add info_particle_system_coordinate, plus infinite cooldown functionality for prop_interactable similar to that of func_button

sp/src/game/client/c_particle_system.cpp

@@ -42,6 +42,7 @@ protected:
 
 
 	EHANDLE		m_hControlPointEnts[kMAXCONTROLPOINTS];
+	Vector		m_vControlPointVecs[kMAXCONTROLPOINTS];
 	//	SendPropArray3( SENDINFO_ARRAY3(m_iControlPointParents), SendPropInt( SENDINFO_ARRAY(m_iControlPointParents), 3, SPROP_UNSIGNED ) ),
 	unsigned char m_iControlPointParents[kMAXCONTROLPOINTS];
 
@@ -65,6 +66,7 @@ BEGIN_RECV_TABLE_NOBASE( C_ParticleSystem, DT_ParticleSystem )
 RecvPropFloat(RECVINFO(m_flStartTime)),
 
 RecvPropArray3(RECVINFO_ARRAY(m_hControlPointEnts), RecvPropEHandle(RECVINFO(m_hControlPointEnts[0]))),
+RecvPropArray3(RECVINFO_ARRAY(m_vControlPointVecs), RecvPropVector(RECVINFO(m_vControlPointVecs[0]))),
 RecvPropArray3(RECVINFO_ARRAY(m_iControlPointParents), RecvPropInt(RECVINFO(m_iControlPointParents[0]))),
 RecvPropBool(RECVINFO(m_bWeatherEffect)),
 END_RECV_TABLE();
@@ -150,14 +152,11 @@ void C_ParticleSystem::ClientThink( void )
 			AssertMsg1(pEffect, "Particle system couldn't make %s", pszName);
 			if (pEffect)
 			{
+				if (m_vControlPointVecs[0] != GetAbsOrigin() && m_hControlPointEnts[0] == NULL){
+					// we are using info_particle_system_coordinate
 					for (int i = 0; i < kMAXCONTROLPOINTS; ++i)
 					{
-					CBaseEntity *pOnEntity = m_hControlPointEnts[i].Get();
+						ParticleProp()->AddControlPoint(pEffect, i + 1, this, PATTACH_WORLDORIGIN, 0, m_vControlPointVecs[i] - GetAbsOrigin());
-					if ( pOnEntity )
-					{
-						ParticleProp()->AddControlPoint( pEffect, i + 1, pOnEntity, PATTACH_ABSORIGIN_FOLLOW );
-					}
-
 						AssertMsg2(m_iControlPointParents[i] >= 0 && m_iControlPointParents[i] <= kMAXCONTROLPOINTS,
 							"Particle system specified bogus control point parent (%d) for point %d.",
 							m_iControlPointParents[i], i);
@@ -167,6 +166,25 @@ void C_ParticleSystem::ClientThink( void )
 							pEffect->SetControlPointParent(i + 1, m_iControlPointParents[i]);
 						}
 					}
+				}
+				else{
+					for (int i = 0; i < kMAXCONTROLPOINTS; ++i)
+					{
+						CBaseEntity* pOnEntity = m_hControlPointEnts[i].Get();
+						if (pOnEntity)
+						{
+							ParticleProp()->AddControlPoint(pEffect, i + 1, pOnEntity, PATTACH_ABSORIGIN_FOLLOW);
+						}
+						AssertMsg2(m_iControlPointParents[i] >= 0 && m_iControlPointParents[i] <= kMAXCONTROLPOINTS,
+							"Particle system specified bogus control point parent (%d) for point %d.",
+							m_iControlPointParents[i], i);
+
+						if (m_iControlPointParents[i] != 0)
+						{
+							pEffect->SetControlPointParent(i + 1, m_iControlPointParents[i]);
+						}
+					}
+				}
 
 				// NOTE: What we really want here is to compare our lifetime and that of our children and see if this delta is
 				//		 already past the end of it, denoting that we're finished.  In that case, just destroy us and be done. -- jdw

sp/src/game/server/particle_system.cpp

@@ -31,6 +31,7 @@ IMPLEMENT_SERVERCLASS_ST_NOBASE(CParticleSystem, DT_ParticleSystem)
 SendPropFloat(SENDINFO(m_flStartTime)),
 
 SendPropArray3(SENDINFO_ARRAY3(m_hControlPointEnts), SendPropEHandle(SENDINFO_ARRAY(m_hControlPointEnts))),
+SendPropArray3(SENDINFO_ARRAY3(m_vControlPointVecs), SendPropVector(SENDINFO_ARRAY(m_vControlPointVecs))),
 SendPropArray3(SENDINFO_ARRAY3(m_iControlPointParents), SendPropInt(SENDINFO_ARRAY(m_iControlPointParents), 3, SPROP_UNSIGNED)),
 SendPropBool(SENDINFO(m_bWeatherEffect)),
 END_SEND_TABLE()
@@ -119,6 +120,7 @@ BEGIN_DATADESC( CParticleSystem )
 DEFINE_KEYFIELD(m_iControlPointParents[6], FIELD_CHARACTER, "cpoint7_parent"),
 
 DEFINE_AUTO_ARRAY(m_hControlPointEnts, FIELD_EHANDLE),
+DEFINE_AUTO_ARRAY(m_vControlPointVecs, FIELD_VECTOR),
 
 DEFINE_INPUTFUNC(FIELD_VOID, "Start", InputStart),
 DEFINE_INPUTFUNC(FIELD_VOID, "Stop", InputStop),
@@ -131,6 +133,7 @@ BEGIN_DATADESC( CParticleSystem )
 END_DATADESC()
 
 LINK_ENTITY_TO_CLASS(info_particle_system, CParticleSystem);
+LINK_ENTITY_TO_CLASS(info_particle_system_coordinate, CParticleSystemCoordinate);
 
 //-----------------------------------------------------------------------------
 // Purpose: 
@@ -254,15 +257,27 @@ void CParticleSystem::InputDestroyImmediately( inputdata_t &inputdata )
 
 //-----------------------------------------------------------------------------
 // Purpose: Find each entity referred to by m_iszControlPointNames and 
-// resolve it into the corresponding slot in m_hControlPointEnts
+// resolve it into the corresponding slot in m_vControlPointVecs
 //-----------------------------------------------------------------------------
 void CParticleSystem::ReadControlPointEnts(void)
 {
 	for (int i = 0; i < kMAXCONTROLPOINTS; ++i)
 	{
+		if (UsesCoordinates()) {
+			float vecCoords[3];
+			if (m_iszControlPointNames[i] == NULL_STRING)
+				m_vControlPointVecs.Set(i, GetAbsOrigin()); // use self as default position
+			else{
+				// cast str to vector, add vector to array
+				const char* pszVector = STRING(m_iszControlPointNames[i]);
+				UTIL_StringToVector(vecCoords, pszVector);
+				m_vControlPointVecs.Set(i, Vector(vecCoords[0], vecCoords[1], vecCoords[2]));
+			}
+
+		}
+		else{
 			if (m_iszControlPointNames[i] == NULL_STRING)
 				continue;
-
 			CBaseEntity *pPointEnt = gEntList.FindEntityGeneric(NULL, STRING(m_iszControlPointNames[i]), this);
 			Assert(pPointEnt != NULL);
 			if (pPointEnt == NULL)
@@ -274,3 +289,4 @@ void CParticleSystem::ReadControlPointEnts( void )
 			m_hControlPointEnts.Set(i, pPointEnt);
 		}
 	}
+}

sp/src/game/server/particle_system.h

@@ -41,10 +41,12 @@ public:
 
 	enum { kMAXCONTROLPOINTS = 63 }; ///< actually one less than the total number of cpoints since 0 is assumed to be me
 
+	virtual bool UsesCoordinates(void) { return false; }
+
 protected:
 
 	/// Load up and resolve the entities that are supposed to be the control points 
-	void ReadControlPointEnts( void );
+	virtual void ReadControlPointEnts(void);
 
 	bool				m_bStartActive;
 	string_t			m_iszEffectName;
@@ -58,8 +60,19 @@ protected:
 
 	string_t			m_iszControlPointNames[kMAXCONTROLPOINTS];
 	CNetworkArray(EHANDLE, m_hControlPointEnts, kMAXCONTROLPOINTS);
+	CNetworkArray(Vector, m_vControlPointVecs, kMAXCONTROLPOINTS);
 	CNetworkArray(unsigned char, m_iControlPointParents, kMAXCONTROLPOINTS);
 	CNetworkVar(bool, m_bWeatherEffect);
 };
 
+//-----------------------------------------------------------------------------
+// Purpose: An entity that spawns and controls a particle system using coordinates. 
+//-----------------------------------------------------------------------------
+class CParticleSystemCoordinate : public CParticleSystem
+{
+	DECLARE_CLASS(CParticleSystemCoordinate, CParticleSystem);
+public:
+	virtual bool UsesCoordinates(void) { return true; }
+};
+
 #endif // PARTICLE_SYSTEM_H

sp/src/game/server/props.cpp

@@ -2853,8 +2853,16 @@ void CInteractableProp::Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_
 		m_pOutputAnimBegun.FireOutput(pActivator, this);
 	}
 
+	if (m_flCooldown == -1 && !m_bLocked){
+		m_flCooldownTime = 1e+30; // yeah we're not going to hit this any time soon
+	}
+	else if (m_flCooldown == -1){
+		m_flCooldownTime = gpGlobals->curtime + 1.0f; // 1s cooldown if locked
+	}
+	else{
 		m_flCooldownTime = gpGlobals->curtime + m_flCooldown;
 	}
+}
 
 //-----------------------------------------------------------------------------
 // Purpose: