DayZOfficialSourceCode/Scripts/4_world/static/misceffects.c

class MiscEffects : Managed
{
	protected static const int VEGE_COLLISION_COOLDOWN = 3000; // ms 
	protected static ref map <Object, float> m_VegeCollideColldowns = new map <Object, float>();
	
	// Called by individual clients when player collides with a vegetation
	static void PlayVegetationCollideParticles(Object object, DayZPlayerImplement player)
	{
		UpdateVegeCollisionCooldowns();
		if (m_VegeCollideColldowns.Get(object))
			return;
		
		int particleID;
		string particleName;
		string configPath = "CfgNonAIVehicles " + object.GetType() + " collisionParticle";
		GetGame().ConfigGetText(configPath, particleName);
		if (particleName == string.Empty)	// no ptc assigned
			return;
		
		particleID = ParticleList.GetParticleIDByName(particleName);
		vector playerPos = player.GetPosition();
		vector ptcPos = playerPos - object.GetPosition();
		
		ptcPos[0] = ptcPos[0] * Math.RandomFloat(0, 0.5); // randomize
		ptcPos[2] = ptcPos[2] * Math.RandomFloat(0, 0.5);
		
		ptcPos = playerPos - ptcPos;
		ptcPos[1] = playerPos[1] + Math.RandomFloat(0.5, 1.5);
		
		ParticleManager.GetInstance().PlayInWorld(particleID, ptcPos);
		
		m_VegeCollideColldowns.Insert(object, GetWorldTime());
	}
	
	protected static void UpdateVegeCollisionCooldowns()
	{
		float time = GetWorldTime();
		foreach (Object key, float cd : m_VegeCollideColldowns) 
		{
			if ((time - cd) > VEGE_COLLISION_COOLDOWN)
			{
				m_VegeCollideColldowns.Remove(key);
				break;
			}
		}
	}
}