halflife-photomode/dlls/h_cycler.cpp

/***
*
*	Copyright (c) 1996-2001, 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.
*
****/
/*

===== h_cycler.cpp ========================================================

  The Halflife Cycler Monsters

*/

#include "extdll.h"
#include "util.h"
#include "cbase.h"
#include "monsters.h"
#include "animation.h"
#include "weapons.h"
#include "player.h"

class CCycler : public CBaseMonster
{
public:
	void GenericCyclerSpawn(const char* szModel, Vector vecMin, Vector vecMax);
	int ObjectCaps() override { return (CBaseEntity::ObjectCaps() | FCAP_IMPULSE_USE); }
	bool TakeDamage(entvars_t* pevInflictor, entvars_t* pevAttacker, float flDamage, int bitsDamageType) override;
	void Spawn() override;
	void Think() override;
	//void Pain( float flDamage );
	void Use(CBaseEntity* pActivator, CBaseEntity* pCaller, USE_TYPE useType, float value) override;

	// Don't treat as a live target
	bool IsAlive() override { return false; }
	bool IsAllowedToSpeak() { return true; }

	bool Save(CSave& save) override;
	bool Restore(CRestore& restore) override;
	static TYPEDESCRIPTION m_SaveData[];

	bool m_animate;
};

TYPEDESCRIPTION CCycler::m_SaveData[] =
	{
		DEFINE_FIELD(CCycler, m_animate, FIELD_BOOLEAN),
};

IMPLEMENT_SAVERESTORE(CCycler, CBaseMonster);


//
// we should get rid of all the other cyclers and replace them with this.
//
class CGenericCycler : public CCycler
{
public:
	void Spawn() override { GenericCyclerSpawn(STRING(pev->model), Vector(-16, -16, 0), Vector(16, 16, 72)); }
};
LINK_ENTITY_TO_CLASS(cycler, CGenericCycler);



// Probe droid imported for tech demo compatibility
//
// PROBE DROID
//
class CCyclerProbe : public CCycler
{
public:
	void Spawn() override;
};
LINK_ENTITY_TO_CLASS(cycler_prdroid, CCyclerProbe);
void CCyclerProbe::Spawn()
{
	pev->origin = pev->origin + Vector(0, 0, 16);
	GenericCyclerSpawn("models/prdroid.mdl", Vector(-16, -16, -16), Vector(16, 16, 16));
}



// Cycler member functions

void CCycler::GenericCyclerSpawn(const char* szModel, Vector vecMin, Vector vecMax)
{
	if (!szModel || '\0' == *szModel)
	{
		ALERT(at_error, "cycler at %.0f %.0f %0.f missing modelname", pev->origin.x, pev->origin.y, pev->origin.z);
		REMOVE_ENTITY(ENT(pev));
		return;
	}

	pev->classname = MAKE_STRING("cycler");
	PRECACHE_MODEL(szModel);
	SET_MODEL(ENT(pev), szModel);

	CCycler::Spawn();

	UTIL_SetSize(pev, vecMin, vecMax);
}


void CCycler::Spawn()
{
	InitBoneControllers();
	pev->solid = SOLID_SLIDEBOX;
	pev->movetype = MOVETYPE_NONE;
	pev->takedamage = DAMAGE_YES;
	pev->effects = 0;
	pev->health = 80000; // no cycler should die
	pev->yaw_speed = 5;
	pev->ideal_yaw = pev->angles.y;
	ChangeYaw(360);

	m_flFrameRate = 75;
	m_flGroundSpeed = 0;

	pev->nextthink += 1.0;

	ResetSequenceInfo();

	if (pev->sequence != 0 || pev->frame != 0)
	{
		m_animate = false;
		pev->framerate = 0;
	}
	else
	{
		m_animate = true;
	}
}




//
// cycler think
//
void CCycler::Think()
{
	pev->nextthink = gpGlobals->time + 0.1;

	if (m_animate)
	{
		StudioFrameAdvance();
	}
	if (m_fSequenceFinished && !m_fSequenceLoops)
	{
		// ResetSequenceInfo();
		// hack to avoid reloading model every frame
		pev->animtime = gpGlobals->time;
		pev->framerate = 1.0;
		m_fSequenceFinished = false;
		m_flLastEventCheck = gpGlobals->time;
		pev->frame = 0;
		if (!m_animate)
			pev->framerate = 0.0; // FIX: don't reset framerate
	}
}

//
// CyclerUse - starts a rotation trend
//
void CCycler::Use(CBaseEntity* pActivator, CBaseEntity* pCaller, USE_TYPE useType, float value)
{
	m_animate = !m_animate;
	if (m_animate)
		pev->framerate = 1.0;
	else
		pev->framerate = 0.0;
}

//
// CyclerPain , changes sequences when shot
//
//void CCycler:: Pain( float flDamage )
bool CCycler::TakeDamage(entvars_t* pevInflictor, entvars_t* pevAttacker, float flDamage, int bitsDamageType)
{
	if (m_animate)
	{
		pev->sequence++;

		ResetSequenceInfo();

		if (m_flFrameRate == 0.0)
		{
			pev->sequence = 0;
			ResetSequenceInfo();
		}
		pev->frame = 0;
	}
	else
	{
		pev->framerate = 1.0;
		StudioFrameAdvance(0.1);
		pev->framerate = 0;
		ALERT(at_console, "sequence: %d, frame %.0f\n", pev->sequence, pev->frame);
	}

	return false;
}

class CCyclerSprite : public CBaseEntity
{
public:
	void Spawn() override;
	void Think() override;
	void Use(CBaseEntity* pActivator, CBaseEntity* pCaller, USE_TYPE useType, float value) override;
	int ObjectCaps() override { return (CBaseEntity::ObjectCaps() | FCAP_IMPULSE_USE); }
	bool TakeDamage(entvars_t* pevInflictor, entvars_t* pevAttacker, float flDamage, int bitsDamageType) override;
	void Animate(float frames);

	bool Save(CSave& save) override;
	bool Restore(CRestore& restore) override;
	static TYPEDESCRIPTION m_SaveData[];

	inline bool ShouldAnimate() { return m_animate && m_maxFrame > 1.0; }
	bool m_animate;
	float m_lastTime;
	float m_maxFrame;
};

LINK_ENTITY_TO_CLASS(cycler_sprite, CCyclerSprite);

TYPEDESCRIPTION CCyclerSprite::m_SaveData[] =
	{
		DEFINE_FIELD(CCyclerSprite, m_animate, FIELD_BOOLEAN),
		DEFINE_FIELD(CCyclerSprite, m_lastTime, FIELD_TIME),
		DEFINE_FIELD(CCyclerSprite, m_maxFrame, FIELD_FLOAT),
};

IMPLEMENT_SAVERESTORE(CCyclerSprite, CBaseEntity);


void CCyclerSprite::Spawn()
{
	pev->solid = SOLID_SLIDEBOX;
	pev->movetype = MOVETYPE_NONE;
	pev->takedamage = DAMAGE_YES;
	pev->effects = 0;

	pev->frame = 0;
	pev->nextthink = gpGlobals->time + 0.1;
	m_animate = true;
	m_lastTime = gpGlobals->time;

	PRECACHE_MODEL((char*)STRING(pev->model));
	SET_MODEL(ENT(pev), STRING(pev->model));

	m_maxFrame = (float)MODEL_FRAMES(pev->modelindex) - 1;
}


void CCyclerSprite::Think()
{
	if (ShouldAnimate())
		Animate(pev->framerate * (gpGlobals->time - m_lastTime));

	pev->nextthink = gpGlobals->time + 0.1;
	m_lastTime = gpGlobals->time;
}


void CCyclerSprite::Use(CBaseEntity* pActivator, CBaseEntity* pCaller, USE_TYPE useType, float value)
{
	m_animate = !m_animate;
	ALERT(at_console, "Sprite: %s\n", STRING(pev->model));
}


bool CCyclerSprite::TakeDamage(entvars_t* pevInflictor, entvars_t* pevAttacker, float flDamage, int bitsDamageType)
{
	if (m_maxFrame > 1.0)
	{
		Animate(1.0);
	}
	return true;
}

void CCyclerSprite::Animate(float frames)
{
	pev->frame += frames;
	if (m_maxFrame > 0)
		pev->frame = fmod(pev->frame, m_maxFrame);
}







class CWeaponCycler : public CBasePlayerWeapon
{
public:
	void Spawn() override;
	int iItemSlot() override { return 1; }
	bool GetItemInfo(ItemInfo* p) override { return false; }

	void PrimaryAttack() override;
	void SecondaryAttack() override;
	bool Deploy() override;
	void Holster() override;
	int m_iszModel;
	int m_iModel;
};
LINK_ENTITY_TO_CLASS(cycler_weapon, CWeaponCycler);


void CWeaponCycler::Spawn()
{
	pev->solid = SOLID_SLIDEBOX;
	pev->movetype = MOVETYPE_NONE;

	PRECACHE_MODEL((char*)STRING(pev->model));
	SET_MODEL(ENT(pev), STRING(pev->model));
	m_iszModel = pev->model;
	m_iModel = pev->modelindex;

	UTIL_SetOrigin(pev, pev->origin);
	UTIL_SetSize(pev, Vector(-16, -16, 0), Vector(16, 16, 16));
	SetTouch(&CWeaponCycler::DefaultTouch);
}



bool CWeaponCycler::Deploy()
{
	m_pPlayer->pev->viewmodel = m_iszModel;
	m_pPlayer->m_flNextAttack = UTIL_WeaponTimeBase() + 1.0;
	SendWeaponAnim(0);
	m_iClip = 0;
	return true;
}


void CWeaponCycler::Holster()
{
	m_pPlayer->m_flNextAttack = UTIL_WeaponTimeBase() + 0.5;
}


void CWeaponCycler::PrimaryAttack()
{

	SendWeaponAnim(pev->sequence);

	m_flNextPrimaryAttack = gpGlobals->time + 0.3;
}


void CWeaponCycler::SecondaryAttack()
{
	float flFrameRate, flGroundSpeed;

	pev->sequence = (pev->sequence + 1) % 8;

	pev->modelindex = m_iModel;
	void* pmodel = GET_MODEL_PTR(ENT(pev));
	GetSequenceInfo(pmodel, pev, &flFrameRate, &flGroundSpeed);
	pev->modelindex = 0;

	if (flFrameRate == 0.0)
	{
		pev->sequence = 0;
	}

	SendWeaponAnim(pev->sequence);

	m_flNextSecondaryAttack = gpGlobals->time + 0.3;
}



// Flaming Wreakage
class CWreckage : public CBaseMonster
{
	bool Save(CSave& save) override;
	bool Restore(CRestore& restore) override;
	static TYPEDESCRIPTION m_SaveData[];

	void Spawn() override;
	void Precache() override;
	void Think() override;

	float m_flStartTime;
};
TYPEDESCRIPTION CWreckage::m_SaveData[] =
	{
		DEFINE_FIELD(CWreckage, m_flStartTime, FIELD_TIME),
};
IMPLEMENT_SAVERESTORE(CWreckage, CBaseMonster);


LINK_ENTITY_TO_CLASS(cycler_wreckage, CWreckage);

void CWreckage::Spawn()
{
	pev->solid = SOLID_NOT;
	pev->movetype = MOVETYPE_NONE;
	pev->takedamage = 0;
	pev->effects = 0;

	pev->frame = 0;
	pev->nextthink = gpGlobals->time + 0.1;

	if (!FStringNull(pev->model))
	{
		PRECACHE_MODEL((char*)STRING(pev->model));
		SET_MODEL(ENT(pev), STRING(pev->model));
	}
	// pev->scale = 5.0;

	m_flStartTime = gpGlobals->time;
}

void CWreckage::Precache()
{
	if (!FStringNull(pev->model))
		PRECACHE_MODEL((char*)STRING(pev->model));
}

void CWreckage::Think()
{
	StudioFrameAdvance();
	pev->nextthink = gpGlobals->time + 0.2;

	if (0 != pev->dmgtime)
	{
		if (pev->dmgtime < gpGlobals->time)
		{
			UTIL_Remove(this);
			return;
		}
		else if (RANDOM_FLOAT(0, pev->dmgtime - m_flStartTime) > pev->dmgtime - gpGlobals->time)
		{
			return;
		}
	}

	Vector VecSrc;

	VecSrc.x = RANDOM_FLOAT(pev->absmin.x, pev->absmax.x);
	VecSrc.y = RANDOM_FLOAT(pev->absmin.y, pev->absmax.y);
	VecSrc.z = RANDOM_FLOAT(pev->absmin.z, pev->absmax.z);

	MESSAGE_BEGIN(MSG_PVS, SVC_TEMPENTITY, VecSrc);
	WRITE_BYTE(TE_SMOKE);
	WRITE_COORD(VecSrc.x);
	WRITE_COORD(VecSrc.y);
	WRITE_COORD(VecSrc.z);
	WRITE_SHORT(g_sModelIndexSmoke);
	WRITE_BYTE(RANDOM_LONG(0, 49) + 50); // scale * 10
	WRITE_BYTE(RANDOM_LONG(0, 3) + 8);	 // framerate
	MESSAGE_END();
}