An early prototype of a Kerbal Space Program-like game I am planning. Still buggy and missing a lot of planned features, so don't complain yet. Use the arrow keys. Press space to change reference frames. I will come back to this once all the craziness around 3d Solar System dies down.
Planned alpha features: -Fix all the bugs: -Calculation of instantaneous orbital elements to put orbits fully on-rails without player input and allow for simpler orbital rendering (most important). (The first part of this is done.) -Better control of the ship. -Relative velocity to Earth's surface and Earth's center -Ability to change frame of reference (Done!) -Apoapsis/periapsis markers (Done!) -Ability to adjust throttle -Delta V and specific impulse -Seamless zooming at launch (work around sprite size limit of Earth) Changelog v0.5.2 Vastly simplified orbital rendering in preparation for stable orbit implementation. Added reference frames and periapsis/apoapsis markers. v0.5.1 Little has changed on the surface, but I now calculate osculating orbital elements. This will allow me to alternate between two different types of orbital calculation, thus eliminating a lot of bugs and making future development much more convenient. v0.5 Implemented the vis-viva equation to calculate SMA and orbital period. This makes rendering large orbits less laggy and also allows for a cool new statistic. v0.4 Added air resistance relative to Earth's surface. The atmosphere moves with the Earth and the predicted orbit takes into account air resistance. Fixed the spacecraft bouncing on the surface at high time speed. Fixed the fuel meter sometimes going negative. v0.3 Scaled all units to reflect real life, added MET. v0.2 Added time speed and zoom, made the Earth more realistic. v0.1 Added orbital rendering, altitude and velocity meters, showed angular momentum conservation. v0.0 Figured out the equations for gravity. Added all the basic features of spaceflight and maneuvering around the Earth.
