cooldown

fun MMOCorePlayer.cooldown(skill: CooldownObject): Double
fun MMOCorePlayer.cooldown(handler: SkillHandler<*>): Double
fun MMOItemsPlayer.cooldown(skill: CooldownObject): Double
fun MMOItemsPlayer.cooldown(handler: SkillHandler<*>): Double
fun MMOPlayerData.cooldown(skill: CooldownObject): Double
fun MMOPlayerData.cooldown(handler: SkillHandler<*>): Double