Add entrypoint for other mods to use the API.

gradle.properties

@@ -9,7 +9,7 @@ yarn_mappings=1.20.2+build.1
 loader_version=0.14.22
 
 # Mod Properties
-mod_version=0.3.1
+mod_version=0.4.0
 maven_group=com.provismet
 archives_base_name=vmc-mc
 

src/main/java/com/provismet/vmcmc/ClientVMC.java

@@ -2,12 +2,14 @@
 
 import net.fabricmc.api.ClientModInitializer;
 import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientTickEvents;
+import net.fabricmc.loader.api.FabricLoader;
 import net.minecraft.util.Identifier;
 import net.minecraft.util.Pair;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import com.provismet.vmcmc.api.VmcApi;
 import com.provismet.vmcmc.config.Config;
 import com.provismet.vmcmc.vmc.CaptureRegistry;
 import com.provismet.vmcmc.vmc.PacketSender;
@@ -26,6 +28,16 @@ public void onInitializeClient () {
 		PacketSender.initPort(portInfo.getLeft(), portInfo.getRight());
 		CaptureRegistry.registerStandardEvents();
 
+		FabricLoader.getInstance().getEntrypointContainers(MODID, VmcApi.class).forEach(entrypoint -> {
+			String otherModId = entrypoint.getProvider().getMetadata().getId();
+			try {
+				entrypoint.getEntrypoint().onInitializeVMC();
+			}
+			catch (Throwable e) {
+				LOGGER.error("Error caused by mod " + otherModId + " during integration.", e);
+			}
+		});
+
 		ClientTickEvents.END_CLIENT_TICK.register(client -> {
 			CaptureRegistry.iterate(client);
 		});

src/main/java/com/provismet/vmcmc/api/VmcApi.java

@@ -0,0 +1,14 @@
+package com.provismet.vmcmc.api;
+
+/**
+ * Entrypoint for compatibility with VMC-MC.
+ * Mods that wish to add functionality to this mod should implement this interface and list the class as a "vmc-mc" entrypoint in fabric.mod.json.
+ */
+public interface VmcApi {
+    /**
+     * An initializer only run on the client-side.
+     * 
+     * Adding blendshapes, VMC related client-ticks, and hooks to blendstores should be handled within this method.
+     */
+    void onInitializeVMC ();
+}