Players stay in environment even when dead, damage flash and fall damage fixes

Don't set m_removed on dead players (dead players are indicated by hp == 0). Local
damage flash is shown whatever the cause was (even from Lua set_hp). PlayerCAO
damage flash matches duration of local damage flash. Fall damage is dealt much more consistently (this is done by disallowing jumping when speed.Y is very negative, up to now jumping could sometimes negate fall damage)

1 files changed, 41 insertions, 41 deletions

diff --git a/src/server.cpp b/src/server.cpp
index a0c8a0092..bf90b2aa7 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -1270,7 +1270,8 @@ void Server::AsyncRunStep()
 			/*
 				Handle player HPs (die if hp=0)
 			*/
-			HandlePlayerHP(player, 0);
+			if(player->hp == 0 && player->m_hp_not_sent)
+				DiePlayer(player);
 
 			/*
 				Send player inventories and HPs if necessary
@@ -1284,9 +1285,9 @@ void Server::AsyncRunStep()
 			}
 
 			/*
-				Add to environment if is not in respawn screen
+				Add to environment
 			*/
-			if(!player->m_is_in_environment && !player->m_respawn_active){
+			if(!player->m_is_in_environment){
 				player->m_removed = false;
 				player->setId(0);
 				m_env->addActiveObject(player);
@@ -2129,6 +2130,10 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 		// Send HP
 		SendPlayerHP(player);
 		
+		// Show death screen if necessary
+		if(player->hp == 0)
+			SendDeathscreen(m_con, player->peer_id, false, v3f(0,0,0));
+
 		// Send time of day
 		{
 			SharedBuffer<u8> data = makePacket_TOCLIENT_TIME_OF_DAY(
@@ -2160,11 +2165,6 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 		}
 
 		/*
-			Check HP, respawn if necessary
-		*/
-		HandlePlayerHP(player, 0);
-
-		/*
 			Print out action
 		*/
 		{
@@ -2662,16 +2662,25 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 		std::istringstream is(datastring, std::ios_base::binary);
 		u8 damage = readU8(is);
 
+		ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>(player);
+
 		if(g_settings->getBool("enable_damage"))
 		{
 			actionstream<<player->getName()<<" damaged by "
 					<<(int)damage<<" hp at "<<PP(player->getPosition()/BS)
 					<<std::endl;
-				
-			HandlePlayerHP(player, damage);
+
+			srp->setHP(srp->getHP() - damage);
+
+			if(srp->getHP() == 0 && srp->m_hp_not_sent)
+				DiePlayer(srp);
+
+			if(srp->m_hp_not_sent)
+				SendPlayerHP(player);
 		}
 		else
 		{
+			// Force send (to correct the client's predicted HP)
 			SendPlayerHP(player);
 		}
 	}
@@ -2751,8 +2760,6 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 		if(player->hp != 0)
 			return;
 		
-		srp->m_respawn_active = false;
-
 		RespawnPlayer(player);
 		
 		actionstream<<player->getName()<<" respawns at "
@@ -2811,6 +2818,13 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 
 		infostream<<"TOSERVER_INTERACT: action="<<(int)action<<", item="<<item_i<<", pointed="<<pointed.dump()<<std::endl;
 
+		if(player->hp == 0)
+		{
+			infostream<<"TOSERVER_INTERACT: "<<srp->getName()
+				<<" tried to interact, but is dead!"<<std::endl;
+			return;
+		}
+
 		v3f player_pos = srp->m_last_good_position;
 
 		// Update wielded item
@@ -3968,26 +3982,14 @@ void Server::SendTexturesRequested(u16 peer_id,core::list<TextureRequest> tosend
 	Something random
 */
 
-void Server::HandlePlayerHP(Player *player, s16 damage)
+void Server::DiePlayer(Player *player)
 {
 	ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>(player);
 
-	if(srp->m_respawn_active)
-		return;
-	
-	if(player->hp > damage)
-	{
-		if(damage != 0){
-			player->hp -= damage;
-			SendPlayerHP(player);
-		}
-		return;
-	}
-
-	infostream<<"Server::HandlePlayerHP(): Player "
+	infostream<<"Server::DiePlayer(): Player "
 			<<player->getName()<<" dies"<<std::endl;
 	
-	player->hp = 0;
+	srp->setHP(0);
 	
 	// Trigger scripted stuff
 	scriptapi_on_dieplayer(m_lua, srp);
@@ -3999,24 +4001,13 @@ void Server::HandlePlayerHP(Player *player, s16 damage)
 	}
 
 	SendPlayerHP(player);
-	
-	RemoteClient *client = getClient(player->peer_id);
-	if(client->net_proto_version >= 3)
-	{
-		SendDeathscreen(m_con, player->peer_id, false, v3f(0,0,0));
-		srp->m_removed = true;
-		srp->m_respawn_active = true;
-	}
-	else
-	{
-		RespawnPlayer(player);
-	}
+	SendDeathscreen(m_con, player->peer_id, false, v3f(0,0,0));
 }
 
 void Server::RespawnPlayer(Player *player)
 {
-	player->hp = 20;
 	ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>(player);
+	srp->setHP(20);
 	bool repositioned = scriptapi_on_respawnplayer(m_lua, srp);
 	if(!repositioned){
 		v3f pos = findSpawnPos(m_env->getServerMap());
@@ -4268,6 +4259,14 @@ ServerRemotePlayer *Server::emergePlayer(const char *name, u16 peer_id)
 		// Got one.
 		player->peer_id = peer_id;
 		
+		// Re-add player to environment
+		if(player->m_removed)
+		{
+			player->m_removed = false;
+			player->setId(0);
+			m_env->addActiveObject(player);
+		}
+
 		// Reset inventory to creative if in creative mode
 		if(g_settings->getBool("creative_mode"))
 		{
@@ -4305,12 +4304,13 @@ ServerRemotePlayer *Server::emergePlayer(const char *name, u16 peer_id)
 		v3f pos = findSpawnPos(m_env->getServerMap());
 
 		player = new ServerRemotePlayer(m_env, pos, peer_id, name);
+		ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>(player);
 
 		/* Add player to environment */
 		m_env->addPlayer(player);
+		m_env->addActiveObject(srp);
 
 		/* Run scripts */
-		ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>(player);
 		scriptapi_on_newplayer(m_lua, srp);
 
 		/* Add stuff to inventory */