core: rebuild infect function

fix: a disease cannot be add in multiple time

lua/autorun/server/menus/sv_infect_menu.lua

@@ -1,6 +1,5 @@
 settings = include("../sv_settings.lua")
 config = include("../sv_config.lua")
-infect = include("../sv_infect.lua")
 
 util.AddNetworkString("get_diseases_name")
 util.AddNetworkString("get_players_data")
@@ -43,8 +42,19 @@ net.Receive("infect", function (len, ply)
     local data = net.ReadTable()
     for _, infected in ipairs(data.infecteds)
     do
-        print("1")
-        infect(infected, data.diseases)
+        for _, disease_name in ipairs(data.diseases)
+        do
+            print(disease_name)
+            disease = settings.getDiseaseByName(disease_name)
+            if (disease == nil)
+            then
+                print(ply:GetName() .. " try to add undifined disease")
+            else
+                print()
+                disease:infect(infected, 1)
+            end
+            print("bozogang")
+        end
     end
 end)