public static float GetChannel(this Color self, RGBAChannels channel)
{
return(self[(int)channel]);
}
/// <summary>
/// Copy <paramref name="self" /> and set <paramref name="channel" /> to <paramref name="value" />,
/// then return the copied color.
/// </summary>
/// <param name="self">Color to copy.</param>
/// <param name="channel">Channel to set.</param>
/// <param name="value">Channel value to set.</param>
/// <returns>
/// Color value with given <paramref name="channel" /> set to <paramref name="value" />
/// </returns>
/// <remarks>
/// This method is not named "SetChannel" since Color is a value type, <paramref name="self" /> is
/// passed by value, and setting its field by extension method is actually setting the field of
/// the copied Color value of <paramref name="self" />. In order to get this method work, it requires
/// the caller use its return value assign to which meant to be changed.
/// </remarks>
public static Color Channelled(this Color self, RGBAChannels channel, float value)
{
self[(int)channel] = value;
return(self);
}
