I WANT EVERY GUN TO BE UNIQUE!
So here's my thoughts.
Assault rifles - have both vertical and roll recoil, because they're RIFLes.
Nato/European rifles have clockwise rifling barrel so their roll recoil goes from the right.
Russian weapons have counter-clockwise rifling barrel and their roll recoil goes from the left.
Same here for snipers and LMGs
Handguns - have only vertical recoil due to lost of rifling barrel
SMG - have vertical and horizontal recoil, but no roll at all because of straight barrel.
Shotguns - have only vertical and horizontal recoil.
NAMED TEMPERS:
1. STGW90 - straight downside-up recoil with a bit right roll deviations
2. HK416 - straight upside-down recoil, right roll
3. AK-47 - constant upside recoil with left-right jumps and left roll.
Working in progress.
2 comments
bullet weight = 7.7 gr
initial speed = 714 m/s
bullet hit impulse = speed (in hundreds meters)^2*weight/2 = 51*7.7/2 = 184.01 kg*m/s
weapon weight = 4300 gr (fully loaded)
weapon/bullet weight ratio =~597
=> weapon backfire impulse = 184.01/597 = 0.3 kg with 1.3 m/sec