Forums » Help » Best way to include external JSON files in ig.game namespace?

This might be a little more of a question about javascript than impactjs its self.

What would be the recommended approach to include external javascript files as variables in ig.game?

For example, I have

main.js
entities/player.js

what I would like is
main.js
conf/weapons.js
entities/player.js

where weapons.js would look something along the lines of
ig.game.weapons=
{
sword: { dmg: 1 },
pen: { dmg: 2 }
}


I realize I can just create a blank entity, but this doesn't feel intuitive to me because entities do not persist between map loads and they contain parent calls that aren't necessary for strictly configuration.

Thanks for any insight!

I see how it works now. I looked at _loadScript in impact.js to see how things were loaded.

I'm able to do what I wanted by creating a new file
conf/items.js

ig.module(
	'game.conf.items'
)
.requires(
	'impact.game'
)
.defines(function(){

ig.Game.prototype.ItemCatalog = {
  item1: 1,
};

});

Then adding game.conf.items to the requires in main.js.

the only problem i see with that is what happens when you change game states via ig.system.setGame(MyDifferentGameState); ? Perhaps you could just extend ig.Class in your module and either define it as a global or attach it to ig.

ig.module(
    'game.conf.items'
).requires(
    'impact.game'
).defines(function(){

    ig.global.ItemCatalog = ig.Class.extend({
        item1: 1,
    });

});

require the module in main then initialize it in your games init

this.itemCatalog = new ItemCatalog();

Im by no means an expert and also still new to Impact so take it with a large grain of salt. Just seemed a bit hacky to mess with the prototype. ;)

I agree with Jaha, it does seem a little hacky messing with prototype, to have objects available in the ig.game namespace you don't need to mess with prototype, or even extend ig.Class. What you should be doing is injecting the code you need into ig.Game (capital G not lowercase). Check out the docs here. Basically in reference to your original post, it would work like this: create a module that just injects into ig.Game any data you need. then require that in your main.js. Thats it. so for example weapons.js would look something like this:

##
ig.module('conf.weapons').requires('impact.game').defines(function(){
ig.Game.inject({
weapons: {
sword: 1,
pen: 2
} // and so on...
});
});
##

And Jaha theres no reason to worry about preserving data between game states you can use my handy dandy PersistantData Plugin. it allows you to transfer data between instances of ig.Game.