Goggles render correctly when worn as a Curio

src/main/java/com/simibubi/create/compat/curios/Curios.java

@@ -1,31 +1,43 @@
 package com.simibubi.create.compat.curios;
 
+import java.util.concurrent.atomic.AtomicBoolean;
+
 import com.simibubi.create.AllItems;
 import com.simibubi.create.content.contraptions.goggles.GogglesItem;
 
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.fml.DistExecutor;
 import net.minecraftforge.fml.InterModComms;
+import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
 import net.minecraftforge.fml.event.lifecycle.InterModEnqueueEvent;
 import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
 import top.theillusivec4.curios.api.CuriosCapability;
 import top.theillusivec4.curios.api.SlotTypeMessage;
 import top.theillusivec4.curios.api.SlotTypePreset;
-
+import top.theillusivec4.curios.api.type.inventory.ICurioStacksHandler;
-import java.util.concurrent.atomic.AtomicBoolean;
 
 public class Curios {
 	public static void init() {
 		FMLJavaModLoadingContext.get().getModEventBus().addListener(Curios::onInterModEnqueue);
+		FMLJavaModLoadingContext.get().getModEventBus().addListener(Curios::onClientSetup);
 
 		GogglesItem.addIsWearingPredicate(player -> {
 			AtomicBoolean hasGoggles = new AtomicBoolean(false);
 			player.getCapability(CuriosCapability.INVENTORY).ifPresent(handler -> {
-				hasGoggles.set(handler.getCurios().get("head").getStacks().getStackInSlot(0).getItem() == AllItems.GOGGLES.get());
+				ICurioStacksHandler stacksHandler = handler.getCurios().get("head");
+				if(stacksHandler != null) hasGoggles.set(stacksHandler.getStacks().getStackInSlot(0).getItem() == AllItems.GOGGLES.get());
 			});
 			return hasGoggles.get();
 		});
+
+		DistExecutor.unsafeRunWhenOn(Dist.CLIENT, () -> () -> FMLJavaModLoadingContext.get().getModEventBus().addListener(CuriosRenderers::onLayerRegister));
 	}
 
 	private static void onInterModEnqueue(final InterModEnqueueEvent event) {
 		InterModComms.sendTo("curios", SlotTypeMessage.REGISTER_TYPE, () -> SlotTypePreset.HEAD.getMessageBuilder().build());
 	}
+
+	private static void onClientSetup(final FMLClientSetupEvent event) {
+		CuriosRenderers.register();
+	}
 }

src/main/java/com/simibubi/create/compat/curios/CuriosRenderers.java

@@ -0,0 +1,21 @@
+package com.simibubi.create.compat.curios;
+
+import com.simibubi.create.AllItems;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.model.geom.builders.LayerDefinition;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+import net.minecraftforge.client.event.EntityRenderersEvent;
+import top.theillusivec4.curios.api.client.CuriosRendererRegistry;
+
+@OnlyIn(Dist.CLIENT)
+public class CuriosRenderers {
+	public static void register() {
+		CuriosRendererRegistry.register(AllItems.GOGGLES.get(), () -> new GogglesCurioRenderer(Minecraft.getInstance().getEntityModels().bakeLayer(GogglesCurioRenderer.LAYER)));
+	}
+
+	public static void onLayerRegister(final EntityRenderersEvent.RegisterLayerDefinitions event) {
+		event.registerLayerDefinition(GogglesCurioRenderer.LAYER, () -> LayerDefinition.create(GogglesCurioRenderer.mesh(), 1, 1));
+	}
+}

src/main/java/com/simibubi/create/compat/curios/GogglesCurioRenderer.java

@@ -0,0 +1,67 @@
+package com.simibubi.create.compat.curios;
+
+import com.mojang.blaze3d.vertex.PoseStack;
+import com.mojang.math.Vector3f;
+import com.simibubi.create.Create;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.model.EntityModel;
+import net.minecraft.client.model.HumanoidModel;
+import net.minecraft.client.model.geom.ModelLayerLocation;
+import net.minecraft.client.model.geom.ModelPart;
+import net.minecraft.client.model.geom.PartPose;
+import net.minecraft.client.model.geom.builders.CubeDeformation;
+import net.minecraft.client.model.geom.builders.CubeListBuilder;
+import net.minecraft.client.model.geom.builders.MeshDefinition;
+import net.minecraft.client.renderer.MultiBufferSource;
+import net.minecraft.client.renderer.block.model.ItemTransforms;
+import net.minecraft.client.renderer.entity.RenderLayerParent;
+import net.minecraft.client.renderer.texture.OverlayTexture;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.entity.LivingEntity;
+import net.minecraft.world.item.ItemStack;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+import top.theillusivec4.curios.api.SlotContext;
+import top.theillusivec4.curios.api.client.ICurioRenderer;
+
+@OnlyIn(Dist.CLIENT)
+public class GogglesCurioRenderer implements ICurioRenderer {
+	public static final ModelLayerLocation LAYER = new ModelLayerLocation(new ResourceLocation(Create.ID, "goggles"), "goggles");
+
+	private final HumanoidModel<LivingEntity> model;
+
+	public GogglesCurioRenderer(ModelPart part) {
+		this.model = new HumanoidModel<>(part);
+	}
+
+	@Override
+	public <T extends LivingEntity, M extends EntityModel<T>> void render(ItemStack stack, SlotContext slotContext, PoseStack matrixStack, RenderLayerParent<T, M> renderLayerParent, MultiBufferSource renderTypeBuffer, int light, float limbSwing, float limbSwingAmount, float partialTicks, float ageInTicks, float netHeadYaw, float headPitch) {
+		// Prepare values for transformation
+		model.setupAnim(slotContext.entity(), limbSwing, limbSwingAmount, ageInTicks, netHeadYaw, headPitch);
+		model.prepareMobModel(slotContext.entity(), limbSwing, limbSwingAmount, partialTicks);
+		ICurioRenderer.followHeadRotations(slotContext.entity(), model.head);
+
+		// Translate and rotate with our head
+		matrixStack.pushPose();
+		matrixStack.translate(model.head.x / 16.0, model.head.y / 16.0, model.head.z / 16.0);
+		matrixStack.mulPose(Vector3f.YP.rotation(model.head.yRot));
+		matrixStack.mulPose(Vector3f.XP.rotation(model.head.xRot));
+
+		// Translate and scale to our head
+		matrixStack.translate(0, -0.25, 0);
+		matrixStack.mulPose(Vector3f.ZP.rotationDegrees(180.0f));
+		matrixStack.scale(0.625f, 0.625f, 0.625f);
+
+		// Render
+		Minecraft.getInstance().getItemRenderer().renderStatic(stack, ItemTransforms.TransformType.HEAD, light, OverlayTexture.NO_OVERLAY, matrixStack, renderTypeBuffer, 0);
+		matrixStack.popPose();
+	}
+
+	public static MeshDefinition mesh() {
+		CubeListBuilder builder = new CubeListBuilder();
+		MeshDefinition mesh = HumanoidModel.createMesh(CubeDeformation.NONE, 0);
+		mesh.getRoot().addOrReplaceChild("head", builder, PartPose.ZERO);
+		return mesh;
+	}
+}