How to stop this weird value flipping?

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#1

I’ve been trying to fix my rotation for a small boat project. I have a boat the floats up and down with the waves, but it doesn’t rotate with them. Currently, I get this weird effect where the value is what it should be, but every other frame it’s flipped.
Current code is: (v is the boat model, front & back are parts that go up and down with the water)

local pos1 = primaryPart:FindFirstChild('Front').Position
local pos2 = primaryPart:FindFirstChild('Back').Position
local heightDif = pos1.Y - pos2.Y
local distance = (pos1 - pos2).Magnitude
local angle = math.atan(heightDif / distance)
angle = math.deg(angle)
print(angle)

v:SetPrimaryPartCFrame(v.PrimaryPart.CFrame * CFrame.Angles(math.rad(angle), 0, 0))

The output looks like this:
image

Thanks for any help

1 Like
#2

Try to set the second angle set thing to an other variable, and change all the variables to it prints it correct and stuff

#3

If you want the value to not be negative you use math.abs