// Get to the oasis. Watch out for new enemies: ogre scouts!
// Go up and right by adding to the current X and Y position.

while(true) {
    // If there's an enemy, attack.
    var enemy = hero.findNearestEnemy();
    if (enemy) {
        hero.attack(enemy);

    }
    // Else, keep moving up and to the right.
    else {
        hero.moveXY(hero.pos.x + 1, hero.pos.y + 1);
    }
}

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