Solution to level 10 in Untrusted: http://alex.nisnevich.com/untrusted/

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

/************* * ambush.js * ************* * * Oh. Oh, I see. This wasn't quite part of the plan. * * Looks like they won't let you take the Algorithm * without a fight. You'll need to carefully weave your * way through the guard drones. * * Well, time to improvise. Let's mess with their programming * a little, shall we? */

function startLevel(map) { function moveToward(obj, type) { var target = obj.findNearest(type); var leftDist = obj.getX() - target.x; var upDist = obj.getY() - target.y;

var direction; if (upDist == 0 && leftDist == 0) { return; } if (upDist > 0 && upDist >= leftDist) { direction = 'up'; } else if (upDist < 0 && upDist < leftDist) { direction = 'down'; } else if (leftDist > 0 && leftDist >= upDist) { direction = 'left'; } else { direction = 'right'; }

if (obj.canMove(direction)) { obj.move(direction); } }

map.defineObject('attackDrone', { 'type': 'dynamic', 'symbol': 'd', 'color': 'red', 'onCollision': function (player) { player.killedBy('an attack drone'); }, 'behavior': function (me) { if (me.canMove('up')) me.move('up'); me.move('left'); } });

map.defineObject('reinforcementDrone', { 'type': 'dynamic', 'symbol': 'd', 'color': 'yellow', 'onCollision': function (player) { player.killedBy('a reinforcement drone'); }, 'behavior': function (me) { if (me.canMove('up')) me.move('up'); } });

map.defineObject('defenseDrone', { 'type': 'dynamic', 'symbol': 'd', 'color': 'green', 'onCollision': function (player) { player.killedBy('a defense drone'); }, 'behavior': function (me) { if (me.canMove('up')) me.move('up'); else me.move('right'); } });

// just for decoration map.defineObject('water', { 'symbol': '░', 'color': '#44f' });

map.placePlayer(0, 12);

for (var x = 0; x < map.getWidth(); x++) { map.placeObject(x, 10, 'block'); map.placeObject(x, 14, 'block');

for (var y = 20; y < map.getHeight(); y++) { map.placeObject(x, y, 'water'); } }

map.placeObject(23, 11, 'attackDrone'); map.placeObject(23, 12, 'attackDrone'); map.placeObject(23, 13, 'attackDrone');

map.placeObject(27, 11, 'defenseDrone'); map.placeObject(27, 12, 'defenseDrone'); map.placeObject(27, 13, 'defenseDrone');

map.placeObject(24, 11, 'reinforcementDrone'); map.placeObject(25, 11, 'reinforcementDrone'); map.placeObject(26, 11, 'reinforcementDrone'); map.placeObject(24, 13, 'reinforcementDrone'); map.placeObject(25, 13, 'reinforcementDrone'); map.placeObject(26, 13, 'reinforcementDrone');

map.placeObject(map.getWidth()-1, 12, 'exit'); }

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