I am adding an entity with a trading ability to my mod. The trades are defined using Json and I would like some help trying to figure out how to deserialize the file. I have looked through the Minecraft source to see how they do it and have googled, but I still do not understand how to do it. All help is appreciated.

 

Here is an example of how the Json is structured:

{
    "name": "Example Trade List",
    "professions": [
        {
            "name": "blacksmith",
            "careers": [
                {
                    "name": "toolsmith",
                    "offers": [
                        {
                            "output": {"id": "minecraft:golden_pickaxe", "meta": 0, "count": {"min": 1, "max": 4},
                                "tag":
                                {
                                    "ench": [{"id": 34, "level": 3}, {"id": 70, "level": 1}],
                                    "display": {"name": "Golden Pickaxe", "color": "FFFF55", "lore": ["A Golden Pickaxe", "Forged with magic"]}
                                }
                            },
                            "inputA": {"id": "minecraft:gold_ingot", "meta": 0, "count": {"min": 3, "max": 3}},
                            "inputB": {"id": "minecraft:stick", "meta": 0, "count": {"min": 2, "max": 2}},
                            "level": 0,
                            "stock": {"min": 2, "max": 4}
                        }
                    ]
                }
            ]
        }
    ]
}

 

Edited April 13, 20178 yr by LogicTechCorp

You shouldn't be manually parsing JSON files. You should be using a deserializer.

12 hours ago, Draco18s said:

You shouldn't be manually parsing JSON files. You should be using a deserializer.

I think I have all of the groundwork set up. Here are the classes:

https://github.com/LogicTechCorp/NetherEx/tree/091d188907c5bf9fe5889b7fc825d81a294432ee/src/main/java/nex/trade

 

Am I doing it correctly? Also, now how do I fill out the Deserializer classes?

18 hours ago, diesieben07 said:

You don't need to write the deserializer manually. If you match your class structure with your JSON structure, Gson can do it for you. Check out the Gson User Guide.

Are the classes set up correctly? And, how would I best go about writing the TradeOffer class?

https://github.com/LogicTechCorp/NetherEx/tree/8de4416e8a453096431417ca4f987b8ee1093c1b/src/main/java/nex/trade

On 4/14/2017 at 2:13 AM, diesieben07 said:

They look alright.

The TradeOffer class has to contain the fields that are present in the offer section of your JSON. You will have to write a custom deserializer for ItemStack.

 

And again, read the user guide. It answers all your questions.

I have it working now. Do you have any suggestions on how I can improve it?

https://github.com/LogicTechCorp/NetherEx/blob/715c79aec5b060b52800e8fb9f0cc6f027fcc5e4/src/main/java/nex/trade/TradeListManager.java