Update 2020/4/9: Hotfix to improve physgun hitreg and velocity impulse code.

Physgun can freeze things now (finally) (press left on the joystick/pad). Physgun can grab things while holding the trigger.
Added continuous toolgun settings adjustment, with 2 decimal places. Hold the stick up or down to increase/decrease variables faster.
Fixed slider and hinge friction
Added appropriate settings limits. Negative friction doesn’t do anything, I tried it. 0 or below spring constant completely breaks physics for everything. Spring constants and damping constants above 30 might as well be rigid ropes. Adv. ballsocket min/max angles limited to [-180, 180]
Set reasonable defaults for settings, particularly spring constant to 2
Removed settings that didn’t do anything, or work as documented
Minor changes

Added a much nicer tool menu, with several settings per tool, and slider and advanced ballsocket constraints.

Updated pause/spawn menu script so multiplayer clients can see it (thanks as always Rectus)
Added a panel to the map to spawn physgun/toolgun/locomotion tool/melon
Added Physgun/Toolgun spawnicons to menu
Added Hinge toolmode
Added Spring toolmode
Tool settings! or the start of it. just nocollide on constraints right now
Nostalgic toolgun sounds
Faster toolgun firerate
Physgun rotation uses nonlinear function for stronger yet dampened rotation impulses, giving much stronger rotational grip on contraptions
Map has invisible walls on sky so you shouldn't be able to lose things (or yourself) outside the map, or at least not as easily
Physgun can pull things closer to you, so it should be easier to grab items with your hand
Map ambient lighting volume is taller, and ambient lighting is a little darker
Fixed the door to the white building
Added a "secret" button to clean up the map, useful when multiplayer gets out of hand

Todo priority: nicer tool mode/settings/adjustment interface, more toolmodes, more settings

Better physgun model, textures, particles, thanks to BlueFlytrap. Better physgun physics: grabs rotation now, and 5x more responsive. Better map. Better vr controller attachment points on the physgun and toolgun.

Better toolgun model. Working on better physgun model. Thanks for permission, Garry.

Has a replica of the spawn area and garage now.

Created GMod Simulator.