Method clear

radiantcore/particles/ParticleDef.h:53–57

Clears stage and depth hack information Name and observers are NOT cleared

	// Clears stage and depth hack information
	// Name and observers are NOT cleared
	void clear()
	{
		_depthHack = false;
		_stages.clear();
	}

    // IParticleDef implementation
    sigc::signal<void>& signal_changed() override;