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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================//
#include "cbase.h"
#include "tf_player.h"
#include "engine/IEngineSound.h"
#include "grenade_rocket.h"
extern short g_sModelIndexFireball;
IMPLEMENT_SERVERCLASS_ST( CGrenadeRocket, DT_GrenadeRocket)
END_SEND_TABLE()
BEGIN_DATADESC( CGrenadeRocket )
DEFINE_FIELD( m_flDamage, FIELD_FLOAT ),
// Function Pointers
DEFINE_FUNCTION( MissileTouch ),
DEFINE_FUNCTION( FollowThink ),
END_DATADESC()
LINK_ENTITY_TO_CLASS( grenade_rocket, CGrenadeRocket );
PRECACHE_REGISTER(grenade_rocket);
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
CGrenadeRocket::CGrenadeRocket()
{
m_pRealOwner = NULL;
m_hLockTarget = NULL;
UseClientSideAnimation();
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CGrenadeRocket::Precache( void )
{
PrecacheModel( "models/weapons/w_missile.mdl" );
PrecacheScriptSound( "GrenadeRocket.FlyLoop" );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CGrenadeRocket::Spawn( void )
{
Precache();
SetMoveType( MOVETYPE_FLY );
SetSolid( SOLID_BBOX );
SetModel( "models/weapons/w_missile.mdl" );
UTIL_SetSize( this, vec3_origin, vec3_origin );
SetCollisionGroup( TFCOLLISION_GROUP_WEAPON );
SetTouch( MissileTouch );
SetDamage( 50 );
// Forward!
Vector forward;
AngleVectors( GetLocalAngles(), &forward, NULL, NULL );
SetAbsVelocity( forward * ROCKET_VELOCITY );
EmitSound( "GrenadeRocket.FlyLoop" );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CGrenadeRocket::MissileTouch( CBaseEntity *pOther )
{
Assert( pOther );
if ( !pOther->IsSolid() )
return;
Vector vecAbsOrigin = GetAbsOrigin();
CPASFilter filter( vecAbsOrigin );
te->Explosion( filter, 0.0, &vecAbsOrigin, g_sModelIndexFireball, 2.0, 15, TE_EXPLFLAG_NONE, 100, m_flDamage );
StopSound( "GrenadeRocket.FlyLoop" );
// Don't apply explosive damage if it hit a shield of any kind...
bool bHittingShield = false;
if (pOther->GetCollisionGroup() == TFCOLLISION_GROUP_SHIELD)
{
bHittingShield = true;
}
else if ( pOther->IsPlayer() )
{
CBaseTFPlayer *pPlayer = static_cast<CBaseTFPlayer*>(pOther);
trace_t tr;
float flDamage = m_flDamage;
bHittingShield = pPlayer->IsHittingShield( GetAbsVelocity(), &flDamage );
}
if (!bHittingShield)
{
RadiusDamage( CTakeDamageInfo( this, m_pRealOwner, m_flDamage, DMG_BLAST ), vecAbsOrigin, 100, CLASS_NONE, NULL );
}
UTIL_Remove( this );
}
//-----------------------------------------------------------------------------
// Purpose: Make this rocket lock onto it's target and track it
//-----------------------------------------------------------------------------
void CGrenadeRocket::LockOnto( CBaseEntity *pTarget )
{
m_hLockTarget = pTarget;
SetThink( FollowThink );
SetNextThink( gpGlobals->curtime + 0.1f );
}
//-----------------------------------------------------------------------------
// Purpose: Try and turn towards the target point
//-----------------------------------------------------------------------------
void CGrenadeRocket::FollowThink( void )
{
if ( m_hLockTarget == NULL )
return;
// Weave slightly drunkenly to target
Vector vecTarget = m_hLockTarget->GetAbsOrigin() - GetLocalOrigin();
VectorNormalize( vecTarget );
QAngle angles;
VectorAngles( vecTarget, angles );
SetLocalAngles( angles );
Vector vecVelocity = GetAbsVelocity();
float flSpeed = vecVelocity.Length();
vecVelocity = vecVelocity * 0.2 + vecTarget * flSpeed * 1.2;
// Clip to maxspeed
if ( vecVelocity.Length() > ROCKET_VELOCITY )
{
VectorNormalize( vecVelocity );
vecVelocity *= ROCKET_VELOCITY;
}
SetAbsVelocity( vecVelocity );
SetNextThink( gpGlobals->curtime + 0.1f );
}
//-----------------------------------------------------------------------------
// Purpose: Create a missile
//-----------------------------------------------------------------------------
CGrenadeRocket *CGrenadeRocket::Create( const Vector &vecOrigin, const Vector &vecForward, edict_t *pentOwner = NULL, CBaseEntity *pRealOwner = NULL )
{
CGrenadeRocket *pRocket = (CGrenadeRocket *)CreateEntityByName("grenade_rocket" );
UTIL_SetOrigin( pRocket, vecOrigin );
QAngle angles;
VectorAngles( vecForward, angles );
pRocket->SetLocalAngles( angles );
pRocket->Spawn();
pRocket->SetOwnerEntity( Instance( pentOwner ) );
pRocket->m_pRealOwner = pRealOwner;
if (pentOwner)
{
CBaseEntity *pOwnerEnt = GetContainingEntity( pentOwner );
pRocket->ChangeTeam( pOwnerEnt->GetTeamNumber() );
}
return pRocket;
}
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