平行 Luau

取消同步一個線程
local RunService = game:GetService("RunService")

RunService.Heartbeat:ConnectParallel(function()
	...  -- 一些計算狀態更新的平行代碼

	task.synchronize()

	...  -- 一些更改實例狀態的序列代碼
end)

示例消息發送者
local Workspace = game:GetService("Workspace")

-- 向工作角色發送兩條主題為 "Greeting" 的消息
local workerActor = Workspace.WorkerActor
workerActor:SendMessage("Greeting", "Hello World!")
workerActor:SendMessage("Greeting", "Welcome")

print("已發送消息")

示例消息接收者
-- 獲取此腳本所屬的角色
local actor = script:GetActor()

-- 綁定 "Greeting" 消息主題的回調
actor:BindToMessageParallel("Greeting", function(greetingString)
	print(actor.Name, "-", greetingString)
end)

print("已綁定消息")

local Workspace = game:GetService("Workspace")

local tool = script.Parent.Parent

local remoteEvent = Instance.new("RemoteEvent")  -- 創建新的遠程事件並將其作為工具的子項
remoteEvent.Name = "RemoteMouseEvent"  -- 重命名以便本地腳本可以查找它
remoteEvent.Parent = tool
local remoteEventConnection  -- 創建遠程事件連接的引用

-- 監聽遠程事件的函數
local function onRemoteMouseEvent(player: Player, clickLocation: CFrame)
	-- 序列：在序列中執行設置代碼
	local character = player.Character
	-- 在光線投射時忽略用戶的角色
	local params = RaycastParams.new()
	params.FilterType = Enum.RaycastFilterType.Exclude
	params.FilterDescendantsInstances = { character }

	-- 平行：在平行中執行光線投射
	task.desynchronize()
	local origin = tool.Handle.CFrame.Position
	local epsilon = 0.01  -- 用來稍微延伸光線，因為點擊位置可能與物體稍微偏離
	local lookDirection = (1 + epsilon) * (clickLocation.Position - origin)
	local raycastResult = Workspace:Raycast(origin, lookDirection, params)
	if raycastResult then
		local hitPart = raycastResult.Instance
		if hitPart and hitPart.Name == "block" then
			local explosion = Instance.new("Explosion")

			-- 序列：下面的代碼更改角色外部的狀態
			task.synchronize()
			explosion.DestroyJointRadiusPercent = 0  -- 使爆炸不致命
			explosion.Position = clickLocation.Position

			-- 多個角色可能在光線投射中獲取同一個部分並決定摧毀它
			-- 這是完全安全的，但會導致兩次爆炸而非一次
			-- 以下代碼會雙重檢查執行是否首先到達這一部分
			if hitPart.Parent then
				explosion.Parent = Workspace
				hitPart:Destroy()  -- 摧毀它
			end
		end
	end
end

-- 最初以序列連接信號，因為一些設置代碼無法在平行中運行
remoteEventConnection = remoteEvent.OnServerEvent:Connect(onRemoteMouseEvent)

-- 平行執行需要使用角色
-- 此腳本克隆自身；原始腳本啟動過程，而克隆作為工作者
local Workspace = game:GetService("Workspace")

local actor = script:GetActor()
if actor == nil then
	local workers = {}
	for i = 1, 32 do
		local actor = Instance.new("Actor")
		script:Clone().Parent = actor
		table.insert(workers, actor)
	end

	-- 將所有角色作為子項放在自身下
	for _, actor in workers do
		actor.Parent = script
	end

	-- 通過發送消息指示角色生成地形
	-- 在此示例中，角色隨機選擇
	task.defer(function()
		local rand = Random.new()
		local seed = rand:NextNumber()

		local sz = 10
		for x = -sz, sz do
			for y = -sz, sz do
				for z = -sz, sz do
					workers[rand:NextInteger(1, #workers)]:SendMessage("GenerateChunk", x, y, z, seed)
				end
			end
		end
	end)

	-- 從原始腳本退出；剩餘代碼在每個角色中運行
	return
end

function makeNdArray(numDim, size, elemValue)
	if numDim == 0 then
		return elemValue
	end
	local result = {}
	for i = 1, size do
		result[i] = makeNdArray(numDim - 1, size, elemValue)
	end
	return result
end

function generateVoxelsWithSeed(xd, yd, zd, seed)
	local matEnums = {Enum.Material.CrackedLava, Enum.Material.Basalt, Enum.Material.Asphalt}
	local materials = makeNdArray(3, 4, Enum.Material.CrackedLava)
	local occupancy = makeNdArray(3, 4, 1)

	local rand = Random.new()

	for x = 0, 3 do
		for y = 0, 3 do
			for z = 0, 3 do
				occupancy[x + 1][y + 1][z + 1] = math.noise(xd + 0.25 * x, yd + 0.25 * y, zd + 0.25 * z)
				materials[x + 1][y + 1][z + 1] = matEnums[rand:NextInteger(1, #matEnums)]
			end
		end
	end

	return {materials = materials, occupancy = occupancy}
end

-- 在平行執行上下文中綁定回調
actor:BindToMessageParallel("GenerateChunk", function(x, y, z, seed)
	local voxels = generateVoxelsWithSeed(x, y, z, seed)
	local corner = Vector3.new(x * 16, y * 16, z * 16)

	-- 當前，WriteVoxels() 必須在序列階段調用
	task.synchronize()
	Workspace.Terrain:WriteVoxels(
		Region3.new(corner, corner + Vector3.new(16, 16, 16)),
		4,
		voxels.materials,
		voxels.occupancy
	)
end)