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Solution to level 3 in Untrusted: http://alex.nisnevich.com/untrusted/
/************************
* validationEngaged.js *
************************
*
* They're really on to us now! The validateLevel function
* has been activated to enforce constraints on what you can
* do. In this case, you're not allowed to remove any blocks.
*
* They're doing all they can to keep you here. But you
* can still outsmart them.
*/
function startLevel(map) {
map.placePlayer(map.getWidth()-7, map.getHeight()-5);
for (y = 10; y <= map.getHeight() - 3; y++) {
map.placeObject(5, y, 'block');
map.placeObject(map.getWidth() - 5, y, 'block');
}
for (x = 5; x <= map.getWidth() - 5; x++) {
map.placeObject(x, 7, 'block');
map.placeObject(x, map.getHeight() - 3, 'block');
}
//map.placeObject(map.getWidth()-8, map.getHeight()-5, "exit")
map.placeObject(7, 5, 'exit');
}
function validateLevel(map) {
numBlocks = 2 * (map.getHeight()-13) + 2 * (map.getWidth()-10);
map.validateAtLeastXObjects(numBlocks, 'block');
map.validateExactlyXManyObjects(1, 'exit');
}
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