gremlin.cpp

Blood 2全套源码

		Move(vVel, MATH_EPSILON);

		m_nCurMetacmd = MC_DODGE_RIGHT;
        m_bAnimating = DTRUE; 
    }
    else
    {        
		CollisionInfo collisionInfo;
		m_pServerDE->GetStandingOn(m_hObject, &collisionInfo);

		if (collisionInfo.m_hObject)
		{
			DVector vVel;
			VEC_INIT(vVel);

			Move(vVel, MATH_EPSILON);

			m_bAnimating = DFALSE; 
			Metacmd++;
		}
    }               
	
    return;
}

// ----------------------------------------------------------------------- //
// ROUTINE		: GremlinAI::ComputeState
// DESCRIPTION	: Compute actual substate
// RETURN TYPE	: void 
// ----------------------------------------------------------------------- //

void GremlinAI::ComputeState(int nStimType)
{
	int nStim = nStimType;

	if(nStimType == -1)
		nStim = ComputeStimuli();

	if(nStim == 0)
	{
		switch(m_nState)
		{
			case STATE_Idle:				SetNewState(STATE_Idle);			break;
			case STATE_SearchVisualTarget:	SetNewState(STATE_Idle);			break;
			case STATE_SearchSmellTarget:	SetNewState(STATE_Idle);			break;
			default:						SetNewState(STATE_SearchSmellTarget);	break;
		}
	}
	else
	{
		if(nStimType == STIM_SMELL)
			SetNewState(STATE_SearchSmellTarget);
		else if(m_fStimuli[SIGHT] <= 0.75f)
			SetNewState(STATE_AttackFar);
		else
			SetNewState(STATE_AttackClose);
	}

	return;
}

// ----------------------------------------------------------------------- //
// ROUTINE		: GremlinAI::AI_STATE_AttackClose
// DESCRIPTION	: 
// RETURN TYPE	: void 
// ----------------------------------------------------------------------- //

void GremlinAI::AI_STATE_AttackClose()
{
	DFLOAT fHeight = (DFLOAT)fabs(m_vTargetPos.y - m_MoveObj.GetPos().y);

	//SCHLEGZ 4/22/98 4:51:21 PM: sanity check
	if(m_hTarget == DNULL)
	{
		ComputeState();

		return;
	}

	m_fStimuli[SIGHT] = VEC_DIST(m_MoveObj.GetPos(),m_vTargetPos);
	
	MC_FaceTarget();
	Metacmd--;

	DBOOL bAbove = (m_vTargetPos.y - m_MoveObj.GetPos().y) > 0;

	switch(Metacmd)
	{
		case 1:		MC_FaceTarget();	break;
		case 2:		if(m_fStimuli[SIGHT] <= 75.0f || m_nCurMetacmd == MC_FIRE_STAND 
						|| (bAbove && fHeight > m_vDims.y))
					{
						MC_Fire_Stand();
					}
					else
					{
						if(m_fStimuli[SIGHT] > (m_fSeeingDist * 0.33))
							ComputeState();
						else
							MC_Run();		
					} 
					
					break;
		case 3:		ComputeState();									break;
	}

	return;
}

// ----------------------------------------------------------------------- //
// ROUTINE		: GremlinAI::AI_STATE_AttackFar
// DESCRIPTION	: 
// RETURN TYPE	: void 
// ----------------------------------------------------------------------- //

void GremlinAI::AI_STATE_AttackFar()
{
	//SCHLEGZ 4/22/98 4:51:21 PM: sanity check
	if(m_hTarget == DNULL)
	{
		ComputeState();

		return;
	}

	DFLOAT fHeight = (DFLOAT)fabs(m_vTargetPos.y - m_MoveObj.GetPos().y);
	m_fStimuli[SIGHT] = VEC_DIST(m_MoveObj.GetPos(),m_vTargetPos);
	DBOOL bAbove = (m_vTargetPos.y - m_MoveObj.GetPos().y) > 0;
	
	MC_FaceTarget();
	Metacmd--;
					
	switch(Metacmd)
	{
		case 1:		{
						if (m_nCurMetacmd != MC_TAUNT_BOLD) {
							if (IsRandomChance(40))
							{
								MC_Taunt_Bold();
								Metacmd--;
							}
							else
								Metacmd++;
						}
						else
						{
							if(m_pServerDE->GetModelPlaybackState(m_hObject) & MS_PLAYDONE)	
								Metacmd++;
						}

						break;
					}
		case 2:		if(m_fStimuli[SIGHT] <= (m_fSeeingDist * 0.75) || m_nCurMetacmd == MC_FIRE_STAND 
						|| (bAbove && fHeight > m_vDims.y))
					{
						MC_Fire_Stand();
					}
					else
					{
						if(m_fStimuli[SIGHT] < (m_fSeeingDist * 0.33))
							ComputeState();
						else
							MC_Walk();		
					}
					
					break;
		case 3:		if((m_fStimuli[SIGHT] < (m_fSeeingDist * 0.33)) && m_nCurMetacmd != MC_JUMP)
					{
						ComputeState();
					}
					else if(m_fStimuli[SIGHT] < (m_fSeeingDist * 0.4) || m_nCurMetacmd == MC_JUMP
							|| IsLedge(m_MoveObj.GetForwardVector()))
					{
						MC_Jump();
					} else Metacmd++;

					break;
		default:	ComputeState();					break;
	}

	return;
}

// ----------------------------------------------------------------------- //
// ROUTINE		: GremlinAI::AI_STATE_Dodge
// DESCRIPTION	: 
// RETURN TYPE	: void 
// ----------------------------------------------------------------------- //

void GremlinAI::AI_STATE_Dodge()
{
	switch(Metacmd)
	{
		case 1:		m_nDodgeFlags = CalculateDodge(m_vTrackObjPos);
					Metacmd++;		break;
		case 2:		if(m_nDodgeFlags & RIGHT)
						MC_Dodge_Right();
					else if(m_nDodgeFlags & LEFT)
						MC_Dodge_Left();
					else
						Metacmd++;

					break;
		case 3:		SetNewState(m_nLastState);	break;
	}

	return;
}

// ----------------------------------------------------------------------- //
// ROUTINE		: GremlinAI::AI_STATE_GuardLocation
// DESCRIPTION	: 
// RETURN TYPE	: void 
// ----------------------------------------------------------------------- //

void GremlinAI::AI_STATE_GuardLocation()
{
	int nStimType = ComputeStimuli();

	MC_FaceTarget();
	Metacmd--;

	switch(Metacmd)
	{
		case 1:		if(nStimType != STIM_SMELL && nStimType > 0)
						Metacmd++;

					break;
		case 2:		MC_Taunt_Bold();		break;
		case 3:		if(m_fStimuli[SIGHT] <= m_fSeeingDist || m_nCurMetacmd == MC_FIRE_STAND)
					{
						MC_Fire_Stand();
					}
					else
						Metacmd++;

					break;
		case 4:		if(m_fStimuli[HEALTH] <= 0.50f)
						ComputeState();
					else
						Metacmd = 1;			
					
					break;
	}

	return;
}

// ----------------------------------------------------------------------- //
// ROUTINE		: GremlinAI::AI_STATE_Special1
// DESCRIPTION	: EATING state
// RETURN TYPE	: void 
// ----------------------------------------------------------------------- //

void GremlinAI::AI_STATE_Special1()
{
	if(m_damage.GetLastDamager())
	{
		ComputeState();
		return;
	}

	m_pServerDE->SetNextUpdate(m_hObject, 0.1f);

	switch(Metacmd)
	{
		case 1:		MC_Special(0);		break;
		case 2:		Metacmd = 1;		break;
	}

	return;
}


// ----------------------------------------------------------------------- //
//
//	ROUTINE:	CacheFiles
//
//	PURPOSE:	Cache resources used by the object
//
// ----------------------------------------------------------------------- //

void GremlinAI::CacheFiles()
{
	// Sanity checks...

	CServerDE* pServerDE = GetServerDE();
	if (!pServerDE) return;

	if(!(pServerDE->GetServerFlags() & SS_CACHING))
	{
		return;
	}

	if (!m_hObject) return;


	// Get the model filenames...

	char sModel[256] = { "" };
	char sSkin[256]  = { "" };

	pServerDE->GetModelFilenames(m_hObject, sModel, 255, sSkin, 255);


	// Cache models...

	pServerDE->CacheFile(FT_MODEL, sModel);


	// Cache textures...

	pServerDE->CacheFile(FT_TEXTURE, sSkin);


	// Cache sounds...

	SetCacheDirectory("sounds_ao\\enemies\\gremlin");

	CacheSoundFileRange("attack", 1, 3);
	CacheSoundFileRange("death", 1, 3);
	CacheSoundFileRange("idle", 1, 3);
	CacheSoundFileRange("pain", 1, 3);
	CacheSoundFileRange("taunt", 1, 3);
}

#endif // _ADD_ON