Hinge constraint servo facing mouse

Help and Feedback Scripting Support
#1

Hello.

I’ve been working on this T72B3 model recently, and have been having a lot of issues working out the turret.

Here’s my code for reference:

--MODULE:
local m={}
m.TurnTargetAngle = function(target: Vector3,origin: Vector3)
    local delta = target - origin
    local new_delta = Vector3.new(delta.x, 0, delta.z)
    local unit_delta = new_delta.unit
    local angle = math.atan2(unit_delta.z, unit_delta.x)
    return (-math.deg(angle)+math.pi)
end
return m;

--SCRIPT:
coroutine.resume(coroutine.create(function()
    RunService.Heartbeat:Connect(function()
        if currentdriver ~= nil then
            local MP = MousePosition:InvokeClient(game.Players[tostring(currentdriver)])
            local t = TargetModule.TurnTargetAngle(MP,Parts.TurretRing1.Position)
            Parts.TurretRing2.Rotator.TargetAngle = t
        end
    end)
end))

And here’s what’s happening:

image
image1180×502 51.8 KB

image
image1120×443 49.6 KB

Does anybody know what’s wrong?

#2

I would love to help you but cannot see what the problem is from the images shown.
I believe the turret simply turns round eg has no tilt so images showing the view from above would show more about the rotation issue.
Can you provide one for me?

#3

Let me sum it up as well as I can.

When I point the mouse towards a specific direction, the turret ring decides to turn to the side.

Here’s the best visualization I can make:

image

In terms of rotation, the bottom face points towards the “target”, and the front face points towards the sky.

(To clarify, this is using a hinge constraints target angle)

#4

From what I can find it seems to be due to the fact that math.atan2 is relative to the positive world X axis. I’m no vector math genius so my solution is to mess around with negatives and subtracting rotation and stuff

Edit: I solved it by subtracting the WorldOrientation.Y of the Attachment0 of the turret base servo

#5

Can you maybe explain it in a little more detail?

When I try to subtract the angle by (A0.Y-TargetAngle) it comes out to some absurd number.
image

When I try subtracting (A0.Y-TargetAngle) by the angle I get a weird assortment of random numbers.
image

I’m trying a few other methods and editing this as I go, but so far nothing has worked.

AS OF NOW THIS IS WHAT IT LOOKS LIKE:
image

SCRIPT:

    RunService.Heartbeat:Connect(function()
        if currentdriver ~= nil then
            local MP = MousePosition:InvokeClient(game.Players[tostring(currentdriver)])
            local t = TargetModule.TurnTargetAngle(MP,Parts.TurretRing2.Armor.WorldPosition,(Parts.TurretRing2.Rotator.Attachment0.WorldOrientation.Y))
            Parts.TurretRing2.Rotator.TargetAngle = t
        end
    end)

MODULE:

local m={}
m.TurnTargetAngle = function(target: Vector3,origin: Vector3, sa)
    local delta = target - origin
    local new_delta = Vector3.new(delta.x, 0, delta.z)
    local unit_delta = new_delta.unit
    local angle = math.atan2(unit_delta.z, unit_delta.x)
    print(sa-(-math.deg(angle)+math.pi))
    return sa-(-math.deg(angle)+math.pi)
end
return m;
#6

You have to do it the other way around, such that sa is subtracting from the final angle.

Here is the code that has worked for me:

(-math.deg(AngleYaw)) - TurretAttach.WorldOrientation.Y

where AngleYaw is angle and TurretAttach.WorldOrientation.Y is sa

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