TweenBase

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抽象基礎類型為間接轉換處理器的子類；Tween 的父級。

概要

屬性

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方法

  • Cancel():void

    停止播放，重設暫停變數。如果你然後呼叫 TweenBase:Play()，暫停變數的屬性會恢復到其目的地，但需要完整長度的動畫才能完成。

  • Pause():void

    停止播放暫停的補間動畫。不會重設其進度變量，因此如果您呼叫 TweenBase:Play()，殺手將從暫停的那一刻起恢復播放。

  • Play():void

    開始播放擺補間動畫。注意，如果擺動已經開始，呼叫 Play() 沒有效果，除非擺動已經完成或已停止 (或由 TweenBase:Cancel() 或 TweenBase:Pause() 來停止)。

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屬性

PlaybackState

Enum.PlaybackState
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只閱取的屬性，顯示 Tween 動畫的當前階段。 查看 Enum.PlaybackState 以獲得每個狀態的說明。 使用 Tween:Play() 等功能。

範例程式碼

In this example a part is rotated by a Tween back and forth several times. The TweenInfo in this case is configured to make the tween repeat twice after the first playback and pause between each playback. A function is connected to when the tween's PlaybackState changes. When run, this function will fire whenever the tween starts, pauses between playback, and ends.

Tween PlaybackState
local TweenService = game:GetService("TweenService")



local part = Instance.new("Part")

part.Position = Vector3.new(0, 10, 0)

part.Anchored = true

part.Parent = workspace



local goal = {}

goal.Orientation = Vector3.new(0, 90, 0)



local tweenInfo = TweenInfo.new(1, Enum.EasingStyle.Quad, Enum.EasingDirection.InOut, 2, true, 0.5)



local tween = TweenService:Create(part, tweenInfo, goal)



local function onPlaybackChanged()

	print("Tween status has changed to:", tween.PlaybackState)

end



local playbackChanged = tween:GetPropertyChangedSignal("PlaybackState")

playbackChanged:Connect(onPlaybackChanged)



tween:Play()
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方法

Cancel

void

停止播放 Tween 並重設 tween 變量。

只重設暫停變數，而不是暫停後變更的屬性。如果您在暫停過程中取消補間動畫，屬性將不會重設為原始值。與 TweenBase:Pause() 在暫停結束後恢復完畢的動畫不同，它需要完整暫停的時間才能完成動畫。


返回

void

範例程式碼

This sample demonstrates the impact of cancelling a tween.

A part is instanced in the Workspace and a tween is set up to move it along the Y axis. Mid way through the tween, it is cancelled. It can be observed here that the part does not return to its original position, but when it is resumed it takes the full length of the tween (5 seconds) to complete.

This is the key difference TweenBase:Pause() and TweenBase:Cancel().

Tween Cancel
local TweenService = game:GetService("TweenService")



local part = Instance.new("Part")

part.Position = Vector3.new(0, 10, 0)

part.Anchored = true

part.Parent = workspace



local goal = {}

goal.Position = Vector3.new(0, 50, 0)



local tweenInfo = TweenInfo.new(5)



local tween = TweenService:Create(part, tweenInfo, goal)



tween:Play()

task.wait(2.5)

tween:Cancel()



local playTick = tick()

tween:Play()



tween.Completed:Wait()



local timeTaken = tick() - playTick

print("Tween took " .. tostring(timeTaken) .. " secs to complete")



-- The tween will take 5 seconds to complete as the tween variables have been reset by tween:Cancel()

Pause

void

停止播放暫停的補間動畫。不會重設其進度變量，因此如果您呼叫 TweenBase:Play()，殺手將從暫停的那一刻起恢復播放。

如果要重設暫時的進補間動畫數，請使用 TweenBase:Cancel()。

您只能暫停 PlaybackState 中的 Enum. PlaybackState.Playing ；在其他 Class.TweenBase.


返回

void

範例程式碼

This sample demonstrates how the playback of a tween can be paused and resumed.

A part is instanced in the Workspace and a tween is setup that will move it 50 studs along the X axis. However during playback the tween is briefly paused, then resumed. To further illustrate this the BrickColor of the part changes from red to green while it is paused.

Pausing a Tween
local TweenService = game:GetService("TweenService")



local part = Instance.new("Part")

part.Position = Vector3.new(0, 10, 0)

part.Anchored = true

part.BrickColor = BrickColor.new("Bright green")

part.Parent = workspace



local goal = {}

goal.Position = Vector3.new(50, 10, 0)



local tweenInfo = TweenInfo.new(10, Enum.EasingStyle.Linear)



local tween = TweenService:Create(part, tweenInfo, goal)



tween:Play()



task.wait(3)

part.BrickColor = BrickColor.new("Bright red")

tween:Pause()



task.wait(2)

part.BrickColor = BrickColor.new("Bright green")

tween:Play()

Play

void

開始播放擺補間動畫。注意，如果擺動已經開始，呼叫 Play() 沒有效果，除非擺動已經完成或已停止 (或由 TweenBase:Cancel() 或 TweenBase:Pause() 來停止)。

多個兒童可以在同一個對象上同時播放，但他們不能動畫相同的屬性。如果兩個兒童嘗試修改相同的屬性，初始的潮汐將被取消並由最近的潮汐覆蓋 (請參見範例)。


返回

void

範例程式碼

In this example a Tween is created to animate the position and color of a Part. Because the position and color are part of the same tween, they will change at the exact same rate and will reach their goal at the same time.

Tween Creation
local TweenService = game:GetService("TweenService")



local part = Instance.new("Part")

part.Position = Vector3.new(0, 10, 0)

part.Color = Color3.new(1, 0, 0)

part.Anchored = true

part.Parent = game.Workspace



local goal = {}

goal.Position = Vector3.new(10, 10, 0)

goal.Color = Color3.new(0, 1, 0)



local tweenInfo = TweenInfo.new(5)



local tween = TweenService:Create(part, tweenInfo, goal)



tween:Play()

This code sample includes a demonstration of tween conflict. A part is instanced in the Workspace, and two tweens are created that attempt to move the part in conflicting directions.

When both tweens are played, the first tween is cancelled and overwritten by the second tween. This can be seen as the part moves along the Y axis as opposed to the Z axis.

To further demonstrate this, connections have been made for both tweens to the Tween.Completed event. Upon playing the tweens, the following is printed.

tween1: Enum.PlaybackState.Cancelled tween2: Enum.PlaybackState.Completed

These prints show that the first tween was cancelled (firing the Completed event) immediately upon the second tween being played. The second tween then went on to play until completion.

Tween Conflict
local TweenService = game:GetService("TweenService")



local part = Instance.new("Part")

part.Position = Vector3.new(0, 10, 0)

part.Anchored = true

part.Parent = game.Workspace



local tweenInfo = TweenInfo.new(5)



-- create two conflicting tweens (both trying to animate part.Position)

local tween1 = TweenService:Create(part, tweenInfo, { Position = Vector3.new(0, 10, 20) })

local tween2 = TweenService:Create(part, tweenInfo, { Position = Vector3.new(0, 30, 0) })



-- listen for their completion status

tween1.Completed:Connect(function(playbackState)

	print("tween1: " .. tostring(playbackState))

end)

tween2.Completed:Connect(function(playbackState)

	print("tween2: " .. tostring(playbackState))

end)



-- try to play them both

tween1:Play()

tween2:Play()
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活動

Completed

發生時暫停播放或停止時使用 TweenBase:Cancel() 。

將潮汐的 Enum.PlaybackState 傳給任何連接的函數，以便提供潮汐結束的原因。注意，呼叫 TweenBase:Pause() 不會啟動 Completed 事件。

參數

playbackState: Enum.PlaybackState

完成時的 Enum.PlaybackState 。


範例程式碼

In this example the walkspeed of any player joining the game will be slowed to 0 over 10 seconds using a Tween. The Completed event is used to reset the walkspeed after the Tween has finished playing.

Tween Completed
local Players = game:GetService("Players")

local TweenService = game:GetService("TweenService")



local SLOW_DURATION = 10



local function slowCharacter(humanoid)

	local goal = {}

	goal.WalkSpeed = 0



	local tweenInfo = TweenInfo.new(SLOW_DURATION)



	local tweenSpeed = TweenService:Create(humanoid, tweenInfo, goal)



	tweenSpeed:Play()



	return tweenSpeed

end



local function onCharacterAdded(character)

	local humanoid = character:WaitForChild("Humanoid")

	local initialSpeed = humanoid.WalkSpeed

	local tweenSpeed = slowCharacter(humanoid)

	tweenSpeed.Completed:Wait()

	humanoid.WalkSpeed = initialSpeed

end



local function onPlayerAdded(player)

	player.CharacterAdded:Connect(onCharacterAdded)

end



Players.PlayerAdded:Connect(onPlayerAdded)

This code sample includes a demonstration of tween conflict. A part is instanced in the Workspace, and two tweens are created that attempt to move the part in conflicting directions.

When both tweens are played, the first tween is cancelled and overwritten by the second tween. This can be seen as the part moves along the Y axis as opposed to the Z axis.

To further demonstrate this, connections have been made for both tweens to the Tween.Completed event. Upon playing the tweens, the following is printed.

tween1: Enum.PlaybackState.Cancelled tween2: Enum.PlaybackState.Completed

These prints show that the first tween was cancelled (firing the Completed event) immediately upon the second tween being played. The second tween then went on to play until completion.

Tween Conflict
local TweenService = game:GetService("TweenService")



local part = Instance.new("Part")

part.Position = Vector3.new(0, 10, 0)

part.Anchored = true

part.Parent = game.Workspace



local tweenInfo = TweenInfo.new(5)



-- create two conflicting tweens (both trying to animate part.Position)

local tween1 = TweenService:Create(part, tweenInfo, { Position = Vector3.new(0, 10, 20) })

local tween2 = TweenService:Create(part, tweenInfo, { Position = Vector3.new(0, 30, 0) })



-- listen for their completion status

tween1.Completed:Connect(function(playbackState)

	print("tween1: " .. tostring(playbackState))

end)

tween2.Completed:Connect(function(playbackState)

	print("tween2: " .. tostring(playbackState))

end)



-- try to play them both

tween1:Play()

tween2:Play()

This code sample includes an example of how Tween.Completed can be used to determine if a Tween has been successfully completed, or cancelled.

In this case a part is instanced and tweened towards 0, 0, 0. Once the tween has completed, if the final PlaybackState is Completed then the part will explode. Were the tween to be cancelled prior to completion, the explosion would not be created.

This method can be used to link tweens to other effects, or even chain several tweens to play after each other.

Verifying a Tween has Completed
local TweenService = game:GetService("TweenService")



local part = Instance.new("Part")

part.Position = Vector3.new(0, 50, 0)

part.Anchored = true

part.Parent = workspace



local goal = {}

goal.Position = Vector3.new(0, 0, 0)



local tweenInfo = TweenInfo.new(3)



local tween = TweenService:Create(part, tweenInfo, goal)



local function onTweenCompleted(playbackState)

	if playbackState == Enum.PlaybackState.Completed then

		local explosion = Instance.new("Explosion")

		explosion.Position = part.Position

		explosion.Parent = workspace

		part:Destroy()

		task.delay(2, function()

			if explosion then

				explosion:Destroy()

			end

		end)

	end

end



tween.Completed:Connect(onTweenCompleted)



tween:Play()
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