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game/shared/tf/ihasbuildpoints.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#ifndef IHASBUILDPOINTS_H
+#define IHASBUILDPOINTS_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+class CBaseObject;
+
+// Derive from this interface if your entity can have objects placed on build points on it
+class IHasBuildPoints
+{
+public:
+	// Tell me how many build points you have
+	virtual int			GetNumBuildPoints( void ) const = 0;
+
+	// Give me the origin & angles of the specified build point
+	virtual bool		GetBuildPoint( int iPoint, Vector &vecOrigin, QAngle &vecAngles ) = 0;
+
+	// If the build point wants to parent built objects to an attachment point on the entity,
+	// it'll return a value >= 1 here specifying which attachment to sit on.
+	virtual int			GetBuildPointAttachmentIndex( int iPoint ) const = 0;
+
+	// Can I build the specified object on the specified build point?
+	virtual bool		CanBuildObjectOnBuildPoint( int iPoint, int iObjectType ) = 0;
+
+	// I've finished building the specified object on the specified build point
+	virtual void		SetObjectOnBuildPoint( int iPoint, CBaseObject *pObject ) = 0;
+
+	// Get the number of objects build on this entity
+	virtual int			GetNumObjectsOnMe( void ) = 0;
+
+	// Get the first object of type, return NULL if no such type available
+	virtual CBaseObject *GetObjectOfTypeOnMe( int iObjectType ) = 0;
+
+	// Remove all objects built on me
+	virtual void		RemoveAllObjects( void ) = 0;
+
+	// Return the maximum distance that this entity's build points can be snapped to
+	virtual float		GetMaxSnapDistance( int iPoint ) = 0;
+
+	// Return true if it's possible that build points on this entity may move in local space (i.e. due to animation)
+	virtual bool		ShouldCheckForMovement( void ) = 0;
+
+	// I've finished building the specified object on the specified build point
+	virtual int			FindObjectOnBuildPoint( CBaseObject *pObject ) = 0;
+};
+
+#endif // IHASBUILDPOINTS_H