Method setItemData

src/main/java/net/minecraft/world/World.java:3604–3607

Assigns the given String id to the given MapDataBase using the MapStorage, removing any existing ones of the same id.

(String dataID, WorldSavedData worldSavedDataIn)

     * id.
     */
    public void setItemData(String dataID, WorldSavedData worldSavedDataIn)
    {
        this.mapStorage.setData(dataID, worldSavedDataIn);
    }

    /**
     * Loads an existing MapDataBase corresponding to the given String id from disk using the MapStorage, instantiating