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Torque/SDK/lib/maxsdk40/Osnaphit.h

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+/**********************************************************************
+ 	FILE: osnaphit.h
+
+	DESCRIPTION:  Defines the classes which are passed from the osnaps
+					to the manager.
+
+	CREATED BY: John Hutchinson
+	HISTORY: December 9, 1996
+	Copyright (c) 1994, All Rights Reserved.
+ **********************************************************************/
+#ifndef _OSNAPHIT_H_
+#define _OSNAPHIT_H_
+
+#include "baseinterface.h"
+
+class Osnap;
+class HitMesh;
+class OsnapMarker;
+
+class OsnapHit : public BaseInterfaceServer
+{
+	friend class OsnapManager;
+	friend class Osnap;
+	friend class TypedHit;
+public:
+	CoreExport OsnapHit(Point3 p3, Osnap* s, int sub, HitMesh *m);
+	CoreExport OsnapHit(Point3 pt);
+	CoreExport OsnapHit(const OsnapHit& h);
+	virtual CoreExport OsnapHit& operator=(const OsnapHit& h);
+	virtual CoreExport ~OsnapHit();
+	virtual CoreExport OsnapHit* clone();
+
+	void setscreendata(IPoint3 screen3, int len);
+
+	//////////////////////////////////////////////////////////////////////
+	// Display Methods
+	//////////////////////////////////////////////////////////////////////
+	CoreExport virtual boolean display(ViewExp *vpt, TimeValue t, Point3 color,  \
+		int markersize, boolean markers = TRUE, boolean hilite = TRUE);
+	CoreExport void erase(ViewExp *vpt, TimeValue t) const; // the hit can erase itself
+	CoreExport void GetViewportRect(TimeValue t,ViewExp *vpt,Rect *rect, int marksize)const;
+
+	//////////////////////////////////////////////////////////////////////
+	// Accessor Methods
+	//////////////////////////////////////////////////////////////////////
+	CoreExport Point3 GetHitpoint(){return hitpoint;};
+	CoreExport Point3 GetWorldHitpoint(){return worldpoint;};
+	CoreExport IPoint3 GetHitscreen(){return m_hitscreen;};
+	CoreExport int GetSubsnap(){return subsnap;}
+	CoreExport POINT GetCursor(){return m_cursor;}
+	INode *GetNode(){return node;}
+	void Dump()const;
+
+	//////////////////////////////////////////////////////////////////////
+	// Operator Methods
+	//////////////////////////////////////////////////////////////////////
+	//define comparators so we can sort a list of these
+	CoreExport BOOL operator<(OsnapHit& hit);
+	CoreExport BOOL operator>(OsnapHit& hit);
+
+public:
+	void Update(TimeValue t);
+	CoreExport Point3 ReEvaluate(TimeValue t);
+	virtual bool IsWorldSpaceHit(){return false;}
+
+
+private: //data
+	Point3 hitpoint; // the hit location in object space
+	Point3 worldpoint; // the hit location in world space
+	IPoint3 m_hitscreen; // the hit location in screen space
+	POINT m_cursor;//the position of the cursor when this guy was recorded
+	int m_len; //The distace from the cursor
+	int m_z_depth; //The depth in z space
+	BOOL m_complete; //indicates whether the screendata has been set
+	Osnap*  snap; //the snap which made this hit
+	int subsnap; //the subsnap index that made this hit
+	OsnapMarker *m_pmarker; //a pointer to this snaps marker
+
+	INode* node;// the node which got hit
+	HitMesh *hitmesh;//a mesh used to hilite the topolgy we hit
+
+	ViewExp *m_vpt;//the viewport which was active
+
+	BOOL m_invisible;//this guy won't display itself
+};
+
+//a class to hold a list of object space points for highlighting the geometry
+class HitMesh 
+{
+private:
+	int m_numverts;
+	Point3 *m_pverts;
+	static long m_cref;
+public:
+	CoreExport HitMesh();
+	CoreExport ~HitMesh();
+	CoreExport HitMesh(const HitMesh& h);
+	CoreExport HitMesh(int n);
+	Point3 operator[](int i){return m_pverts[i];}
+	int getNumVerts(){return m_numverts;}
+	void setNumVerts(int n){
+		if(m_pverts != NULL)
+			delete [] m_pverts;
+		m_numverts = n;
+		m_pverts = new Point3[n];
+	}
+	void setVert(int i, const Point3 &xyz){ m_pverts[i] = xyz; }	
+	Point3& getVert(int i){return m_pverts[i];}
+	Point3* getVertPtr(){return m_pverts;}
+};
+
+
+class TypedHit: public OsnapHit
+{
+public:
+	TypedHit(Point3 pt);
+	virtual boolean display(ViewExp *vpt, TimeValue t, Point3 color,  \
+		int markersize, boolean markers = TRUE, boolean hilite = TRUE);
+	virtual bool IsWorldSpaceHit(){return true;}
+};
+#endif //_OSNAPHIT_H