solved lab

src/viking.js

@@ -1,11 +1,104 @@
 // Soldier
-class Soldier {}
+class Soldier {
+  constructor(health, strength) {
+    this.health = health;
+    this.strength = strength;
+  }
+  attack() {
+    return this.strength;
+  }
+  receiveDamage(damage) {
+    this.health -= damage;
+  }
+}
 
 // Viking
-class Viking {}
+class Viking extends Soldier {
+  constructor(name, health, strength) {
+    super(health, strength);
+    this.name = name;
+  }
+  receiveDamage(damage) {
+    this.health -= damage;
+    return this.health > 0
+      ? `${this.name} has received ${damage} points of damage`
+      : `${this.name} has died in act of combat`;
+  }
+  battleCry() {
+    return `Odin Owns You All!`;
+  }
+}
 
 // Saxon
-class Saxon {}
+class Saxon extends Soldier {
+  receiveDamage(damage) {
+    this.health -= damage;
+    return this.health > 0
+      ? `A Saxon has received ${damage} points of damage`
+      : `A Saxon has died in combat`;
+  }
+}
 
 // War
-class War {}
+class War {
+  constructor() {
+    this.vikingArmy = [];
+    this.saxonArmy = [];
+  }
+  addViking(Viking) {
+    this.vikingArmy.push(Viking);
+  }
+  addSaxon(Saxon) {
+    this.saxonArmy.push(Saxon);
+  }
+  vikingAttack() {
+    // how do we pick a random saxon or viking from their respective arrays?
+    // 1. Generate a random index in the two arrays
+    const randomSaxonIndex = Math.floor(Math.random() * this.saxonArmy.length);
+    const randomVikingIndex = Math.floor(
+      Math.random() * this.vikingArmy.length
+    );
+    const randomSaxon = this.saxonArmy[randomSaxonIndex];
+    const randomViking = this.vikingArmy[randomVikingIndex];
+    // 2. Use receiveDamage(), pass viking.strength as the input/argument for the damage
+    randomSaxon.receiveDamage(randomViking.strength);
+    // this.saxonArmy[randomSaxonIndex].receiveDamage(this.vikingArmy[randomVikingIndex].strength)
+    // if health < 0 --> remove the saxon from the army
+    if (randomSaxon.health <= 0) {
+      this.saxonArmy.splice(randomSaxonIndex, 1);
+      return "A Saxon has died in combat";
+    } else {
+      return `A Saxon has received ${randomViking.strength} points of damage`;
+    }
+  }
+  saxonAttack() {
+    const randomSaxonIndex = Math.floor(Math.random() * this.saxonArmy.length);
+    const randomVikingIndex = Math.floor(
+      Math.random() * this.vikingArmy.length
+    );
+    this.vikingArmy[randomVikingIndex].receiveDamage(
+      this.saxonArmy[randomSaxonIndex].strength
+    );
+
+    if (this.vikingArmy[randomVikingIndex].health <= 0) {
+      this.vikingArmy.splice(randomVikingIndex, 1);
+      return `${this.vikingArmy[randomVikingIndex].name} has died in act of combat`;
+    } else {
+      return `${this.vikingArmy[randomVikingIndex].name} has received ${this.saxonArmy[randomSaxonIndex].strength} points of damage`;
+    }
+  }
+  showStatus() {
+    let v = this.vikingArmy.length;
+    let s = this.saxonArmy.length;
+
+    if (s === 0 && v !== 0) {
+      return "Vikings have won the war of the century!";
+    }
+    if (v === 0 && s !== 0) {
+      return "Saxons have fought for their lives and survived another day...";
+    }
+    if (s !== 0 && v !== 0) {
+      return "Vikings and Saxons are still in the thick of battle.";
+    }
+  }
+}