[oplkill]

Hi, i trying to hook game function "CBaseObject::IsPlacementPosValid", but it doesnt work, its always return 0(false) in any cases...
What i doing wrong?

PHP Code:

int sentryEntity = -1;
Handle hIsPlacementPosValid;

public void OnPluginStart()
{
    RegAdminCmd("sm_canPlace", Command_ForcePlacement, ADMFLAG_GENERIC);

    Handle gamedatafile=LoadGameConfigFile("buildonbuildings_defs.games");
    if(gamedatafile==null)
    {
        SetFailState("Cannot find file buildonbuildings_defs.games!");
    }
    StartPrepSDKCall(SDKCall_Entity);
    PrepSDKCall_SetFromConf(gamedatafile, SDKConf_Signature, "CBaseObject::IsPlacementPosValid");
    PrepSDKCall_SetReturnInfo(SDKType_Bool, SDKPass_ByValue);
    PrepSDKCall_AddParameter(SDKType_CBaseEntity, SDKPass_ByValue);
    PrepSDKCall_AddParameter(SDKType_Vector, SDKPass_ByRef);
    hIsPlacementPosValid = EndPrepSDKCall();
}

public Action Command_ForcePlacement(int client, int args)
{
    float flPos[3];
    GetClientLookPosition(client, flPos);
    
    if (sentryEntity == -1)
    {
        sentryEntity = SpawnSentry(client, flPos);
    }
    //TeleportEntity(sentryEntity, NULL_VECTOR, NULL_VECTOR, flPos);
    
    bool can = SDKCall(hIsPlacementPosValid, sentryEntity, flPos);
    PrintToChat(client, "%d", can);
} 


[xerox8521]

You are creating an SDKCall which as the name implies calls a function. Check the DHooks extension documention and the detour documention on how to set it up.

[Naydef]

Exactly why you're trying to hook the function? I noticed that the gamedata's filename and content is the same as the one I posted in Dhooks thread and it's used by build on buildings plugin. You are trying to make such plugin?

[oplkill]

Originally Posted by Naydef Exactly why you're trying to hook the function? I noticed that the gamedata's filename and content is the same as the one I posted in Dhooks thread and it's used by build on buildings plugin. You are trying to make such plugin?

I want to call that function with my custom placed sentry to know is that placement that i see by my player is correct by standart valve engineers sentry placements rules or not. For not allow build a sentires at sky boxes or other places...
I guess i messed up with thread name, maybe it supposed to be "How to call game function and get return from it"

[Pelipoika]

Originally Posted by oplkill I want to call that function with my custom placed sentry to know is that placement that i see by my player is correct by standart valve engineers sentry placements rules or not. For not allow build a sentires at sky boxes or other places... I guess i messed up with thread name, maybe it supposed to be "How to call game function and get return from it"

Sounds like you just want to check if a sentry that is being held is placeable where you are trying to built it at currently.

if that is the case then this snippet will tell you whether or not the current placement of the building you are holding is valid:

if(IsWeapon(actor, TF_WEAPON_BUILDER))
{
	int objBeingBuilt = GetEntPropEnt(GetActiveWeapon(actor), Prop_Send, "m_hObjectBeingBuilt");
	
	if(!IsValidEntity(objBeingBuilt))
		return false;
	
	bool m_bPlacementOK = !!GetEntData(objBeingBuilt, FindSendPropInfo("CObjectSentrygun", "m_iKills") - 4);
}