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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================//
#ifndef D3DAPP_H
#define D3DAPP_H
#ifdef _WIN32
#pragma once
#endif
#include <d3d8.h>
// Globals for the app to access. These are valid whenever the app is called.
extern IDirect3D8 *g_pDirect3D;
extern IDirect3DDevice8 *g_pDevice;
// Special keys.
#define APPKEY_LBUTTON -1
#define APPKEY_RBUTTON -2
#define APPKEY_SPACE -3
// ------------------------------------------------------------------------------------ //
// Functions for the app to provide.
// ------------------------------------------------------------------------------------ //
void AppInit();
// Called to update or render the view as often as possible. If bInvalidRect is true,
// then you should always render, so the window's contents are valid.
void AppRender( float frametime, float mouseDeltaX, float mouseDeltaY, bool bInvalidRect );
// Release any D3D objects you have here - a resize will happen.
void AppPreResize();
void AppPostResize();
void AppExit( );
void AppKey( int key, int down );
void AppChar( int key );
// ------------------------------------------------------------------------------------ //
// Functions the app can call.
// ------------------------------------------------------------------------------------ //
// Show an error dialog and quit.
bool Sys_Error(const char *pMsg, ...);
// Shutdown the app. AppExit() will be called.
void Sys_Quit();
void Sys_SetWindowText( char const *pMsg, ... );
// Key can be an ASCII key code or an APPKEY_ define.
bool Sys_GetKeyState( int key );
void Sys_Sleep( int ms );
// Does the app have the focus?
bool Sys_HasFocus();
char const* Sys_FindArg( char const *pArg, char const *pDefault=NULL );
int Sys_FindArgInt( char const *pArg, int defaultVal = -1 );
int Sys_ScreenWidth();
int Sys_ScreenHeight();
#endif // D3DAPP_H
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