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Noitool

A web app with many things Noita.

Helps you get a specific seed for your specific needs.

Current features include:

  • Get seed info
  • Search for a seed
  • Live seed info viewer

Technical details and implementation details that I found interesting

The code for finding LC and AP values was transferred from noita_unicorn's Program.cs from c# to c++.

Also, I took inspiration from cr4xy for extra features. You rock! <3

The c++ code is then compiled to wasm and is run in web workers (and partly in the main thread). The performance improvements are 20-fold by transferring seed functions (like randoms and lc & ap recipes) from a typescript implementation to c++, even with the call overhead from worker -> wasm code.

For map generation, wang tiles are used. In lua/xml code, ARGB color formats are used for color targeting. In browsers, in general, RGB[A] is used. The transformed colors (in data json) use RGB[A] to homogenize color format.

Development

Prerequsites:

  • emscripten is installed
  • npm i -g google-closure-compiler
  • Node
  • Yarn

After extracting noita wak, run

find . -type f -not -path '*/\.*' -exec sed -i 's/----------------------//g' {} +;
find . -type f -not -path '*/\.*' -exec sed -i 's/<!------------ MATERIALS -------------------->/<!-- MATERIALS -->/g' {} +;
find . -type f -not -path '*/\.*' -exec sed -i 's/<!------------ MATERIALS ------------------ -->/<!-- MATERIALS -->/g' {} +;
find . -type f -not -path '*/\.*' -exec sed -i 's/<!-- attack_ranged_min_distance="60" -->//g' {} +;
find . -type f -not -path '*/\.*' -exec sed -i 's/<!---------------- shield ---------------- -->//g' {} +;

to fix comments for the xml parser

For emscripten, some edits need to be done to enable the closure compiler:

emscripten installation and required changes

I recommend using the git repo to install emsdk. Install the latest version.

After, there are a small amount of changes that might need to be done:

  • /usr/share/emscripten/tools/building.py

Here, go to line ~888 Verify that this is there:

def get_closure_compiler():
  # First check if the user configured a specific CLOSURE_COMPILER in thier settings
  if config.CLOSURE_COMPILER:
    return config.CLOSURE_COMPILER
  • ~/.emscripten

Add the closure compiler path to the config.

CLOSURE_COMPILER = ["<path to prefix>/bin/google-closure-compiler"]

To get the prefix, run:

npm config get prefix

Installation (after emscripten): yarn

Running: yarn dev