src/main/java/Action/learnSpellAction.java

@@ -0,0 +1,19 @@
+package Action;
+
+import Job.HasJob;
+import Job.Wizard;
+
+public class learnSpellAction implements Action {
+    @Override
+    public void exectue(Actor actor) {
+        Wizard wizard = requireWizard(actor);
+        wizard.learnSpell(actor);
+    }
+
+    private Wizard requireWizard(Actor actor) {
+        if (actor instanceof HasJob hasJob && hasJob.getJob() instanceof Wizard wizard) {
+            return wizard;
+        }
+        throw new IllegalStateException(actor + " cannot perform this action without being a Wizard!");
+    }
+}

src/main/java/Character/HasSpellBook.java

@@ -0,0 +1,7 @@
+package Character;
+
+import java.util.List;
+
+public interface HasSpellBook {
+    List<String> getSpellBook();
+}

src/main/java/Entity/Player.java

@@ -6,6 +6,7 @@ import Combat.HasHealth;
 import Job.Job;
 import Job.HasJob;
 import Inventory.HasInventory;
+import Inventory.HasSpellBook;
 
 import java.util.LinkedList;
 import java.util.List;
@@ -15,6 +16,7 @@ public class Player extends Entity implements Movable, Actor, HasInventory, HasJ
     protected Job job;
     protected Position position;
     protected List<String> items = new LinkedList<>();
+    protected List<String> spells = new LinkedList<>();
     public Player(String name, Job job) {
         super(name);
         this.job = job;
@@ -49,6 +51,8 @@ public class Player extends Entity implements Movable, Actor, HasInventory, HasJ
         return items;
     }
 
+    public List<String> getSpellBook() {return spells;}
+
     @Override
     public void performAction(Action action) {
         action.exectue(this);

src/main/java/Inventory/HasSpellBook.java

@@ -0,0 +1,7 @@
+package Inventory;
+
+import java.util.List;
+
+public interface HasSpellBook {
+    List<String> getSpellBook();
+}

src/main/java/Job/Wizard.java

@@ -0,0 +1,24 @@
+package Job;
+
+import Action.Actor;
+import Character.HasSpellBook;
+
+public class Wizard extends Job {
+    public Wizard() {super("Wizard");}
+
+    public void learnSpell(Actor actor) {
+        if(actor instanceof HasSpellBook a ) {
+            a.getSpellBook().add("Fireball");
+        }
+    }
+
+    @Override
+    public int getExperience() {
+        return experience;
+    }
+
+    @Override
+    public void gainExperience(int exp) {
+        experience += exp;
+    }
+}

src/test/java/PlayerTest.java

@@ -1,8 +1,10 @@
 import Action.DigAction;
+import Action.learnSpellAction;
 import Entity.Position;
 import Job.Miner;
 import Entity.Player;
 import org.junit.jupiter.api.Test;
+import Job.Wizard;
 
 import static org.junit.jupiter.api.Assertions.*;
 

src/test/java/WizardTest.java

@@ -0,0 +1,7 @@
+import Job.Wizard;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+public class WizardTest {
+
+}