Create npcspawner.js

examplemods/npcspawner.js

@@ -0,0 +1,34 @@
+(() => {
+    PluginAPI.dedicatedServer.appendCode(function () {
+        PluginAPI.addEventListener("processcommand", (event) => {
+            if (!ModAPI.reflect.getClassById("net.minecraft.entity.player.EntityPlayerMP").instanceOf(event.sender.getRef())) { return }
+
+            if (event.command.toLowerCase().startsWith("/spawnnpc")) {
+                const world = event.sender.getServerForPlayer();
+                const playerPos = event.sender.getPosition();
+
+                // Create a fake player entity
+                const FakePlayerClass = ModAPI.reflect.getClassById("com.mojang.authlib.GameProfile");
+                const fakeProfile = FakePlayerClass.constructors[2](
+                    java.util.UUID.randomUUID(), ModAPI.util.str("Steve")
+                );
+
+                const EntityPlayerMPClass = ModAPI.reflect.getClassById("net.minecraft.entity.player.EntityPlayerMP");
+                const fakePlayer = EntityPlayerMPClass.constructors[1](
+                    world.getMinecraftServer(), world.getRef(), fakeProfile, world.getPlayerInteractionManager()
+                );
+
+                // Set the player position
+                fakePlayer.setPosition(playerPos.$getX(), playerPos.$getY(), playerPos.$getZ());
+
+                // Add the fake player to the world
+                world.addEntityToWorld(fakePlayer.getEntityId(), fakePlayer);
+
+                // Send a confirmation message to the player
+                event.sender.addChatMessage(ModAPI.reflect.getClassById("net.minecraft.util.ChatComponentText").constructors[0](ModAPI.util.str("Fake Steve has been spawned!")));
+
+                event.preventDefault = true;
+            }
+        });
+    });
+})();