服务器冷却时间

local Players = game:GetService("Players")
local ServerStorage = game:GetService("ServerStorage")
local Settings = require(game.ReplicatedStorage.Settings)

local remotes = game.ReplicatedStorage.Remotes
local lastSwing = {} -- player → 上次挥剑的时间

-- Roblox 自带的剑术动画
local slash = Instance.new("Animation")
slash.AnimationId = "rbxassetid://522635514"

print("Swords deal " .. Settings.SwordDamage .. " damage")

-- 挥剑：先播放动画，再击中你前方区域内的所有人
local function swing(player)
	local character = player.Character
	local root = character and character:FindFirstChild("HumanoidRootPart")
	if not root or character.Humanoid.Health <= 0 then
		return
	end
	local now = time()
	if lastSwing[player] and now - lastSwing[player] < Settings.SwingCooldown then
		return
	end
	lastSwing[player] = now
	character.Humanoid.Animator:LoadAnimation(slash):Play()
	-- 你前方的区域，不包括你自己的身体
	local params = OverlapParams.new()
	params.FilterDescendantsInstances = { character }
	local box = root.CFrame * CFrame.new(0, 0, -3)
	local hit = {} -- 每次挥剑只击中每个人形角色一次
	for _, part in workspace:GetPartBoundsInBox(box, Settings.HitboxSize, params) do
		local humanoid = part.Parent:FindFirstChildOfClass("Humanoid")
		if humanoid and not hit[humanoid] then
			hit[humanoid] = true
			humanoid:TakeDamage(Settings.SwordDamage)
			print(humanoid.Parent.Name .. " is at " .. humanoid.Health)
		end
	end
end

-- 按名称列出的技能：每个技能的作用
local abilities = {}

-- 玩家自己的设备负责移动角色，所以冲刺也在那里执行
function abilities.Dash(player)
	remotes.Ability:FireClient(player, "Dash")
end

-- 客户端按名称请求技能，服务器负责执行
remotes.Ability.OnServerEvent:Connect(function(player, name)
	local character = player.Character
	local root = character and character:FindFirstChild("HumanoidRootPart")
	if abilities[name] and root then
		abilities[name](player, character, root)
	end
	-- 第 8 课：服务器冷却机制写在这里
end)

-- 每位玩家每次重生都会获得一把剑
Players.PlayerAdded:Connect(function(player)
	player.CharacterAdded:Connect(function()
		local sword = ServerStorage.Sword:Clone()
		sword.Parent = player.Backpack
		sword.Activated:Connect(function()
			swing(player)
		end)
	end)
end)

-- 训练假人：生命条随生命值变化，被击败后
-- 假人会在片刻后重新出现，原地生成一个全新的副本
local function setupDummy(dummy)
	local humanoid = dummy.Humanoid
	humanoid.HealthChanged:Connect(function(health)
		dummy.HealthBar.Back.Fill.Size = UDim2.fromScale(health / humanoid.MaxHealth, 1)
	end)
	humanoid.Died:Connect(function()
		local spot = dummy:GetPivot()
		task.wait(0.5)
		dummy:Destroy()
		task.wait(Settings.DummyRespawn)
		local fresh = ServerStorage.Dummy:Clone()
		fresh:PivotTo(spot)
		fresh.Parent = workspace
		setupDummy(fresh)
	end)
end
setupDummy(workspace.Dummy)