solved lab

src/viking.js

@@ -1,16 +1,137 @@
 // Soldier
-class Soldier {}
+class Soldier {
+  constructor(health, strength) {
+    this.health = health;
+    this.strength = strength;
+  }
+  attack() {
+    return this.strength;
+  }
+  receiveDamage(damage) {
+    this.health -= damage;
+    console.log(this.health);
+  }
+}
+
+let soldier1 = new Soldier(100, 60);
+console.log(soldier1.attack());
+console.log(soldier1.receiveDamage(30));
 
 // Viking
-class Viking {}
+class Viking extends Soldier {
+  constructor(name, health, strength) {
+    super(health, strength);
+    this.name = name;
+  }
+  receiveDamage(damage) {
+    this.health -= damage;
+    if (this.health > 0) {
+      return `${this.name} has received ${damage} points of damage`;
+    } else {
+      return `${this.name} has died in act of combat`;
+    }
+  }
+  battleCry() {
+    return 'Odin Owns You All!';
+  }
+}
+
+let Viking1 = new Viking('Eyob', 100, 60);
+console.log(Viking1.attack());
+console.log(Viking1.receiveDamage(10));
+console.log(Viking1.battleCry());
 
 // Saxon
-class Saxon {}
+class Saxon extends Soldier {
+  receiveDamage(damage) {
+    this.health -= damage;
+    if (this.health > 0) {
+      return `A Saxon has received ${damage} points of damage`;
+    } else {
+      return `A Saxon has died in combat`;
+    }
+  }
+}
+const Saxon1 = new Saxon(100, 60);
+console.log(Saxon1.attack());
+console.log(Saxon1.receiveDamage(100));
 
 // War
-class War {}
+class War {
+  constructor() {
+    this.vikingArmy = [];
+    this.saxonArmy = [];
+  }
+
+  addViking(viking) {
+    this.vikingArmy.push(viking);
+  }
+
+  addSaxon(saxon) {
+    this.saxonArmy.push(saxon);
+  }
+
+  vikingAttack() {
+    if (this.saxonArmy.length === 0 || this.vikingArmy.length === 0)
+      return 'No more enemies to attack!';
+
+    let randomViking =
+      this.vikingArmy[Math.floor(Math.random() * this.vikingArmy.length)];
+    let randomSaxon =
+      this.saxonArmy[Math.floor(Math.random() * this.saxonArmy.length)];
+
+    let result = randomSaxon.receiveDamage(randomViking.strength);
+
+    if (randomSaxon.health <= 0) {
+      this.saxonArmy = this.saxonArmy.filter((saxon) => saxon.health > 0);
+    }
+
+    return result;
+  }
+
+  saxonAttack() {
+    if (this.saxonArmy.length === 0 || this.vikingArmy.length === 0)
+      return 'No more enemies to attack!';
+
+    let randomViking =
+      this.vikingArmy[Math.floor(Math.random() * this.vikingArmy.length)];
+    let randomSaxon =
+      this.saxonArmy[Math.floor(Math.random() * this.saxonArmy.length)];
+
+    let result = randomViking.receiveDamage(randomSaxon.strength);
+
+    if (randomViking.health <= 0) {
+      this.vikingArmy = this.vikingArmy.filter((viking) => viking.health > 0);
+    }
+
+    return result;
+  }
+
+  showStatus() {
+    if (this.saxonArmy.length === 0) {
+      return 'Vikings have won the war of the century!';
+    } else if (this.vikingArmy.length === 0) {
+      return 'Saxons have fought bravely and survived another day...';
+    } else {
+      return 'Vikings and Saxons are still in the thick of battle.';
+    }
+  }
+}
+
+let war = new War();
+let viking1 = new Viking('Ragnar', 100, 50);
+let viking2 = new Viking('Lagertha', 90, 45);
+let saxon1 = new Saxon(60, 40);
+let saxon2 = new Saxon(50, 35);
 
+war.addViking(viking1);
+war.addViking(viking2);
+war.addSaxon(saxon1);
+war.addSaxon(saxon2);
 
+console.log(war.vikingAttack());
+console.log(war.saxonAttack());
+console.log(war.showStatus());
 
 // The following is required to make unit tests work.
 /* Environment setup. Do not modify the below code. */