/// <summary>
/// 设置材质的属性
/// <para>spriteEffect</para>
/// <para>propertyName 属性名称</para>
/// <para>value 属性颜色值(16进制) 分别对应argb</para>
/// </summary>
/// <param name="luaState"></param>
/// <returns></returns>
public static int SpriteEffectSetMatColor(ILuaState luaState)
{
STGSpriteEffect effect = luaState.ToUserData(-3) as STGSpriteEffect;
string propertyName = luaState.ToString(-2);
int value = luaState.ToInteger(-1);
int b = value & 0xff;
value >>= 8;
int g = value & 0xff;
value >>= 8;
int r = value & 0xff;
value >>= 8;
int a = value;
effect.SetMatColor(propertyName, new Color(r / 256f, g / 256f, b / 256f, a / 256f));
return(0);
}