reduce mob client initialisation data

src/content_cao.cpp

@@ -540,7 +540,7 @@ void MobCAO::initialize(const std::string &data)
 		// version
 		u8 version = readU8(is);
 		// check version
-		if (version != 0)
+		if (version < 0 || version > 1)
 			return;
 		// pos
 		m_position = readV3F1000(is);
@@ -550,13 +550,15 @@ void MobCAO::initialize(const std::string &data)
 		// yaw
 		m_yaw = readF1000(is);
 		pos_translator.init(m_position,m_yaw);
-		// client doesn't use these, but has to read past them
-		// speed
-		readV3F1000(is);
-		// age
-		readF1000(is);
-		// hp
-		readU8(is);
+		if (version == 0) {
+			// client doesn't use these, but has to read past them
+			// speed
+			readV3F1000(is);
+			// age
+			readF1000(is);
+			// hp
+			readU8(is);
+		}
 		// shooting
 		m_shooting = !!readU8(is);
 	}

src/content_sao.cpp

@@ -490,7 +490,18 @@ std::string MobSAO::getStaticData()
 }
 std::string MobSAO::getClientInitializationData()
 {
-	return getStaticData();
+	std::ostringstream os(std::ios::binary);
+	// version
+	writeU8(os, 1);
+	// pos
+	writeV3F1000(os, m_base_position);
+	// content
+	writeU16(os,m_content);
+	// yaw
+	writeF1000(os,m_yaw);
+	// shooting
+	writeU8(os,(u8)m_shooting);
+	return os.str();
 }
 void MobSAO::step(float dtime, bool send_recommended)
 {