Feign Death Code - Revised

[Wiz]

This is a complete code snippet for Feign Death, including aggro clearing, enemy memory, and such.

To initiate, open client_process.cpp, and insert this under the opcodes.

					case OP_FeignDeath:
					{
int16 feignskill = GetSkill(FEIGN_DEATH);
						int16 primfeign = feignskill;
						int16 secfeign = feignskill;
						if (primfeign > 100) 
						{
							primfeign = 100;
							secfeign = secfeign - 100;
							secfeign = secfeign / 2;
						}	
						else
							secfeign = 0;
						int16 totalfeign = primfeign + secfeign;
						if (rand()%160 > totalfeign)
						{
							SetFeigned(false);
							entity_list.MessageClose(this,false,200,0,"%s has fallen to the ground.",this->GetName());
						}
						else
						{
							SetFeigned(true);
							entity_list.ClearFeignAggro(this);
						}
						if (rand()%300 > feignskill && rand()%4 == 1 && feignskill < 200 && feignskill < GetLevel()*5+5) 
						{
						    SetSkill(25,++pp.skills[25]);
							UpdateWho();
						}
						break;
					}

Now, go further up in client_process.cpp, find OP_SpawnAppearance. Under standing, sitting, looting and ducking, insert

SetFeigned(false);

Insert this into client.h:

	void	SetFeigned(bool in_feigned);
	bool    GetFeigned()	{return feigned;}
        bool    feigned;

Insert this into Client::Client in client.cpp

feigned=false;

And this at the bottom of client.cpp

void Client::SetFeigned(bool in_feigned) {
	if (in_feigned)
		SetPet(0); //Crashes unless this is put here
	feigned=in_feigned;
 }

Insert into npc.h

void	SetFeignMemory(const char* num) {feign_memory = num;}
const char*	feign_memory;
int8    forgetchance;
Timer* forget_timer;

Insert into npc.cpp, in NPC::NPC

feign_memory = "0";
forget_timer = new Timer(500);
forgetchance = 0;

Insert into npc.cpp, at the bottom of Process();

	if (forget_timer->Check() && strstr(GetFeignMemory(),"0") == NULL) {
		Client* remember_client = entity_list.GetClientByName(GetFeignMemory());
		if (remember_client != 0)
		{
			if (!remember_client->CastToClient()->GetFeigned())
			{
				AddToHateList(remember_client,1);
				SetFeignMemory("0");
				forgetchance = 0;
			}
			else if (rand()%100 <= forgetchance)
			{
				SetFeignMemory("0");
				forgetchance = 0;
			}
			else
			{
				forgetchance = forgetchance + 5;
			}
		}
		else
		{
			SetFeignMemory("0");
		}
	}

Insert into entity.h:

	void	ClearFeignAggro(Mob* targ);

Insert into entity.cpp:

void EntityList::ClearFeignAggro(Mob* targ)
{
	LinkedListIterator<Entity*> iterator(list);
	iterator.Reset();
	while(iterator.MoreElements())
	{
		if (iterator.GetData()->IsNPC() && iterator.GetData()->CastToNPC()->CheckAggro(targ))
		{
			iterator.GetData()->CastToNPC()->RemoveFromHateList(targ);
			if (iterator.GetData()->CastToMob()->GetLevel() >= 35)
			{
				iterator.GetData()->CastToNPC()->SetFeignMemory(targ->CastToMob()->GetName());
			}
		}
		iterator.Advance();
	}
}

In NpcAI.cpp, find this line:

								sender->AddToHateList(currentmob,1);

A bit above it, in the if statement, add

&& !currentmob->CastToClient()->GetFeigned()

to prevent mobs from aggroing a feigned person.

Insert this into spells.cpp, under SpellEffect:

	if (spells[spell_id].goodEffect == 0 && this->IsClient() && this->CastToClient()->GetFeigned()) {
		this->CastToClient()->Message(MT_Shout,"You are no longer feigning death because a spell hit you!");
		this->CastToClient()->SetFeigned(false);
	}

Finally, insert into spells.cpp, under SE_FeignDeath:

				this->CastToClient()->SetFeigned(true);
				entity_list.ClearFeignAggro(this);

You're done! Yeah, it doesn't work exactly like VI's rather fucked up feign death code, but here's the advantages:

- Easier processing. Having a purely time based forget chance eliminates some of the more comical aspects to VI's FD, and can also be modified per NPC through a database, if some tweaking is done.

- You don't have to turn off autoattack for this feign to work (Never understood that anyways).

- No feign bug, at all. This feign always works when successfully processed.

[Wiz]

Oh, yeah. This needs to be added to hate_list.cpp:

bool HateList::IsOnList(Mob* targ)
{
	HateListElement *current = first;

	if (first == 0) {
		return false;
	}

	int r = ElementCount;
	for (int i=0; i < r; i++) {
		if (current && current->GetEnt() == targ) {
			return true;
		}
		current = current->GetNext();
	}
	return false;
}

This to hate_list.h:

bool IsOnList(Mob* targ);

And this to npc.h:

bool	CheckAggro(Mob* other) {return hate_list.IsOnList(other);}

Sorry 'bout that. :P

[Xarslik]

Very nice wiz, can't wait to test it out on next release. =)

[a_Guest03]

Very clean and good, Wiz Thanks for the feature!

[kathgar]

You kinda missed the whole they only forget after they walk back to spawn point(we dont' do) and then they alwyas forget unless they are above level 35..

[Wiz]

Actually kath, level 35 is included. Check again.

Also, they CAN forget without walking back to spawn point, the chance is small - I just did it this way, because I personally like this system better. I don't believe in doing everything exactly as VI has.

I'll just quote the section:

			if (iterator.GetData()->CastToMob()->GetLevel() >= 35)
			{
				iterator.GetData()->CastToNPC()->SetFeignMemory(targ->CastToMob()->GetName());
			}

[Wiz]

Fixed a typo in the code.

But, if you REALLY want a VI clone, here you go:

	if (forget_timer->Check() && strcasecmp(GetFeignMemory(),"0") != 0) {
		Client* remember_client = entity_list.GetClientByName(GetFeignMemory());
		if (remember_client != 0)
		{
			if (org_x == GetX() && org_y == GetY())
				forgetchance = 80;
			else
				forgetchance = 15;
			if (!remember_client->CastToClient()->GetFeigned() && rand()%100 <= forgetchance)
			{
				AddToHateList(remember_client,1);
				SetFeignMemory("0");
				forgetchance = 0;
			}
			else if (!remember_client->CastToClient()->GetFeigned())
			{
				SetFeignMemory("0");
				forgetchance = 0;
			}
		}
		else
		{
			SetFeignMemory("0");
		}
	}

Exactly like the VI remember chance. Enjoy.

[kathgar]

Hmm, it sure does.. my bad =P