C++ CAI_BaseNPC::BodyDirection2D方法代码示例

//-----------------------------------------------------------------------------
// Purpose: Gets event from anim stream and throws the object
// Input  :
// Output :
//-----------------------------------------------------------------------------
void CWeaponMolotov::Operator_HandleAnimEvent( animevent_t *pEvent, CBaseCombatCharacter *pOperator )
{
	switch( pEvent->event )
	{
		case EVENT_WEAPON_THROW:
		{
			CAI_BaseNPC *pNPC	= GetOwner()->MyNPCPointer();
			if (!pNPC)
			{
				return;
			}

			CBaseEntity *pEnemy = pNPC->GetEnemy();
			if (!pEnemy)
			{
				return;
			}

			Vector vec_target = pNPC->GetEnemyLKP();

			// -----------------------------------------------------
			//  Get position of throw
			// -----------------------------------------------------
			// If owner has a hand, set position to the hand bone position
			Vector launchPos;
			int iBIndex = pNPC->LookupBone("Bip01 R Hand");
			if (iBIndex != -1) 
			{
				Vector origin;
				QAngle angles;
				pNPC->GetBonePosition( iBIndex, launchPos, angles);
			}
			// Otherwise just set to in front of the owner
			else 
			{
				Vector vFacingDir = pNPC->BodyDirection2D( );
				vFacingDir = vFacingDir * 60.0; 
				launchPos = pNPC->GetAbsOrigin()+vFacingDir;
			}


			//Vector vecVelocity = VecCheckToss( pNPC, launchPos, vec_target, 1.0 );

			ThrowMolotov( launchPos, m_vecTossVelocity);

			// Drop the weapon and remove as no more ammo
			pNPC->Weapon_Drop( this );
			UTIL_Remove( this );
		}
		break;
		default:
			BaseClass::Operator_HandleAnimEvent( pEvent, pOperator );
			break;
	}
}

int CWeaponCrowbar::WeaponMeleeAttack1Condition( float flDot, float flDist )
{
	// Attempt to lead the target (needed because citizens can't hit manhacks with the crowbar!)
	CAI_BaseNPC *pNPC	= GetOwner()->MyNPCPointer();
	CBaseEntity *pEnemy = pNPC->GetEnemy();
	if (!pEnemy)
		return COND_NONE;

	Vector vecVelocity;
	vecVelocity = pEnemy->GetSmoothedVelocity( );

	// Project where the enemy will be in a little while
	float dt = sk_crowbar_lead_time.GetFloat();
	dt += random->RandomFloat( -0.3f, 0.2f );
	if ( dt < 0.0f )
		dt = 0.0f;

	Vector vecExtrapolatedPos;
	VectorMA( pEnemy->WorldSpaceCenter(), dt, vecVelocity, vecExtrapolatedPos );

	Vector vecDelta;
	VectorSubtract( vecExtrapolatedPos, pNPC->WorldSpaceCenter(), vecDelta );

	if ( fabs( vecDelta.z ) > 70 )
	{
		return COND_TOO_FAR_TO_ATTACK;
	}

	Vector vecForward = pNPC->BodyDirection2D( );
	vecDelta.z = 0.0f;
	float flExtrapolatedDist = Vector2DNormalize( vecDelta.AsVector2D() );
	if ((flDist > 64) && (flExtrapolatedDist > 64))
	{
		return COND_TOO_FAR_TO_ATTACK;
	}

	float flExtrapolatedDot = DotProduct2D( vecDelta.AsVector2D(), vecForward.AsVector2D() );
	if ((flDot < 0.7) && (flExtrapolatedDot < 0.7))
	{
		return COND_NOT_FACING_ATTACK;
	}

	return COND_CAN_MELEE_ATTACK1;
}

int CWeaponStunStick::WeaponMeleeAttack1Condition( float flDot, float flDist )
{
	// Attempt to lead the target (needed because citizens can't hit manhacks with the crowbar!)
	CAI_BaseNPC *pNPC	= GetOwner()->MyNPCPointer();
	CBaseEntity *pEnemy = pNPC->GetEnemy();
	if (!pEnemy)
		return COND_NONE;

	Vector vecVelocity;
	AngularImpulse angVelocity;
	pEnemy->GetVelocity( &vecVelocity, &angVelocity );

	// Project where the enemy will be in a little while, add some randomness so he doesn't always hit
	float dt = sk_crowbar_lead_time.GetFloat();
	dt += random->RandomFloat( -0.3f, 0.2f );
	if ( dt < 0.0f )
		dt = 0.0f;

	Vector vecExtrapolatedPos;
	VectorMA( pEnemy->WorldSpaceCenter(), dt, vecVelocity, vecExtrapolatedPos );

	Vector vecDelta;
	VectorSubtract( vecExtrapolatedPos, pNPC->WorldSpaceCenter(), vecDelta );

	if ( fabs( vecDelta.z ) > 70 )
	{
		return COND_TOO_FAR_TO_ATTACK;
	}

	Vector vecForward = pNPC->BodyDirection2D( );
	vecDelta.z = 0.0f;
	float flExtrapolatedDot = DotProduct2D( vecDelta.AsVector2D(), vecForward.AsVector2D() );
	if ((flDot < 0.7) && (flExtrapolatedDot < 0.7))
	{
		return COND_NOT_FACING_ATTACK;
	}

	float flExtrapolatedDist = Vector2DNormalize( vecDelta.AsVector2D() );

	if( pEnemy->IsPlayer() )
	{
		//Vector vecDir = pEnemy->GetSmoothedVelocity();
		//float flSpeed = VectorNormalize( vecDir );

		// If player will be in front of me in one-half second, clock his arse.
		Vector vecProjectEnemy = pEnemy->GetAbsOrigin() + (pEnemy->GetAbsVelocity() * 0.35);
		Vector vecProjectMe = GetAbsOrigin();

		if( (vecProjectMe - vecProjectEnemy).Length2D() <= 48.0f )
		{
			return COND_CAN_MELEE_ATTACK1;
		}
	}
/*
	if( metropolice_move_and_melee.GetBool() )
	{
		if( pNPC->IsMoving() )
		{
			flTargetDist *= 1.5f;
		}
	}
*/
	float flTargetDist = 48.0f;
	if ((flDist > flTargetDist) && (flExtrapolatedDist > flTargetDist))
	{
		return COND_TOO_FAR_TO_ATTACK;
	}

	return COND_CAN_MELEE_ATTACK1;
}