DayZOfficialSourceCode/Scripts/3_game/effects/effectparticle/vehiclesmoke/enginesmoke.c

class EffEngineSmoke : EffVehicleSmoke
{
	private float m_Time;
	static private float m_UpdateInterval = 2;
	
	void EffEngineSmoke()
	{
		SetEnableEventFrame(true);
	}
	
	override void SetParticleStateLight()
	{
		SetParticleState( ParticleList.HATCHBACK_ENGINE_OVERHEATING );
	}
	
	override void SetParticleStateHeavy()
	{
		SetParticleState( ParticleList.HATCHBACK_ENGINE_OVERHEATED );
	}
	
	override void Event_OnFrameUpdate(float time_delta)
	{
		m_Time += time_delta;
		
		if (m_Time >= m_UpdateInterval)
		{
			m_Time = 0;
			
			Car parent = Car.Cast( GetAttachmentParent() );
				
			if (parent)
			{
				Particle p = GetParticle();
				if (p)
				{
					SetParticleState( p.GetParticleID() );
					
					float speed = parent.GetSpeedometerAbsolute();
					float lifetime_scale;
						
					if (speed < 100)
						lifetime_scale = (100 - speed) / 100;
					else
						lifetime_scale = 0.1;
						
					float birthrate_scale = 1 + (speed * 0.02 );
						
					p.ScaleParticleParamFromOriginal( EmitorParam.LIFETIME, lifetime_scale );
					p.ScaleParticleParamFromOriginal( EmitorParam.LIFETIME_RND, lifetime_scale );
					p.ScaleParticleParamFromOriginal( EmitorParam.BIRTH_RATE, birthrate_scale );
					p.ScaleParticleParamFromOriginal( EmitorParam.BIRTH_RATE_RND, birthrate_scale );
				}
			}
		}
	}
}