You’ll still need to know about the classes that define game data, so that you can check or set that data as necessary.
RPG MAKER VX ACE UNEXPECTED FILE FORMAT CODE
If you’re actually using code to perform game logic, then you might write new methods that get fired in Events and set Switches to change basic game functionality. When RPG Maker goes to run that function, it’ll find your code, including the new definition for the window. If you’re just doing visual or UI tweaks, you’ll probably stick to modifying existing classes–for example, you might add a new command to an existing window. This is especially useful when you’re trying to affect enemy behavior in code you might have a Troop Event call Ruby code which sets a switch, and then use that switch to determine what actions the enemy might take. The easiest way to do this is set switches ( $game_switches, where n = the switch number) or variables ( $game_variables, where n = the variable number).
Whether you modify classes or call new methods from Events, you’ll usually need some way of getting data generated by those changes back out of your Ruby code. It can be easier if you want to build a process that is reusable or can vary greatly based on the current state of the game. This can be harder if you’re trying to do something complex or not well-documented. Instead of building out your process in RPG Maker’s point-and-click interface, you can simply write a method that performs all the same steps. (For non-coders: a method is a set of steps typically, they accept a set of parameters to customize how they behave and/or output a value.) MethodsĮvents in RPG Maker can call Ruby methods to set a variable or as part of a general script block.
RPG MAKER VX ACE UNEXPECTED FILE FORMAT WINDOWS
You can modify existing classes to “hook” in new functionality to the existing flow of the game, and create new classes that add new windows or game logic. Most game concepts, windows, and scenes are represented by classes (for non-coders: a template that defines a thing in the game world or on-screen specifically, what data it tracks and how it can interact with itself or other things). There are three ways you can use code to interact with your game: New/modified classes If I screwed anything up, it was easy to restart from scratch. I also found it helpful to create a “prototype” project–I could write code for the specific feature I wanted, test it in isolation until I got it right, and then copy-and-paste it into my real project. (You might even consider a source control solution like Git or Mercurial, which can make snapshots of your project.) One typo and your game could very well become unplayable (unless you can figure out what you did). I would strongly suggest making a backup of your game before you do any tinkering. I found this helpful when trying to work out non-obvious syntax errors. I’d also suggest installing Ruby for Windows alongside RPG Maker so you can try out your code in irb (an interactive command-line utility that allows you to write and run Ruby code a line at a time).
You won’t figure out you made a typo until you build and the game doesn’t run.
Getting a feel for Ruby syntax is rather important, as VX Ace doesn’t have nice features like syntax highlighting and checking.
You’ll need to know some basic programming concepts, like classes, methods, and arrays/dictionaries. As an aside: RPG Maker MV uses JavaScript, which might be a more recognizable language, and I assume the game structure similar.īefore you do anything in RPG Maker itself, I’d recommend playing with a few Ruby tutorials to get a feel for things. If you’ve ever written Python, like me, it’s easy to pick up (when you get stuck, just Google to see what the difference is). RPG Maker VX Ace uses Ruby for its scripting language. In fact, it looks like you can customize almost everything in the game through code, if you’re willing to dig into the default project library.
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