Javascript 1.4

// Zaidejo pasirinktas sudetingumo lygis
var gameLevel;

// Zaidejo pasirinktas ginklas
var playerWeapon;

// Zaidejo pasirinkti sarvai
var playerArmor;

var player = {};
var dragon = {};


/* Zaidejo sudetingumo lygio ir ginklu pasirinkimai */
gameLevel = requestInteger("Pasirinkite zaidimo sudetingumo lygi: \n 1. Lengvas, \n 2. Normalus, \n 3. Sudetingas");
player.weapon = requestInteger("Pasirinkite zaidimo ginkla: \n 1. Medinis, \n 2. Metalinis, \n 3. Ekskaliburas");
player.armor = requestInteger("Pasirinkite sarvus: 1 2 3");


function requestInteger(message) {
    var number;

    while(isNaN(number) || number < 1 || number > 3) {
        number = parseInt(window.prompt(message));
    }

    return number;
}



/* Pagal sudetingumo lygi nustatom kiek musu priesininkas tures gyvybiu */
if(gameLevel == 1) {
    dragon.hp = getRandomInteger(100, 150);
} else if(gameLevel == 2) {
    dragon.hp = getRandomInteger(150, 200);
} else if(gameLevel == 3) {
    dragon.hp = getRandomInteger(250, 300);
}
/* Zaidejas visada tures 200 gyvybiu */
player.hp = 200;
console.log(player);

var round = 0;
while(dragon.hp > 0 && player.hp > 0) {
    /* Sugeneruojame atsitiktini skaiciu abiems zaidejams,
    kad nusprestume kuris gaus teise pulti */
    player.speed = getRandomInteger(1, 100);
    dragon.speed = getRandomInteger(1,100);

    if(player.speed > dragon.speed) {
        // Puls zaidejas
        // Drakonas praranda gyvybiu
        player.damage = countPlayerDamage();
        dragon.hp -= player.damage;
        console.log("Puola zaidejas, padare zalos: " + player.damage);

    } else if(dragon.speed > player.speed) {
        // Puls drakonas
        // Zaidejas praranda gyvyvbiu
        dragon.damage = countDragonDamage();
        player.hp -= dragon.damage;
        console.log("Puola drakonas, padare zalos: " + dragon.damage);
    } else {
        // Abieju zaideju greicia vienodi
        console.log("Lygiosios");
    }
    round += 1;
    console.log("-----------------------------");
    console.log("Vyksta raundas nr: " + round);
    console.log("Zaidejo gyvybes: " + player.hp);
    console.log("Drakono gyvybes: " + dragon.hp);
}

if(dragon.hp < 1) {
    alert("Zaidejas laimejo");
} else {
    alert("Drakonas laimejo");
}


function countPlayerDamage() {
    damage = getRandomInteger(10,15);
    damage += player.weapon;

    return parseInt(damage);
}

function countDragonDamage() {
    var damage = 0;
    damage = getRandomInteger(10,15);
    damage -= player.armor;

    return parseInt(damage);
}



function getRandomInteger(min, max)
{
    // Returns a random integer included between min and max arguments included
    return Math.floor(Math.random() * (max - min + 1)) + min;
}