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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: A moving vehicle that is used as a battering ram
//
// $NoKeywords: $
//=============================================================================//
#include "cbase.h"
#include "tf_vehicle_battering_ram.h"
#include "engine/IEngineSound.h"
#include "VGuiScreen.h"
#include "ammodef.h"
#include "in_buttons.h"
#include "shake.h"
#define BATTERING_RAM_MINS Vector(-30, -50, -10)
#define BATTERING_RAM_MAXS Vector( 30, 50, 55)
#define BATTERING_RAM_MODEL "models/objects/vehicle_battering_ram.mdl"
IMPLEMENT_SERVERCLASS_ST(CVehicleBatteringRam, DT_VehicleBatteringRam)
END_SEND_TABLE();
LINK_ENTITY_TO_CLASS(vehicle_battering_ram, CVehicleBatteringRam);
PRECACHE_REGISTER(vehicle_battering_ram);
// CVars
ConVar vehicle_battering_ram_health( "vehicle_battering_ram_health","800", FCVAR_NONE, "Battering ram health" );
ConVar vehicle_battering_ram_damage( "vehicle_battering_ram_damage","300", FCVAR_NONE, "Battering ram damage" );
ConVar vehicle_battering_ram_damage_boostmod( "vehicle_battering_ram_damage_boostmod", "1.5", FCVAR_NONE, "Battering ram boosted damage modifier" );
ConVar vehicle_battering_ram_mindamagevel( "vehicle_battering_ram_mindamagevel","100", FCVAR_NONE, "Battering ram velocity for min damage" );
ConVar vehicle_battering_ram_maxdamagevel( "vehicle_battering_ram_maxdamagevel","260", FCVAR_NONE, "Battering ram velocity for max damage" );
ConVar vehicle_battering_ram_impact_time( "vehicle_battering_ram_impact_time", "1.0", FCVAR_NONE, "Battering ram impact wait time." );
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
CVehicleBatteringRam::CVehicleBatteringRam()
{
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CVehicleBatteringRam::Precache()
{
PrecacheModel( BATTERING_RAM_MODEL );
PrecacheVGuiScreen( "screen_vehicle_battering_ram" );
PrecacheVGuiScreen( "screen_vulnerable_point");
PrecacheScriptSound( "VehicleBatteringRam.BashSound" );
BaseClass::Precache();
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CVehicleBatteringRam::Spawn()
{
SetModel( BATTERING_RAM_MODEL );
// This size is used for placement only...
UTIL_SetSize(this, BATTERING_RAM_MINS, BATTERING_RAM_MAXS);
m_takedamage = DAMAGE_YES;
m_iHealth = vehicle_battering_ram_health.GetInt();
m_nBarrelAttachment = LookupAttachment( "barrel" );
SetType( OBJ_BATTERING_RAM );
SetMaxPassengerCount( 4 );
// SetTouch( BashTouch );
m_flNextBashTime = 0.0f;
BaseClass::Spawn();
}
//-----------------------------------------------------------------------------
// Does the player use his normal weapons while in this mode?
//-----------------------------------------------------------------------------
bool CVehicleBatteringRam::IsPassengerUsingStandardWeapons( int nRole )
{
return (nRole > 1);
}
//-----------------------------------------------------------------------------
// Purpose: Gets info about the control panels
//-----------------------------------------------------------------------------
void CVehicleBatteringRam::GetControlPanelInfo( int nPanelIndex, const char *&pPanelName )
{
pPanelName = "screen_vulnerable_point";
}
//-----------------------------------------------------------------------------
// Purpose: Ram!!!
//-----------------------------------------------------------------------------
void CVehicleBatteringRam::VPhysicsCollision( int index, gamevcollisionevent_t *pEvent )
{
int otherIndex = !index;
CBaseEntity *pEntity = pEvent->pEntities[otherIndex];
// We only damage objects...
// And only if we're travelling fast enough...
if ( !pEntity->IsSolid( ) )
return;
// Ignore shields..
if ( pEntity->GetCollisionGroup() == TFCOLLISION_GROUP_SHIELD )
return;
// Ignore anything that's not an object
if ( pEntity->Classify() != CLASS_MILITARY && !pEntity->IsPlayer() )
return;
// Ignore teammates
if ( InSameTeam( pEntity ))
return;
// Ignore invulnerable stuff
if ( pEntity->m_takedamage == DAMAGE_NO )
return;
// See if we can damage again? (Time-based)
if ( m_flNextBashTime > gpGlobals->curtime )
return;
// Use the attachment point to make sure we damage stuff that hit our front
// FIXME: Should we be using hitboxes here?
// And damage them all
// We only damage objects...
QAngle vecAng;
Vector vecSrc, vecAim;
GetAttachment( m_nBarrelAttachment, vecSrc, vecAng );
// Check the forward direction
Vector forward;
AngleVectors( vecAng, &forward );
// Did we hit it in front of the vehicle?
Vector vecDelta;
VectorSubtract( pEntity->WorldSpaceCenter(), vecSrc, vecDelta );
if ( ( DotProduct( vecDelta, forward ) <= 0 ) || pEntity->IsPlayer() )
{
BaseClass::VPhysicsCollision( index, pEvent );
return;
}
// Call our parents base class.
BaseClass::BaseClass::VPhysicsCollision( index, pEvent );
// Do damage based on velocity (and only if we were heading forward)
Vector vecVelocity = pEvent->preVelocity[index];
if (DotProduct( vecVelocity, forward ) <= 0)
return;
CTakeDamageInfo info;
info.SetInflictor( this );
info.SetAttacker( GetDriverPlayer() );
info.SetDamageType( DMG_CLUB );
float flMaxDamage = vehicle_battering_ram_damage.GetFloat();
float flMaxDamageVel = vehicle_battering_ram_maxdamagevel.GetFloat();
float flMinDamageVel = vehicle_battering_ram_mindamagevel.GetFloat();
float flVel = vecVelocity.Length();
if (flVel < flMinDamageVel)
return;
// FIXME: Play a sound here...
EmitSound( "VehicleBatteringRam.BashSound" );
// Apply the damage
float flDamageFactor = flMaxDamage;
if ( IsBoosting() )
{
flDamageFactor *= vehicle_battering_ram_damage_boostmod.GetFloat();
}
if ((flMaxDamageVel > flMinDamageVel) && (flVel < flMaxDamageVel))
{
// Use less damage when we're not moving fast enough
float flVelocityFactor = (flVel - flMinDamageVel) / (flMaxDamageVel - flMinDamageVel);
flVelocityFactor *= flVelocityFactor;
flDamageFactor *= flVelocityFactor;
}
UTIL_ScreenShakeObject( pEntity, vecSrc, 45.0f * flDamageFactor / flMaxDamage, 30.0f, 0.5f, 250.0f, SHAKE_START );
info.SetDamage( flDamageFactor );
Vector damagePos;
pEvent->pInternalData->GetContactPoint( damagePos );
Vector damageForce = pEvent->postVelocity[index] * pEvent->pObjects[index]->GetMass();
info.SetDamageForce( damageForce );
info.SetDamagePosition( damagePos );
PhysCallbackDamage( pEntity, info, *pEvent, index );
// Set next time ram time
m_flNextBashTime = gpGlobals->curtime + vehicle_battering_ram_impact_time.GetFloat();
}
//-----------------------------------------------------------------------------
// Here's where we deal with weapons, ladders, etc.
//-----------------------------------------------------------------------------
void CVehicleBatteringRam::OnItemPostFrame( CBaseTFPlayer *pDriver )
{
// I can't do anything if I'm not active
if ( !ShouldBeActive() )
return;
if ( GetPassengerRole( pDriver ) != VEHICLE_ROLE_DRIVER )
return;
if ( pDriver->m_nButtons & (IN_ATTACK2 | IN_SPEED) )
{
StartBoost();
}
BaseClass::OnItemPostFrame( pDriver );
}
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