Orrery

A 2D universe sandbox in Java.

Controls:

WASD or ARROW KEYS - Move the camera
1 - Select Planet (For Placement)
2 - Select Star (For Placement)
3 - Select Black Hole (For Placement)
Left Click - Place a selected entity object, hold for larger objects and aim in the direction you want the initial velocity to be.
R - Resets the simulaton (removes everything and resets camera)
C - Resets the camera to it's origin position
T - Draws trails behind entities
P - Pause the simulation
I - Zoom In
K - Zoom Out
TAB - Centers the camera on an entity, hit multiple times to cycle through
F3 - Debug mode, shows vectors + masses + velocity of the entities as well as important information in the top left.