RPGMV/RPGMZ save importer for browsers

README.md

Why this?

RPGMV/RPGMZ games can run on Web browsers, so you can upload your local copy of the game to somewhere only you can see and run it anywhere.

The problem is: the save data.

This small tool allows you to import the save data you uploaded into your Web browser.

How to use

• Put this import.html under ./www folder.
• Upload the folder altogether.
• In the Web browser you want to use, open import.html under the URL of the game, and click the button.
  • Warning: all existing save data will be lost.
• Open the URL of the game and start playing.

import.html

<script type="module">
  const MAX_SAVES = 20;
  const files = ["common", "config", "global"];
  for (let i = 1; i <= MAX_SAVES; i++) {
    files.push(`file${i}`);
  }

  const logArea = document.querySelector("#log-area");
  function log(...args) {
    console.log(...args);
    for (const arg of args) {
      logArea.innerText += `${arg}\n`;
    }
  }

  const importButton = document.querySelector("#import-button");
  importButton.addEventListener("click", async (e) => {
    e.preventDefault();
    try {
      importButton.disabled = true;
      log("Importing...");
      for (const name of files) {
        const key = `RPG ${name[0].toUpperCase()}${name.substring(1)}`;
        const resp = await fetch(`./save/${name}.rpgsave`);
        if (resp.status === 404) {
          log(`${name}: not found`);
          localStorage.removeItem(key)
        } else if (resp.ok) {
          log(`${name}: found`);
          const text = await resp.text();
          localStorage.setItem(key, text)
        } else {
          throw new Error(`Got ${resp.status} when fetching ${name}`);
        }
      }
      log("Done.");
    } catch (e) {
      log(e);
      throw e;
    } finally {
      importButton.disabled = false;
    }
  });
</script>
<button id="import-button">Import!</button>
<pre id="log-area"></pre>