[Marttt]

I would like to know if it's possible/how to clone an entity through SourceMod keeping all its previous properties and KeyValues.

Since it isn't possible to change the classname after an entity is created I need to copy an existing one, but creating it as another classname.

[Dragokas]

Dunno, how may it help you. For test reasons I reproduced props of one target to another target using tEntDev + such script:

PHP Code:

#pragma semicolon 1
#pragma newdecls required

#include <sourcemod>
#include <sdktools>

public void OnPluginStart()
{
    RegAdminCmd    ("sm_reproduce",     Cmd_ReproduceProp,        ADMFLAG_ROOT,    "Clone properties on aim target based on the properties previously saved by sm_ted_select of tEntDev");
}

public Action Cmd_ReproduceProp(int client, int args)
{
    int ent = GetClientAimTarget(client, false);
    
    if (ent < 0) { // || !IsTank(ent)) {
        PrintToChat(client, "Not aimed or not a tank! Ent = %i", ent);
        return Plugin_Handled;
    }

    PrintToChat(client, "Reproducing properties on %i ...", ent);

    KeyValues kv;
    char sItem[16], sName[64], sValue[64];
    int iValue;
    float fValue, vValue[3];
    
    kv = CreateKeyValues("tank");
    
    if (FileToKeyValues(kv, "kvtest.txt")) { // tEntDev report file (root of game folder)
        PrintToChat(client, "kvtest.txt is Loaded");
        
        kv.Rewind();
        kv.GotoFirstSubKey();
        
        do
        {
            kv.GetSectionName(sItem, sizeof(sItem)); // compare to full list
            
            kv.GetString("Name", sName, sizeof(sName));
            
            if (HasEntProp(ent, Prop_Send, sName)) {
            
                PrintToConsole(client, "Name: %s", sName);
                
                switch(kv.GetNum("type")) {
                    case 0: { // integer
                        iValue = kv.GetNum("value");
                        SetEntProp(ent, Prop_Send, sName, iValue);
                        PrintToConsole(client, "%s = %i", sName, iValue);
                    }
                    case 1: { // float
                        fValue = kv.GetFloat("value");
                        SetEntPropFloat(ent, Prop_Send, sName, fValue);
                        PrintToConsole(client, "%s = %f", sName, fValue);
                    }
                    case 2: { // vector
                        kv.GetVector("value", vValue);
                        SetEntPropVector(ent, Prop_Send, sName, vValue);
                        PrintToConsole(client, "%s = %f %f %f", sName, vValue[0], vValue[1], vValue[2]);
                    }
                    case 3: { // ??
                    }
                    case 4: { // string
                        kv.GetString("value", sValue, sizeof(sValue), "error");
                        if (!StrEqual(sValue, "error")) {
                            SetEntPropString(ent, Prop_Send, sName, sValue);
                            PrintToConsole(client, "%s = %s", sName, sValue);
                        }
                    }
                }
            }
        } while (kv.GotoNextKey());
        
        ChangeEdictState(ent, 0);
    }
    else {
        PrintToChat(client, "kvtest.txt file is not found!");
    }
    PrintToChat(client, "Finished");
    return Plugin_Handled;
} 


sm_ted_select (on first aim target) + sm_reproduce (on second aim target)

[Marttt]

I will try later and give you some feedback, thanks Dragokas.

[kadet.89]

It is possible to change entity classname. At least it works in my extensions via IServerTools::SetKeyValue before entity is spawned.
you can try this:
DispatchKeyValue(entity, "classname", "prop_something");
And I wouldn't recommend to do it for "weapon_*" entities, changing classnames for weapon entities leads to strange behavior in CS:S and probably in all other source games.

[Shadowysn]

Originally Posted by kadet.89 It is possible to change entity classname. At least it works in my extensions via IServerTools::SetKeyValue before entity is spawned. you can try this: DispatchKeyValue(entity, "classname", "prop_something"); And I wouldn't recommend to do it for "weapon_*" entities, changing classnames for weapon entities leads to strange behavior in CS:S and probably in all other source games.

I think you should still be careful when changing classnames like that in any entity.

When I used this method to change the classnames of weapon_first_aid_kit_spawn's I created to just weapon_first_aid_kit in L4D2 to avoid crashing the game, it still eventually crashed due to no free edicts.
I think it was to do with garbage edicts being created from changing classnames, but I dunno, it's probably best to just leave the classname alone.

[kadet.89]

I've been using it a lot with prop_* and npc_* entities in CS:S and now use in CS:GO in CEntity framework, it's absolutely stable. But for weapon_* some tricks/corrections are required to avoid crashes. In CS:GO a weapon class id should be set to the correct one and a prefab for the new classname should be added. In CS:S map parser function should be hooked to replace the classname to the original one and then back in a postspawn hook and all animations are to be started "manually"

[Silvers]

Which entity are you trying to clone? If it's simply weapons or something else simple there are not many variables you would need to duplicate (position, model, maybe a few other properties depending on what you're doing).

Changing the classname in OnEntityCreated might crash because the entity has not yet spawned or been initialized with variables so the game might apply some which don't exist on the new classname. I think it would error out instead, I don't see how it could produce a no free edicts error. Would be good to test and verify all entities spawned with the old/new classname and see if it's really leaking, I personally would like to know the result.

[Marttt]

Hi Silvers, I'm trying to clone prop_dynamic/physics into a prop_car_alarm.

I read somewhere that if you change the classname of an entity, some events may not work properly because the entity was already spawned.

For example: if I change an entity to prop_car_alarm, the OnCarAlarmStart output doesn't fires.

At the moment the only way that I could achieve the firing events was by manually spawn a prop_car_alarm entity.

Maybe I'm doing something wrong, manually it works, but since I create all by hand some properties are lost this includes the attached events.

So I wanted to "clone" to get all properties from the previous entity and spawn it again.