{
Cursor.Clip = CursorClip;
CursorClip = Rectangle.Empty;
Viewport.Capture = false;
CursorVisible = true;
Cursor.Show();
Viewport.ReleaseInputLock(this);
}
}
private void IfKey(Keys key, Action action, bool ignoreKeyboard)
{
if (!KeyboardState.IsKeyDown(key))
{
_downKeys.Remove(key);
}
else if (ignoreKeyboard)
{
if (_downKeys.Contains(key))
{
action();
}
}
else
{
if (!_downKeys.Contains(key))
{
_downKeys.Add(key);
}
action();
}
}
public void UpdateFrame(FrameInfo frame)
{
var currMillis = _lastMillis;
_lastMillis = frame.Milliseconds;
if (currMillis == 0)
{
return;
}
if (!Focus || !Viewport.IsUnlocked(this) || !Viewport.IsFocused)
{
if (FreeLook || FreeLookToggle)
{
FreeLook = FreeLookToggle = false;
SetFreeLook();
}
return;
}
var seconds = (frame.Milliseconds - currMillis) / 1000m;
var units = Chisel.Settings.View.ForwardSpeed * seconds;
var down = KeyboardState.IsAnyKeyDown(Keys.W, Keys.A, Keys.S, Keys.D);
if (!down)
{
_downMillis = 0;
}
else if (_downMillis == 0)
{
_downMillis = currMillis;
}
if (Chisel.Settings.View.TimeToTopSpeed > 0)
{
var downFor = (frame.Milliseconds - _downMillis) / Chisel.Settings.View.TimeToTopSpeed;
if (downFor >= 0 && downFor < 1)
{
units *= _easing.Evaluate(downFor);
}
}
var move = units;
var tilt = 2m;
// These keys are used for hotkeys, don't want the 3D view to move about when trying to use hotkeys.
var ignore = KeyboardState.IsAnyKeyDown(Keys.ShiftKey, Keys.ControlKey, Keys.Alt);
IfKey(Keys.W, () => Camera.Advance(move), ignore);
IfKey(Keys.S, () => Camera.Advance(-move), ignore);
IfKey(Keys.A, () => Camera.Strafe(-move), ignore);
IfKey(Keys.D, () => Camera.Strafe(move), ignore);
IfKey(Keys.Q, () => Camera.AscendAbsolute(move), ignore);
IfKey(Keys.E, () => Camera.AscendAbsolute(-move), ignore);
// Arrow keys are not really used for hotkeys all that much, so we allow shift+arrows to match Hammer's keys
var shiftDown = KeyboardState.IsKeyDown(Keys.ShiftKey);
var otherDown = KeyboardState.IsAnyKeyDown(Keys.ControlKey, Keys.Alt);
IfKey(Keys.Right, () => { if (shiftDown)
{
Camera.Strafe(move);
}
else
{
Camera.Pan(-tilt);
} }, otherDown);
IfKey(Keys.Left, () => { if (shiftDown)
{
Camera.Strafe(-move);
}
else
{
Camera.Pan(tilt);
} }, otherDown);
IfKey(Keys.Up, () => { if (shiftDown)
{
Camera.Ascend(move);
}
else
{
Camera.Tilt(-tilt);
} }, otherDown);
IfKey(Keys.Down, () => { if (shiftDown)
{
Camera.Ascend(-move);
}
else
{
Camera.Tilt(tilt);
} }, otherDown);
}