How Can I Stop Rotation Resetting During a Tween?

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#1

I am currently working on a tower defense game and I recently completed the first map for the game. Before I was using Humanoid:MoveTo() to move the humanoid along the map’s path, but stretches of the course are too long, so the MoveTo times out before reaching the next segment. So, as a result I moved to using tweening to move my enemy models to the end of the track. This works great, except for one thing. Whenever I tween the HumanoidRootPart of my enemies, the orientation slowly resets itself back to 0 during the tween.

My issue is that, while tweening my enemies to along my path, their orientation is slowly reset to 0 during the tween. Is there anyway I can stop this? I am not sure of what to do or how to do it.
Here is a video that shows them slowly rotating (Sorry about how short it is):

Here is the code for my tween:

for i = 1, (#trackParts:GetChildren() - 1), 1 do
    local trackPart = trackParts[i]
    local previousValue = i - 1
    local enemyPos = enemyClone.PrimaryPart.Position
    local trackPartPosition = trackPart.Position
    local newCFrame = CFrame.new(enemyPos, trackPartPosition)
    enemyClone.HumanoidRootPart.BodyGyro.CFrame = newCFrame
    enemyClone:SetPrimaryPartCFrame(newCFrame)
    local endPoint = {
    	CFrame = CFrame.new(trackPart.Position)
    }
    local tweenInfo = TweenInfo.new(((((trackParts:FindFirstChild(i).Position - trackParts:FindFirstChild(previousValue).Position).Magnitude) / 7.5) * enemyClone.Humanoid.WalkSpeed), Enum.EasingStyle.Linear, Enum.EasingDirection.Out)
    local tween = tweenService:Create(enemyClone.HumanoidRootPart, tweenInfo, endPoint)
    tween:Play()
    tween.Completed:Wait(0.1)
end

If anyone knows how to stop the orientation from resetting the tween that would be really helpful! I have already tried using a BodyGyro but I am not familiar enough with them to know if I set it up properly.

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#2

Inside the tween, make it a dictionary right after tweenInfo with {}. Then just set the rotation CFrame to the current CFrame of the zombie. So it is setting to itself the whole time. I am almost sure that would work.

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#3

I believe that you are resetting the position with CFrame.new(). Do this instead.

local endPoint = {
     CFrame = trackPart.CFrame
}
#4

Ah yes, what CheekySquid said should work better and less code will be used.

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#5

It still rotates the enemies during the tween when I changed it to that.

#6

Could you send me the new code?

#7 
for i = 1, (#trackParts:GetChildren() - 1), 1 do
	local trackPart = trackParts[i]
	local previousValue = i - 1
	local enemyPos = enemyClone.PrimaryPart.Position
	local trackPartPosition = trackPart.Position
	local newCFrame = CFrame.new(enemyPos, trackPartPosition)
	enemyClone.HumanoidRootPart.BodyGyro.CFrame = newCFrame
	enemyClone:SetPrimaryPartCFrame(newCFrame)
	local endPoint = {
		CFrame = trackPart.CFrame
	}
	local tweenInfo = TweenInfo.new(((((trackParts:FindFirstChild(i).Position - trackParts:FindFirstChild(previousValue).Position).Magnitude) / 7.5) * enemyClone.Humanoid.WalkSpeed), Enum.EasingStyle.Linear, Enum.EasingDirection.Out)
	local tween = tweenService:Create(enemyClone.HumanoidRootPart, tweenInfo, endPoint)
    tween:Play()
    tween.Completed:Wait(0.1)
end

That was the only part I changed

#8

I would try what @Coburncode did. I can’t think of why immediately, and the CFrame constructor that used a lookVector was removed I believe.

#9

Try setting the direction directly based on the zombie’s and track’s positions.

	local endPoint = {
		CFrame = CFrame.new(
			trackPart.Position,
			(newFrame.Position-trackPart.Position) -- might need to invert this
		)
	}
#10

The HumanoidRootPart still rotates during the tween. Could this have anything to do with the orientation or another property of the part I am tween the enemies to?
Edit: All of the track parts I tween the enemies to have an orientation of 0 on each axis.

#11

I ended up solving my problem by tweening to the track part position instead of the cframe. Thanks to those who gave me potential solutions though!

#12

CFrame values include position and rotation. If your creating a CFrame with just position, then it’s orientation will get reset. You can create CFrame angles with CFrame.Angles(x, y, z) in radians.

#13

Sorry for the pretty late reply. I ended up figuring out that was the issue so I ended up tweening with position instead of CFrame. I’ll mark you as solution though since you mentioned the part that was causing the issue.