halflife-sdk-steam/dlls/spectator.cpp

/***
*
*	Copyright (c) 1996-2002, Valve LLC. All rights reserved.
*	
*	This product contains software technology licensed from Id 
*	Software, Inc. ("Id Technology").  Id Technology (c) 1996 Id Software, Inc. 
*	All Rights Reserved.
*
*   Use, distribution, and modification of this source code and/or resulting
*   object code is restricted to non-commercial enhancements to products from
*   Valve LLC.  All other use, distribution, or modification is prohibited
*   without written permission from Valve LLC.
*
****/
// CBaseSpectator

// YWB:  UNDONE

// Spectator functions
// 
#include	"extdll.h"
#include	"util.h"
#include	"cbase.h"
#include	"monsters.h"
#include	"spectator.h"

/*
===========
SpectatorConnect

called when a spectator connects to a server
============
*/
void CBaseSpectator::SpectatorConnect(void)
{
	pev->flags = FL_SPECTATOR;
	pev->solid = SOLID_NOT;
	pev->movetype = MOVETYPE_NOCLIP;
	
	m_pGoalEnt = NULL;
}

/*
===========
SpectatorDisconnect

called when a spectator disconnects from a server
============
*/
void CBaseSpectator::SpectatorDisconnect(void)
{
}

/*
================
SpectatorImpulseCommand

Called by SpectatorThink if the spectator entered an impulse
================
*/
void CBaseSpectator::SpectatorImpulseCommand(void)
{
	static edict_t	*pGoal		= NULL;
	edict_t         *pPreviousGoal;
	edict_t         *pCurrentGoal;
	BOOL			bFound;
	
	switch (pev->impulse)
	{
	case 1:
		// teleport the spectator to the next spawn point
		// note that if the spectator is tracking, this doesn't do
		// much
		pPreviousGoal = pGoal;
		pCurrentGoal  = pGoal;
		// Start at the current goal, skip the world, and stop if we looped
		//  back around

		bFound = FALSE;
		while (1)
		{
			pCurrentGoal = FIND_ENTITY_BY_CLASSNAME(pCurrentGoal, "info_player_deathmatch");
			// Looped around, failure
			if (pCurrentGoal == pPreviousGoal)
			{
				ALERT(at_console, "Could not find a spawn spot.\n");
				break;
			}
			// Found a non-world entity, set success, otherwise, look for the next one.
			if (!FNullEnt(pCurrentGoal))
			{
				bFound = TRUE;
				break;
			}
		}

		if (!bFound)  // Didn't find a good spot.
			break;
		
		pGoal = pCurrentGoal;
		UTIL_SetOrigin( pev, pGoal->v.origin );
		pev->angles = pGoal->v.angles;
		pev->fixangle = FALSE;
		break;
	default:
		ALERT(at_console, "Unknown spectator impulse\n");
		break;
	}

	pev->impulse = 0;
}

/*
================
SpectatorThink

Called every frame after physics are run
================
*/
void  CBaseSpectator::SpectatorThink(void)
{
	if (!(pev->flags & FL_SPECTATOR))
	{
		pev->flags = FL_SPECTATOR;
	}

	pev->solid	   = SOLID_NOT;
	pev->movetype  = MOVETYPE_NOCLIP;

	if (pev->impulse)
		SpectatorImpulseCommand();
}

/*
===========
Spawn

  Called when spectator is initialized:
  UNDONE:  Is this actually being called because spectators are not allocated in normal fashion?
============
*/
void CBaseSpectator::Spawn()
{
	pev->flags = FL_SPECTATOR;
	pev->solid = SOLID_NOT;
	pev->movetype = MOVETYPE_NOCLIP;
	
	m_pGoalEnt = NULL;
}