Fix #8 rotate command (#15)

Author: aksiome

src/main/java/io/github/misode/packtest/dummy/Dummy.java

@@ -9,6 +9,7 @@
 import net.minecraft.network.protocol.game.ClientboundEntityPositionSyncPacket;
 import net.minecraft.network.protocol.game.ClientboundRotateHeadPacket;
 import net.minecraft.network.protocol.game.ServerboundClientCommandPacket;
+import net.minecraft.network.protocol.game.ServerboundMovePlayerPacket;
 import net.minecraft.resources.ResourceKey;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.TickTask;
@@ -97,6 +98,15 @@ public void respawn() {
         server.getPlayerList().respawn(this, false, Entity.RemovalReason.KILLED);
     }
 
+    @Override
+    public void forceSetRotation(float f, float g) {
+        this.setYRot(f);
+        this.setXRot(g);
+        this.setOldRot();
+
+        this.connection.send(new ServerboundMovePlayerPacket.Rot(f, g, false, false));
+    }
+
     @SuppressWarnings("resource")
     @Override
     public void tick() {