update Player and Knight class

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

@@ -1,6 +1,66 @@
 package org.project.entity.players;
 
-// TODO: UPDATE IMPLEMENTATION
-public class Knight {
-    // TODO: DESIGN KNIGHT'S WEAPON AND ARMOR AND IMPLEMENT THE CONSTRUCTOR
+
+import org.project.entity.Entity;
+import org.project.item.armors.Armor;
+import org.project.item.weapons.Weapon;
+
+public class Knight extends Player {
+
+    public Knight(String name, int hp, int mp, Weapon weapon, Armor armor) {
+        super(name, hp, mp, weapon, armor);
+        setDefendRate(.9);
+    }
+
+    @Override
+    public void lightAttack(Entity target) {
+        attack(target, 1);
+    }
+
+    @Override
+    public void heavyAttack(Entity target) {
+        if (getMp() >= 8) {
+            attack(target, 1.8);
+            setMp(getMp() - 8);
+        }
+        else {
+            System.out.println("Not enough MP");
+        }
+    }
+
+    @Override
+    public void defend() {
+        if (getMp() >= 4) {
+            super.defend();
+            setMp(getMp() - 4);
+        }
+        else {
+            System.out.println("Not enough MP");
+        }
+    }
+
+    @Override
+    public void specialAbility(Entity target) {
+        if (getMp() >= 20) {
+            attack(target, 2);
+            setMp(getMp() - 20);
+            //incomplete
+        }
+        else {
+            System.out.println("Not enough MP");
+        }
+    }
+
+    @Override
+    public void heal(int health) {
+        if (getMp() >= 5) {
+            super.heal(health);
+            setMp(getMp() - 5);
+        }
+        else  {
+            System.out.println("Not enough MP");
+        }
+    }
+
 }
+

Java-Knight/src/main/java/org/project/entity/players/Player.java

@@ -26,36 +26,30 @@ public abstract class Player implements Entity, combatOptions {
     }
 
     @Override
-    public void attack(Entity target,double multiplier) {
-        double finalDamage = multiplier * weapon.getDamage();
+    public void attack(Entity target, double multiplier) {
+        double damage = multiplier * weapon.getDamage();
         if (target.isDefending()) {
-            target.takeDamage((int) ( finalDamage * defendRate));
+            target.takeDamage( (int) (damage * (1 - getDefendRate())));
             target.setDefending(false);
         }
         else {
-            target.takeDamage((int) ( finalDamage ));
+            target.takeDamage((int) damage);
         }
-    }
-
-    @Override
-    public void lightAttack(Entity target){
-        attack(target,1);
     };
 
     @Override
-    public void heavyAttack(Entity target){
-        attack(target,2);
-        mp -= weapon.getManaCost();
+    public abstract void lightAttack(Entity target);
+
+    @Override
+    public abstract void heavyAttack(Entity target);
+
+    @Override
+    public void defend(){
+        setDefending(true);
     };
 
     @Override
-    public void defend() {
-       setDefending(true);
-       mp -= 10;
-    }
-
-    @Override
-    public void specialAbility(){};
+    public abstract void specialAbility(Entity target);
 
 
     @Override
@@ -69,8 +63,6 @@ public abstract class Player implements Entity, combatOptions {
         if (hp > maxHP) {
             hp = maxHP;
         }
-
-        mp -= 20;
     }
 
     @Override
@@ -99,6 +91,10 @@ public abstract class Player implements Entity, combatOptions {
         return mp;
     }
 
+    public void setMp(int mp) {
+        this.mp = mp;
+    }
+
     @Override
     public int getMaxMP() {
         return maxMP;
@@ -118,4 +114,8 @@ public abstract class Player implements Entity, combatOptions {
     @Override
     public void setDefending(boolean defending) { this.defending = defending; }
 
+    public double getDefendRate() { return defendRate; }
+
+    public void setDefendRate(double defendRate) { this.defendRate = defendRate; }
+
 }

Java-Knight/src/main/java/org/project/entity/players/combatOptions.java

@@ -7,6 +7,6 @@ public interface combatOptions {
     void lightAttack(Entity target);
     void heavyAttack(Entity target);
     void defend();
-    void heal();
-    void specialAbility();
+    void heal(int health);
+    void specialAbility(Entity target);
 }

Java-Knight/src/main/java/org/project/item/weapons/Weapon.java

@@ -1,9 +1,10 @@
 package org.project.item.weapons;
 
 import org.project.entity.Entity;
+import org.project.item.Item;
 
-// TODO: UPDATE IMPLEMENTATION
-public abstract class Weapon {
+
+public abstract class Weapon implements Item {
     private int damage;
     private int manaCost;