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game/shared/tfc/nailgun_nail.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#include "cbase.h"
+#include "nailgun_nail.h"
+
+
+#define NAILGUN_MODEL "models/nail.mdl"
+
+
+LINK_ENTITY_TO_CLASS( tf_nailgun_nail, CTFNailgunNail );
+PRECACHE_REGISTER( tf_nailgun_nail );
+
+BEGIN_DATADESC( CTFNailgunNail )
+	DEFINE_FUNCTION( NailTouch )
+END_DATADESC()
+
+
+
+CTFNailgunNail *CTFNailgunNail::CreateNail( 
+	bool fSendClientNail, 
+	Vector vecOrigin, 
+	QAngle vecAngles, 
+	CBaseEntity *pOwner, 
+	CBaseEntity *pLauncher, 
+	bool fMakeClientNail )
+{
+	CTFNailgunNail *pNail = (CTFNailgunNail*)CreateEntityByName( "tf_nailgun_nail" );
+	if ( !pNail )
+		return NULL;
+
+	pNail->SetAbsOrigin( vecOrigin );
+	pNail->SetAbsAngles( vecAngles );
+	pNail->SetOwnerEntity( pOwner );
+	pNail->Spawn();
+	pNail->SetTouch( &CTFNailgunNail::NailTouch );
+	pNail->m_iDamage = 9;
+/*
+	if ( fMakeClientNail )
+	{
+		edict_t *pOwner;
+		int indexOwner;
+
+		// don't send to clients.
+		pNail->pev->effects |= EF_NODRAW;
+		pOwner = ENT( pNail->pev->owner );
+		indexOwner = ENTINDEX(pOwner);
+
+		if ( fSendClientNail )
+			UTIL_ClientProjectile( pNail->pev->origin, pNail->pev->velocity, g_sModelIndexNail, indexOwner, 6 );
+	}
+*/
+	return pNail;
+}
+
+
+
+CTFNailgunNail *CTFNailgunNail::CreateSuperNail( Vector vecOrigin, QAngle vecAngles, CBaseEntity *pOwner, CBaseEntity *pLauncher )
+{
+	// Super nails simply do more damage
+	CTFNailgunNail *pNail = CreateNail( false, vecOrigin, vecAngles, pOwner, pLauncher, true );
+	pNail->m_iDamage = 13;
+	return pNail;
+}
+
+
+//=========================================================
+// CTFNailgunNail::Spawn
+//
+// Creates an nail entity on the server that is invisible 
+// so that it won't be sent to clients. At the same time sends a
+// tiny message that creates a flying nail entity on all 
+// clients. (sjb)
+//=========================================================
+void CTFNailgunNail::Spawn()
+{
+	// motor
+	SetMoveType( MOVETYPE_FLYGRAVITY );
+	SetSolid( SOLID_BBOX );
+
+	SetModel( NAILGUN_MODEL );
+
+	SetSize( Vector( 0, 0, 0), Vector(0, 0, 0) );
+
+	Vector vForward;
+	AngleVectors( GetAbsAngles(), &vForward );
+	SetAbsVelocity( vForward * 1000 );
+	SetGravity( 0.5 );
+
+	SetNextThink( gpGlobals->curtime + 6 );
+	SetThink( &CTFNailgunNail::SUB_Remove );
+}
+
+
+void CTFNailgunNail::Precache()
+{
+	PrecacheModel( NAILGUN_MODEL );
+	BaseClass::Precache();
+}
+
+
+void CTFNailgunNail::NailTouch( CBaseEntity *pOther )
+{
+	// Damage person hit by the nail
+	CBaseEntity *pevOwner = GetOwnerEntity();
+	if ( !pevOwner || !pOther )
+	{
+		UTIL_Remove( this );
+		return;
+	}
+
+	// Nails don't touch each other.
+	if ( dynamic_cast< CTFNailgunNail* >( pOther ) == NULL )
+	{
+		Vector vVelNorm = GetAbsVelocity();
+		VectorNormalize( vVelNorm );
+
+		Vector vDamageForce = vVelNorm;
+		Vector vDamagePosition = GetAbsOrigin();
+
+		int iStartHealth = pOther->GetHealth();
+		CTakeDamageInfo info( this, pevOwner, vDamageForce, vDamagePosition, m_iDamage, DMG_SLASH );
+		pOther->TakeDamage( info );
+		
+		// Did they take the damage?
+		if ( pOther->GetHealth() < iStartHealth )
+		{
+			SpawnBlood( GetAbsOrigin(), GetAbsVelocity(), pOther->BloodColor(), m_iDamage );
+		}
+
+		// Do an impact trace in case we hit the world.
+		trace_t tr;
+		UTIL_TraceLine( 
+			GetAbsOrigin() - vVelNorm * 30,
+			GetAbsOrigin() + vVelNorm * 50,
+			MASK_SOLID_BRUSHONLY,
+			pevOwner,
+			COLLISION_GROUP_DEBRIS,
+			&tr );
+
+		if ( tr.fraction < 1 )
+		{
+			UTIL_ImpactTrace( &tr, DMG_SLASH );
+		}
+
+		UTIL_Remove( this );
+	}	
+}
+