[awesome144]

So I'm a little perplexed on how the InitialContainedAction callback works. Changing the third parameter with a different return allows a different action to be the child action, but I don't really know what the purpose of the first parameter is for. Also I'm wondering is it possible to get the action it should return (assuming the action it hooked uses InitialContainedAction), if that has to be done using the post hook.

[BHaType]

Originally Posted by awesome144 So I'm a little perplexed on how the InitialContainedAction callback works.

Action calls InitialContainedAction to create optional child action and invoked before OnStart of calle action also child action always gets updates first.

Originally Posted by awesome144 Changing the third parameter with a different return allows a different action to be the child action, but I don't really know what the purpose of the first parameter is for.

That's was include issue, I just pushed update to remove this confusion (InitialContainedAction).
First two params are basicly same for all non contextual handlers. The 3rd one represents return value of InitialContainedAction handler.

Originally Posted by awesome144 Also I'm wondering is it possible to get the action it should return (assuming the action it hooked uses InitialContainedAction), if that has to be done using the post hook.

Yep, simply hook InitialContainedActionPost and then child param will be actual return value of original IntialContainedAction.

[BHaType]

Updated

PHP Code:

- Renamed 3rd param of InitialContainedAction to more appropriate name 
- Simplified InitialContainedAction child param routine (before you had to wait 1 frame to use it) 


[BHaType]

Updated

PHP Code:

- Fixed crash caused by prior update 


[Mystik Spiral]

Hi BHaType!

In this post, you provided this example. On line 42 of that example is this text:

PrepSDKCall_SetVirtual(284); // 285 linux

Does this mean I need to change 284 to 285 if my code is running on Linux instead of Windows?

I realize that is an index (vtblidx), but I am not sure what it is an index to. There are still many things for me to learn about SourceMod so I apologize if my question seems "basic".

If that is what I need to do, since my plugin also uses Left4DHooksDirect, I thought I would try to use GetOSType to set the value appropriately.

[BHaType]

Originally Posted by Mystik Spiral Does this mean I need to change 284 to 285 if my code is running on Linux instead of Windows?

Yes, if you don't change it then plugin will call wrong function which most likely cause a crash.

Originally Posted by Mystik Spiral I realize that is an index (vtblidx), but I am not sure what it is an index to. There are still many things for me to learn about SourceMod so I apologize if my question seems "basic".

There is a special keyword in C++ to store function in an array with other functions with same keyword.
If you need to call specific function from that array then you need to know index of the function you want to call.
You can decompile appropriate binary and calculate index by yourself or use VTable Dumper by asherkin.

In your case 284 is an index of "Weapon_Switch" from "CTerrorPlayer" array.
Those indexes are different between Windows and Linux because afaik this is compiler specific stuff.

This is extremely simplified explanation.

Originally Posted by Mystik Spiral If that is what I need to do, since my plugin also uses Left4DHooksDirect, I thought I would try to use GetOSType to set the value appropriately.

There is nothing wrong with GetOSType but actually it's a bad practice.
Anything platform/game specific or ambiguous data is always better to cover up into gamedata if possible.

[Mystik Spiral]

Great info. Thank you @BHaType!

[awesome144]

SelectMoreDangerousThreat is an optional native, but it doesn't have its own property in the methodmap? Also could I get an explanation of its callback function?

[caxanga334]

Originally Posted by awesome144 SelectMoreDangerousThreat is an optional native, but it doesn't have its own property in the methodmap? Also could I get an explanation of its callback function?

When IVision::GetPrimaryKnownThreat is called, IContextualQuery::SelectMoreDangerousThreat is used to filter/select which Known Entity the bot should consider as it's primary threat. Generally used when selecting targets to attack.

IContextualQuery::SelectMoreDangerousThreat returns a CKnownEntity pointer and has 4 parameters: The bot itself, the bot BCC, and two known entities, threat1 and threat2. The function must return if the bot should focus on threat1 or threat2. NULL can be returned for a 'no answer'.

In the extension: function Action (any action, Address nextbot, int entity, Address threat1, Address threat2, Address& knownEntity). You have the address to threat1 and threat2. The result is stored in the last parameter: Address& knownEntity.

[little_froy]

L4D2 how can I get attack target in SurvivorAttack? I want to prevent some attacks.

Solved: https://forums.alliedmods.net/showthread.php?t=346696