Making an egg hatching animation

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#1

How would i go about making an animation with an egg infront of the players camera like bubble gum simulator

I know that i need to use renderstepped to position it infront and that works perfectly, its just i dont know how i would actually make it drop down and shake. Ive tried to tween it but that didnt work

Bubble gum simulator:
https://www.roblox.com/games/2512643572/SUPER-LUCK-EVENT-Bubble-Gum-Simulator?refPageId=f29ae929-213e-4888-b07f-36eb9cd55042

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#2

Its made with ViewPortFrames and Eggs are in View Port Frames they are tweening to center and making tween rotation

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#3

yeah thats what i thought at first before i saw this thread where one of the developers confirmed it was made by actual part infront of the camera, and viewport frames wouldnt allow effects and stuff like that

#4

Are you using workspace.CurrentCamera:GetRenderCFrame()?

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#5

no, could you explain how i could use that to help

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#6

That function will get the exact position of the users camera.

If you use some additional CFrames, you should be able to do something like:

game:GetService('RunService').RenderStepped:Connect(function()
    egg.CFrame = workspace.CurrentCamera:GetRenderCFrame() * CFrame.new(2,0,-3.5) 
end)

It’ll position the egg (if you set the variable of egg to a mesh / part for the egg) infront of the camera, to the right.

We can use TweenService to make it move up and down with additional CFrames.
From what I know this second, your only option is to use a CFrameValue and multiply that by the Camera’s CFrame to get where you’d like to place it.

So, if we use something like that, your code should look something like:

local creature = workspace.Creature
local egg = workspace.Egg

local TS = game:GetService('TweenService')
local NCF = Instance.new('CFrameValue')
NCF.Value = CFrame.new(2,10,-3.5) -- Make the egg higher than the camera can see

function hatchEgg()
	local tween = TS:Create(NCF, TweenInfo.new(1.5), {CFrame = CFrame.new(2,0,-3.5)}) -- Make a tween which would make the egg drop down
	tween:Play()
	tween.Completed:Connect(function() -- Let it complete before "hatching" the egg
		local hatchTween = TS:Create(egg, TweenInfo.new(0.5), {Size = Vector3.new(0,0,0)})
		local hatchTween2 = TS:Create(creature, TweenInfo.new(0.5), {Size = Vector3.new(1,1,1)}) Change the 1,1,1 to the Size of the creature to come out
		hatchTween:Play()
		hatchTween2:Play()
		hatchTween.Completed:Connect(function()
			NCF.Value = CFrame.new(2,10,-3.5) -- Make the egg higher than the camera can see, again.
			egg.Size = Vector3.new(1,1,1) -- Change the 1,1,1 to the Size of the egg, so it'll revert meaning it can be used more than once
		end)
	end)
end

game:GetService('RunService').RenderStepped:Connect(function()
    egg.CFrame = workspace.CurrentCamera:GetRenderCFrame() * NCF.Value
end)

[2023 EDIT]
This code is incredibly unoptimized and if possible you should ensure that your tweens (and generally common-used objects) are cached to prevent a memory leak.

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#7

where do you call the hatch egg function? (i am very late lol)

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#8

nevermind, i figured it out my self :slight_smile:

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#9

Where do you put the function?

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