working blacklist system and apply list command

addon.txt

@@ -16,8 +16,12 @@ If you want your enemies to be more human, this mod will change all hostile NPC
 - Change the behavior of custom models NPCs from combine to citizen
 - Allows hostile to attack with melee weapons
 
----
-
 I'll make VJ version if i can
 
+---
+
+models used:
+- Lenna https://steamcommunity.com/sharedfiles/filedetails/?id=3167885628
+- Tomoko https://steamcommunity.com/sharedfiles/filedetails/?id=3133369749
+
 Note: i couldn't find a mod similar to the one i made, so i don't know who made it first.

lua/autorun/hostile_npcs_tocitizen.lua

@@ -1,17 +1,90 @@
-local npcs = list.Get("NPC")
-local citizenEnemy = npcs["npc_citizen_rebel_enemy"]
+local function loadBlacklistFile()
+    local json = file.Read("npc_blacklist.json", "DATA")
+    if not json or json == "" then return {} end
+    local data = util.JSONToTable(json)
+    return istable(data) and data or {}
+end
 
-if citizenEnemy then
+local function resetHostile()
+    local npcs = list.Get("NPC")
     for class, npc in pairs(npcs) do
+        if npc["m_OldData"] then
+            local oldData = util.JSONToTable(npc["m_OldData"])
+            if oldData then
+                list.Set("NPC", class, oldData)
+            end
+        end
+    end
+end
+
+local function replaceHostile()
+    local blacklist = loadBlacklistFile()
+    local npcs = list.Get("NPC")
+    local citizenEnemy = npcs["npc_citizen_rebel_enemy"]
+
+    for class, npc in pairs(npcs) do
+        if table.HasValue(blacklist, class) then continue end
         if npc["Class"] == "npc_combine_s" and npc["Category"] ~= "#spawnmenu.category.combine" then
+            npc["m_OldData"] = npc["m_OldData"] or util.TableToJSON(npc, false)
             npc["Class"] = citizenEnemy["Class"]
             npc["KeyValues"] = {
                 Hostile = 1,
                 SquadName =	"overwatch",
                 citizentype = 4
             }
-        
             list.Set("NPC", class, npc)
         end
     end
 end
+
+CreateClientConVar("replacehostile_blacklist", "", false, false, "Blacklist NPC Classes")
+
+concommand.Add("replacehostile_reload", function()
+    resetHostile()
+    replaceHostile()
+    print("NPC Hostile Reloaded")
+end)
+
+hook.Add("PopulateToolMenu", "ReplaceHostileMenu", function()
+    local blacklist = loadBlacklistFile()
+    local defaultBlacklistStr = table.concat(blacklist, ",")
+
+    RunConsoleCommand("replacehostile_blacklist", defaultBlacklistStr)
+
+    spawnmenu.AddToolMenuOption("Options", "Replace Hostile", "ReplaceHostileConfig", "Settings", "", "", function(panel)
+        panel:ClearControls()
+        
+        local blacklistEntry = panel:TextEntry("Blacklist Classes", "replacehostile_blacklist")
+
+        panel:ControlHelp("Separate classes with commas.\nExample: npc_my_custom_hostile,npc_my_hostile,npc_hostile_test")
+        panel:Button("Reload NPCs", "replacehostile_reload")
+
+        blacklistEntry.OnChange = function(self)
+            local val = self:GetValue() or ""
+            local newBlacklist = {}
+
+            for e in string.gmatch(val, '([^,]+)') do
+                local trimmed = string.Trim(e)
+                if trimmed ~= "" then
+                    table.insert(newBlacklist, trimmed)
+                end
+            end
+
+            local valid = true
+            for _, v in ipairs(newBlacklist) do
+                if type(v) ~= "string" or v == "" then
+                    valid = false
+                    break
+                end
+            end
+            
+            if valid then
+                file.Write("npc_blacklist.json", util.TableToJSON(newBlacklist, false))
+            end
+        end
+    end)
+end)
+
+timer.Simple(0, function()
+    replaceHostile()
+end)