// Some variables we need to remember across different funtions.
int _targetWidth, _targetHeight, _targetX, _targetY;

// Some constant values.
readonly int kFontSize = 9;
readonly int kLineLength = 30;
readonly int kPadding = 9;

// Tweens the display GUI so we don't have to copy and paste the code.
function _tweenDisplay(int transparency, int toX, int toY, int toWidth, int toHeight, TweenEasingType easing) {
  float delay = 0.0;
  if(transparency > 50) {
    delay = 0.4;
  }
  gDisplay.StopAllTweens();
  WaitForLongest(
    gDisplay.TweenTransparency(0.1, transparency, eEaseLinearTween, eNoBlockTween, delay),
    gDisplay.TweenPosition(0.5, toX, toY, easing, eNoBlockTween),
    gDisplay.TweenSize(0.5, toWidth, toHeight, easing, eNoBlockTween)
  );
}

// Uses the message length to resize the GUI and Label properly.
function _reflow(int length) {
  _targetWidth = 1;
  _targetHeight = (kFontSize - 1);
  if (length < kLineLength) {
    _targetWidth = length * kFontSize;
  }
  else {
    _targetWidth = kLineLength * kFontSize;
    while (length > kLineLength) {
      _targetHeight += (kFontSize - 2);
      length -= kLineLength;
    }
  }

  lblDisplay.X = kPadding;
  lblDisplay.Width = _targetWidth;
  lblDisplay.Height = _targetHeight;
  _targetWidth += (kPadding * 2);
  _targetHeight += (kPadding * 2);
  lblDisplay.Y = _targetHeight;
  _targetX = GetScreenWidth() / 2 - _targetWidth / 2;
  _targetY = GetScreenHeight() / 2 - _targetHeight / 2;
}

function noloopcheck Display2(String message) {
  // Init
  _reflow(message.Length);
  gDisplay.Width = 1;
  gDisplay.Height = 1;
  gDisplay.X = GetScreenWidth() / 2;
  gDisplay.Y = GetScreenHeight() - 1;
  gDisplay.Transparency = 100;
  lblDisplay.Text = message;
  gDisplay.Visible = true;
  lblDisplay.Visible = false;

  // Tween In
  bool wasButtonDown = Mouse.IsButtonDown(eMouseLeft);
  lblDisplay.StopAllTweens();
  Tween.IncreaseGameSpeed();
  _tweenDisplay(0, _targetX, _targetY, _targetWidth, _targetHeight, eEaseOutBackTween);
  lblDisplay.Visible = true;
  lblDisplay.TweenY(0.3, kPadding, eEaseOutSineTween, eBlockTween);

  // Remember mouse mode, change it, and wait for input
  if (game.skip_display == eSkipTime) {
    WaitSeconds(IntToFloat(message.Length)/IntToFloat(Game.TextReadingSpeed));
  }
  else {
    CursorMode previousMode = mouse.Mode;
    mouse.Mode = eModeWait;
    mouse.ChangeModeGraphic(eModeWait, mouse.GetModeGraphic(eModePointer));
    while(!Mouse.IsButtonDown(eMouseLeft) || wasButtonDown) {
      if(!Mouse.IsButtonDown(eMouseLeft)) {
        wasButtonDown = false;
      }
      Wait(1);
    }
    mouse.UseDefaultGraphic();
    mouse.Mode = previousMode;
  }

  // Tween Out
  lblDisplay.TweenY(0.3, -lblDisplay.Height, eEaseInSineTween, eBlockTween);
  lblDisplay.Visible = false;
  _tweenDisplay(100, GetScreenWidth() / 2, -1, 1, 1, eEaseInBackTween);
  gDisplay.Visible = false;
  Tween.RestoreGameSpeed();
}