Two Dimensional N-body Simulation
Mouse operation:
- click: select a node
- double click: create a new node
- right click: set velocity of a node
- drag: move a node
- M: increase mass
- m: decrease mass
- R: increase rsdius
- r: decrease rsdius
- v: show/hide velocity vector
- T: increase time slice
- t: increase time slice
- space: start/pause
- escape: restart