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Solution to level 6 in Untrusted: http://alex.nisnevich.com/untrusted/
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/**************** | |
* drones101.js * | |
**************** | |
* | |
* Do you remember, my dear Professor, a certain introductory | |
* computational rationality class you taught long ago? Assignment | |
* #2, behavior functions of autonomous agents? I remember that one | |
* fondly - but attack drones are so much easier to reason about | |
* when they're not staring you in the face, I would imagine! | |
*/ | |
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) { | |
moveToward(me, 'player'); | |
} | |
}); | |
map.placePlayer(1, 1); | |
map.placeObject(map.getWidth()-2, 12, 'attackDrone'); | |
map.placeObject(map.getWidth()-1, 12, 'exit'); | |
map.placeObject(map.getWidth()-1, 11, 'block'); | |
map.placeObject(map.getWidth()-2, 11, 'block'); | |
map.placeObject(map.getWidth()-1, 13, 'block'); | |
map.placeObject(map.getWidth()-2, 13, 'block'); | |
for(var x = 0; x < map.getWidth()-3; x++) { | |
map.placeObject(x, 2, 'block'); | |
} | |
for(var y=2;y<10;y++){ | |
map.placeObject(map.getWidth()-3,y,'block'); | |
} | |
} | |
function validateLevel(map) { | |
map.validateExactlyXManyObjects(1, 'exit'); | |
} | |
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