How do I make a tank with a rotating turret?

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#1

I’m trying to make a tank game, I’ve already made the tank movable by WASD, now I want to make a turret that the player can rotate with two other buttons (undecided which ones), like F and G, though I’m not exactly sure how to do it. I can make the turret rotate, but I don’t know how to make the turret stay on the tank when the tank is moving. When I use weld constraints, when I try to rotate the turret, the whole tank rotates. Hard to explain so here’s a video:

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#2

You could connect the turret to the rest of the tank with a normal weld. Then you can just multiply the C0 of the weld with a CFrame created with the CFrame.Angles() function.

#3

I’ve never worked with welds before so I might be missing something here, but when I use a normal weld, the whole tank rotates when I try to rotate only the turret.

#4

Oh never mind that, I fixed it, but I’m kind of clueless on how to do the scripting part. (I’m quite the beginner at scripting and welds are new to me)

#5

If you want to weld the turret to the rest of the tank in edit mode in studio, you can write something like this into your command bar

local hullPart = --the part in the tank's hull that you want to weld the turret to
loca turretPart = -- the part in the turret that you want to weld to the hull

local w = Instance.new("Weld")
w.Part0 = hullPart
w.Part1 = turretPart
w.C0 = hullPart.CFrame:ToObjectSpace(turretPart.CFrame) -- gets the relative CFrame of turretPart on hullPart's local axis and sets that as the C0.
w.C1 = CFrame.new()
w.Name = "TurretWeld"
w.Parent = hullPart

And, to rotate it in a script or local script you define the hullPart again and do something like this.

local weld = hullPart.TurretWeld
weld.C0 *= CFrame.Angles(0, --[[the angle value here]], 0) -- the angle must be a radian value. Degrees can be converted to radians with the math.rad function or *math.pi/180.