//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
//
// Purpose: 
//
// $NoKeywords: $
//
//=============================================================================//
//
//  cdll_int.h
//
// 4-23-98  
// JOHN:  client dll interface declarations
//

#ifndef IVDEBUGOVERLAY_H
#define IVDEBUGOVERLAY_H

#ifdef _WIN32
#pragma once
#endif

class Vector;

#define VDEBUG_OVERLAY_INTERFACE_VERSION	"VDebugOverlay003"

// When used as a duration by a server-side NDebugOverlay:: call, 
// causes the overlay to persist until the next server update.
#define NDEBUG_PERSIST_TILL_NEXT_SERVER (0.01023f)

class OverlayText_t;

abstract_class IVDebugOverlay
{
public:
	virtual void AddEntityTextOverlay(int ent_index, int line_offset, float duration, int r, int g, int b, int a, const char *format, ...) = 0;
	virtual void AddBoxOverlay(const Vector& origin, const Vector& mins, const Vector& max, QAngle const& orientation, int r, int g, int b, int a, float duration) = 0;
	virtual void AddTriangleOverlay(const Vector& p1, const Vector& p2, const Vector& p3, int r, int g, int b, int a, bool noDepthTest, float duration) = 0;
	virtual void AddLineOverlay(const Vector& origin, const Vector& dest, int r, int g, int b,bool noDepthTest, float duration) = 0;
	virtual void AddTextOverlay(const Vector& origin, float duration, const char *format, ...) = 0;
	virtual void AddTextOverlay(const Vector& origin, int line_offset, float duration, const char *format, ...) = 0;
	virtual void AddScreenTextOverlay(float flXPos, float flYPos,float flDuration, int r, int g, int b, int a, const char *text) = 0;
	virtual void AddSweptBoxOverlay(const Vector& start, const Vector& end, const Vector& mins, const Vector& max, const QAngle & angles, int r, int g, int b, int a, float flDuration) = 0;
	virtual void AddGridOverlay(const Vector& origin) = 0;
	virtual int ScreenPosition(const Vector& point, Vector& screen) = 0;
	virtual int ScreenPosition(float flXPos, float flYPos, Vector& screen) = 0;

	virtual OverlayText_t *GetFirst( void ) = 0;
	virtual OverlayText_t *GetNext( OverlayText_t *current ) = 0;
	virtual void ClearDeadOverlays( void ) = 0;
	virtual void ClearAllOverlays() = 0;

	virtual void AddTextOverlayRGB(const Vector& origin, int line_offset, float duration, float r, float g, float b, float alpha, const char *format, ...) = 0;
	virtual void AddTextOverlayRGB(const Vector& origin, int line_offset, float duration, int r, int g, int b, int a, const char *format, ...) = 0;

	virtual void AddLineOverlayAlpha(const Vector& origin, const Vector& dest, int r, int g, int b, int a, bool noDepthTest, float duration) = 0;
	virtual void AddBoxOverlay2( const Vector& origin, const Vector& mins, const Vector& max, QAngle const& orientation, const Color& faceColor, const Color& edgeColor, float duration ) = 0;

private:
	inline void AddTextOverlay(const Vector& origin, int line_offset, float duration, int r, int g, int b, int a, const char *format, ...) {} /* catch improper use of bad interface. Needed because '0' duration can be resolved by compiler to NULL format string (i.e., compiles but calls wrong function) */
};


#endif // IVDEBUGOVERLAY_H
