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game/server/tf/halloween/headless_hatman_body.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+#include "cbase.h"
+
+#include "NextBot.h"
+#include "headless_hatman.h"
+#include "headless_hatman_body.h"
+
+
+//-------------------------------------------------------------------------------------------
+CHeadlessHatmanBody::CHeadlessHatmanBody( INextBot *bot ) : IBody( bot )
+{
+	m_moveXPoseParameter = -1;
+	m_moveYPoseParameter = -1;
+	m_currentActivity = -1;
+}
+
+
+//-------------------------------------------------------------------------------------------
+bool CHeadlessHatmanBody::StartActivity( Activity act, unsigned int flags )
+{
+	CBaseCombatCharacter *me = (CBaseCombatCharacter *)GetBot()->GetEntity();
+
+	int animSequence = ::SelectWeightedSequence( me->GetModelPtr(), act, me->GetSequence() );
+
+	if ( animSequence )
+	{
+		m_currentActivity = act;
+		me->SetSequence( animSequence );
+		me->SetPlaybackRate( 1.0f );
+		me->SetCycle( 0 );
+		me->ResetSequenceInfo();
+
+		return true;
+	}
+
+	return false;
+}
+
+
+//-------------------------------------------------------------------------------------------
+void CHeadlessHatmanBody::Update( void )
+{
+	CBaseCombatCharacter *me = (CBaseCombatCharacter *)GetBot()->GetEntity();
+
+	if ( m_moveXPoseParameter < 0 )
+	{
+		m_moveXPoseParameter = me->LookupPoseParameter( "move_x" );
+	}
+
+	if ( m_moveYPoseParameter < 0 )
+	{
+		m_moveYPoseParameter = me->LookupPoseParameter( "move_y" );
+	}
+
+
+	// Update the pose parameters
+	float speed = GetBot()->GetLocomotionInterface()->GetGroundSpeed(); // me->GetAbsVelocity().Length();
+
+	if ( speed < 0.01f )
+	{
+		// stopped
+		if ( m_moveXPoseParameter >= 0 )
+		{
+			me->SetPoseParameter( m_moveXPoseParameter, 0.0f );
+		}
+
+		if ( m_moveYPoseParameter >= 0 )
+		{
+			me->SetPoseParameter( m_moveYPoseParameter, 0.0f );
+		}
+	}
+	else
+	{
+		Vector forward, right, up;
+		me->GetVectors( &forward, &right, &up );
+
+		const Vector &motionVector = GetBot()->GetLocomotionInterface()->GetGroundMotionVector();
+
+		// move_x == 1.0 at full forward motion and -1.0 in full reverse
+		if ( m_moveXPoseParameter >= 0 )
+		{
+			float forwardVel = DotProduct( motionVector, forward );
+
+			me->SetPoseParameter( m_moveXPoseParameter, forwardVel );
+		}
+
+		if ( m_moveYPoseParameter >= 0 )
+		{
+			float sideVel = DotProduct( motionVector, right );
+
+			me->SetPoseParameter( m_moveYPoseParameter, sideVel );
+		}
+	}
+
+	// adjust animation speed to actual movement speed
+	if ( me->m_flGroundSpeed > 0.0f )
+	{
+		// Clamp playback rate to avoid datatable warnings.  Anything faster would look silly, anyway.
+		float playbackRate = clamp( speed / me->m_flGroundSpeed, -4.f, 12.f );
+		me->SetPlaybackRate( playbackRate );
+	}
+
+	// move the animation ahead in time	
+	me->StudioFrameAdvance();
+	me->DispatchAnimEvents( me );
+}
+
+
+//---------------------------------------------------------------------------------------------
+// return the bot's collision mask (hack until we get a general hull trace abstraction here or in the locomotion interface)
+unsigned int CHeadlessHatmanBody::GetSolidMask( void ) const
+{
+	return MASK_NPCSOLID | CONTENTS_PLAYERCLIP;
+}