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FluorescentCIAAfricanAmerican
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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose: Implements the tripmine grenade.
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//
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// $NoKeywords: $
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//=============================================================================//
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#include "cbase.h"
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#include "util.h"
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#include "shake.h"
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#include "grenade_tripwire.h"
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#include "grenade_homer.h"
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#include "rope.h"
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#include "rope_shared.h"
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#include "engine/IEngineSound.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include "tier0/memdbgon.h"
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ConVar sk_dmg_tripwire ( "sk_dmg_tripwire","0");
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ConVar sk_tripwire_radius ( "sk_tripwire_radius","0");
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#define GRENADETRIPWIRE_MISSILEMDL "models/Weapons/ar2_grenade.mdl"
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#define TGRENADE_LAUNCH_VEL 1200
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#define TGRENADE_SPIN_MAG 50
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#define TGRENADE_SPIN_SPEED 100
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#define TGRENADE_MISSILE_OFFSET 50
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#define TGRENADE_MAX_ROPE_LEN 1500
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LINK_ENTITY_TO_CLASS( npc_tripwire, CTripwireGrenade );
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BEGIN_DATADESC( CTripwireGrenade )
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DEFINE_FIELD( m_flPowerUp, FIELD_TIME ),
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DEFINE_FIELD( m_nMissileCount, FIELD_INTEGER ),
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DEFINE_FIELD( m_vecDir, FIELD_VECTOR ),
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DEFINE_FIELD( m_vTargetPos, FIELD_POSITION_VECTOR ),
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DEFINE_FIELD( m_vTargetOffset, FIELD_VECTOR ),
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DEFINE_FIELD( m_pRope, FIELD_CLASSPTR ),
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DEFINE_FIELD( m_pHook, FIELD_CLASSPTR ),
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// Function Pointers
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DEFINE_FUNCTION( WarningThink ),
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DEFINE_FUNCTION( PowerupThink ),
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DEFINE_FUNCTION( RopeBreakThink ),
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DEFINE_FUNCTION( FireThink ),
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END_DATADESC()
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CTripwireGrenade::CTripwireGrenade()
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{
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m_vecDir.Init();
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}
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void CTripwireGrenade::Spawn( void )
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{
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Precache( );
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SetMoveType( MOVETYPE_FLY );
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SetSolid( SOLID_BBOX );
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AddSolidFlags( FSOLID_NOT_SOLID );
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SetModel( "models/Weapons/w_slam.mdl" );
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m_nMissileCount = 0;
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UTIL_SetSize(this, Vector( -4, -4, -2), Vector(4, 4, 2));
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m_flPowerUp = gpGlobals->curtime + 1.2;//<<CHECK>>get rid of this
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SetThink( WarningThink );
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SetNextThink( gpGlobals->curtime + 1.0f );
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m_takedamage = DAMAGE_YES;
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m_iHealth = 1;
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m_pRope = NULL;
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m_pHook = NULL;
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// Tripwire grenade sits at 90 on wall so rotate back to get m_vecDir
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QAngle angles = GetLocalAngles();
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angles.x -= 90;
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AngleVectors( angles, &m_vecDir );
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}
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void CTripwireGrenade::Precache( void )
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{
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PrecacheModel("models/Weapons/w_slam.mdl");
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PrecacheModel(GRENADETRIPWIRE_MISSILEMDL);
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}
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void CTripwireGrenade::WarningThink( void )
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{
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// play activate sound
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EmitSound( "TripwireGrenade.Activate" );
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// set to power up
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SetThink( PowerupThink );
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SetNextThink( gpGlobals->curtime + 1.0f );
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}
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void CTripwireGrenade::PowerupThink( void )
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{
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if (gpGlobals->curtime > m_flPowerUp)
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{
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MakeRope( );
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RemoveSolidFlags( FSOLID_NOT_SOLID );
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m_bIsLive = true;
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}
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SetNextThink( gpGlobals->curtime + 0.1f );
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}
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void CTripwireGrenade::BreakRope( void )
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{
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if (m_pRope)
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{
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m_pRope->m_RopeFlags |= ROPE_COLLIDE;
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m_pRope->DetachPoint(0);
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Vector vVelocity;
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m_pHook->GetVelocity( &vVelocity, NULL );
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if (vVelocity.Length() > 1)
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{
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m_pRope->DetachPoint(1);
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}
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}
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}
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void CTripwireGrenade::MakeRope( void )
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{
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SetThink( RopeBreakThink );
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// Delay first think slightly so rope has time
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// to appear if person right in front of it
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SetNextThink( gpGlobals->curtime + 1.0f );
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// Create hook for end of tripwire
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m_pHook = (CTripwireHook*)CBaseEntity::Create( "tripwire_hook", GetLocalOrigin(), GetLocalAngles() );
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if (m_pHook)
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{
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Vector vShootVel = 800*(m_vecDir + Vector(0,0,0.3)+RandomVector(-0.01,0.01));
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m_pHook->SetVelocity( vShootVel, vec3_origin);
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m_pHook->SetOwnerEntity( this );
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m_pHook->m_hGrenade = this;
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m_pRope = CRopeKeyframe::Create(this,m_pHook,0,0);
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if (m_pRope)
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{
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m_pRope->m_Width = 1;
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m_pRope->m_RopeLength = 3;
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m_pRope->m_Slack = 100;
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CPASAttenuationFilter filter( this,"TripwireGrenade.ShootRope" );
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EmitSound( filter, entindex(),"TripwireGrenade.ShootRope" );
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}
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}
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}
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void CTripwireGrenade::Attach( void )
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{
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StopSound( "TripwireGrenade.ShootRope" );
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}
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void CTripwireGrenade::RopeBreakThink( void )
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{
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// See if I can go solid yet (has dropper moved out of way?)
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if (IsSolidFlagSet(FSOLID_NOT_SOLID))
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{
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trace_t tr;
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Vector vUpBit = GetAbsOrigin();
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vUpBit.z += 5.0;
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UTIL_TraceEntity( this, GetAbsOrigin(), vUpBit, MASK_SHOT, &tr );
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if ( !tr.startsolid && (tr.fraction == 1.0) )
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{
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RemoveSolidFlags( FSOLID_NOT_SOLID );
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}
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}
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// Check if rope had gotten beyond it's max length
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float flRopeLength = (GetAbsOrigin()-m_pHook->GetAbsOrigin()).Length();
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if (flRopeLength > TGRENADE_MAX_ROPE_LEN)
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{
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// Shoot missiles at hook
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m_iHealth = 0;
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BreakRope();
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m_vTargetPos = m_pHook->GetAbsOrigin();
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CrossProduct ( m_vecDir, Vector(0,0,1), m_vTargetOffset );
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m_vTargetOffset *=TGRENADE_MISSILE_OFFSET;
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SetThink(FireThink);
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FireThink();
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}
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// Check to see if can see hook
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// NOT MASK_SHOT because we want only simple hit boxes
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trace_t tr;
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UTIL_TraceLine( GetAbsOrigin(), m_pHook->GetAbsOrigin(), MASK_SOLID, this, COLLISION_GROUP_NONE, &tr );
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// If can't see hook
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CBaseEntity *pEntity = tr.m_pEnt;
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if (tr.fraction != 1.0 && pEntity != m_pHook)
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{
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// Shoot missiles at place where rope was intersected
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m_iHealth = 0;
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BreakRope();
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m_vTargetPos = tr.endpos;
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CrossProduct ( m_vecDir, Vector(0,0,1), m_vTargetOffset );
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m_vTargetOffset *=TGRENADE_MISSILE_OFFSET;
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SetThink(FireThink);
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FireThink();
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return;
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}
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SetNextThink( gpGlobals->curtime + 0.1f );
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}
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//------------------------------------------------------------------------------
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// Purpose : Die if I take any damage
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// Input :
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// Output :
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//------------------------------------------------------------------------------
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int CTripwireGrenade::OnTakeDamage_Alive( const CTakeDamageInfo &info )
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{
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// Killed upon any damage
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Event_Killed( info );
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return 0;
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}
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//-----------------------------------------------------------------------------
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// Purpose: If someone damaged, me shoot of my missiles and die
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// Input :
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// Output :
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//-----------------------------------------------------------------------------
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void CTripwireGrenade::Event_Killed( const CTakeDamageInfo &info )
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{
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if (m_iHealth > 0)
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{
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// Fire missiles and blow up
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for (int i=0;i<6;i++)
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{
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Vector vTargetPos = GetAbsOrigin() + RandomVector(-600,600);
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FireMissile(vTargetPos);
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}
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BreakRope();
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UTIL_Remove(this);
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}
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}
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//------------------------------------------------------------------------------
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// Purpose : Fire a missile at the target position
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// Input :
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// Output :
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//------------------------------------------------------------------------------
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void CTripwireGrenade::FireMissile(const Vector &vTargetPos)
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{
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Vector vTargetDir = (vTargetPos - GetAbsOrigin());
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VectorNormalize(vTargetDir);
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float flGravity = 0.0001; // No gravity on the missiles
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bool bSmokeTrail = true;
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float flHomingSpeed = 0;
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Vector vLaunchVelocity = TGRENADE_LAUNCH_VEL*vTargetDir;
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float flSpinMagnitude = TGRENADE_SPIN_MAG;
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float flSpinSpeed = TGRENADE_SPIN_SPEED;
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//<<CHECK>> hold in string_t
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CGrenadeHomer *pGrenade = CGrenadeHomer::CreateGrenadeHomer( MAKE_STRING(GRENADETRIPWIRE_MISSILEMDL), MAKE_STRING("TripwireGrenade.FlySound"), GetAbsOrigin(), vec3_angle, edict() );
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pGrenade->Spawn( );
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pGrenade->SetSpin(flSpinMagnitude,flSpinSpeed);
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pGrenade->SetHoming(0,0,0,0,0);
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pGrenade->SetDamage(sk_dmg_tripwire.GetFloat());
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pGrenade->SetDamageRadius(sk_tripwire_radius.GetFloat());
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pGrenade->Launch(this,NULL,vLaunchVelocity,flHomingSpeed,flGravity,bSmokeTrail);
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// Calculate travel time
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float flTargetDist = (GetAbsOrigin() - vTargetPos).Length();
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pGrenade->m_flDetonateTime = gpGlobals->curtime + flTargetDist/TGRENADE_LAUNCH_VEL;
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}
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//------------------------------------------------------------------------------
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// Purpose : Shoot off a series of missiles over time, then go intert
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// Input :
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// Output :
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//------------------------------------------------------------------------------
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void CTripwireGrenade::FireThink()
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{
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SetNextThink( gpGlobals->curtime + 0.16f );
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Vector vTargetPos = m_vTargetPos + (m_vTargetOffset * m_nMissileCount);
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FireMissile(vTargetPos);
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vTargetPos = m_vTargetPos - (m_vTargetOffset * m_nMissileCount);
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FireMissile(vTargetPos);
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m_nMissileCount++;
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if (m_nMissileCount > 4)
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{
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m_iHealth = -1;
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SetThink( NULL );
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}
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}
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// ####################################################################
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// CTripwireHook
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//
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// This is what the tripwire shoots out at the end of the rope
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// ####################################################################
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LINK_ENTITY_TO_CLASS( tripwire_hook, CTripwireHook );
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//---------------------------------------------------------
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// Save/Restore
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//---------------------------------------------------------
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BEGIN_DATADESC( CTripwireHook )
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DEFINE_FIELD( m_hGrenade, FIELD_EHANDLE ),
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DEFINE_FIELD( m_bAttached, FIELD_BOOLEAN ),
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END_DATADESC()
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void CTripwireHook::Spawn( void )
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{
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Precache( );
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SetModel( "models/Weapons/w_grenade.mdl" );//<<CHECK>>
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UTIL_SetSize(this, Vector( -1, -1, -1), Vector(1,1, 1));
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m_takedamage = DAMAGE_NO;
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m_bAttached = false;
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CreateVPhysics();
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}
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bool CTripwireHook::CreateVPhysics()
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{
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// Create the object in the physics system
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IPhysicsObject *pPhysicsObject = VPhysicsInitNormal( SOLID_BBOX, 0, false );
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// Make sure I get touch called for static geometry
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if ( pPhysicsObject )
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{
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int flags = pPhysicsObject->GetCallbackFlags();
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flags |= CALLBACK_GLOBAL_TOUCH_STATIC;
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pPhysicsObject->SetCallbackFlags(flags);
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}
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return true;
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}
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void CTripwireHook::Precache( void )
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{
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PrecacheModel("models/Weapons/w_grenade.mdl"); //<<CHECK>>
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}
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void CTripwireHook::EndTouch( CBaseEntity *pOther )
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{
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//<<CHECK>>do instead by clearing touch function
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if (!m_bAttached)
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{
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m_bAttached = true;
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SetVelocity(vec3_origin, vec3_origin);
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SetMoveType( MOVETYPE_NONE );
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EmitSound( "TripwireGrenade.Hook" );
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// Let the tripwire grenade know that I've attached
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CTripwireGrenade* pGrenade = dynamic_cast<CTripwireGrenade*>((CBaseEntity*)m_hGrenade);
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if (pGrenade)
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{
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pGrenade->Attach();
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}
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}
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}
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void CTripwireHook::SetVelocity( const Vector &velocity, const AngularImpulse &angVelocity )
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{
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IPhysicsObject *pPhysicsObject = VPhysicsGetObject();
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if ( pPhysicsObject )
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{
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pPhysicsObject->AddVelocity( &velocity, &angVelocity );
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}
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}
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