ModelLoader.java 文件源码

public WeightedRandomModel(ResourceLocation parent, VariantList variants) throws Exception
{
    this.variants = variants.getVariantList();
    ImmutableList.Builder<Pair<IModel, IModelState>> builder = ImmutableList.builder();
    for (Variant v : this.variants)
    {
        ResourceLocation loc = v.getModelLocation();
        locations.add(loc);

        /*
         * Vanilla eats this, which makes it only show variants that have models.
         * But that doesn't help debugging, so throw the exception
         */
        IModel model;
        if(loc.equals(MODEL_MISSING))
        {
            // explicit missing location, happens if blockstate has "model"=null
            model = ModelLoaderRegistry.getMissingModel();
        }
        else
        {
            model = ModelLoaderRegistry.getModel(loc);
        }

        // FIXME: is this the place? messes up dependency and texture resolution
        model = v.process(model);
        for(ResourceLocation location : model.getDependencies())
        {
            ModelLoaderRegistry.getModelOrMissing(location);
        }
        //FMLLog.getLogger().error("Exception resolving indirect dependencies for model" + loc, e);
        textures.addAll(model.getTextures()); // Kick this, just in case.

        models.add(model);
        builder.add(Pair.of(model, v.getState()));
    }

    if (models.size() == 0) //If all variants are missing, add one with the missing model and default rotation.
    {
        // FIXME: log this?
        IModel missing = ModelLoaderRegistry.getMissingModel();
        models.add(missing);
        builder.add(Pair.<IModel, IModelState>of(missing, TRSRTransformation.identity()));
    }

    defaultState = new MultiModelState(builder.build());
}