Add CBasePlayer::CheckTimeBasedDamage hook

[RauliTop]

Useful hook to change TimeBasedDamages like Paralyze, Poison, Radiation, Acid...
We can take away health with set_user_health to apply damage

ReGameDLL_CS/regamedll/dlls/player.cpp

Lines 4690 to 4794 in f050be7

	// If player is taking time based damage, continue doing damage to player -
	// this simulates the effect of being poisoned, gassed, dosed with radiation etc -
	// anything that continues to do damage even after the initial contact stops.
	// Update all time based damage counters, and shut off any that are done.
	// The m_bitsDamageType bit MUST be set if any damage is to be taken.
	// This routine will detect the initial on value of the m_bitsDamageType
	// and init the appropriate counter. Only processes damage every second.
	void CBasePlayer::CheckTimeBasedDamage()
	{
	int i;
	byte bDuration = 0;
	if (!(m_bitsDamageType & DMG_TIMEBASED))
	return;
	// only check for time based damage approx. every 2 seconds
	#ifdef REGAMEDLL_FIXES
	if (Q_abs(gpGlobals->time - m_tbdPrev) < 2.0f)
	#else
	if (Q_abs(int64(gpGlobals->time - m_tbdPrev)) < 2.0f)
	#endif
	return;
	m_tbdPrev = gpGlobals->time;
	for (i = 0; i < ITBD_END; i++)
	{
	// make sure bit is set for damage type
	if (m_bitsDamageType & (DMG_PARALYZE << i))
	{
	switch (i)
	{
	case ITBD_PARALLYZE:
	// UNDONE - flag movement as half-speed
	bDuration = PARALYZE_DURATION;
	break;
	case ITBD_NERVE_GAS:
	bDuration = NERVEGAS_DURATION;
	break;
	case ITBD_POISON:
	{
	TakeDamage(pev, pev, POISON_DAMAGE, DMG_GENERIC);
	bDuration = POISON_DURATION;
	break;
	}
	case ITBD_DROWN_RECOVER:
	{
	// NOTE: this hack is actually used to RESTORE health
	// after the player has been drowning and finally takes a breath
	if (m_idrowndmg > m_idrownrestored)
	{
	int idif = Q_min(m_idrowndmg - m_idrownrestored, 10);
	TakeHealth(idif, DMG_GENERIC);
	m_idrownrestored += idif;
	}
	// get up to 5*10 = 50 points back
	bDuration = 4;
	break;
	}
	case ITBD_RADIATION:
	bDuration = RADIATION_DURATION;
	break;
	case ITBD_ACID:
	bDuration = ACID_DURATION;
	break;
	case ITBD_SLOW_BURN:
	bDuration = SLOWBURN_DURATION;
	break;
	case ITBD_SLOW_FREEZE:
	bDuration = SLOWFREEZE_DURATION;
	break;
	default:
	bDuration = 0;
	break;
	}
	if (m_rgbTimeBasedDamage[i])
	{
	// use up an antitoxin on poison or nervegas after a few seconds of damage
	if ((i == ITBD_NERVE_GAS && m_rgbTimeBasedDamage[i] < NERVEGAS_DURATION) || (i == ITBD_POISON && m_rgbTimeBasedDamage[i] < POISON_DURATION))
	{
	if (m_rgItems[ITEM_ID_ANTIDOTE])
	{
	m_rgbTimeBasedDamage[i] = 0;
	m_rgItems[ITEM_ID_ANTIDOTE]--;
	SetSuitUpdate("!HEV_HEAL4", SUIT_SENTENCE, SUIT_REPEAT_OK);
	}
	}
	// decrement damage duration, detect when done.
	if (!m_rgbTimeBasedDamage[i] || --m_rgbTimeBasedDamage[i] == 0)
	{
	m_rgbTimeBasedDamage[i] = 0;
	// if we're done, clear damage bits
	m_bitsDamageType &= ~(DMG_PARALYZE << i);
	}
	}
	else
	// first time taking this damage type - init damage duration
	m_rgbTimeBasedDamage[i] = bDuration;
	}
	}
	}

Also, commented here: dreamstalker/rehlds#906