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BCN-FT-SERGIO #4

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e188134
Update viking.js
mc100s Mar 22, 2019
e739b10
Update readme.md
mc100s Jun 7, 2019
cdd28d1
OOP Exercise completed
sergiocrol Jun 28, 2019
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18 changes: 10 additions & 8 deletions readme.md
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Original file line number Diff line number Diff line change
Expand Up @@ -62,32 +62,34 @@ Now we have to write the correct code in the `src/viking.js` file to make the te

```javascript
// Soldier
function Soldier () {}
class Soldier {}

// Viking
function Viking () {}
class Viking {}

// Saxon
function Saxon () {}
class Saxon {}

// War
function War () {}
class War {}
```

In this case, the test says that _Soldier constructor function should receive 2 arguments (health & strength)_, so we have to write the correct code that passes this test. Let's make the `Soldier` constructor function receive two arguments:

```javascript
// Soldier
function Soldier (healthArg, strengthArg) {}
class Soldier {
constructor(healthArg, strengthArg) {}
}

// Viking
function Viking () {}
class Viking {}

// Saxon
function Saxon () {}
class Saxon {}

// War
function War () {}
class War {}
```

**Execute all the tests**
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88 changes: 84 additions & 4 deletions starter-code/src/viking.js
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Original file line number Diff line number Diff line change
@@ -1,11 +1,91 @@
// Soldier
function Soldier() {}
function Soldier(health, strength) {
this.health = health;
this.strength = strength;
}

Soldier.prototype.attack = function() {
return this.strength;
}
Soldier.prototype.receiveDamage = function(damage) {
this.health = this.health - damage;
}

// Viking
function Viking() {}
function Viking(name, health, strength) {
Soldier.call(this, health, strength);
this.name = name;
}

Viking.prototype = Object.create(Soldier.prototype);
Viking.prototype.constructor = Viking;

Viking.prototype.battleCry = function() {
return "Odin Owns You All!";
}

Viking.prototype.receiveDamage = function(damage) {
this.health = this.health - damage;
var res = (this.health <= 0) ? `${this.name} has died in act of combat` : `${this.name} has received ${damage} points of damage`;
return res;
}

// Saxon
function Saxon() {}
function Saxon(health, strength) {
Soldier.call(this, health, strength);
}

Saxon.prototype = Object.create(Soldier.prototype);
Saxon.prototype.constructor = Saxon;

Saxon.prototype.receiveDamage = function(damage) {
this.health = this.health - damage;
var res = (this.health <= 0) ? `A Saxon has died in combat` : `A Saxon has received ${damage} points of damage`;
return res;
}

// War
function War() {}
function War() {
this.vikingArmy = [];
this.saxonArmy = [];
}

War.prototype.addViking = function(Viking) {
this.vikingArmy.push(Viking);
}

War.prototype.addSaxon = function(Saxon) {
this.saxonArmy.push(Saxon);
};

War.prototype.vikingAttack = function() {
var saxon = this.saxonArmy[Math.floor(Math.random()*this.saxonArmy.length)];
var viking = this.vikingArmy[Math.floor(Math.random()*this.vikingArmy.length)];
var attackResult = saxon.receiveDamage(viking.strength);
if(attackResult === 'A Saxon has died in combat') {
this.saxonArmy.splice(this.saxonArmy.indexOf(saxon), 1);
}
return attackResult;
};

War.prototype.saxonAttack = function() {
var saxon = this.saxonArmy[Math.floor(Math.random()*this.saxonArmy.length)];
var viking = this.vikingArmy[Math.floor(Math.random()*this.vikingArmy.length)];
var attackResult = viking.receiveDamage(saxon.strength);
if(attackResult === viking.name + " has died in act of combat") {
this.vikingArmy.splice(this.vikingArmy.indexOf(viking), 1);
}
return attackResult;
};

War.prototype.showStatus = function() {
var res = "";
if(this.saxonArmy.length === 0) {
res = "Vikings have won the war of the century!";
}else if(this.vikingArmy.length === 0) {
res = "Saxons have fought for their lives and survive another day...";
}else{
res = "Vikings and Saxons are still in the thick of battle.";
}
return res;
};
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