useCapcity returns Unit

src/main/scala/pokemon/Pokemon.scala

@@ -25,7 +25,7 @@ trait Pokemon(
     def speed: Int = 5 + scala.math.floor(2.0 * this.baseSpeed * this.level / 100.0).toInt
     def maxLife: Int = scala.math.floor(2.0 * this.baseSpeed * this.level / 100.0).toInt + 10 + this.level
 
-    def useCapacity(capacity: Capacity, other: Pokemon): Boolean =
+    def useCapacity(capacity: Capacity, other: Pokemon): Unit =
 
         assert(capacity.isUsable, "This capacity is not usable.")
 
@@ -41,10 +41,9 @@ trait Pokemon(
 
         other.decreaseLife(Math.round(damage.toFloat))
 
-    def decreaseLife(x: Int): Boolean =
+    def decreaseLife(x: Int): Unit =
         if this.life - x <= 0 then this._life = 0
         else this._life = this.life - x
-        this.isAlive
 
     def isAlive: Boolean = this.life != 0