A walkthrough is the set of steps or commands that you can record in the editor, and then play during the game. Quest lets you record and play back walkthroughs, allowing you to test your game - after making changes, you can run your walkthrough to ensure your game is still winnable, and that any alternative endings also still work.
Another use for walkthroughs is when you have a problem with Quest - it helps hugely if we can play your game through to the required point, and a walkthrough will take us straight there.
You can record and play back walkthroughs from the Editor, or you can also play a walkthrough from within a game by going to the Tools menu. Walkthroughs are automatically removed from published .quest files.
To add a walkthrough, you can right-click the tree and choose “Add Walkthrough”, or you can go via the “Add” menu. Give the walkthrough a name to describe it, for example “win game”.
Now you’ll see the walkthrough editor. Here you can add, edit and delete steps manually, and you can also click the Play and Record buttons. If you click Record, any existing steps in your walkthrough will be run, and then any new moves that you make will be added to the end. Click the Record button now and make a few moves. When you’re done, click File, then Stop Game.
You’ll see that the walkthrough editor has now been updated with the moves you made in the game. The walkthrough will also record any selections you made from menus which appeared.
If you want to add steps to an existing walkthrough, choose this walkthrough und click the Record button. The walkthrough is then executed and all new moves will be appended.
Many of your walkthroughs may share the same steps - for example, if your game has multiple endings, there may be points in the walkthrough where you want to “branch off”. Quest lets you handle this by creating a hierarchy of walkthroughs - if you move one walkthrough in the tree to be a child of another walkthrough, when the child walkthrough is run, it will run all the steps of its parent walkthrough(s) first.
Currently you need to go into Full Code View to create a sub-walkthough.
You can manually add a menu selection to a walkthrough by preceding it with “menu:”
For example if you have two objects “potato” and “potassium”, you can put this in the walkthrough:
You can also add an answer to a question by preceding it with “answer:”
For example if somebody asks you a question when you speak to them, put this in the walkthrough:
speak to Bill
If you forget to put in these two statements, the walkthrough will immediately stop.
As of Quest 5.1, you can use walkthrough assertions to test your game. Simply include a line starting with “assert:”, and then any expression which should be true.
For example, in the walkthrough below, the assert expression checks that the “take biscuit” command succeeded:
look at tin
look at biscuit
assert:biscuit.parent = player
If a walkthrough assert expression returns false, the walkthrough is immediately stopped.