Implement this in Scala:

In a tournament of arms two knights fight each other to the death: //> kl mt2.Knight -mt2$$anonfunSmain$1$Knight$1le643faf //> k2 : mt2.Knight mt2$$anonfunSmain$1$Knight$1@6e8dacdf val klnew Knight ("Drobot") val k2-new Knight("Bldimore") kl.strategy-Mace k2.strategy-new CompositeStrategy (List (Mace, Stab, Stab)) k1.attack (k2) 9 0 9 3 //> Drobot is attacking Baldimore //1 macing // Baldimore.health-90 //> Baldimore is attacking Drobot //I macing // stabbing // stabbing // Drobot.health-60 2 k2.attack (k1) The design of the tournament combines the Strategy and Composite design patterns Knight trait name: String health: Int 100 sategy ckStrategy 1 attack(opponent Knight) strategies attack(opponent: Knight) Singleton Stab Knight) attack(opponent: Knight attack(opponent: Knight) In a tournament of arms two knights fight each other to the death: //> kl mt2.Knight -mt2$$anonfunSmain$1$Knight$1le643faf //> k2 : mt2.Knight mt2$$anonfunSmain$1$Knight$1@6e8dacdf val klnew Knight ("Drobot") val k2-new Knight("Bldimore") kl.strategy-Mace k2.strategy-new CompositeStrategy (List (Mace, Stab, Stab)) k1.attack (k2) 9 0 9 3 //> Drobot is attacking Baldimore //1 macing // Baldimore.health-90 //> Baldimore is attacking Drobot //I macing // stabbing // stabbing // Drobot.health-60 2 k2.attack (k1) The design of the tournament combines the Strategy and Composite design patterns Knight trait name: String health: Int 100 sategy ckStrategy 1 attack(opponent Knight) strategies attack(opponent: Knight) Singleton Stab Knight) attack(opponent: Knight attack(opponent: Knight)