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game/client/tf2/c_walker_strider.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#include "cbase.h"
+#include "c_walker_strider.h"
+#include "beamdraw.h"
+#include "clienteffectprecachesystem.h"
+
+extern ConVar vehicle_free_pitch, vehicle_free_roll;
+
+
+CLIENTEFFECT_REGISTER_BEGIN( PrecacheWalkerStrider )
+CLIENTEFFECT_MATERIAL( STRIDER_BEAM_MATERIAL )
+CLIENTEFFECT_REGISTER_END()
+
+
+IMPLEMENT_CLIENTCLASS_DT( C_WalkerStrider, DT_WalkerStrider, CWalkerStrider )
+	RecvPropInt( RECVINFO( m_bCrouched ) )
+END_RECV_TABLE()
+LINK_ENTITY_TO_CLASS( walker_strider, C_WalkerStrider );
+
+
+ConVar cl_brush_ropes( "cl_brush_ropes", "0" );
+
+
+C_WalkerStrider::C_WalkerStrider()
+{
+	m_bCrouched = false;
+}
+
+
+C_WalkerStrider::~C_WalkerStrider()
+{
+	for ( int i=0; i < STRIDER_NUM_ROPES; i++ )
+	{
+		if ( m_hRopes[i].Get() )
+			m_hRopes[i]->Release();
+	}
+}
+
+
+float sideDist = 90;
+float downDist = -400;
+#include "studio.h"
+bool C_WalkerStrider::GetAttachment( int iAttachment, matrix3x4_t &attachmentToWorld )
+{
+	//
+	//
+	// This is a TOTAL hack, but we don't have any nodes that work well at all for mounted guns.
+	//
+	//
+	CStudioHdr *pStudioHdr = GetModelPtr( );
+	if ( !pStudioHdr || iAttachment < 1 || iAttachment > pStudioHdr->GetNumAttachments() )
+	{
+		return false;
+	}
+
+	Vector vLocalPos( 0, 0, 0 );
+	const mstudioattachment_t &pAttachment = pStudioHdr->pAttachment( iAttachment-1 );
+	if ( stricmp( pAttachment.pszName(), "build_point_left_gun" ) == 0 )
+	{
+		vLocalPos.y = sideDist;
+	}
+	else if ( stricmp( pAttachment.pszName(), "build_point_right_gun" ) == 0 )
+	{
+		vLocalPos.y = -sideDist;
+	}
+	else if ( stricmp( pAttachment.pszName(), "ThirdPersonCameraOrigin" ) == 0 )
+	{
+	}
+	else
+	{
+		// Ok, it's not one of our magical attachments. Use the regular attachment setup stuff.
+		return BaseClass::GetAttachment( iAttachment, attachmentToWorld );
+	}
+
+	if ( m_bCrouched )
+	{
+		vLocalPos.z += downDist;
+	}
+
+	// Now build the output matrix.
+	matrix3x4_t localMatrix;
+	SetIdentityMatrix( localMatrix );
+	PositionMatrix( vLocalPos, localMatrix );
+
+	ConcatTransforms( EntityToWorldTransform(), localMatrix, attachmentToWorld );
+	return true;
+}
+
+
+void C_WalkerStrider::ReceiveMessage( int classID, bf_read &msg )
+{
+	if ( classID != GetClientClass()->m_ClassID )
+	{
+		// message is for subclass
+		BaseClass::ReceiveMessage( classID, msg );
+		return;
+	}
+
+	Vector vHitPos;
+	msg.ReadBitVec3Coord( vHitPos );
+
+	CStriderBeamEffect eff;
+	eff.m_vHitPos = vHitPos;
+	eff.m_flStartTime = gpGlobals->curtime;
+	m_BeamEffects.AddToTail( eff );
+}
+
+
+float flTestSlack = 280;
+float flTestSlack2 = 380;
+
+void C_WalkerStrider::OnDataChanged( DataUpdateType_t type )
+{
+	BaseClass::OnDataChanged( type );
+
+	if ( type == DATA_UPDATE_CREATED )
+	{
+		if ( cl_brush_ropes.GetInt() )
+		{
+			// Create some ropes and hang them off certain attachments.
+			int indices[7] = 
+			{
+				LookupAttachment( "kneeL" ),
+				LookupAttachment( "kneeR" ),
+				LookupAttachment( "kneeB" ),
+				
+				LookupAttachment( "MiniGun" ),
+				LookupAttachment( "left foot" ),
+				LookupAttachment( "right foot" ),
+				LookupAttachment( "back foot" )
+			};
+			
+			m_hRopes[0] = C_RopeKeyframe::Create( this, this, indices[0], indices[1] );
+			m_hRopes[1] = C_RopeKeyframe::Create( this, this, indices[0], indices[2] );
+			m_hRopes[2] = C_RopeKeyframe::Create( this, this, indices[1], indices[2] );
+
+			for ( int i=0; i < 3; i++ )
+			{
+				if ( m_hRopes[i].Get() )
+					m_hRopes[i]->SetSlack( flTestSlack );
+			}
+
+
+			m_hRopes[3] = C_RopeKeyframe::Create( this, this, indices[3], indices[4] );
+			m_hRopes[4] = C_RopeKeyframe::Create( this, this, indices[3], indices[5] );
+			m_hRopes[5] = C_RopeKeyframe::Create( this, this, indices[3], indices[6] );
+
+			for ( i=3; i < 6; i++ )
+			{
+				if ( m_hRopes[i].Get() )
+					m_hRopes[i]->SetSlack( flTestSlack2 );
+			}
+		}
+	}
+}
+
+
+void C_WalkerStrider::ClientThink()
+{
+	// Retire beam effects.
+	int iNext;
+	for ( int i=m_BeamEffects.Head(); i != m_BeamEffects.InvalidIndex(); i=iNext )
+	{
+		iNext = m_BeamEffects.Next( i );
+	
+		if ( gpGlobals->curtime >= (m_BeamEffects[i].m_flStartTime + STRIDER_BEAM_LIFETIME) )
+		{
+			m_BeamEffects.Remove( i );
+		}
+	}
+}
+
+
+int C_WalkerStrider::DrawModel( int flags )
+{
+	BaseClass::DrawModel( flags );
+
+	IMaterial *pMaterial = materials->FindMaterial( STRIDER_BEAM_MATERIAL, TEXTURE_GROUP_CLIENT_EFFECTS );
+
+	Vector vGunPos;
+	QAngle vAngles;
+	BaseClass::GetAttachment( LookupAttachment( "BigGun" ), vGunPos, vAngles );
+
+	// Draw our beam effects.
+	FOR_EACH_LL( m_BeamEffects, i )
+	{
+		CStriderBeamEffect *pEff = &m_BeamEffects[i];
+
+		float flAlpha = (gpGlobals->curtime - pEff->m_flStartTime) / STRIDER_BEAM_LIFETIME;
+		flAlpha = 1.0 - clamp( flAlpha, 0, 1 );
+
+		CBeamSegDraw segDraw;
+		segDraw.Start( 2, pMaterial );
+
+		CBeamSeg seg;
+		seg.m_vColor.Init( 1, 0, 0 );
+		seg.m_flWidth = STRIDER_BEAM_WIDTH;
+		seg.m_flAlpha = flAlpha;
+
+		seg.m_flTexCoord = 0;
+		seg.m_vPos = vGunPos;
+		segDraw.NextSeg( &seg );
+
+		seg.m_flTexCoord = 1;
+		seg.m_vPos = pEff->m_vHitPos;
+		segDraw.NextSeg( &seg );
+		
+		segDraw.End();
+	}
+
+	return 1;
+}
+