public static bool CheckSkill( Mobile from, Skill skill, object amObj, double chance )
{
if ( from.Skills.Cap == 0 )
return false;

bool success = ( chance >= Utility.RandomDouble() );
double gc = (double)(from.Skills.Cap - from.Skills.Total) / from.Skills.Cap;
gc += ( skill.Cap - skill.Base ) / skill.Cap;
gc /= 2; / burası

gc += ( 1.0 - chance ) * ( success ? 0.5 : 0.2 );
gc /= 2; / burası

gc *= skill.Info.GainFactor;

if ( gc < 0.01 )
gc = 0.01;

if ( from is BaseCreature && ((BaseCreature)from).Controled )
gc *= 2;

if ( from.Alive && ( ( gc >= Utility.RandomDouble() && AllowGain( from, skill, amObj ) ) || skill.Base < 10.0 ) )
Gain( from, skill );

return success;
}