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Created July 24, 2015 08:23
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Solution to level 13 in Untrusted: http://alex.nisnevich.com/untrusted/
/*
* robotMaze.js
*
* The blue key is inside a labyrinth, and extracting
* it will not be easy.
*
* It's a good thing that you're a AI expert, or
* we would have to leave empty-handed.
*/
function startLevel(map) {
// Hint: you can press R or 5 to "rest" and not move the
// player, while the robot moves around.
map.getRandomInt = function(min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
}
map.placePlayer(map.getWidth()-1, map.getHeight()-1);
var player = map.getPlayer();
map.defineObject('robot', {
'type': 'dynamic',
'symbol': 'R',
'color': 'gray',
'onCollision': function (player, me) {
me.giveItemTo(player, 'blueKey');
},
'behavior': function (me) {
if (typeof(me.mapSquareColors) == "undefined") {
var currentSet = map.getAdjacentEmptyCells(map.getWidth() - 2, 8);
//currentSet = new Set(currentSet);
var currentColor = 0xFFD700; // gold
me.mapSquareColors = new Array(map.getWidth());
for (x = 0; x < map.getWidth(); x++) {
me.mapSquareColors[x] = new Array(map.getHeight());
}
while (me.mapSquareColors[me.getX()][me.getY()] == undefined) {
currentColor -= 2;
var newSet = []
for (i = 0; i < currentSet.length; i++) {
var move = currentSet[i];
var coordinates = move[0];
var x = coordinates[0];
var y = coordinates[1];
var colorString = "#" + currentColor.toString(16);
if (me.mapSquareColors[x][y] == undefined) {
map.setSquareColor(x, y, colorString);
me.mapSquareColors[x][y] = colorString;
var newMoves = map.getAdjacentEmptyCells(x, y);
for (j = 0; j < newMoves.length; j++) {
move = newMoves[j];
newSet.push(move);
}
}
}
currentSet = newSet;
}
} else {
var moves = map.getAdjacentEmptyCells(me.getX(), me.getY())
console.log(["Turn 2: ", moves]);
var bestColor = me.mapSquareColors[me.getX()][me.getY()];
var bestMove = "down";
for (i = 0; i < moves.length; i++) {
var move = moves[i];
var x = move[0][0];
var y = move[0][1];
if (me.mapSquareColors[x][y] > bestColor) {
bestColor = me.mapSquareColors[x][y];
bestMove = move[1];
}
}
me.move(bestMove);
}
}
});
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, 'blueKey');
map.placeObject(map.getWidth() - 2, 9, 'barrier');
var autoGeneratedMaze = new ROT.Map.DividedMaze(map.getWidth(), 10);
autoGeneratedMaze.create( function (x, y, mapValue) {
// don't write maze over robot or barrier
if ((x == 1 && y == 1) || (x == map.getWidth() - 2 && y >= 8)) {
return 0;
} else if (mapValue === 1) { //0 is empty space 1 is wall
map.placeObject(x,y, 'block');
} else {
map.placeObject(x,y,'empty');
}
});
}
function validateLevel(map) {
map.validateExactlyXManyObjects(1, 'exit');
map.validateExactlyXManyObjects(1, 'robot');
map.validateAtMostXObjects(1, 'blueKey');
}
function onExit(map) {
if (!map.getPlayer().hasItem('blueKey')) {
map.writeStatus("We need to get that key!");
return false;
} else {
return true;
}
}
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