Switch to npm

.github/workflows/nodejs.yml

@@ -21,6 +21,6 @@ jobs:
       uses: actions/setup-node@v1
       with:
         node-version: ${{ matrix.node-version }}
-    - run: yarn
-    - run: yarn build
-    - run: yarn test
+    - run: npm install
+    - run: npm run build
+    - run: npm test

.gitignore

@@ -7,3 +7,4 @@ docs/
 node_modules/
 package-lock.json
 yarn-error.log
+yarn.lock

DOCUMENTATION.md

@@ -102,13 +102,13 @@ Scripts are checked with [eslint](https://eslint.org/), formatted with [prettier
 
 Additionally the ./tests folder contains the tests. Usually a test goes 1) create a game 2) modify the game state with one or more actions 3) assert that the final state is how it you expect.
 
-- `yarn test` tests everything once
-- `yarn test:watch` tests continously (good while developing)
-- `yarn test:coverage` check test code coverage
+- `npm test` tests everything once
+- `npm run test:watch` tests continously (good while developing)
+- `npm run test:coverage` check test code coverage
 
 Additionally you can run yarn eslint public --fix to automatically format all scripts according to the prettier standards.
 
-You can also just run ava directly and do as you please. Example: `yarn ava tests/actions.js --watch`
+You can also just run ava directly and do as you please. Example: `npm test tests/actions.js --watch`
 
 ## Footnotes