Solution to level 11 in Untrusted: http://alex.nisnevich.com/untrusted/

http://alex.nisnevich.com/untrusted/ · GitHub

/* * robot.js * * You'll need three keys in order to unlock the * Algorithm: the red key, the green key, and the * blue key. Unfortunately, all three of them are * behind human-proof barriers. * * The plan is simple: reprogram the maintenance * robots to grab the key and bring it through * the barrier to us. * * Let's try it on the red key first. */

function getRandomInt(min, max) { return Math.floor(Math.random() * (max - min + 1)) + min; }

function startLevel(map) { // Hint: you can press R or 5 to "rest" and not move the // player, while the robot moves around.

map.placePlayer(map.getWidth()-2, map.getHeight()-2); var player = map.getPlayer();

map.defineObject('robot', { 'type': 'dynamic', 'symbol': 'R', 'color': 'gray', 'onCollision': function (player, me) { me.giveItemTo(player, 'redKey'); }, 'behavior': function (me) { // Available commands: me.move(direction) // and me.canMove(direction) if (me.canMove('right')) me.move('right'); else me.move('down');

} });

map.defineObject('barrier', { 'symbol': '░', 'color': 'purple', 'impassable': true, 'passableFor': ['robot'] });

map.placeObject(0, map.getHeight() - 1, 'exit'); map.placeObject(1, 1, 'robot'); map.placeObject(map.getWidth() - 2, 8, 'redKey'); map.placeObject(map.getWidth() - 2, 9, 'barrier');

for (var x = 0; x < map.getWidth(); x++) { map.placeObject(x, 0, 'block'); if (x != map.getWidth() - 2) { map.placeObject(x, 9, 'block'); } }

for (var y = 1; y < 9; y++) { map.placeObject(0, y, 'block'); map.placeObject(map.getWidth() - 1, y, 'block'); } }

function validateLevel(map) { map.validateExactlyXManyObjects(1, 'exit'); map.validateExactlyXManyObjects(1, 'robot'); map.validateAtMostXObjects(1, 'redKey'); }

function onExit(map) { if (!map.getPlayer().hasItem('redKey')) { map.writeStatus("We need to get that key!"); return false; } else { return true; } }