Method SpawnWeatherParticles

TombEngine/Game/effects/weather.cpp:563–669

	}

	void EnvironmentController::SpawnWeatherParticles(const ScriptInterfaceLevel& level)
	{
		// Clean up dead particles.
		if (Particles.size() > 0)
		{
			Particles.erase(
				std::remove_if(
					Particles.begin(), Particles.end(),
					[](const WeatherParticle& part)
					{
						return !part.Enabled;
					}),
				Particles.end());
		}

		if (level.GetWeatherType() == WeatherType::None || level.GetWeatherStrength() == 0.0f)
			return;

		bool clustering = level.GetWeatherClustering();

		int newParticlesCount = 0;
		int density = WEATHER_PARTICLE_SPAWN_DENSITY * level.GetWeatherStrength();

		// Snow is falling twice as fast and must be spawned accordingly fast.
		if (level.GetWeatherType() == WeatherType::Snow)
			density *= 2;

		if (density > 0.0f && level.GetWeatherType() != WeatherType::None)
		{
			while (Particles.size() < WEATHER_PARTICLE_COUNT_MAX)
			{
				if (newParticlesCount > density)
					break;

				newParticlesCount++;

				float dist = 0;
				if (level.GetWeatherType() == WeatherType::Snow)
				{
					dist = WEATHER_SPAWN_DIST_SNOW;
				}
				else if (level.GetWeatherType() == WeatherType::Rain)
				{
					dist = WEATHER_SPAWN_DIST_RAIN;
				}
				else
				{
					dist = WEATHER_SPAWN_DIST_OTHER;
				}
				
				float radius = Random::GenerateInt(0, dist);
				short angle = Random::GenerateAngle();

				auto xPos = Camera.pos.x + ((int)(phd_cos(angle) * radius));
				auto zPos = Camera.pos.z + ((int)(phd_sin(angle) * radius));
				auto yPos = Camera.pos.y - (BLOCK(3) + Random::GenerateInt() & (BLOCK(4) - 1));
				
				auto outsideRoom = IsRoomOutside(xPos, yPos, zPos);