void SkillAnimPanel::PaintParticle(SpendParticle* p)
{
if (!p)
return;
Color col(255, 255, 255, GetLifeFraction(p) * 255.0f);
vgui::surface()->DrawSetColor(col);
float fScale = ScreenHeight() / 768.0f;
float size = fScale * asw_skill_particle_size.GetFloat() * (1.0f - GetLifeFraction(p)); // particles get bigger as life runs out
float x = p->m_fXPos;
float y = p->m_fYPos;
vgui::Vertex_t points[4] =
{
vgui::Vertex_t( Vector2D(x-size, y-size), Vector2D(0,0) ),
vgui::Vertex_t( Vector2D(x+size, y-size), Vector2D(1,0) ),
vgui::Vertex_t( Vector2D(x+size, y+size), Vector2D(1,1) ),
vgui::Vertex_t( Vector2D(x-size, y+size), Vector2D(0,1) )
};
vgui::surface()->DrawTexturedPolygon( 4, points );
}
Vector CASW_Rocket::IntegrateRocketThrust( const Vector &vTargetDir, ///< direction of target
float flDist ) ///< distance to target
const
{
Vector vNewVelocity;
const float flSimulateScale = IsSimulatingOnAlternateTicks() ? 2 : 1 ;
// apply thrust in our desired direction
Vector vecThrust = vTargetDir * ASW_ROCKET_ACCELERATION * flSimulateScale;
if (asw_rocket_debug.GetInt() == 2)
{
Msg("vecThrust = %s\n", VecToString(vecThrust));
}
vNewVelocity = GetAbsVelocity() + vecThrust;
// apply drag
float fDrag = ASW_ROCKET_DRAG - (0.1f * GetLifeFraction()); // increase drag as lifetime goes on (to help stop rockets spinning around their target)
if (flDist < 300.0f && flDist > 0)
fDrag -= (1.0f - (flDist / 300.0f)) * 0.1f; // reduce drag further as we get close
vNewVelocity *= ASW_ROCKET_DRAG;
// cap velocity to our min/max
float speed = vNewVelocity.Length();
if ((speed > ASW_ROCKET_MAX_SPEED || speed < ASW_ROCKET_MIN_SPEED)
&& speed > 0)
{
vNewVelocity *= (ASW_ROCKET_MAX_SPEED / speed);
}
// thrust away from the ground if we get too low
trace_t tr;
UTIL_TraceLine( GetAbsOrigin(), GetAbsOrigin() - Vector( 0, 0, ROCKET_HOVER_HEIGHT ), MASK_SHOT, this, COLLISION_GROUP_NONE, &tr );
if ( tr.fraction != 1.0f )
{
if ( vNewVelocity.z < 0 )
{
vNewVelocity.z += tr.fraction * ASW_ROCKET_HOVER_THRUST;
if ( asw_rocket_debug.GetBool() )
Msg( "Rocket[%d] hover thrusting %f vel.z is now %f\n", entindex(), tr.fraction * ASW_ROCKET_HOVER_THRUST, vNewVelocity.z );
if ( vNewVelocity.z > 0 )
{
vNewVelocity.z = 0;
}
}
}
return vNewVelocity;
}
void CASW_Rocket::SeekThink( void )
{
// If we have a grace period, go solid when it ends
if ( m_flGracePeriodEndsAt )
{
if ( m_flGracePeriodEndsAt < gpGlobals->curtime )
{
RemoveSolidFlags( FSOLID_NOT_SOLID );
m_flGracePeriodEndsAt = 0;
}
}
Vector vNewVelocity = GetAbsVelocity();
if ( m_bFlyingWild )
{
// wobble crazily. Poll for a new target every quarter second, and if none is found, go
// careering off.
if ( gpGlobals->curtime >= m_flNextWobbleTime )
{
Assert( !m_hHomingTarget.Get() );
CBaseEntity *pHomingTarget = FindPotentialTarget();
if ( pHomingTarget )
{
SetTarget( pHomingTarget );
m_bFlyingWild = false;
}
else
{
// pick a new wobble direction
/*
m_vWobbleAngles = GetAbsAngles();
m_vWobbleAngles.y = m_vWobbleAngles.y + RandomFloat( -asw_rocket_wobble_amp.GetFloat(), asw_rocket_wobble_amp.GetFloat() ) ;
if ( m_vWobbleAngles.y < 0 )
{
m_vWobbleAngles.y = 360 + m_vWobbleAngles.y;
}
else if ( m_vWobbleAngles.y > 360 )
{
m_vWobbleAngles.y = fmod( m_vWobbleAngles.y, 360 );
}
*/
m_vWobbleAngles = GetAbsAngles();
m_vWobbleAngles.y = fmodf( m_vWobbleAngles.y + RandomFloat( -asw_rocket_wobble_amp.GetFloat(), asw_rocket_wobble_amp.GetFloat() ), 360 );
m_flNextWobbleTime = gpGlobals->curtime + asw_rocket_wobble_freq.GetFloat();
}
}
}
if ( !m_bFlyingWild )
{
Vector targetPos;
FindHomingPosition( &targetPos );
// find target direction
Vector vTargetDir;
VectorSubtract( targetPos, GetAbsOrigin(), vTargetDir );
float flDist = VectorNormalize( vTargetDir );
// find current direction
Vector vDir = GetAbsVelocity();
//float flSpeed = VectorNormalize( vDir );
vNewVelocity = IntegrateRocketThrust( vTargetDir, flDist );
// face direction of movement
QAngle finalAngles;
VectorAngles( vNewVelocity, finalAngles );
SetAbsAngles( finalAngles );
// set to the new calculated velocity
SetAbsVelocity( vNewVelocity );
}
else // wobble crazily
{
#pragma message("TODO: straighten out this math")
if ( gpGlobals->curtime >= m_flNextWobbleTime )
{
// pick a new wobble direction
m_vWobbleAngles = GetAbsAngles();
m_vWobbleAngles.y = fmodf( m_vWobbleAngles.y + RandomFloat( -asw_rocket_wobble_amp.GetFloat(), asw_rocket_wobble_amp.GetFloat() ), 360 );
m_flNextWobbleTime = gpGlobals->curtime + asw_rocket_wobble_freq.GetFloat();
}
QAngle finalAngles = GetAbsAngles();
finalAngles.y = ApproachAngle( m_vWobbleAngles.y, finalAngles.y, 360.f * (gpGlobals->curtime - GetLastThink()) );
Vector forward;
AngleVectors( finalAngles, &forward );
vNewVelocity = forward * FastSqrtEst( vNewVelocity.LengthSqr() );
if ( IsWallDodging() )
{
ComputeWallDodge( vNewVelocity );
finalAngles.y = ApproachAngle( m_vWobbleAngles.y, finalAngles.y, 360.f * (gpGlobals->curtime - GetLastThink()) );
}
vNewVelocity = IntegrateRocketThrust( forward, 0 );
// face direction of movement
SetAbsAngles( finalAngles );
// set to the new calculated velocity
SetAbsVelocity( vNewVelocity );
}
// blow us up after our lifetime
if (GetLifeFraction() >= 1.0f)
{
Explode();
}
else
{
// Think as soon as possible
SetNextThink( gpGlobals->curtime );
}
}
