Consistent HP and damage types (#8167)

Remove deprecated HUDs and chat message handling.
Remove unused m_damage variable (compat break).
HP: s32 for setter/calculations, u16 for getter.

src/client/client.cpp

@@ -437,7 +437,7 @@ void Client::step(float dtime)
 		ClientEnvEvent envEvent = m_env.getClientEnvEvent();
 
 		if (envEvent.type == CEE_PLAYER_DAMAGE) {
-			u8 damage = envEvent.player_damage.amount;
+			u16 damage = envEvent.player_damage.amount;
 
 			if (envEvent.player_damage.send_to_server)
 				sendDamage(damage);
@@ -1213,9 +1213,9 @@ void Client::sendChangePassword(const std::string &oldpassword,
 }
 
 
-void Client::sendDamage(u8 damage)
+void Client::sendDamage(u16 damage)
 {
-	NetworkPacket pkt(TOSERVER_DAMAGE, sizeof(u8));
+	NetworkPacket pkt(TOSERVER_DAMAGE, sizeof(u16));
 	pkt << damage;
 	Send(&pkt);
 }
@@ -1515,17 +1515,6 @@ void Client::typeChatMessage(const std::wstring &message)
 
 	// Send to others
 	sendChatMessage(message);
-
-	// Show locally
-	if (message[0] != L'/') {
-		// compatibility code
-		if (m_proto_ver < 29) {
-			LocalPlayer *player = m_env.getLocalPlayer();
-			assert(player);
-			std::wstring name = narrow_to_wide(player->getName());
-			pushToChatQueue(new ChatMessage(CHATMESSAGE_TYPE_NORMAL, message, name));
-		}
-	}
 }
 
 void Client::addUpdateMeshTask(v3s16 p, bool ack_to_server, bool urgent)

src/client/client.h

@@ -243,7 +243,7 @@ public:
 	void clearOutChatQueue();
 	void sendChangePassword(const std::string &oldpassword,
 		const std::string &newpassword);
-	void sendDamage(u8 damage);
+	void sendDamage(u16 damage);
 	void sendRespawn();
 	void sendReady();
 
@@ -342,7 +342,7 @@ public:
 	bool mediaReceived()
 	{ return !m_media_downloader; }
 
-	u8 getProtoVersion()
+	u16 getProtoVersion()
 	{ return m_proto_ver; }
 
 	bool connectedToServer();
@@ -504,7 +504,7 @@ private:
 	// and aren't accurate. We simply just don't know, because
 	// the server didn't send the version back then.
 	// If 0, server init hasn't been received yet.
-	u8 m_proto_ver = 0;
+	u16 m_proto_ver = 0;
 
 	u16 m_playeritem = 0;
 	bool m_inventory_updated = false;

src/client/clientenvironment.cpp

@@ -228,7 +228,7 @@ void ClientEnvironment::step(float dtime)
 		float speed = pre_factor * speed_diff.getLength();
 		if (speed > tolerance && !player_immortal) {
 			f32 damage_f = (speed - tolerance) / BS * post_factor;
-			u8 damage = (u8)MYMIN(damage_f + 0.5, 255);
+			u16 damage = (u16)MYMIN(damage_f + 0.5, U16_MAX);
 			if (damage != 0) {
 				damageLocalPlayer(damage, true);
 				m_client->getEventManager()->put(
@@ -419,7 +419,7 @@ void ClientEnvironment::processActiveObjectMessage(u16 id, const std::string &da
 	Callbacks for activeobjects
 */
 
-void ClientEnvironment::damageLocalPlayer(u8 damage, bool handle_hp)
+void ClientEnvironment::damageLocalPlayer(u16 damage, bool handle_hp)
 {
 	LocalPlayer *lplayer = getLocalPlayer();
 	assert(lplayer);

src/client/clientenvironment.h

@@ -53,7 +53,7 @@ struct ClientEnvEvent
 		//struct{
 		//} none;
 		struct{
-			u8 amount;
+			u16 amount;
 			bool send_to_server;
 		} player_damage;
 	};
@@ -115,7 +115,7 @@ public:
 		Callbacks for activeobjects
 	*/
 
-	void damageLocalPlayer(u8 damage, bool handle_hp=true);
+	void damageLocalPlayer(u16 damage, bool handle_hp=true);
 
 	/*
 		Client likes to call these

src/client/content_cao.cpp

@@ -371,7 +371,7 @@ void GenericCAO::processInitData(const std::string &data)
 	m_id = readU16(is);
 	m_position = readV3F32(is);
 	m_rotation = readV3F32(is);
-	m_hp = readS16(is);
+	m_hp = readU16(is);
 	const u8 num_messages = readU8(is);
 
 	for (int i = 0; i < num_messages; i++) {
@@ -1508,11 +1508,10 @@ void GenericCAO::processMessage(const std::string &data)
 
 		updateAttachments();
 	} else if (cmd == GENERIC_CMD_PUNCHED) {
-		/*s16 damage =*/ readS16(is);
+		u16 result_hp = readU16(is);
-		s16 result_hp = readS16(is);
 
 		// Use this instead of the send damage to not interfere with prediction
-		s16 damage = m_hp - result_hp;
+		s32 damage = (s32)m_hp - (s32)result_hp;
 
 		m_hp = result_hp;
 

src/client/content_cao.h

@@ -88,7 +88,7 @@ private:
 	v3f m_velocity;
 	v3f m_acceleration;
 	v3f m_rotation;
-	s16 m_hp = 1;
+	u16 m_hp = 1;
 	SmoothTranslator<v3f> pos_translator;
 	SmoothTranslatorWrappedv3f rot_translator;
 	// Spritesheet/animation stuff

src/client/hud.cpp

@@ -475,25 +475,6 @@ void Hud::drawHotbar(u16 playeritem) {
 				hotbar_itemcount / 2, mainlist, playeritem + 1, 0);
 		}
 	}
-
-	//////////////////////////// compatibility code to be removed //////////////
-	// this is ugly as hell but there's no other way to keep compatibility to
-	// old servers
-	if ((player->hud_flags & HUD_FLAG_HEALTHBAR_VISIBLE)) {
-		drawStatbar(v2s32(floor(0.5 * (float)m_screensize.X + 0.5),
-			floor(1 * (float) m_screensize.Y + 0.5)),
-			HUD_CORNER_UPPER, 0, "heart.png",
-			player->hp, v2s32((-10*24)-25,-(48+24+10)), v2s32(24,24));
-	}
-
-	if ((player->hud_flags & HUD_FLAG_BREATHBAR_VISIBLE) &&
-			(player->getBreath() < 11)) {
-		drawStatbar(v2s32(floor(0.5 * (float)m_screensize.X + 0.5),
-			floor(1 * (float) m_screensize.Y + 0.5)),
-			HUD_CORNER_UPPER, 0, "bubble.png",
-			player->getBreath(), v2s32(25,-(48+24+10)), v2s32(24,24));
-	}
-	////////////////////////////////////////////////////////////////////////////
 }
 
 

src/content_sao.cpp

@@ -347,7 +347,7 @@ ServerActiveObject* LuaEntitySAO::create(ServerEnvironment *env, v3f pos,
 {
 	std::string name;
 	std::string state;
-	s16 hp = 1;
+	u16 hp = 1;
 	v3f velocity;
 	v3f rotation;
 
@@ -364,7 +364,7 @@ ServerActiveObject* LuaEntitySAO::create(ServerEnvironment *env, v3f pos,
 		if (version < 1)
 			break;
 
-		hp = readS16(is);
+		hp = readU16(is);
 		velocity = readV3F1000(is);
 		// yaw must be yaw to be backwards-compatible
 		rotation.Y = readF1000(is);
@@ -548,10 +548,10 @@ std::string LuaEntitySAO::getClientInitializationData(u16 protocol_version)
 	writeU8(os, 1); // version
 	os << serializeString(""); // name
 	writeU8(os, 0); // is_player
-	writeS16(os, getId()); //id
+	writeU16(os, getId()); //id
 	writeV3F32(os, m_base_position);
 	writeV3F32(os, m_rotation);
-	writeS16(os, m_hp);
+	writeU16(os, m_hp);
 
 	std::ostringstream msg_os(std::ios::binary);
 	msg_os << serializeLongString(getPropertyPacket()); // message 1
@@ -601,7 +601,7 @@ void LuaEntitySAO::getStaticData(std::string *result) const
 	} else {
 		os<<serializeLongString(m_init_state);
 	}
-	writeS16(os, m_hp);
+	writeU16(os, m_hp);
 	writeV3F1000(os, m_velocity);
 	// yaw
 	writeF1000(os, m_rotation.Y);
@@ -646,7 +646,7 @@ int LuaEntitySAO::punch(v3f dir,
 
 	if (!damage_handled) {
 		if (result.did_punch) {
-			setHP(getHP() - result.damage,
+			setHP((s32)getHP() - result.damage,
 				PlayerHPChangeReason(PlayerHPChangeReason::SET_HP));
 
 			if (result.damage > 0) {
@@ -657,7 +657,7 @@ int LuaEntitySAO::punch(v3f dir,
 						<< " hp, health now " << getHP() << " hp" << std::endl;
 			}
 
-			std::string str = gob_cmd_punched(result.damage, getHP());
+			std::string str = gob_cmd_punched(getHP());
 			// create message and add to list
 			ActiveObjectMessage aom(getId(), true, str);
 			m_messages_out.push(aom);
@@ -715,14 +715,12 @@ std::string LuaEntitySAO::getDescription()
 	return os.str();
 }
 
-void LuaEntitySAO::setHP(s16 hp, const PlayerHPChangeReason &reason)
+void LuaEntitySAO::setHP(s32 hp, const PlayerHPChangeReason &reason)
 {
-	if (hp < 0)
+	m_hp = rangelim(hp, 0, U16_MAX);
-		hp = 0;
-	m_hp = hp;
 }
 
-s16 LuaEntitySAO::getHP() const
+u16 LuaEntitySAO::getHP() const
 {
 	return m_hp;
 }
@@ -949,7 +947,7 @@ std::string PlayerSAO::getClientInitializationData(u16 protocol_version)
 	writeS16(os, getId()); // id
 	writeV3F32(os, m_base_position);
 	writeV3F32(os, m_rotation);
-	writeS16(os, getHP());
+	writeU16(os, getHP());
 
 	std::ostringstream msg_os(std::ios::binary);
 	msg_os << serializeLongString(getPropertyPacket()); // message 1
@@ -1044,7 +1042,7 @@ void PlayerSAO::step(float dtime, bool send_recommended)
 			m_env->getGameDef()->ndef()->get(ntop).damage_per_second);
 
 		if (damage_per_second != 0 && m_hp > 0) {
-			s16 newhp = ((s32) damage_per_second > m_hp ? 0 : m_hp - damage_per_second);
+			s32 newhp = (s32)m_hp - (s32)damage_per_second;
 			PlayerHPChangeReason reason(PlayerHPChangeReason::NODE_DAMAGE);
 			setHP(newhp, reason);
 			m_env->getGameDef()->SendPlayerHPOrDie(this, reason);
@@ -1272,7 +1270,7 @@ int PlayerSAO::punch(v3f dir,
 	// No effect if PvP disabled
 	if (!g_settings->getBool("enable_pvp")) {
 		if (puncher->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
-			std::string str = gob_cmd_punched(0, getHP());
+			std::string str = gob_cmd_punched(getHP());
 			// create message and add to list
 			ActiveObjectMessage aom(getId(), true, str);
 			m_messages_out.push(aom);
@@ -1295,11 +1293,11 @@ int PlayerSAO::punch(v3f dir,
 				hitparams.hp);
 
 	if (!damage_handled) {
-		setHP(getHP() - hitparams.hp,
+		setHP((s32)getHP() - (s32)hitparams.hp,
 				PlayerHPChangeReason(PlayerHPChangeReason::PLAYER_PUNCH, puncher));
 	} else { // override client prediction
 		if (puncher->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
-			std::string str = gob_cmd_punched(0, getHP());
+			std::string str = gob_cmd_punched(getHP());
 			// create message and add to list
 			ActiveObjectMessage aom(getId(), true, str);
 			m_messages_out.push(aom);
@@ -1319,36 +1317,21 @@ int PlayerSAO::punch(v3f dir,
 	return hitparams.wear;
 }
 
-s16 PlayerSAO::readDamage()
+void PlayerSAO::setHP(s32 hp, const PlayerHPChangeReason &reason)
 {
-	s16 damage = m_damage;
+	s32 oldhp = m_hp;
-	m_damage = 0;
-	return damage;
-}
 
-void PlayerSAO::setHP(s16 hp, const PlayerHPChangeReason &reason)
+	s32 hp_change = m_env->getScriptIface()->on_player_hpchange(this, hp - oldhp, reason);
-{
-	s16 oldhp = m_hp;
-
-	s16 hp_change = m_env->getScriptIface()->on_player_hpchange(this, hp - oldhp, reason);
 	if (hp_change == 0)
 		return;
-	hp = oldhp + hp_change;
 
-	if (hp < 0)
+	hp = rangelim(oldhp + hp_change, 0, m_prop.hp_max);
-		hp = 0;
-	else if (hp > m_prop.hp_max)
-		hp = m_prop.hp_max;
 
-	if (hp < oldhp && !g_settings->getBool("enable_damage")) {
+	if (hp < oldhp && !g_settings->getBool("enable_damage"))
 		return;
-	}
 
 	m_hp = hp;
 
-	if (oldhp > hp)
-		m_damage += (oldhp - hp);
-
 	// Update properties on death
 	if ((hp == 0) != (oldhp == 0))
 		m_properties_sent = false;

src/content_sao.h

@@ -39,7 +39,7 @@ public:
 	// Deprecated
 	f32 getRadYawDep() const { return (m_rotation.Y + 90.) * core::DEGTORAD; }
 
-	s16 getHP() const { return m_hp; }
+	u16 getHP() const { return m_hp; }
 	// Use a function, if isDead can be defined by other conditions
 	bool isDead() const { return m_hp == 0; }
 
@@ -64,7 +64,7 @@ public:
 	ObjectProperties* accessObjectProperties();
 	void notifyObjectPropertiesModified();
 protected:
-	s16 m_hp = -1;
+	u16 m_hp = 1;
 
 	v3f m_rotation;
 
@@ -127,8 +127,8 @@ public:
 	void moveTo(v3f pos, bool continuous);
 	float getMinimumSavedMovement();
 	std::string getDescription();
-	void setHP(s16 hp, const PlayerHPChangeReason &reason);
+	void setHP(s32 hp, const PlayerHPChangeReason &reason);
-	s16 getHP() const;
+	u16 getHP() const;
 	/* LuaEntitySAO-specific */
 	void setVelocity(v3f velocity);
 	void addVelocity(v3f velocity)
@@ -258,8 +258,8 @@ public:
 		ServerActiveObject *puncher,
 		float time_from_last_punch);
 	void rightClick(ServerActiveObject *clicker) {}
-	void setHP(s16 hp, const PlayerHPChangeReason &reason);
+	void setHP(s32 hp, const PlayerHPChangeReason &reason);
-	void setHPRaw(s16 hp) { m_hp = hp; }
+	void setHPRaw(u16 hp) { m_hp = hp; }
 	s16 readDamage();
 	u16 getBreath() const { return m_breath; }
 	void setBreath(const u16 breath, bool send = true);
@@ -351,7 +351,6 @@ private:
 	RemotePlayer *m_player = nullptr;
 	session_t m_peer_id = 0;
 	Inventory *m_inventory = nullptr;
-	s16 m_damage = 0;
 
 	// Cheat prevention
 	LagPool m_dig_pool;

src/database/database-files.cpp

@@ -44,11 +44,11 @@ void PlayerDatabaseFiles::serialize(std::ostringstream &os, RemotePlayer *player
 	args.set("name", player->getName());
 
 	sanity_check(player->getPlayerSAO());
-	args.setS32("hp", player->getPlayerSAO()->getHP());
+	args.setU16("hp", player->getPlayerSAO()->getHP());
 	args.setV3F("position", player->getPlayerSAO()->getBasePosition());
 	args.setFloat("pitch", player->getPlayerSAO()->getLookPitch());
 	args.setFloat("yaw", player->getPlayerSAO()->getRotation().Y);
-	args.setS32("breath", player->getPlayerSAO()->getBreath());
+	args.setU16("breath", player->getPlayerSAO()->getBreath());
 
 	std::string extended_attrs;
 	player->serializeExtraAttributes(extended_attrs);

src/database/database-postgresql.cpp

@@ -553,7 +553,7 @@ bool PlayerDatabasePostgreSQL::loadPlayer(RemotePlayer *player, PlayerSAO *sao)
 		pg_to_float(results, 0, 3),
 		pg_to_float(results, 0, 4))
 	);
-	sao->setHPRaw((s16) pg_to_int(results, 0, 5));
+	sao->setHPRaw((u16) pg_to_int(results, 0, 5));
 	sao->setBreath((u16) pg_to_int(results, 0, 6), false);
 
 	PQclear(results);

src/database/database-sqlite3.cpp

@@ -546,7 +546,7 @@ bool PlayerDatabaseSQLite3::loadPlayer(RemotePlayer *player, PlayerSAO *sao)
 	sao->setLookPitch(sqlite_to_float(m_stmt_player_load, 0));
 	sao->setPlayerYaw(sqlite_to_float(m_stmt_player_load, 1));
 	sao->setBasePosition(sqlite_to_v3f(m_stmt_player_load, 2));
-	sao->setHPRaw((s16) MYMIN(sqlite_to_int(m_stmt_player_load, 5), S16_MAX));
+	sao->setHPRaw((u16) MYMIN(sqlite_to_int(m_stmt_player_load, 5), U16_MAX));
 	sao->setBreath((u16) MYMIN(sqlite_to_int(m_stmt_player_load, 6), U16_MAX), false);
 	sqlite3_reset(m_stmt_player_load);
 

src/genericobject.cpp

@@ -92,15 +92,13 @@ std::string gob_cmd_set_sprite(
 	return os.str();
 }
 
-std::string gob_cmd_punched(s16 damage, s16 result_hp)
+std::string gob_cmd_punched(u16 result_hp)
 {
 	std::ostringstream os(std::ios::binary);
 	// command
 	writeU8(os, GENERIC_CMD_PUNCHED);
-	// damage
-	writeS16(os, damage);
 	// result_hp
-	writeS16(os, result_hp);
+	writeU16(os, result_hp);
 	return os.str();
 }
 

src/genericobject.h

@@ -63,7 +63,7 @@ std::string gob_cmd_set_sprite(
 	bool select_horiz_by_yawpitch
 );
 
-std::string gob_cmd_punched(s16 damage, s16 result_hp);
+std::string gob_cmd_punched(u16 result_hp);
 
 std::string gob_cmd_update_armor_groups(const ItemGroupList &armor_groups);
 

src/network/serverpackethandler.cpp

@@ -776,7 +776,7 @@ void Server::handleCommand_ChatMessage(NetworkPacket* pkt)
 
 void Server::handleCommand_Damage(NetworkPacket* pkt)
 {
-	u8 damage;
+	u16 damage;
 
 	*pkt >> damage;
 
@@ -812,7 +812,7 @@ void Server::handleCommand_Damage(NetworkPacket* pkt)
 				<< std::endl;
 
 		PlayerHPChangeReason reason(PlayerHPChangeReason::FALL);
-		playersao->setHP(playersao->getHP() - damage, reason);
+		playersao->setHP((s32)playersao->getHP() - (s32)damage, reason);
 		SendPlayerHPOrDie(playersao, reason);
 	}
 }
@@ -1169,8 +1169,8 @@ void Server::handleCommand_Interact(NetworkPacket* pkt)
 			float time_from_last_punch =
 				playersao->resetTimeFromLastPunch();
 
-			s16 src_original_hp = pointed_object->getHP();
+			u16 src_original_hp = pointed_object->getHP();
-			s16 dst_origin_hp = playersao->getHP();
+			u16 dst_origin_hp = playersao->getHP();
 
 			pointed_object->punch(dir, &toolcap, playersao,
 					time_from_last_punch);

src/object_properties.cpp

@@ -75,7 +75,7 @@ std::string ObjectProperties::dump()
 void ObjectProperties::serialize(std::ostream &os) const
 {
 	writeU8(os, 4); // PROTOCOL_VERSION >= 37
-	writeS16(os, hp_max);
+	writeU16(os, hp_max);
 	writeU8(os, physical);
 	writeF32(os, weight);
 	writeV3F32(os, collisionbox.MinEdge);
@@ -126,7 +126,7 @@ void ObjectProperties::deSerialize(std::istream &is)
 	if (version != 4)
 		throw SerializationError("unsupported ObjectProperties version");
 
-	hp_max = readS16(is);
+	hp_max = readU16(is);
 	physical = readU8(is);
 	weight = readF32(is);
 	collisionbox.MinEdge = readV3F32(is);

src/object_properties.h

@@ -27,7 +27,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 struct ObjectProperties
 {
-	s16 hp_max = 1;
+	u16 hp_max = 1;
 	u16 breath_max = 0;
 	bool physical = false;
 	bool collideWithObjects = true;

src/remoteplayer.cpp

@@ -98,7 +98,7 @@ void RemotePlayer::deSerialize(std::istream &is, const std::string &playername,
 
 	if (sao) {
 		try {
-			sao->setHPRaw(args.getS32("hp"));
+			sao->setHPRaw(args.getU16("hp"));
 		} catch(SettingNotFoundException &e) {
 			sao->setHPRaw(PLAYER_MAX_HP_DEFAULT);
 		}
@@ -115,7 +115,7 @@ void RemotePlayer::deSerialize(std::istream &is, const std::string &playername,
 		} catch (SettingNotFoundException &e) {}
 
 		try {
-			sao->setBreath(args.getS32("breath"), false);
+			sao->setBreath(args.getU16("breath"), false);
 		} catch (SettingNotFoundException &e) {}
 
 		try {
@@ -168,11 +168,11 @@ void RemotePlayer::serialize(std::ostream &os)
 
 	// This should not happen
 	assert(m_sao);
-	args.setS32("hp", m_sao->getHP());
+	args.setU16("hp", m_sao->getHP());
 	args.setV3F("position", m_sao->getBasePosition());
 	args.setFloat("pitch", m_sao->getLookPitch());
 	args.setFloat("yaw", m_sao->getRotation().Y);
-	args.setS32("breath", m_sao->getBreath());
+	args.setU16("breath", m_sao->getBreath());
 
 	std::string extended_attrs;
 	serializeExtraAttributes(extended_attrs);

src/script/common/c_content.cpp

@@ -191,7 +191,7 @@ void read_object_properties(lua_State *L, int index,
 
 	int hp_max = 0;
 	if (getintfield(L, -1, "hp_max", hp_max))
-		prop->hp_max = (s16)rangelim(hp_max, 0, S16_MAX);
+		prop->hp_max = (u16)rangelim(hp_max, 0, U16_MAX);
 
 	getintfield(L, -1, "breath_max", prop->breath_max);
 	getboolfield(L, -1, "physical", prop->physical);

src/script/cpp_api/s_entity.cpp

@@ -169,24 +169,6 @@ void ScriptApiEntity::luaentity_GetProperties(u16 id,
 	// Set default values that differ from ObjectProperties defaults
 	prop->hp_max = 10;
 
-	/* Read stuff */
-
-	prop->hp_max = getintfield_default(L, -1, "hp_max", 10);
-
-	getboolfield(L, -1, "physical", prop->physical);
-	getboolfield(L, -1, "collide_with_objects", prop->collideWithObjects);
-
-	getfloatfield(L, -1, "weight", prop->weight);
-
-	lua_getfield(L, -1, "collisionbox");
-	if (lua_istable(L, -1))
-		prop->collisionbox = read_aabb3f(L, -1, 1.0);
-	lua_pop(L, 1);
-
-	getstringfield(L, -1, "visual", prop->visual);
-
-	getstringfield(L, -1, "mesh", prop->mesh);
-
 	// Deprecated: read object properties directly
 	read_object_properties(L, -1, prop, getServer()->idef());
 

src/script/cpp_api/s_player.cpp

@@ -77,8 +77,8 @@ bool ScriptApiPlayer::on_punchplayer(ServerActiveObject *player,
 	return readParam<bool>(L, -1);
 }
 
-s16 ScriptApiPlayer::on_player_hpchange(ServerActiveObject *player,
+s32 ScriptApiPlayer::on_player_hpchange(ServerActiveObject *player,
-	s16 hp_change, const PlayerHPChangeReason &reason)
+	s32 hp_change, const PlayerHPChangeReason &reason)
 {
 	SCRIPTAPI_PRECHECKHEADER
 

src/script/cpp_api/s_player.h

@@ -46,7 +46,7 @@ public:
 	bool on_punchplayer(ServerActiveObject *player, ServerActiveObject *hitter,
 			float time_from_last_punch, const ToolCapabilities *toolcap,
 			v3f dir, s16 damage);
-	s16 on_player_hpchange(ServerActiveObject *player, s16 hp_change,
+	s32 on_player_hpchange(ServerActiveObject *player, s32 hp_change,
 			const PlayerHPChangeReason &reason);
 	void on_playerReceiveFields(ServerActiveObject *player,
 			const std::string &formname, const StringMap &fields);

src/script/lua_api/l_object.cpp

@@ -183,8 +183,8 @@ int ObjectRef::l_punch(lua_State *L)
 	ToolCapabilities toolcap = read_tool_capabilities(L, 4);
 	dir.normalize();
 
-	s16 src_original_hp = co->getHP();
+	u16 src_original_hp = co->getHP();
-	s16 dst_origin_hp = puncher->getHP();
+	u16 dst_origin_hp = puncher->getHP();
 
 	// Do it
 	co->punch(dir, &toolcap, puncher, time_from_last_punch);

src/server.cpp

@@ -1833,7 +1833,7 @@ void Server::SendPlayerHP(session_t peer_id)
 	m_script->player_event(playersao,"health_changed");
 
 	// Send to other clients
-	std::string str = gob_cmd_punched(playersao->readDamage(), playersao->getHP());
+	std::string str = gob_cmd_punched(playersao->getHP());
 	ActiveObjectMessage aom(playersao->getId(), true, str);
 	playersao->m_messages_out.push(aom);
 }

src/serverobject.h

@@ -140,9 +140,9 @@ public:
 	{ return 0; }
 	virtual void rightClick(ServerActiveObject *clicker)
 	{}
-	virtual void setHP(s16 hp, const PlayerHPChangeReason &reason)
+	virtual void setHP(s32 hp, const PlayerHPChangeReason &reason)
 	{}
-	virtual s16 getHP() const
+	virtual u16 getHP() const
 	{ return 0; }
 
 	virtual void setArmorGroups(const ItemGroupList &armor_groups)