local player = game.Players.LocalPlayer
local runService = game:GetService("RunService")

local kbPower = 1000
local upForce = 250
local stunTime = 0.9
local cd = 0.5

local lastKb = 0
local ragdolled = false

local function ragdoll(char, enable)
	if not char then return end
	
	local hum = char:FindFirstChildOfClass("Humanoid")
	if not hum then return end
	
	local r6 = hum.RigType == Enum.HumanoidRigType.R6

	hum.PlatformStand = enable
	hum.AutoRotate = not enable
	hum.Sit = false

	if enable then
		for _, joint in char:GetDescendants() do
			if joint:IsA("Motor6D") then
				if r6 and joint.Name == "Neck" then continue end
				
				if joint.Enabled then
					joint.Enabled = false
					
					local a0 = Instance.new("Attachment")
					a0.Name = "TempAttachment0"
					a0.Parent = joint.Part0
					a0.CFrame = joint.C0
					
					local a1 = Instance.new("Attachment")
					a1.Name = "TempAttachment1"
					a1.Parent = joint.Part1
					a1.CFrame = joint.C1
					
					local bs = Instance.new("BallSocketConstraint")
					bs.Name = "TempBallSocket"
					bs.Attachment0 = a0
					bs.Attachment1 = a1
					bs.Parent = joint.Parent
				end
			end
		end
		ragdolled = true
	else
		for _, joint in char:GetDescendants() do
			if joint:IsA("Motor6D") then
				joint.Enabled = true
			end
		end
		
		for _, item in char:GetDescendants() do
			if item.Name:find("Temp") then
				item:Destroy()
			end
		end
		
		hum.PlatformStand = false
		hum.AutoRotate = true
		ragdolled = false
	end
end

local function waitLand(hrp)
	local landed = false
	local start = tick()
	
	while not landed and tick() - start < 10 do
		runService.Heartbeat:Wait()
		local ray = Ray.new(hrp.Position + Vector3.new(0, 0.5, 0), Vector3.new(0, -4, 0))
		local hit, pos = workspace:FindPartOnRayWithIgnoreList(ray, {hrp.Parent})
		
		if hit and (pos - hrp.Position).Magnitude < 5 then
			landed = true
		end
	end
	return landed
end

local function applyKb()
	local char = player.Character
	if not char then return end
	
	local hrp = char:FindFirstChild("HumanoidRootPart")
	local hum = char:FindFirstChildOfClass("Humanoid")
	
	if not hrp or not hum then return end
	
	if tick() - lastKb < cd then return end
	lastKb = tick()
	
	hum:ChangeState(Enum.HumanoidStateType.Physics)
	
	local look = hrp.CFrame.LookVector
	local back = -look * kbPower
	
	local force = back + Vector3.new(0, upForce, 0)
	
	ragdoll(char, true)
	
	hrp.AssemblyLinearVelocity = Vector3.new(0, 0, 0)
	hrp.AssemblyAngularVelocity = Vector3.new(0, 0, 0)
	
	hrp:ApplyImpulse(force * hrp.AssemblyMass * 0.5)
	
	task.wait(0.05)
	hrp:ApplyImpulse(force * hrp.AssemblyMass)
	
	task.spawn(function()
		if waitLand(hrp) then
			task.wait(stunTime)
			ragdoll(char, false)
			
			task.wait(0.1)
			if hum and hum.Health > 0 then
				hum:ChangeState(Enum.HumanoidStateType.GettingUp)
			end
		else
			task.wait(stunTime)
			ragdoll(char, false)
		end
	end)
end

local function setupDamage()
	local char = player.Character
	if not char then
		player.CharacterAdded:Wait()
		char = player.Character
		task.wait(1)
	end
	
	local hum = char:WaitForChild("Humanoid")
	local lastHp = hum.Health
	
	local con
	con = hum:GetPropertyChangedSignal("Health"):Connect(function()
		if not char or not char.Parent then
			con:Disconnect()
			task.wait(2)
			setupDamage()
			return
		end
		
		local curHp = hum.Health
		
		if curHp < lastHp and curHp > 0 then
			applyKb()
		end
		
		lastHp = curHp
		
		if hum.Health <= 0 then
			con:Disconnect()
			task.spawn(function()
				player.CharacterAdded:Wait()
				task.wait(2)
				setupDamage()
			end)
			return
		end
	end)
	
	return con
end

task.spawn(function()
	setupDamage()
end)

player.CharacterAdded:Connect(function(char)
	task.wait(2)
	setupDamage()
end)