Tweening the Z Axis Only

Help and Feedback Scripting Support
1

So i’m trying to make a beam attack but I don’t want to refer to the Y or X axis at all, I don’t want to do something like this:

v.Size = v.Size + Vector3.new(anumber,anumber,anumber)

I don’t want to do this because when you get v.Size, it stays locked at that size which I don’t want, since i should repeatedly be changing the size

this is the current script

		for i, v in pairs(Folder:GetChildren()) do
			if v.Name == "Source" == false then
				if v.Name ~= "Inner" and v.Name ~= "Outter" and v.Name ~= "Wave" and v.Name ~= "Wave2" then
					local goal =  {
						v.Size.Z == Vector3.FromAxis(Enum.Axis.Z,800)
					}		
					goal.CFrame = v.CFrame * CFrame.new(0,0,-400)
					local info = TweenInfo.new(6)
					local tween = TweenService:Create(v,info,goal)
					tween:Play()
				end
			end
		end

but the problem with this is that i get:
Unable to cast to dictionary

2

The problem is that your goal parameter is incorrect. I don’t really understand what you meant when you wrote:

local goal =  {
				v.Size.Z == Vector3.FromAxis(Enum.Axis.Z,800)
		      }		
				goal.CFrame = v.CFrame * CFrame.new(0,0,-400)
3

It give the effect of moving forward
this was the old script

	for i, v in pairs(Folder:GetChildren()) do
			if v.Name == "Source" == false then
				if v.Name ~= "Inner" and v.Name ~= "Outter" and v.Name ~= "Wave" and v.Name ~= "Wave2" then
					local goal = {}
					goal.Size = v.Size + Vector3.new(0,0,800)
					goal.CFrame = v.CFrame * CFrame.new(0,0,-400)
					local info = TweenInfo.new(6)
					local tween = TweenService:Create(v,info,goal)
					tween:Play()
				end
			end
		end

this resulted in


but I want the beam to constantly get bigger then smaller using a spawn function, which is why I only want to tween the z axis

1 Like
4

I see, that looks epic by the way. So is the tween not working with this new script? If so are there any errors?

5

The only error i’m getting using this script is : ‘Unable to Cast to Dictionary’


		for i, v in pairs(Folder:GetChildren()) do
			if v.Name == "Source" == false then
				if v.Name ~= "Inner" and v.Name ~= "Outter" and v.Name ~= "Wave" and v.Name ~= "Wave2" then
					local goal =  {
						v.Size.Z == Vector3.FromAxis(Enum.Axis.Z,800)	,
						v.CFrame == v.CFrame * CFrame.new(0,0,-400)
					}
					local info = TweenInfo.new(6)
					local tween = TweenService:Create(v,info,goal)
					tween:Play()
				end
			end
		end
6

Oh I know the problem, you don’t need to say v.Size inside of the goal. Instead, just say the Size and CFrame part. Try this:

for i, v in pairs(Folder:GetChildren()) do
			if v.Name == "Source" == false then
				if v.Name ~= "Inner" and v.Name ~= "Outter" and v.Name ~= "Wave" and v.Name ~= "Wave2" then
					local goal =  {
						Size.Z == Vector3.FromAxis(Enum.Axis.Z,800)	,
					       CFrame == v.CFrame * CFrame.new(0,0,-400)
					}
					local info = TweenInfo.new(6)
					local tween = TweenService:Create(v,info,goal) --the first parameter is v so you don't include that in the goal.
					tween:Play()
				end
			end
		end
7

But now Size is an unkown global

8

I’m sorry I don’t know much about Vector3.FromAxis so I don’t think I can help you much. Good luck with your problem!

9

Alright then, i’ll revert to what I have since it’s only a minor effect

10

you have to have on = in the goal table and you can’t set a X, Y or Z value, because they are read only.

for i, v in pairs(Folder:GetChildren()) do
			if v.Name == "Source" == false then
				if v.Name ~= "Inner" and v.Name ~= "Outter" and v.Name ~= "Wave" and v.Name ~= "Wave2" then
					local goal =  {
						v.Size = Vector3.new(v.Size.X, v.Size.Y, 800)
					}		
					goal.CFrame = v.CFrame * CFrame.new(0,0,-400)
					local info = TweenInfo.new(6)
					local tween = TweenService:Create(v,info,goal)
					tween:Play()
				end
			end
		end
11

Size.Z is a locked datatype that can’t be tweened. Vector3 already has a Z parameter, so you can try tweening the size to a new Vector3 with a smaller/larger Z parameter.

		for i, v in pairs(Folder:GetChildren()) do
			if v.Name == "Source" == false then
				if v.Name ~= "Inner" and v.Name ~= "Outter" and v.Name ~= "Wave" and v.Name ~= "Wave2" then
					local goal =  {
						v.Size = Vector3.new(v.Size.X, v.Size.Y, 800)
					}		
					goal.CFrame = v.CFrame * CFrame.new(0,0,-400)
					local info = TweenInfo.new(6)
					local tween = TweenService:Create(v,info,goal)
					tween:Play()
				end
			end
		end

And don’t worry about the size changing when it’s facing a another direction. A part’s size is only local to the part itself.

12

@NamphaTheGreat @Bliksem18
When i do these code, I’m still getting ‘unable to cast to dictionary’

13

on what line do you get the error?

14

this part

local tween = TweenService:Create(v,info,goal)
15

I’m sorry. you have to say:

local goal =  {
	Size = Vector3.new(v.Size.X, v.Size.Y, 800)
}
16

it works now, but is there any way to rapidly change the Y and X axis? The tween just locks them at their original size

17

You could pause the tween with tween:Pause(). then you can change the size and then resume the tween with tween:Play()