simulation_files = files( 'Air.cpp', 'Element.cpp', 'ElementClasses.cpp', 'GOLString.cpp', 'Particle.cpp', 'SaveRenderer.cpp', 'Sign.cpp', 'SimulationData.cpp', 'Simulation.cpp', ) subdir('elements') subdir('simtools') subdir('gravity') powder_files += simulation_files render_files += simulation_files powder_files += files( 'Editing.cpp', 'SimTool.cpp', 'ToolClasses.cpp', 'Snapshot.cpp', 'SnapshotDelta.cpp', ) render_files += files( 'NoToolClasses.cpp', )