commit 9fa168c399a3b6d9897c9cd80183f0ea85b9e8ba
Author: akanyan <alicechecker01@proton.me>
Date:   Thu May 30 11:02:47 2024 +0900

    initial commit

diff --git a/LICENSE b/LICENSE
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+++ b/LICENSE
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+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org/>
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diff --git a/README.md b/README.md
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+++ b/README.md
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+This tool upgrades OGKR charts from 1.6.0 (Act 2) to 1.7.0 (Act 3 (SDDT 1.45)). Useful for charts that were deleted in 1.45 or earlier. 
+
+### Why
+SDDT 1.45 added an extra number to `[B_PALETTE]` rows, used by Random Access Emotions and MEGALOVANIA, but seemingly set to 0 everywhere else. S*GA adjusted everything that was still in the game as of 1.45, but older deleted charts (e.g. Hibachi) load without any bullets. This script fixes that.
+
+### Usage
+```sh
+npm i
+npx tsc index.ts
+node index.js <Axyz/music>
+```
+Where `Axyz` is an omnimix option directory.
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diff --git a/index.ts b/index.ts
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+++ b/index.ts
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+import * as fs from 'fs/promises';
+import * as path from 'path';
+
+let g_count = 0;
+let g_countSkip = 0;
+
+const readChart = async (fname: string) => {
+    const data = (await fs.readFile(fname)).toString().split('\n');
+    let res: string[] = [];
+    let isBPalette = false;
+    let isCorrectVersion = false;
+    for(const line of data) {
+        if(line.startsWith('VERSION')) {
+            if(line.trim() === 'VERSION\t1\t6\t0') {
+                res.push('VERSION\t1\t7\t0\r\n');
+                isCorrectVersion = true;
+            }
+        } else if(line.startsWith('[')) {
+            isBPalette = line.trim() === '[B_PALETTE]';
+            res.push(line);
+        } else if(isBPalette) {
+            if(line.trim().length > 0) {
+                res.push(`${line.trim()}\t0\r\n`);
+            } else {
+                res.push(line);
+            }
+        } else {
+            res.push(line);
+        }
+    }
+    if(!isCorrectVersion) {
+        g_countSkip += 1;
+        console.log(`Skipped ${fname}`);
+    } else {
+        g_count += 1;
+        await fs.writeFile(fname, res);
+        console.log(`Updated ${fname}`);
+    }
+}
+
+(async () => {
+    if(process.argv.length < 3) {
+        console.log(`Usage: ${process.argv[0]} ${process.argv[1]} <Axyz/music>`);
+        return;
+    }
+    const p = process.argv[2];
+    const dirs = (await fs.readdir(p));
+
+    const promises: Promise<void>[] = [];
+    for(const dir of dirs) {
+        const subpath = path.join(p, dir);
+        const subdir = await fs.readdir(subpath);
+        for(const file of subdir) {
+            if(file.endsWith("ogkr")) {
+                promises.push(readChart(path.join(p, dir, file)));
+            }
+        }
+    }
+
+    await Promise.all(promises);
+
+    console.log(`${g_count} files updated, ${g_countSkip} files skipped.`);
+})();
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diff --git a/package-lock.json b/package-lock.json
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--- /dev/null
+++ b/package-lock.json
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+{
+  "name": "ogkr-upgrade-script",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "dependencies": {
+        "@types/node": "^20.12.13",
+        "typescript": "^5.4.5"
+      }
+    },
+    "node_modules/@types/node": {
+      "version": "20.12.13",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.12.13.tgz",
+      "integrity": "sha512-gBGeanV41c1L171rR7wjbMiEpEI/l5XFQdLLfhr/REwpgDy/4U8y89+i8kRiLzDyZdOkXh+cRaTetUnCYutoXA==",
+      "dependencies": {
+        "undici-types": "~5.26.4"
+      }
+    },
+    "node_modules/typescript": {
+      "version": "5.4.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.4.5.tgz",
+      "integrity": "sha512-vcI4UpRgg81oIRUFwR0WSIHKt11nJ7SAVlYNIu+QpqeyXP+gpQJy/Z4+F0aGxSE4MqwjyXvW/TzgkLAx2AGHwQ==",
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "engines": {
+        "node": ">=14.17"
+      }
+    },
+    "node_modules/undici-types": {
+      "version": "5.26.5",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
+      "integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA=="
+    }
+  }
+}
diff --git a/package.json b/package.json
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+++ b/package.json
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+{
+  "dependencies": {
+    "@types/node": "^20.12.13",
+    "typescript": "^5.4.5"
+  }
+}