commit

src/viking.js

@@ -1,14 +1,285 @@
 // Soldier
-class Soldier {}
+// Iteration 1: Soldier
+// Modify the Soldier class and add 2 methods to it: attack(), and receiveDamage().
 
+// class
+// should receive 2 arguments (health & strength)
+
+// should receive the health property as its 1st argument
+
+// should receive the strength property as its 2nd argument
+
+// attack() method
+// should be a function
+
+// should receive 0 arguments
+
+// should return the strength property of the Soldier
+
+// receiveDamage() method
+// should be a function
+
+// should receive 1 argument (the damage)
+
+// should remove the received damage from the health property
+
+// shouldn't return anything
+
+
+class Soldier {
+constructor(health, strength) {
+  this.health = health;
+  this.strength = strength;
+  }
+attack() {
+  return this.strength;
+}
+
+receiveDamage(damage) {
+  this.health -= damage;
+}
+}
 // Viking
-class Viking {}
+// Iteration 2: Viking
+// A Viking is a Soldier with an additional property, their name. They also have a different receiveDamage() method and new method, battleCry().
+
+// Modify the Viking class, have it inherit from Soldier, re-implement the receiveDamage() method for Viking, and add a new battleCry() method.
+
+// inheritance
+// Viking should extend Soldier
+// class
+// should receive 3 arguments (name, health & strength)
+
+// should receive the name property as its 1st argument
+
+// should receive the health property as its 2nd argument
+
+// should receive the strength property as its 3rd argument
+
+// attack() method
+// (This method should be inherited from Soldier, no need to re-implement it.)
+
+// should be a function
+
+// should receive 0 arguments
+
+// should return the strength property of the Viking
+
+// receiveDamage() method
+// This method needs to be re-implemented for Viking because the Viking version needs to have different return values.
+
+// should be a function
+
+// should receive 1 argument (the damage)
+
+// should remove the received damage from the health property
+
+// if the Viking is still alive, it should return "NAME has received DAMAGE points of damage"
+
+// if the Viking dies, it should return "NAME has died in act of combat"
+
+// battleCry() method
+
+// should be a function
+
+// should receive 0 arguments
+
+// should return "Odin Owns You All!"
+class Viking extends Soldier{
+  constructor(name, health, strength){
+  super(health, strength);
+  this.name = name;
+}
+receiveDamage(damage){
+  super.receiveDamage(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!"
+}
+}
 
 // Saxon
-class Saxon {}
+// Iteration 3: Saxon
+// A Saxon is a weaker kind of Soldier. Unlike a Viking, a Saxon has no name. Their receiveDamage() method will also be different than the original Soldier version.
+
+// Modify the Saxon, constructor function, have it inherit from Soldier and re-implement the receiveDamage() method for Saxon.
+
+// inheritance
+// Saxon should extend Soldier
+// class
+// You don't have to include constructor method since this class will inherit perfectly from the parents class, both, the health and the strength (it extends Soldier class 😉 )
+// attack() method
+// This method should be inherited from Soldier, no need to re-implement it.
+
+// should be a function
+
+// should receive 0 arguments
+
+// should return the strength property of the Saxon
+
+// receiveDamage() method
+// This method needs to be re-implemented for Saxon because the Saxon version needs to have different return values.
+
+// should be a function
+
+// should receive 1 argument (the damage)
+
+// should remove the received damage from the health property
+
+// if the Saxon is still alive, it should return "A Saxon has received DAMAGE points of damage"
+
+// if the Saxon dies, it should return "A Saxon has died in combat"
+class Saxon extends Soldier
+{
+  attack()
+  {
+    return this.strength;
+  }
+  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';
+  }
+}
 
 // War
-class War {}
+// BONUS - Iteration 4: War
+// Now we get to the good stuff: WAR! Our War class will allow us to have a Viking army and a Saxon army that battle each other.
+
+// Modify the War class and add 5 methods to its class:
+
+// addViking()
+
+// addSaxon()
+
+// vikingAttack()
+
+// saxonAttack()
+
+// showStatus()
+
+// class
+// When we first create a War, the armies should be empty. We will add soldiers to the armies later.
+
+// should receive 0 arguments
+
+// should assign an empty array to the vikingArmy property
+
+// should assign an empty array to the saxonArmy property
+
+// addViking() method
+// Adds 1 Viking to the vikingArmy. If you want a 10 Viking army, you need to call this 10 times.
+
+// should be a function
+
+// should receive 1 argument (a Viking object)
+
+// should add the received Viking to the army
+
+// shouldn't return anything
+
+// addSaxon() method
+// The Saxon version of addViking().
+
+// should be a function
+
+// should receive 1 argument (a Saxon object)
+
+// should add the received Saxon to the army
+
+// shouldn't return anything
+
+// vikingAttack() method
+// A Saxon (chosen at random) has their receiveDamage() method called with the damage equal to the strength of a Viking (also chosen at random). This should only perform a single attack and the Saxon doesn't get to attack back.
+
+// should be a function
+
+// should receive 0 arguments
+
+// should make a Saxon receiveDamage() equal to the strength of a Viking
+
+// should remove dead saxons from the army
+
+// should return result of calling receiveDamage() of a Saxon with the strength of a Viking
+
+// saxonAttack() method
+// The Saxon version of vikingAttack(). A Viking receives the damage equal to the strength of a Saxon.
+
+// should be a function
+
+// should receive 0 arguments
+
+// should make a Viking receiveDamage() equal to the strength of a Saxon
+
+// should remove dead vikings from the army
+
+// should return result of calling receiveDamage() of a Viking with the strength of a Saxon
+class War {
+  constructor() {
+    this.vikingArmy = [];
+    this.saxonArmy = [];
+  }
+
+  addViking(viking) {
+    this.vikingArmy.push(viking);
+  }
+
+  addSaxon(saxon) {
+    this.saxonArmy.push(saxon);
+  }
+  vikingAttack() {
+    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];
+
+    const damageResult = randomSaxon.receiveDamage(randomViking.attack());
+
+    if (randomSaxon.health <= 0) {
+      this.saxonArmy.splice(randomSaxonIndex, 1);
+    }
+
+    return damageResult;
+  }
+  saxonAttack() {
+    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];
+
+    const damageResult = randomViking.receiveDamage(randomSaxon.attack());
+
+    if (randomViking.health <= 0) {
+      this.vikingArmy.splice(randomVikingIndex, 1);
+    }
+
+    return damageResult;
+  }
+  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 for their lives and survived another day...";
+    }
+    else {
+      return "Vikings and Saxons are still in the thick of battle.";
+    }
+  }
+}
+