Play in Forkphorus for optimal performance and ability to add more planets! https://forkphorus.github.io/#368598316 View (default) mode: -Arrow keys to move around space. -Spacebar to create 2 to 200 new planets/objects. Above 20 may start to lag the project, unless you're using Forkphorus (up to about 150 works fine there). -"i" key to zoom in. -"o" key to zoom out. -"z" key to change zoom mode (default is zooming in/out on the middle of the screen, the other mode makes it zoom in/out toward your mouse) -"h" key to hide/show menu. -"m" key to mute or unmute the music. -"p" key to pause/unpause. -"t" key to turn trails on/off. Edit mode: -To move the selection arrow from planet to planet, press the right and left arrow keys. -Selecting a planet will allow you to change its features, delete it, or center the view on it. -There are two editing features: select and create. -To create a new planet/object, simply click on the screen in create mode and enter the initial properties. (Note: You can move around and zoom in/out in create mode but not in select mode.) There is also a feature to get and enter save codes. This allows you to share your "solar systems" with other Scratchers! When entering new planet settings, for mass your answer will make it 10^answer, so there is a small range of useful values. For example, since the starting range of masses is 10^14 to 10^17, you probably want to stay in the range of 12 (small) to 20 (large) for a new exponent. Larger mass means more attractive force.
I made a small change that allows the planets in a system to all orbit the same direction.
