update grammar file to reflect the logic

[lanhoang712]

Hello, if we define new predicates in the logic file, what would be the correct way to update the grammar for the game observation? i.e. if we have predicate_A in the logic file, how to set the observation to say the [obj] is [something related to predicate_A]?

[MarcCote]

Hi, here's a simple example that shows one way of doing it.

https://gist.github.com/MarcCote/336ab87ebc8d5c0cb1562beabf270a41

First, in a working directory, create a copy of the TextWorld built-in data using

tw-data

Next, copy statue.twl (from the gist) into textworld_data/logic/, house_statue.twg intextworld_data/text_grammars/, and save a copy of portable_statue.py in the working directory .

Then, make a new game

tw-make --third-party portable_statue.py tw-portable-statue --output games/tw-game.z8

You can try the game using the tw-play command

tw-play games/tw-game.z8

-= Museum =-
You've entered a Museum.

There is an ivory statue and a granite statue on the floor.

> x statue                                                                                                                                                    
Which do you mean, the ivory statue or the granite statue?

> ivory                                                                                                                                                       
The ivory statue looks vulnerable.

> x granite                                                                                                                                                   
It's a hefty granite statue.

>

You can also check out the tw-cooking challenge data to see a more complex example.

If you had something else in mind, let me know. :)

[lanhoang712]

Thank you so much @MarcCote :), much is appreciated. I will try the codes and report back if I have further questions on it.

[MarcCote]

I know TextWorld's documentation is a bit lacking in terms of customization (logic, grammar, of knowledge of Inform7, etc.). So, do not hesitate if you want to discuss more about what is possible to do.

[lanhoang712]

Thank you @MarcCote, I have run the code and it worked, thank you so much! I will close this issue. I do have some other questions on defining actions so will open another issue. Really appreciate your help.