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game/client/tf/c_playerattachedmodel.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: A clientside, visual only model that's attached to players
+//
+//=============================================================================
+
+#include "cbase.h"
+#include "c_playerattachedmodel.h"
+
+// Todo: Turn these all into parameters
+#define PAM_ANIMATE_TIME		0.075
+#define PAM_ROTATE_TIME			0.075
+
+#define PAM_SCALE_SPEED			7
+#define PAM_MAX_SCALE			3
+#define PAM_SPIN_SPEED			360
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+C_PlayerAttachedModel *C_PlayerAttachedModel::Create( const char *pszModelName, C_BaseEntity *pParent, int iAttachment, Vector vecOffset, float flLifetime, int iFlags )
+{
+	C_PlayerAttachedModel *pFlash = new C_PlayerAttachedModel;
+	if ( !pFlash )
+		return NULL;
+
+	if ( !pFlash->Initialize( pszModelName, pParent, iAttachment, vecOffset, flLifetime, iFlags ) )
+		return NULL;
+
+	return pFlash;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+bool C_PlayerAttachedModel::Initialize( const char *pszModelName, C_BaseEntity *pParent, int iAttachment, Vector vecOffset, float flLifetime, int iFlags )
+{
+	AddEffects( EF_NORECEIVESHADOW | EF_NOSHADOW );
+	if ( InitializeAsClientEntity( pszModelName, RENDER_GROUP_OPAQUE_ENTITY ) == false )
+	{
+		Release();
+		return false;
+	}
+
+	SetParent( pParent, iAttachment ); 
+	SetLocalOrigin( vecOffset );
+	SetLocalAngles( vec3_angle );
+
+	AddSolidFlags( FSOLID_NOT_SOLID );
+
+	SetLifetime( flLifetime );
+	SetNextClientThink( CLIENT_THINK_ALWAYS );
+
+	SetCycle( 0 );
+
+	m_iFlags = iFlags;
+	m_flScale = 0;
+
+	if ( m_iFlags & PAM_ROTATE_RANDOMLY )
+	{
+		m_flRotateAt = gpGlobals->curtime + PAM_ANIMATE_TIME;
+	}
+	if ( m_iFlags & PAM_ANIMATE_RANDOMLY )
+	{
+		m_flAnimateAt = gpGlobals->curtime + PAM_ROTATE_TIME;
+	}
+
+	return true;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void C_PlayerAttachedModel::SetLifetime( float flLifetime )
+{
+	if ( flLifetime == PAM_PERMANENT )
+	{
+		m_flExpiresAt = PAM_PERMANENT;
+	}
+	else
+	{
+		// Expire when the lifetime is up
+		m_flExpiresAt = gpGlobals->curtime + flLifetime;
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void C_PlayerAttachedModel::ClientThink( void )
+{
+	if ( !GetMoveParent() || (m_flExpiresAt != PAM_PERMANENT && gpGlobals->curtime > m_flExpiresAt) )
+	{
+		Release();
+		return;
+	}
+
+	if ( m_iFlags & PAM_ANIMATE_RANDOMLY && gpGlobals->curtime > m_flAnimateAt )
+	{
+		float flDelta = RandomFloat(0.2,0.4) * (RandomInt(0,1) == 1 ? 1 : -1);
+		float flCycle = clamp( GetCycle() + flDelta, 0.f, 1.f );
+		SetCycle( flCycle );
+		m_flAnimateAt = gpGlobals->curtime + PAM_ANIMATE_TIME;
+	}
+
+	if ( m_iFlags & PAM_ROTATE_RANDOMLY && gpGlobals->curtime > m_flRotateAt )
+	{
+		SetLocalAngles( QAngle(0,0,RandomFloat(0,360)) );
+		m_flRotateAt = gpGlobals->curtime + PAM_ROTATE_TIME;
+	}
+
+	if ( m_iFlags & PAM_SPIN_Z )
+	{
+		float flAng = GetAbsAngles().y + (gpGlobals->frametime * PAM_SPIN_SPEED);
+		SetLocalAngles( QAngle(0,flAng,0) );
+	}
+
+	if ( m_iFlags & PAM_SCALEUP )
+	{
+		m_flScale = MIN( m_flScale + (gpGlobals->frametime * PAM_SCALE_SPEED), PAM_MAX_SCALE );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void C_PlayerAttachedModel::ApplyBoneMatrixTransform( matrix3x4_t& transform )
+{
+	BaseClass::ApplyBoneMatrixTransform( transform );
+
+	if ( !(m_iFlags & PAM_SCALEUP) )
+		return;
+
+	VectorScale( transform[0], m_flScale, transform[0] );
+	VectorScale( transform[1], m_flScale, transform[1] );
+	VectorScale( transform[2], m_flScale, transform[2] );
+}