/***
*
*	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.
*
****/
/*

===== mortar.cpp ========================================================

  the "LaBuznik" mortar device              

*/

#include "extdll.h"
#include "util.h"
#include "cbase.h"
#include "saverestore.h"
#include "weapons.h"
#include "decals.h"
#include "soundent.h"

class CFuncMortarField : public CBaseToggle
{
public:
	void Spawn() override;
	void Precache() override;
	bool KeyValue(KeyValueData* pkvd) override;

	// Bmodels don't go across transitions
	int ObjectCaps() override { return CBaseToggle::ObjectCaps() & ~FCAP_ACROSS_TRANSITION; }

	bool Save(CSave& save) override;
	bool Restore(CRestore& restore) override;

	static TYPEDESCRIPTION m_SaveData[];

	void EXPORT FieldUse(CBaseEntity* pActivator, CBaseEntity* pCaller, USE_TYPE useType, float value);

	int m_iszXController;
	int m_iszYController;
	float m_flSpread;
	float m_flDelay;
	int m_iCount;
	int m_fControl;
};

LINK_ENTITY_TO_CLASS(func_mortar_field, CFuncMortarField);

TYPEDESCRIPTION CFuncMortarField::m_SaveData[] =
	{
		DEFINE_FIELD(CFuncMortarField, m_iszXController, FIELD_STRING),
		DEFINE_FIELD(CFuncMortarField, m_iszYController, FIELD_STRING),
		DEFINE_FIELD(CFuncMortarField, m_flSpread, FIELD_FLOAT),
		DEFINE_FIELD(CFuncMortarField, m_flDelay, FIELD_FLOAT),
		DEFINE_FIELD(CFuncMortarField, m_iCount, FIELD_INTEGER),
		DEFINE_FIELD(CFuncMortarField, m_fControl, FIELD_INTEGER),
};

IMPLEMENT_SAVERESTORE(CFuncMortarField, CBaseToggle);


bool CFuncMortarField::KeyValue(KeyValueData* pkvd)
{
	if (FStrEq(pkvd->szKeyName, "m_iszXController"))
	{
		m_iszXController = ALLOC_STRING(pkvd->szValue);
		return true;
	}
	else if (FStrEq(pkvd->szKeyName, "m_iszYController"))
	{
		m_iszYController = ALLOC_STRING(pkvd->szValue);
		return true;
	}
	else if (FStrEq(pkvd->szKeyName, "m_flSpread"))
	{
		m_flSpread = atof(pkvd->szValue);
		return true;
	}
	else if (FStrEq(pkvd->szKeyName, "m_fControl"))
	{
		m_fControl = atoi(pkvd->szValue);
		return true;
	}
	else if (FStrEq(pkvd->szKeyName, "m_iCount"))
	{
		m_iCount = atoi(pkvd->szValue);
		return true;
	}

	return false;
}


// Drop bombs from above
void CFuncMortarField::Spawn()
{
	pev->solid = SOLID_NOT;
	SET_MODEL(ENT(pev), STRING(pev->model)); // set size and link into world
	pev->movetype = MOVETYPE_NONE;
	SetBits(pev->effects, EF_NODRAW);
	SetUse(&CFuncMortarField::FieldUse);
	Precache();
}


void CFuncMortarField::Precache()
{
	PRECACHE_SOUND("weapons/mortar.wav");
	PRECACHE_SOUND("weapons/mortarhit.wav");
	PRECACHE_MODEL("sprites/lgtning.spr");
}


// If connected to a table, then use the table controllers, else hit where the trigger is.
void CFuncMortarField::FieldUse(CBaseEntity* pActivator, CBaseEntity* pCaller, USE_TYPE useType, float value)
{
	Vector vecStart;

	vecStart.x = RANDOM_FLOAT(pev->mins.x, pev->maxs.x);
	vecStart.y = RANDOM_FLOAT(pev->mins.y, pev->maxs.y);
	vecStart.z = pev->maxs.z;

	switch (m_fControl)
	{
	case 0: // random
		break;
	case 1: // Trigger Activator
		if (pActivator != NULL)
		{
			vecStart.x = pActivator->pev->origin.x;
			vecStart.y = pActivator->pev->origin.y;
		}
		break;
	case 2: // table
	{
		CBaseEntity* pController;

		if (!FStringNull(m_iszXController))
		{
			pController = UTIL_FindEntityByTargetname(NULL, STRING(m_iszXController));
			if (pController != NULL)
			{
				vecStart.x = pev->mins.x + pController->pev->ideal_yaw * (pev->size.x);
			}
		}
		if (!FStringNull(m_iszYController))
		{
			pController = UTIL_FindEntityByTargetname(NULL, STRING(m_iszYController));
			if (pController != NULL)
			{
				vecStart.y = pev->mins.y + pController->pev->ideal_yaw * (pev->size.y);
			}
		}
	}
	break;
	}

	int pitch = RANDOM_LONG(95, 124);

	EMIT_SOUND_DYN(ENT(pev), CHAN_VOICE, "weapons/mortar.wav", 1.0, ATTN_NONE, 0, pitch);

	float t = 2.5;
	for (int i = 0; i < m_iCount; i++)
	{
		Vector vecSpot = vecStart;
		vecSpot.x += RANDOM_FLOAT(-m_flSpread, m_flSpread);
		vecSpot.y += RANDOM_FLOAT(-m_flSpread, m_flSpread);

		TraceResult tr;
		UTIL_TraceLine(vecSpot, vecSpot + Vector(0, 0, -1) * 4096, ignore_monsters, ENT(pev), &tr);

		edict_t* pentOwner = NULL;
		if (pActivator)
			pentOwner = pActivator->edict();

		CBaseEntity* pMortar = Create("monster_mortar", tr.vecEndPos, Vector(0, 0, 0), pentOwner);
		pMortar->pev->nextthink = gpGlobals->time + t;
		t += RANDOM_FLOAT(0.2, 0.5);

		if (i == 0)
			CSoundEnt::InsertSound(bits_SOUND_DANGER, tr.vecEndPos, 400, 0.3);
	}
}


class CMortar : public CGrenade
{
public:
	void Spawn() override;
	void Precache() override;

	void EXPORT MortarExplode();

	int m_spriteTexture;
};

LINK_ENTITY_TO_CLASS(monster_mortar, CMortar);

void CMortar::Spawn()
{
	pev->movetype = MOVETYPE_NONE;
	pev->solid = SOLID_NOT;

	pev->dmg = 200;

	SetThink(&CMortar::MortarExplode);
	pev->nextthink = 0;

	Precache();
}


void CMortar::Precache()
{
	m_spriteTexture = PRECACHE_MODEL("sprites/lgtning.spr");
}

void CMortar::MortarExplode()
{
#if 1
	// mortar beam
	MESSAGE_BEGIN(MSG_BROADCAST, SVC_TEMPENTITY);
	WRITE_BYTE(TE_BEAMPOINTS);
	WRITE_COORD(pev->origin.x);
	WRITE_COORD(pev->origin.y);
	WRITE_COORD(pev->origin.z);
	WRITE_COORD(pev->origin.x);
	WRITE_COORD(pev->origin.y);
	WRITE_COORD(pev->origin.z + 1024);
	WRITE_SHORT(m_spriteTexture);
	WRITE_BYTE(0);	 // framerate
	WRITE_BYTE(0);	 // framerate
	WRITE_BYTE(1);	 // life
	WRITE_BYTE(40);	 // width
	WRITE_BYTE(0);	 // noise
	WRITE_BYTE(255); // r, g, b
	WRITE_BYTE(160); // r, g, b
	WRITE_BYTE(100); // r, g, b
	WRITE_BYTE(128); // brightness
	WRITE_BYTE(0);	 // speed
	MESSAGE_END();
#endif

#if 0
	// blast circle
	MESSAGE_BEGIN( MSG_BROADCAST, SVC_TEMPENTITY );
		WRITE_BYTE( TE_BEAMTORUS);
		WRITE_COORD(pev->origin.x);
		WRITE_COORD(pev->origin.y);
		WRITE_COORD(pev->origin.z + 32);
		WRITE_COORD(pev->origin.x);
		WRITE_COORD(pev->origin.y);
		WRITE_COORD(pev->origin.z + 32 + pev->dmg * 2 / .2); // reach damage radius over .3 seconds
		WRITE_SHORT(m_spriteTexture );
		WRITE_BYTE( 0 ); // startframe
		WRITE_BYTE( 0 ); // framerate
		WRITE_BYTE( 2 ); // life
		WRITE_BYTE( 12 );  // width
		WRITE_BYTE( 0 );   // noise
		WRITE_BYTE( 255 );   // r, g, b
		WRITE_BYTE( 160 );   // r, g, b
		WRITE_BYTE( 100 );   // r, g, b
		WRITE_BYTE( 255 );	// brightness
		WRITE_BYTE( 0 );		// speed
	MESSAGE_END();
#endif

	TraceResult tr;
	UTIL_TraceLine(pev->origin + Vector(0, 0, 1024), pev->origin - Vector(0, 0, 1024), dont_ignore_monsters, ENT(pev), &tr);

	Explode(&tr, DMG_BLAST | DMG_MORTAR);
	UTIL_ScreenShake(tr.vecEndPos, 25.0, 150.0, 1.0, 750);

#if 0
	int pitch = RANDOM_LONG(95,124);
	EMIT_SOUND_DYN(ENT(pev), CHAN_VOICE, "weapons/mortarhit.wav", 1.0, 0.55, 0, pitch);

	// ForceSound( SNDRADIUS_MP5, bits_SOUND_COMBAT );

	// ExplodeModel( pev->origin, 400, g_sModelIndexShrapnel, 30 );

	RadiusDamage ( pev, VARS(pev->owner), pev->dmg, CLASS_NONE, DMG_BLAST );

	/*
	if ( RANDOM_FLOAT ( 0 , 1 ) < 0.5 )
	{
		UTIL_DecalTrace( pTrace, DECAL_SCORCH1 );
	}
	else
	{
		UTIL_DecalTrace( pTrace, DECAL_SCORCH2 );
	}
	*/

	SetThink( &CMortar::SUB_Remove );
	pev->nextthink = gpGlobals->time + 0.1;
#endif
}


#if 0
void CMortar::ShootTimed( EVARS *pevOwner, Vector vecStart, float time )
{
	CMortar *pMortar = GetClassPtr( (CMortar *)NULL );
	pMortar->Spawn();

	TraceResult tr;
	UTIL_TraceLine( vecStart, vecStart + Vector( 0, 0, -1 ) * 4096, ignore_monsters, ENT(pMortar->pev), &tr );

	pMortar->pev->nextthink = gpGlobals->time + time;

	UTIL_SetOrigin( pMortar->pev, tr.vecEndPos );
}
#endif