/// <summary>
/// Make the highlighted tile "breath" (blink) by changing their alpha value.
/// </summary>
protected virtual void TileBreath()
{
if (_alpha < float.Epsilon)
{
// current alpha value is near 0, so set it to 0 and now go towards 1
_alpha = 0f;
_alphaRampDirection = AlphaRampDirection.AlphaRampUp;
}
if (_alpha >= 1f)
{
// alpha as goes up to 1, now set to 1 and go down
_alpha = 1f;
_alphaRampDirection = AlphaRampDirection.AlphaRampDown;
}
// depending on the direction (towards 0 or towards 1), either add or subtract from the alpha value
if (_alphaRampDirection == AlphaRampDirection.AlphaRampDown)
{
_alpha -= _blinkTick;
}
else
{
_alpha += _blinkTick;
}
}
protected virtual void TileBreath(Material material)
{
if (_alpha < float.Epsilon)
{
_alpha = 0f;
_alphaRampDirection = AlphaRampDirection.AlphaRampUp;
}
if (_alpha >= 1f)
{
_alpha = 1f;
_alphaRampDirection = AlphaRampDirection.AlphaRampDown;
}
var matColor = material.color;
matColor.a = _alpha;
material.color = matColor;
if (_alphaRampDirection == AlphaRampDirection.AlphaRampDown)
{
_alpha -= TickAlphaQuantum;
}
else
{
_alpha += TickAlphaQuantum;
}
}
