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game/shared/tf2/grenade_objectsapper.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+#include "cbase.h"
+#include "player.h"
+#include "tf_obj.h"
+#include "basegrenade_shared.h"
+#include "grenade_objectsapper.h"
+#include "engine/IEngineSound.h"
+
+// Damage CVars
+static ConVar	weapon_objectsapper_damage( "weapon_objectsapper_damage","50", FCVAR_NONE, "Damage done, per second, by the object sapper." );
+
+// Global Savedata for friction modifier
+BEGIN_DATADESC( CGrenadeObjectSapper )
+
+	// Function Pointers
+	DEFINE_THINKFUNC( SapperThink ),
+
+END_DATADESC()
+
+IMPLEMENT_SERVERCLASS_ST(CGrenadeObjectSapper, DT_GrenadeObjectSapper)
+	SendPropInt(SENDINFO(m_bSapping), 1, SPROP_UNSIGNED ),
+END_SEND_TABLE();
+
+LINK_ENTITY_TO_CLASS( grenade_objectsapper, CGrenadeObjectSapper );
+PRECACHE_WEAPON_REGISTER(grenade_objectsapper);
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CGrenadeObjectSapper::Spawn( void )
+{
+	SetMoveType( MOVETYPE_NONE );
+	SetSolid( SOLID_BBOX );
+	AddSolidFlags( FSOLID_NOT_SOLID );
+	SetGravity( 0.0 );
+	SetFriction( 1.0 );
+	SetModel( "models/sapper.mdl");
+	UTIL_SetSize(this, Vector( -8, -8, -8), Vector(8, 8, 8));
+	SetCollisionGroup( TFCOLLISION_GROUP_WEAPON );
+	m_takedamage = DAMAGE_NO;
+	m_iHealth = 50.0;
+	m_bSapping = false;
+	
+	// Set my damages to the cvar values
+	SetDamage( weapon_objectsapper_damage.GetFloat() * 0.1 );
+	SetDamageRadius( 0 );
+
+	SetTouch( NULL );
+	SetThink( SapperThink );
+	SetNextThink( gpGlobals->curtime + 0.1f );
+
+	m_bArmed = true;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+//-----------------------------------------------------------------------------
+void CGrenadeObjectSapper::Precache( void )
+{
+	PrecacheModel( "models/sapper.mdl" );
+
+	PrecacheScriptSound( "GrenadeObjectSapper.Arming" );
+	PrecacheScriptSound( "GrenadeObjectSapper.RemoveSapper" );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CGrenadeObjectSapper::PlayArmingSound( void )
+{
+	EmitSound( "GrenadeObjectSapper.Arming" );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : armed - 
+//-----------------------------------------------------------------------------
+void CGrenadeObjectSapper::SetArmed( bool armed )
+{
+	bool ch = armed != m_bArmed;
+	m_bArmed = armed;
+
+	// Going armed
+	if ( ch && m_bArmed )
+	{
+		PlayArmingSound();
+	}
+
+	if ( m_bArmed )
+	{
+		RemoveEffects( EF_NODRAW );
+	}
+	else
+	{
+		AddEffects( EF_NODRAW );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Output : Returns true on success, false on failure.
+//-----------------------------------------------------------------------------
+bool CGrenadeObjectSapper::GetArmed( void ) const
+{
+	return m_bArmed;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Sap the health from the object I'm attached to
+//-----------------------------------------------------------------------------
+void CGrenadeObjectSapper::SapperThink( void )
+{
+	SetNextThink( gpGlobals->curtime + 0.1f );
+
+	// Not armed yet?
+	if ( !GetArmed() )
+		return;
+
+	// Remove myself if I'm armed, but don't have an object to sap
+	if ( !m_hTargetObject )
+	{
+		UTIL_Remove( this );
+		return;
+	}
+
+	m_bSapping = true;
+
+	// Damage our target (add DMG_CRUSH to prevent physics damage)
+	m_hTargetObject->TakeDamage( CTakeDamageInfo( this, GetThrower(), GetDamage(), GetDamageType() | DMG_CRUSH ) );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Set our target object
+//-----------------------------------------------------------------------------
+void CGrenadeObjectSapper::SetTargetObject( CBaseObject *pObject )
+{
+	// Remove myself from any object I'm on
+	if ( m_hTargetObject != pObject )
+	{
+		if ( m_hTargetObject.Get() )
+		{
+			m_hTargetObject->RemoveSapper( this );
+			SetParent( NULL );
+		}
+
+		m_hTargetObject = pObject;
+
+		// Tell any object I've just been attached to
+		if ( m_hTargetObject )
+		{
+			m_hTargetObject->AddSapper( this );
+			SetParent( m_hTargetObject );
+		}
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Allow players to remove sappers from objects
+//-----------------------------------------------------------------------------
+void CGrenadeObjectSapper::Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value )
+{
+	// Only enemies remove the sapper
+	if ( !InSameTeam( pActivator ) )
+	{
+		// Enemy is grabbing me
+		EmitSound( "GrenadeObjectSapper.RemoveSapper" );
+		SetTargetObject( NULL );
+		UTIL_Remove( this );
+	}
+/*	
+	ROBIN: Removed self-removal of sapper
+
+	else
+	{
+		// Ignore everyone except my owner
+		if ( pPlayer != m_hOwner )
+			return;
+		if ( pPlayer->GiveAmmo( 1, "Sappers") )
+		{
+			// Picked up, remove me
+			SetTargetObject( NULL );
+			UTIL_Remove( this );
+		}
+	}
+*/
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Create an object sapper grenade
+//-----------------------------------------------------------------------------
+CGrenadeObjectSapper *CGrenadeObjectSapper::Create( const Vector &vecOrigin, const Vector &vecForward, CBasePlayer *pOwner, CBaseObject *pObject )
+{
+	CGrenadeObjectSapper *pGrenade = (CGrenadeObjectSapper*)CreateEntityByName("grenade_objectsapper");
+
+	UTIL_SetOrigin( pGrenade, vecOrigin );
+	pGrenade->Spawn();
+	pGrenade->SetThrower( pOwner );
+	pGrenade->SetAbsVelocity( vec3_origin );
+	QAngle angles;
+	VectorAngles( vecForward, angles );
+	angles.x -= 90;
+	pGrenade->SetLocalAngles( angles );
+	pGrenade->ChangeTeam( pOwner->GetTeamNumber() );
+	
+	return pGrenade;
+}