enhance entity state modes

Java-Knight/src/main/java/org/project/constants/gameConstant/EntityState.java

@@ -2,6 +2,7 @@ package org.project.constants.gameConstant;
 
 public enum EntityState {
     ALIVE,
+    DOWNED,
     DEAD,
     FROZEN
 }

Java-Knight/src/main/java/org/project/entity/Entity.java

@@ -228,7 +228,7 @@ public abstract class Entity implements IDamageable, IHealable, IDefendable, IFi
 
     @Override
     public ArrayList<FightMoves> GetAvailableMoves() {
-        if (GetState() == EntityState.FROZEN) return new ArrayList<>(){};
+        if (GetState() == EntityState.FROZEN || GetState() == EntityState.DEAD) return new ArrayList<>(){};
 
         ArrayList<FightMoves> result = new ArrayList<>();
         result.add(FightMoves.DEFEND);