Changed to .json

.eslintrc.json

@@ -0,0 +1,70 @@
+{
+  "env": {
+    "browser": true,
+    "es2021": true
+  },
+  "globals": {
+    "Game": "writable",
+    "l": "readonly",
+    "b64_to_utf8": "readonly",
+    "utf8_to_b64": "readonly",
+    "BeautifyAll": "readonly",
+    "PlaySound": "readonly"
+  },
+  "extends": [
+    "airbnb-base",
+    "plugin:prettier/recommended"
+  ],
+  "parserOptions": {
+    "ecmaVersion": 12
+  },
+  "plugins": [
+    "@typescript-eslint"
+  ],
+  "overrides": [
+    {
+      "files": [
+        "src/**/*.{ts,tsx}"
+      ],
+      "extends": [
+        "plugin:@typescript-eslint/recommended"
+      ],
+      "parser": "@typescript-eslint/parser",
+      "rules": {
+        "import/extensions": "off", // To allow importing .ts without errors
+        "import/no-unresolved": "off" // To allow importing .ts without errors
+      }
+    }
+  ],
+  "ignorePatterns": [
+    "*CookieMonster*.js",
+    "dist/*",
+    "node_modules/*"
+  ],
+  "rules": {
+    "import/no-mutable-exports": "off", // We need to this throughout Cookie Monster
+    "no-plusplus": [
+      "error",
+      {
+        "allowForLoopAfterthoughts": true
+      }
+    ],
+    "func-names": "off", // To allow unnamed arrow functions
+    "prefer-destructuring": [
+      "error",
+      {
+        "object": true,
+        "array": false
+      }
+    ], // Importing arrays and then destructuring them seems to fail
+    "max-len": [
+      1,
+      {
+        "code": 100,
+        "ignoreComments": true,
+        "ignoreStrings": true,
+        "ignoreTemplateLiterals": true
+      }
+    ]
+  }
+}