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game/server/hl2/weapon_tripwire.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $Workfile:     $
+// $Date:         $
+// $NoKeywords: $
+//=============================================================================//
+#include "cbase.h"
+#include "util.h"
+#include "basehlcombatweapon.h"
+#include "player.h"
+#include "gamerules.h"
+#include "grenade_tripwire.h"
+#include "grenade_satchel.h"
+#include "entitylist.h"
+#include "weapon_tripwire.h"
+#include "npcevent.h"
+#include "in_buttons.h"
+#include "engine/IEngineSound.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+BEGIN_DATADESC( CWeapon_Tripwire )
+
+	DEFINE_FIELD( m_bNeedReload, FIELD_BOOLEAN ),
+	DEFINE_FIELD( m_bClearReload, FIELD_BOOLEAN ),
+	DEFINE_FIELD( m_bAttachTripwire, FIELD_BOOLEAN ),
+
+	// Function Pointers
+	DEFINE_FUNCTION( TripwireTouch ),
+
+END_DATADESC()
+
+
+IMPLEMENT_SERVERCLASS_ST(CWeapon_Tripwire, DT_Weapon_Tripwire)
+END_SEND_TABLE()
+
+LINK_ENTITY_TO_CLASS( weapon_tripwire, CWeapon_Tripwire );
+
+// BUGBUG: Enable this when the script & resources are checked in.
+//PRECACHE_WEAPON_REGISTER(weapon_tripwire);
+
+acttable_t	CWeapon_Tripwire::m_acttable[] = 
+{
+	{ ACT_RANGE_ATTACK1, ACT_RANGE_ATTACK_TRIPWIRE, true },
+};
+
+IMPLEMENT_ACTTABLE(CWeapon_Tripwire);
+
+
+void CWeapon_Tripwire::Spawn( )
+{
+	UTIL_Remove(this);
+	return;
+
+	BaseClass::Spawn();
+
+	Precache( );
+
+	UTIL_SetSize(this, Vector(-4,-4,-2),Vector(4,4,2));
+
+
+	FallInit();// get ready to fall down
+
+	SetThink( NULL );
+
+	// Give one piece of default ammo when first picked up
+	m_iClip2 = 1;
+}
+
+void CWeapon_Tripwire::Precache( void )
+{
+	BaseClass::Precache();
+
+	PrecacheScriptSound( "Weapon_Tripwire.Attach" );
+
+	UTIL_PrecacheOther( "npc_tripwire" );
+}
+
+//------------------------------------------------------------------------------
+// Purpose : Override to use tripwire's pickup touch function
+// Input   :
+// Output  :
+//------------------------------------------------------------------------------
+void CWeapon_Tripwire::SetPickupTouch( void )
+{
+	SetTouch(TripwireTouch);
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Override so give correct ammo
+// Input  : pOther - the entity that touched me
+// Output :
+//-----------------------------------------------------------------------------
+void CWeapon_Tripwire::TripwireTouch( CBaseEntity *pOther )
+{
+	// ---------------------------------------------------
+	//  First give weapon to touching entity if allowed
+	// ---------------------------------------------------
+	BaseClass::DefaultTouch(pOther);
+
+	// ----------------------------------------------------
+	//  Give ammo if touching client
+	// ----------------------------------------------------
+	if (pOther->GetFlags() & FL_CLIENT)
+	{
+		// ------------------------------------------------
+		//  If already owned weapon of this type remove me
+		// ------------------------------------------------
+		CBaseCombatCharacter* pBCC = ToBaseCombatCharacter( pOther );
+		CWeapon_Tripwire* oldWeapon = (CWeapon_Tripwire*)pBCC->Weapon_OwnsThisType( GetClassname() );
+		if (oldWeapon != this)
+		{
+			UTIL_Remove( this );
+		}
+		else
+		{
+			pBCC->GiveAmmo( 1, m_iSecondaryAmmoType );
+			SetThink(NULL);
+		}
+	}
+}
+
+//------------------------------------------------------------------------------
+// Purpose :
+// Input   :
+// Output  :
+//------------------------------------------------------------------------------
+bool CWeapon_Tripwire::Holster( CBaseCombatWeapon *pSwitchingTo )
+{
+	SetThink(NULL);
+	return BaseClass::Holster(pSwitchingTo);
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Tripwire has no reload, but must call weapon idle to update state
+// Input  :
+// Output :
+//-----------------------------------------------------------------------------
+bool CWeapon_Tripwire::Reload( void )
+{
+	WeaponIdle( );
+	return true;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+// Input  :
+// Output :
+//-----------------------------------------------------------------------------
+void CWeapon_Tripwire::PrimaryAttack( void )
+{
+	CBaseCombatCharacter *pOwner  = GetOwner();
+	if (!pOwner)
+	{ 
+		return;
+	}
+
+	if (pOwner->GetAmmoCount(m_iSecondaryAmmoType) <= 0)
+	{
+		return;
+	}
+
+	if (CanAttachTripwire())
+	{
+		StartTripwireAttach();
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Secondary attack does nothing
+// Input  :
+// Output :
+//-----------------------------------------------------------------------------
+void CWeapon_Tripwire::SecondaryAttack( void )
+{
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+// Input  :
+// Output :
+//-----------------------------------------------------------------------------
+void CWeapon_Tripwire::TripwireAttach( void )
+{
+	CBaseCombatCharacter *pOwner  = GetOwner();
+	if (!pOwner)
+	{
+		return;
+	}
+
+	m_bAttachTripwire = false;
+
+	Vector vecSrc	 = pOwner->Weapon_ShootPosition();
+	Vector vecAiming = pOwner->BodyDirection2D( );
+
+	trace_t tr;
+
+	UTIL_TraceLine( vecSrc, vecSrc + (vecAiming * 128), MASK_SOLID, pOwner, COLLISION_GROUP_NONE, &tr );
+	
+	if (tr.fraction < 1.0)
+	{
+		CBaseEntity *pEntity = tr.m_pEnt;
+		if (pEntity && !(pEntity->GetFlags() & FL_CONVEYOR))
+		{
+			QAngle angles;
+			VectorAngles(tr.plane.normal, angles);
+			angles.x += 90;
+			
+			CBaseEntity *pEnt = CBaseEntity::Create( "npc_tripwire", tr.endpos + tr.plane.normal * 3, angles, NULL );
+
+			CTripwireGrenade *pMine = (CTripwireGrenade *)pEnt;
+			pMine->SetThrower( GetOwner() );
+
+			pOwner->RemoveAmmo( 1, m_iSecondaryAmmoType );
+
+			EmitSound( "Weapon_Tripwire.Attach" );
+		}
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+// Input  :
+// Output :
+//-----------------------------------------------------------------------------
+void CWeapon_Tripwire::StartTripwireAttach( void )
+{
+	// Only the player fires this way so we can cast
+	CBasePlayer *pPlayer = ToBasePlayer( GetOwner() );
+	if (!pPlayer)
+	{
+		return;
+	}
+
+	Vector vecSrc	 = pPlayer->Weapon_ShootPosition();
+	Vector vecAiming = pPlayer->BodyDirection3D( );
+
+	trace_t tr;
+
+	UTIL_TraceLine( vecSrc, vecSrc + (vecAiming * 128), MASK_SOLID, pPlayer, COLLISION_GROUP_NONE, &tr );
+	
+	if (tr.fraction < 1.0)
+	{
+		// ALERT( at_console, "hit %f\n", tr.flFraction );
+
+		CBaseEntity *pEntity = tr.m_pEnt;
+		if (pEntity && !(pEntity->GetFlags() & FL_CONVEYOR))
+		{
+			// player "shoot" animation
+			pPlayer->SetAnimation( PLAYER_ATTACK1 );
+
+			// -----------------------------------------
+			//  Play attach animation
+			// -----------------------------------------
+			SendWeaponAnim(ACT_SLAM_TRIPMINE_ATTACH);
+
+			m_bNeedReload		= true;
+			m_bAttachTripwire	= true;
+		}
+		else
+		{
+			// ALERT( at_console, "no deploy\n" );
+		}
+	}
+	m_flNextPrimaryAttack	= gpGlobals->curtime + SequenceDuration();
+	m_flNextSecondaryAttack	= gpGlobals->curtime + SequenceDuration();
+//	SetWeaponIdleTime( gpGlobals->curtime + SequenceDuration() );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+// Input  :
+// Output :
+//-----------------------------------------------------------------------------
+bool CWeapon_Tripwire::CanAttachTripwire( void )
+{
+	CBaseCombatCharacter *pOwner  = GetOwner();
+	if (!pOwner)
+	{
+		return false;
+	}
+
+	Vector vecSrc	 = pOwner->Weapon_ShootPosition();
+	Vector vecAiming = pOwner->BodyDirection2D( );
+
+	trace_t tr;
+
+	Vector	vecEnd = vecSrc + (vecAiming * 42);
+	UTIL_TraceLine( vecSrc, vecEnd, MASK_SOLID, pOwner, COLLISION_GROUP_NONE, &tr );
+	
+	if (tr.fraction < 1.0)
+	{
+		// Don't attach to a living creature
+		if (tr.m_pEnt)
+		{
+			CBaseEntity *pEntity = tr.m_pEnt;
+			CBaseCombatCharacter *pBCC		= ToBaseCombatCharacter( pEntity );
+			if (pBCC)
+			{
+				return false;
+			}
+		}
+		return true;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  :
+// Output :
+//-----------------------------------------------------------------------------
+void CWeapon_Tripwire::ItemPostFrame( void )
+{
+	CBasePlayer *pOwner = ToBasePlayer( GetOwner() );
+	if (!pOwner)
+	{
+		return;
+	}
+
+	if ((pOwner->m_nButtons & IN_ATTACK2) && (m_flNextSecondaryAttack <= gpGlobals->curtime))
+	{
+		SecondaryAttack();
+	}
+	else if (!m_bNeedReload && (pOwner->m_nButtons & IN_ATTACK) && (m_flNextPrimaryAttack <= gpGlobals->curtime))
+	{
+		PrimaryAttack();
+	}
+
+	// -----------------------
+	//  No buttons down
+	// -----------------------
+	else 
+	{
+		WeaponIdle( );
+		return;
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+// Input  :
+// Output :
+//-----------------------------------------------------------------------------
+void CWeapon_Tripwire::WeaponIdle( void )
+{
+	// Ready to switch animations?
+ 	if ( HasWeaponIdleTimeElapsed() )
+	{
+		if (m_bClearReload)
+		{
+			m_bNeedReload  = false;
+			m_bClearReload = false;
+		}
+		CBaseCombatCharacter *pOwner  = GetOwner();
+		if (!pOwner)
+		{
+			return;
+		}
+
+		int iAnim = 0;
+
+		if (m_bAttachTripwire)
+		{
+			TripwireAttach();
+			iAnim = ACT_SLAM_TRIPMINE_ATTACH2;
+		}	
+		else if (m_bNeedReload)
+		{	
+			// If owner had ammo draw the correct tripwire type
+			if (pOwner->GetAmmoCount(m_iSecondaryAmmoType) > 0)
+			{
+				iAnim = ACT_SLAM_TRIPMINE_DRAW;
+				m_bClearReload			= true;
+			}
+			else
+			{
+				pOwner->Weapon_Drop( this );
+				UTIL_Remove(this);
+			}
+		}
+		else if (pOwner->GetAmmoCount(m_iSecondaryAmmoType) <= 0)
+		{
+			pOwner->Weapon_Drop( this );
+			UTIL_Remove(this);
+		}
+
+		// If I don't need to reload just do the appropriate idle
+		else
+		{
+			iAnim = ACT_SLAM_TRIPMINE_IDLE;
+		}
+		SendWeaponAnim( iAnim );
+	}
+}
+
+bool CWeapon_Tripwire::Deploy( void )
+{
+	CBaseCombatCharacter *pOwner  = GetOwner();
+	if (!pOwner)
+	{
+		return false;
+	}
+
+	SetModel( GetViewModel() );
+
+	// ------------------------------
+	// Pick the right draw animation
+	// ------------------------------
+	int iActivity;
+
+	// If detonator is already armed
+	m_bNeedReload = false;
+	iActivity = ACT_SLAM_STICKWALL_ND_DRAW; 
+	return DefaultDeploy( (char*)GetViewModel(), (char*)GetWorldModel(), iActivity, (char*)GetAnimPrefix() );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Constructor
+// Input  :
+// Output :
+//-----------------------------------------------------------------------------
+CWeapon_Tripwire::CWeapon_Tripwire(void)
+{
+	m_bNeedReload			= true;
+	m_bClearReload			= false;
+	m_bAttachTripwire		= false;
+}