Team Fortress 2 Source Code as on 22/4/2020
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=============================================================================//
#include "cbase.h"
#include "basecsgrenade_projectile.h"
float GetCurrentGravity( void );
#ifdef CLIENT_DLL
#include "c_cs_player.h"
#else
#include "bot_manager.h"
#include "cs_player.h"
#include "soundent.h"
#include "te_effect_dispatch.h"
#include "KeyValues.h"
BEGIN_DATADESC( CBaseCSGrenadeProjectile )
DEFINE_THINKFUNC( DangerSoundThink ),
END_DATADESC()
#endif
IMPLEMENT_NETWORKCLASS_ALIASED( BaseCSGrenadeProjectile, DT_BaseCSGrenadeProjectile )
BEGIN_NETWORK_TABLE( CBaseCSGrenadeProjectile, DT_BaseCSGrenadeProjectile )
#ifdef CLIENT_DLL
RecvPropVector( RECVINFO( m_vInitialVelocity ) )
#else
SendPropVector( SENDINFO( m_vInitialVelocity ),
20, // nbits
0, // flags
-3000, // low value
3000 // high value
)
#endif
END_NETWORK_TABLE()
#ifdef CLIENT_DLL
void CBaseCSGrenadeProjectile::PostDataUpdate( DataUpdateType_t type )
{
BaseClass::PostDataUpdate( type );
if ( type == DATA_UPDATE_CREATED )
{
// Now stick our initial velocity into the interpolation history
CInterpolatedVar< Vector > &interpolator = GetOriginInterpolator();
interpolator.ClearHistory();
float changeTime = GetLastChangeTime( LATCH_SIMULATION_VAR );
// Add a sample 1 second back.
Vector vCurOrigin = GetLocalOrigin() - m_vInitialVelocity;
interpolator.AddToHead( changeTime - 1.0, &vCurOrigin, false );
// Add the current sample.
vCurOrigin = GetLocalOrigin();
interpolator.AddToHead( changeTime, &vCurOrigin, false );
}
}
int CBaseCSGrenadeProjectile::DrawModel( int flags )
{
// During the first half-second of our life, don't draw ourselves if he's
// still playing his throw animation.
// (better yet, we could draw ourselves in his hand).
if ( GetThrower() != C_BasePlayer::GetLocalPlayer() )
{
if ( gpGlobals->curtime - m_flSpawnTime < 0.5 )
{
C_CSPlayer *pPlayer = dynamic_cast<C_CSPlayer*>( GetThrower() );
if ( pPlayer && pPlayer->m_PlayerAnimState->IsThrowingGrenade() )
{
return 0;
}
}
}
return BaseClass::DrawModel( flags );
}
void CBaseCSGrenadeProjectile::Spawn()
{
m_flSpawnTime = gpGlobals->curtime;
BaseClass::Spawn();
}
#else
void CBaseCSGrenadeProjectile::PostConstructor( const char *className )
{
BaseClass::PostConstructor( className );
TheBots->AddGrenade( this );
}
CBaseCSGrenadeProjectile::~CBaseCSGrenadeProjectile()
{
TheBots->RemoveGrenade( this );
}
void CBaseCSGrenadeProjectile::Spawn( void )
{
BaseClass::Spawn();
SetSolidFlags( FSOLID_NOT_STANDABLE );
SetMoveType( MOVETYPE_FLYGRAVITY, MOVECOLLIDE_FLY_CUSTOM );
SetSolid( SOLID_BBOX ); // So it will collide with physics props!
// smaller, cube bounding box so we rest on the ground
SetSize( Vector ( -2, -2, -2 ), Vector ( 2, 2, 2 ) );
}
void CBaseCSGrenadeProjectile::DangerSoundThink( void )
{
if (!IsInWorld())
{
Remove( );
return;
}
if( gpGlobals->curtime > m_flDetonateTime )
{
Detonate();
return;
}
CSoundEnt::InsertSound ( SOUND_DANGER, GetAbsOrigin() + GetAbsVelocity() * 0.5, GetAbsVelocity().Length( ), 0.2 );
SetNextThink( gpGlobals->curtime + 0.2 );
if (GetWaterLevel() != 0)
{
SetAbsVelocity( GetAbsVelocity() * 0.5 );
}
}
//Sets the time at which the grenade will explode
void CBaseCSGrenadeProjectile::SetDetonateTimerLength( float timer )
{
m_flDetonateTime = gpGlobals->curtime + timer;
}
void CBaseCSGrenadeProjectile::ResolveFlyCollisionCustom( trace_t &trace, Vector &vecVelocity )
{
//Assume all surfaces have the same elasticity
float flSurfaceElasticity = 1.0;
//Don't bounce off of players with perfect elasticity
if( trace.m_pEnt && trace.m_pEnt->IsPlayer() )
{
flSurfaceElasticity = 0.3;
}
// if its breakable glass and we kill it, don't bounce.
// give some damage to the glass, and if it breaks, pass
// through it.
bool breakthrough = false;
if( trace.m_pEnt && FClassnameIs( trace.m_pEnt, "func_breakable" ) )
{
breakthrough = true;
}
if( trace.m_pEnt && FClassnameIs( trace.m_pEnt, "func_breakable_surf" ) )
{
breakthrough = true;
}
if (breakthrough)
{
CTakeDamageInfo info( this, this, 10, DMG_CLUB );
trace.m_pEnt->DispatchTraceAttack( info, GetAbsVelocity(), &trace );
ApplyMultiDamage();
if( trace.m_pEnt->m_iHealth <= 0 )
{
// slow our flight a little bit
Vector vel = GetAbsVelocity();
vel *= 0.4;
SetAbsVelocity( vel );
return;
}
}
float flTotalElasticity = GetElasticity() * flSurfaceElasticity;
flTotalElasticity = clamp( flTotalElasticity, 0.0f, 0.9f );
// NOTE: A backoff of 2.0f is a reflection
Vector vecAbsVelocity;
PhysicsClipVelocity( GetAbsVelocity(), trace.plane.normal, vecAbsVelocity, 2.0f );
vecAbsVelocity *= flTotalElasticity;
// Get the total velocity (player + conveyors, etc.)
VectorAdd( vecAbsVelocity, GetBaseVelocity(), vecVelocity );
float flSpeedSqr = DotProduct( vecVelocity, vecVelocity );
// Stop if on ground.
if ( trace.plane.normal.z > 0.7f ) // Floor
{
// Verify that we have an entity.
CBaseEntity *pEntity = trace.m_pEnt;
Assert( pEntity );
SetAbsVelocity( vecAbsVelocity );
if ( flSpeedSqr < ( 30 * 30 ) )
{
if ( pEntity->IsStandable() )
{
SetGroundEntity( pEntity );
}
// Reset velocities.
SetAbsVelocity( vec3_origin );
SetLocalAngularVelocity( vec3_angle );
//align to the ground so we're not standing on end
QAngle angle;
VectorAngles( trace.plane.normal, angle );
// rotate randomly in yaw
angle[1] = random->RandomFloat( 0, 360 );
// TODO: rotate around trace.plane.normal
SetAbsAngles( angle );
}
else
{
Vector vecDelta = GetBaseVelocity() - vecAbsVelocity;
Vector vecBaseDir = GetBaseVelocity();
VectorNormalize( vecBaseDir );
float flScale = vecDelta.Dot( vecBaseDir );
VectorScale( vecAbsVelocity, ( 1.0f - trace.fraction ) * gpGlobals->frametime, vecVelocity );
VectorMA( vecVelocity, ( 1.0f - trace.fraction ) * gpGlobals->frametime, GetBaseVelocity() * flScale, vecVelocity );
PhysicsPushEntity( vecVelocity, &trace );
}
}
else
{
// If we get *too* slow, we'll stick without ever coming to rest because
// we'll get pushed down by gravity faster than we can escape from the wall.
if ( flSpeedSqr < ( 30 * 30 ) )
{
// Reset velocities.
SetAbsVelocity( vec3_origin );
SetLocalAngularVelocity( vec3_angle );
}
else
{
SetAbsVelocity( vecAbsVelocity );
}
}
BounceSound();
// tell the bots a grenade has bounced
CCSPlayer *player = ToCSPlayer(GetThrower());
if ( player )
{
IGameEvent * event = gameeventmanager->CreateEvent( "grenade_bounce" );
if ( event )
{
event->SetInt( "userid", player->GetUserID() );
event->SetFloat( "x", GetAbsOrigin().x );
event->SetFloat( "y", GetAbsOrigin().y );
event->SetFloat( "z", GetAbsOrigin().z );
gameeventmanager->FireEvent( event );
}
}
}
void CBaseCSGrenadeProjectile::SetupInitialTransmittedGrenadeVelocity( const Vector &velocity )
{
m_vInitialVelocity = velocity;
}
#define MAX_WATER_SURFACE_DISTANCE 512
void CBaseCSGrenadeProjectile::Splash()
{
Vector centerPoint = GetAbsOrigin();
Vector normal( 0, 0, 1 );
// Find our water surface by tracing up till we're out of the water
trace_t tr;
Vector vecTrace( 0, 0, MAX_WATER_SURFACE_DISTANCE );
UTIL_TraceLine( centerPoint, centerPoint + vecTrace, MASK_WATER, NULL, COLLISION_GROUP_NONE, &tr );
// If we didn't start in water, we're above it
if ( tr.startsolid == false )
{
// Look downward to find the surface
vecTrace.Init( 0, 0, -MAX_WATER_SURFACE_DISTANCE );
UTIL_TraceLine( centerPoint, centerPoint + vecTrace, MASK_WATER, NULL, COLLISION_GROUP_NONE, &tr );
// If we hit it, setup the explosion
if ( tr.fraction < 1.0f )
{
centerPoint = tr.endpos;
}
else
{
//NOTENOTE: We somehow got into a splash without being near water?
Assert( 0 );
}
}
else if ( tr.fractionleftsolid )
{
// Otherwise we came out of the water at this point
centerPoint = centerPoint + (vecTrace * tr.fractionleftsolid);
}
else
{
// Use default values, we're really deep
}
CEffectData data;
data.m_vOrigin = centerPoint;
data.m_vNormal = normal;
data.m_flScale = random->RandomFloat( 1.0f, 2.0f );
if ( GetWaterType() & CONTENTS_SLIME )
{
data.m_fFlags |= FX_WATER_IN_SLIME;
}
DispatchEffect( "gunshotsplash", data );
}
#endif // !CLIENT_DLL