/// <summary>
/// Sets the color range of this particle type.
/// </summary>
/// <param name="start">The starting color.</param>
/// <param name="finish">The finish color.</param>
/// <param name="ease">Optional easer function.</param>
/// <returns>This ParticleType object.</returns>
public ParticleType SetColor(Color start, Color finish, Emitter.Easer ease = null)
{
uint s = FP.HexColor(start);
uint f = FP.HexColor(finish);
s &= 0xFFFFFF;
f &= 0xFFFFFF;
_red = (s >> 16 & 0xFF) / 255.0f;
_green = (s >> 8 & 0xFF) / 255.0f;
_blue = (s & 0xFF) / 255.0f;
_redRange = (f >> 16 & 0xFF) / 255.0f - _red;
_greenRange = (f >> 8 & 0xFF) / 255.0f - _green;
_blueRange = (f & 0xFF) / 255.0f - _blue;
_colorEase = ease;
return(this);
}
/// <summary>
/// Tweens the color to a new color.
/// </summary>
/// <param name="duration">Duration of the tween.</param>
/// <param name="fromColor"></param>
/// <param name="toColor">Start color.</param>
/// <param name="ease">Optional easer function.</param>
public void tween(float duration, Color fromColor, Color toColor, Easer ease = null)
{
Color = fromColor;
uint from = FP.HexColor(fromColor);
uint to = FP.HexColor(toColor);
_startR = FP.GetRed(from);
_startG = FP.GetGreen(from);
_startB = FP.GetBlue(from);
_rangeR = FP.GetRed(to) - _startR;
_rangeG = FP.GetGreen(to) - _startG;
_rangeB = FP.GetBlue(to) - _startB;
_target = duration;
_ease = ease;
Start();
}