Improved momentum stability.

README.md

src/CMakeLists.txt

src/Common.hpp

src/ImageBuffer.cpp

src/ImageBuffer.hpp

src/Particle.cpp

src/Particle.hpp

src/ParticleImage.cpp

src/ParticleImage.hpp

src/QDrawingArea.hpp

src/QPlayer.cpp

src/QPlayer.hpp

src/QWindow.cpp

src/QWindow.hpp