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game/server/pathcorner.cpp

@@ -0,0 +1,142 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Used to create a path that can be followed by NPCs and trains.
+//
+//=============================================================================//
+
+#include "cbase.h"
+#include "trains.h"
+#include "entitylist.h"
+#include "ndebugoverlay.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+class CPathCorner : public CPointEntity
+{
+	DECLARE_CLASS( CPathCorner, CPointEntity );
+public:
+
+	void	Spawn( );
+	float	GetDelay( void ) { return m_flWait; }
+	int		DrawDebugTextOverlays(void);
+	void	DrawDebugGeometryOverlays(void);
+
+	// Input handlers	
+	void InputSetNextPathCorner( inputdata_t &inputdata );
+	void InputInPass( inputdata_t &inputdata );
+
+	DECLARE_DATADESC();
+
+private:
+	float			m_flWait;
+	COutputEvent	m_OnPass;
+};
+
+LINK_ENTITY_TO_CLASS( path_corner, CPathCorner );
+
+
+class CPathCornerCrash : public CPathCorner
+{
+	DECLARE_CLASS( CPathCornerCrash, CPathCorner );
+};
+
+LINK_ENTITY_TO_CLASS( path_corner_crash, CPathCornerCrash );
+
+
+BEGIN_DATADESC( CPathCorner )
+
+	DEFINE_KEYFIELD( m_flWait, FIELD_FLOAT, "wait" ),
+
+	// Inputs
+	DEFINE_INPUTFUNC( FIELD_STRING, "SetNextPathCorner", InputSetNextPathCorner),
+
+	// Internal inputs - not exposed in the FGD
+	DEFINE_INPUTFUNC( FIELD_VOID, "InPass", InputInPass ),
+
+	// Outputs
+	DEFINE_OUTPUT( m_OnPass, "OnPass"),
+
+END_DATADESC()
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CPathCorner::Spawn( void )
+{
+	ASSERTSZ(GetEntityName() != NULL_STRING, "path_corner without a targetname");
+}
+
+
+//------------------------------------------------------------------------------
+// Purpose: Sets the next path corner by name.
+// Input  : String ID name of next path corner.
+//-----------------------------------------------------------------------------
+void CPathCorner::InputSetNextPathCorner( inputdata_t &inputdata )
+{
+	m_target = inputdata.value.StringID();
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Fired by path followers as they pass the path corner.
+//-----------------------------------------------------------------------------
+void CPathCorner::InputInPass( inputdata_t &inputdata )
+{
+	m_OnPass.FireOutput( inputdata.pActivator, inputdata.pCaller, 0);
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Draw any debug text overlays
+// Output : Current text offset from the top
+//-----------------------------------------------------------------------------
+int CPathCorner::DrawDebugTextOverlays(void) 
+{
+	int text_offset = BaseClass::DrawDebugTextOverlays();
+
+	if (m_debugOverlays & OVERLAY_TEXT_BIT) 
+	{
+		// --------------
+		// Print Target
+		// --------------
+		char tempstr[255];
+		if (m_target!=NULL_STRING) 
+		{
+			Q_snprintf(tempstr,sizeof(tempstr),"Target: %s",STRING(m_target));
+		}
+		else
+		{
+			Q_strncpy(tempstr,"Target:   -  ",sizeof(tempstr));
+		}
+		EntityText(text_offset,tempstr,0);
+		text_offset++;
+	}
+	return text_offset;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Override base class to add display of paths
+//-----------------------------------------------------------------------------
+void CPathCorner::DrawDebugGeometryOverlays(void) 
+{
+	// ----------------------------------------------
+	// Draw line to next target is bbox is selected
+	// ----------------------------------------------
+	if (m_debugOverlays & (OVERLAY_BBOX_BIT|OVERLAY_ABSBOX_BIT))
+	{
+		NDebugOverlay::Box(GetAbsOrigin(), Vector(-10,-10,-10), Vector(10,10,10), 255, 100, 100, 0 ,0);
+
+		if (m_target != NULL_STRING)
+		{
+			CBaseEntity *pTarget = gEntList.FindEntityByName( NULL, m_target );
+			if (pTarget)
+			{
+				NDebugOverlay::Line(GetAbsOrigin(),pTarget->GetAbsOrigin(),255,100,100,true,0.0);
+			}
+		}
+	}
+	BaseClass::DrawDebugGeometryOverlays();
+}