public Select_Panel(Handle:panel, MenuAction:action, client, option)   
{   
   if (action == MenuAction_Select)   
   {
   if([client] == true) [client] = false;
   {
   else [client] = true;
   }
    SetVariantString("WaterSurfaceExplosion");
    AcceptEntityInput( client, "DispatchEffect");   
   }   
}

new bool:WATER_SPLASH_ENABLED[MAXPLAYERS+1];

public OnPluginStart()      
{      
    RegConsoleCmd("splash", splash);      
       
    HookEvent("player_spawn", OnPlayerSpawn);
}      

public Action:OnPlayerSpawn(Handle:event, const String:name[], bool:dontBroadcast)
{
    new client  = GetClientOfUserId(GetEventInt(event, "userid"));
       
    WATER_SPLASH_ENABLED[client]=true;
}

public Action:splash(client, args)      
{      
    if (client > 0 && args < 1){OpenMenu(client);}
    return Plugin_Handled;      
}    

OpenMenu(client)
{
    decl String:item[100];

    new Handle:menu=CreateMenu(SPLASHMenuHandle);

    SetMenuTitle(menu, "SPLASH MENU");

    if(WATER_SPLASH_ENABLED[client]==true)
    {
     Format(item, sizeof(item), "ЛЯПНУТЬ");
     AddMenuItem(menu, "", item);
    }
    else
    {
     Format(item, sizeof(item), "НЕ ЛЯПНУТЬ");
     AddMenuItem(menu, "", item,ITEMDRAW_DISABLED);
    }

    DisplayMenu(menu,client,MENU_TIME_FOREVER);
}

public SPLASHMenuHandle(Handle:menu,MenuAction:action,client,slot)
{
    if(action==MenuAction_Select)
    {     
     if (slot == 1)
     {
      SetVariantString("WaterSurfaceExplosion");    
      AcceptEntityInput( client, "DispatchEffect");
         
      WATER_SPLASH_ENABLED[client]=false;
     }    
    }
}