Simulation Guide
Hotkeys
Space Start / Pause simulation
R Reset all parameters to defaults
N Randomize initial conditions
T Toggle motion trail visibility
C Clear current trail history
E Toggle energy / drift display
D Toggle damping (friction)
S Cycle time scale (0.25x - 2.0x)
+/- Increase / Decrease gravity
Mouse Controls
Drag Move masses (only when paused)
- End mass: Inverse Kinematics
- Mid mass: Adjust angle
Click Edit slider values directly
Panel Toggle control panel visibility
UI Buttons
Step Frame-by-frame (when paused)
Arrows Toggle velocity vectors
Recording
Record Captures CSV data while the simulation is playing
- If paused, recording shows “Waiting for sim” until you press Play
- Stop recording to enable the download button (CSV opens in Excel/Sheets)