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74 lines
3.1 KiB
ReStructuredText
74 lines
3.1 KiB
ReStructuredText
Game Frozen or Stuck?
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=====================
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Infinite Loop in NetscriptJS
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----------------------------
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If your game is frozen or stuck in any way, then the most likely culprit is an
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infinitely running loop in :ref:`netscriptjs`. To get past the freezing, run the game with
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`?noScripts` in the URL:
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`https://bitburner-official.github.io/bitburner/?noScripts <https://bitburner-official.github.io/bitburner/?noScripts>`_
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Then, to fix your script, make sure you have a sleep or any other timed function like `hack()` or
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`grow()` in any infinite loops::
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while(true) {
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// This is an infinite loop that does something
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...
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await ns.sleep(1000); // Add a 1s sleep to prevent freezing
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}
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Also make sure that each while loop gets to `awaited` function or `break`, for example the next snippet has a sleep
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function, but it nor any possible conditional breaks are never reached and therefore will crash the game::
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while(true) {
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let currentMoney = ns.getServerMoneyAvailable("n00dles");
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let maxMoney = ns.getServerMaxMoney("n00dles");
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if (currentMoney < maxMoney/2){
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await ns.grow("n00dles");
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}
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if (currentMoney === maxMoney){
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break;
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}
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}
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If `n00dles` current money is, for example, 75% of the maximum money, the script will not reach neither `grow` nor `break` and crashes the game.
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Adding a sleep like in the first example, or changing the code so that `awaited` function or `break` is always reached, would prevent the crash.
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Common infinite loop when translating the server purchasing script in starting guide to :ref:`netscriptjs` is to have a
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while loop, that's condition's change is conditional::
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var ram = 8;
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var i = 0;
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while (i < ns.getPurchasedServerLimit()) {
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if (ns.getServerMoneyAvailable("home") > ns.getPurchasedServerCost(ram)) {
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var hostname = ns.purchaseServer("pserv-" + i, ram);
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ns.scp("early-hack-template.script", hostname);
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ns.exec("early-hack-template.script", hostname, 3);
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++i;
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}
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}
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if player does not currently have enough money to purchase a server, the `if`'s condition will be false and `++i` will not be reached.
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Since the script doesn't have `sleep` and value `i` will not change without the `if` being true, this will crash the game. Adding a `sleep`
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that is always reached would prevent the crash.
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Blackscreen
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-----------
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If the game window becomes a black screen without the game itself crashing, this is caused by
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the game running too many concurrent scripts (the game runs on a browser and each tab can only
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use so much ram until it crashes). Depending on which scripts are running and your hardware,
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this number can vary between 50000 to 100000 instances (in version 2.0.2. In prior versions this number
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was about 1/5th of that). To prevent this from happening make sure to :ref:`multithread<gameplay_scripts_multithreadingscripts>`
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the scripts as much as possible.
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Bug
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---
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Otherwise, the game is probably frozen/stuck due to a bug. To report a bug, follow
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the guidelines `here <https://github.com/bitburner-official/bitburner-src/blob/master/doc/CONTRIBUTING.md#reporting-bugs>`_.
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