#include <sourcemod>

new clientProtected[MAXPLAYERS+1];
new clientHP[MAXPLAYERS+1];

public OnPluginStart()
{
              HookEvent("player_spawn", Event_PlayerSpawn);
              HookEvent("player_hurt", Event_PlayerHurt);
}              

public Event_PlayerSpawn(Handle:event,const String:name[],bool:dontBroadcast)
{
              new client = GetClientOfUserId(GetEventInt(event, "userid"));

              if(IsClientConnected(client) && IsClientInGame(client))
              {
               clientHP[client] = GetClientHealth(client);
               PrintToChat(client, "Даем безсмертие!");
              }

              //Включает защиту на клиенте
              clientProtected[client] = 1;
              PrintToChat(client, "Вкл. защиту!");

              CreateTimer(3.0, timer_PlayerProtect, client);
}

//Если игрок получает урон во время защиты то его здоровье восстанавливается.
public Event_PlayerHurt(Handle:event,const String:name[],bool:dontBroadcast)
{
              new client = GetClientOfUserId(GetEventInt(event, "userid"));

              if (clientProtected[client] == 1)
               {
                SetEntData(client, FindDataMapOffs(client, "m_iMaxHealth"), clientHP[client], 4, true);
                SetEntData(client, FindDataMapOffs(client, "m_iHealth"), clientHP[client], 4, true);
                PrintToChat(client, "\x04Здоровье восстановлено!");
               }
}

//Защита игрока истекает.
public Action:timer_PlayerProtect(Handle:timer, any:client)
{
              //Отключает защиту у игрока
              clientProtected[client] = 0;
              PrintToChat(client, "Защита отк!");
}