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diff --git a/hammer/DispShore.h b/hammer/DispShore.h
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+++ b/hammer/DispShore.h
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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+//
+//=============================================================================
+
+#ifndef DISPSHORE_H
+#define DISPSHORE_H
+#pragma once
+
+#include "MapHelper.h"
+#include "MapFace.h"
+#include "MapOverlay.h"
+#include "MapOverlayTrans.h"
+
+class CHelperInfo;
+class CMapEntity;
+
+struct ShoreFaceData_t
+{
+	CMapFace	*m_pFaces[4];			// The hammer faces the points reside on.
+	Vector		m_vecPoints[4];			// The shore face points.
+	Vector2D	m_vecTexCoords[4];		// The shore texture coordinates.
+	bool		m_bAdjWinding;
+};
+
+struct ShoreSegment_t
+{
+	Vector				m_vecPoints[2];				// Shore segment points.
+	Vector				m_vecNormals[2];			// Shore segment normals.
+	Vector2D			m_vecTexCoords[4];			// Shore segment texture coordinates.
+
+	EditDispHandle_t	m_hDisp;					// Displacement the shore segment was created from.
+	float				m_flWaterZ;
+
+	ShoreFaceData_t		m_WorldFace;
+	ShoreFaceData_t		m_WaterFace;
+
+	// ?
+	Vector				m_vecCenter;
+	unsigned int		m_iStartPoint;
+	bool				m_bTouch;
+	bool				m_bCreated;
+};
+
+struct Shoreline_t
+{
+	int							m_nShorelineId;
+	CUtlVector<ShoreSegment_t>	m_aSegments;		// List of shore segments making up the shore line.
+	CUtlVector<int>				m_aSortedSegments;	// List of shore segments sorted (for connectivity).
+	CUtlVector<CMapOverlay>		m_aOverlays;
+	float						m_flLength;			// Total length of the shore line.
+	ShoreEntityData_t			m_ShoreData;
+
+	Shoreline_t();
+	~Shoreline_t();
+	void AddSegment( Vector &vecPoint0, Vector &vecPoint1, Vector &vecNormal, float flWaterZ, CMapFace *pWaterFace, EditDispHandle_t hDisp );
+};
+
+class IDispShoreManager
+{
+public:
+
+	virtual bool		Init( void ) = 0;
+	virtual void		Shutdown( void ) = 0;
+
+	// Shoreline management.
+	virtual int			GetShorelineCount( void ) = 0;
+	virtual Shoreline_t *GetShoreline( int nShorelineId ) = 0;
+	virtual void		AddShoreline( int nShorelineId ) = 0;
+	virtual void		RemoveShoreline( int nShorelineId ) = 0;
+	virtual void		BuildShoreline( int nShorelineId, CUtlVector<CMapFace*> &aFaces, CUtlVector<CMapFace*> &aWaterFaces ) = 0;
+
+	virtual void		Draw( CRender3D *pRender ) = 0;
+	virtual void		DebugDraw( CRender3D *pRender ) = 0;
+};
+
+IDispShoreManager *GetShoreManager( void );
+
+#endif // DISPSHORE_H
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