Web RPG - 存储对话框

I'd like to create an RPG in JavaScript. The RPG will have a lot of dialog in it. I have heard XML is the way to go..., but I have no experience using XML, and a good amount of experience with PHP and MySQL.

My questions are:

• Would it be better to store dialog in a MySQL database and access it with PHP using IDs? Or should I just keep it all on the front end by accessing XML files with Javascript?

• If I use XML, do I need to run the javascript on a webserver (Like WAMP)? Or can I parse it locally with:

  function parseXML() {
      xmlhttp=new window.XMLHttpRequest();
      xmlhttp.open("GET","dialog.xml",false);
      xmlhttp.send();
      xmlDoc=xmlhttp.responseXML;             
  }
  

(Which is currently giving the error XMLHttpRequest cannot load file:///C:/Users... Cross origin requests are only supported for HTTP.

• Even after reading up on XML, I'm still not sure how I can integrate it with JavaScript. Can someone help give me an example of how I could take a sample rpg XML dialog and meaningfully parse it in JavaScript?

Thank you

Give the input file a base url like http://localhost/rpgame/dialog.xml.

Why don't you use JSON instead? It's much easier to use from JavaScript code. While you're at it, avoid usind XMLHttpRequest by hand and use some library that handles the bad stuff for you (e.g., jQuery).

For the "dialog" part, I'm not sure what you're gonna use MySQL for. Anyway, you can use any form of storage on the server side, provided that your PHP scripts give well-formed replies to the client side code.

Would it be better to store dialog in a MySQL database and access it with PHP using IDs? Or should I just keep it all on the front end by accessing XML files with Javascript?

The main advantage of having a database here is that you gain a lot of flexibility. You can create/edit/delete a piece of dialogue and its relations quite easily and without having to maintain/regenerate a huge data file every time (As you would do with a XML or JSON or w/e formalism you choose).

On the other hand, this solution might be overkill if you just have simple dialogues with no relations and limited content.

Since you are about to do a game in Javascript, and if your content is not changing that much, you can consider a JSON encoding for your dialogues. You could parse the data instantly via Javascript and still have the possibility to make all kind of complex relations between dialogues as you would in XML.

If I use XML, do I need to run the javascript on a webserver (Like WAMP)? Or can I parse it locally with: ...

You have this error because you indeed need to run a server here. If you just want to do some tests, no need to use WAMP or whatever big webserver, just run a python server for now and that will do the trick.

cd /yourProject
python -m SimpleHTTPServer

Let the server run and open your browser at:

http://127.0.0.1:8000