Gravity demonstration

Controls:

A - decrease simulation speed

D - increase simulation speed

Left click & drag: move camera around

Right click & drag: spawn planet, move to change initial velocity; red trajectory indicates collision

                                  WASD in this mode to change location of planet

Scroll: zoom in/out

K : clears screen

F: focuses camera to nearest planet (to center of screen)

Space: Pause/Play

Shift + Scroll : change planet mass (can be changed whenever)

E: enter ship control mode

Ship control mode:

A - turn left

D - turn right

W - thrust engines

E: exit ship control mode

Extra Info:

Planets are simulated as point masses.

When masses are greater than 1024, the color goes from yellow, to white (3072 mass), to blue (4096). Lower masses select color from a list