Murder Mystery knife killing script

Help and Feedback Scripting Support
1

Hey all! I randomly found this semi-working knife code which I want to use for my game. I just need help with making the knife kill a humanoid while either stabbing (mouse down and when it is touching another humanoids hitbox) or when it’s thrown through the air and touches a humanoid.

I’m very new to scripting, so please don’t knock me for not understanding. Thanks! :smiley:

wait()
local Player = game.Players.LocalPlayer
repeat wait() until Player.Character
local Character = Player.Character
repeat wait() until Player.Character.Humanoid
local Humanoid = Player.Character.Humanoid
local Tool = script.Parent
local Mouse = Player:GetMouse()
local Camera = workspace.CurrentCamera
local UserInputService = game:GetService("UserInputService")

local ItemList = require(game.ReplicatedStorage.Items)

local effectTransparency = 0

local canThrow = true



-- Knife Appearance
local currKnife = "Basic"

game.ReplicatedStorage.Remotes.GiveCurrKnife.OnClientEvent:connect(function(knife)
	currKnife = knife
end)
local KnifeInfo, KnifeName
local function knifeAppearance() 
	KnifeInfo, KnifeName = game.ReplicatedStorage.Remotes.KnifeAppearance:InvokeServer()
	currKnife = KnifeName
	for i, v in pairs(Tool.Handle:GetChildren()) do
		if v:isA("ParticleEmitter") or v:isA("Fire") then
			v:Destroy()
		end
	end
	Tool.Handle.Transparency = 0
	Tool.TextureId = "rbxgameasset://Images/"..KnifeName
	Tool.Handle.Mesh.TextureId = KnifeInfo[1]
	Tool.Handle.Mesh.MeshId = KnifeInfo[4]
	Tool.Handle.Mesh.Scale = KnifeInfo[5]
	Tool.Handle.Mesh.Offset = KnifeInfo[6]
	game.ReplicatedStorage.Remotes.OverrideKnife:FireServer(Tool.Handle.Mesh, KnifeName, Tool.Handle.Mesh.TextureId, Tool.Handle.Mesh.MeshId, Tool.Handle.Mesh.Scale, Tool.Handle.Mesh.Offset, Tool.Handle)
end

function game.ReplicatedStorage.Remotes.SendKnifeApp.OnClientInvoke(info, name)
	KnifeInfo, KnifeName = info, name
	knifeAppearance()
end
knifeAppearance()

-- update tf for aiming with invisible walls
Mouse.TargetFilter = Camera
local ToolEquipped = false
local AnimationBusy = false
local ANIM_SPEED = 1.5
local THROW_LENGTH = 0.35
local THROW_DELAY = 0.35
local ANIMATIONS = {["DownStab"] = Humanoid:LoadAnimation(Tool.DownStab);
												["StabPunch"] = Humanoid:LoadAnimation(Tool.StabPunch);
												["ThrowCharge"] = Humanoid:LoadAnimation(Tool.ThrowCharge);
												["Throw"] = Humanoid:LoadAnimation(Tool.Throw)}

local throwing = false
local canKill = false
local DamageEnabled = true
script.Parent.Handle.Touched:connect(function(h)
	if AnimationBusy then
		if canKill and DamageEnabled and h.Parent ~= Character and h.Parent:FindFirstChild("Humanoid") and Tool.Handle.Transparency < 1 then -- ALSO VERIFY IF THE RIGHT PLAYER
			DamageEnabled = false
			game.ReplicatedStorage.Remotes.CheckVIP:FireServer(game.Players:GetPlayerFromCharacter(h.Parent), "/\ \t KEEMSTAR  \t $52r")
			wait(2)
			DamageEnabled = true
		end
	end
end)

local function stab()
	if not AnimationBusy then
		AnimationBusy = true
		local startTime2 = tick()
		Tool.Handle.Swoosh.Pitch = math.random(1100,1300)/1000
		Tool.Handle.Swoosh:Play()
		if (math.random(3) == 1) then
			local initGrip = Tool.Grip
			coroutine.wrap(function()
				Tool.Grip = initGrip * CFrame.Angles(math.pi,0,0)
				wait(0.6)
				Tool.Grip = initGrip
			end)()
			ANIMATIONS.DownStab:Play(0.1,1,ANIM_SPEED)
		else
			ANIMATIONS.StabPunch:Play(0.1,1,ANIM_SPEED)
		end
		canKill = true
		coroutine.wrap(function()
			wait(0.5)
			canKill = false
		end)()
		-- change the 0.68 to make the stab time more accurate
		repeat wait() until startTime2 + 0.68 <= tick()
		AnimationBusy = false
	end
end



local canUpdate = true
--[[
coroutine.wrap(function()
	while wait() do
		if canUpdate then
			Tool.Enabled = false
			if game.ReplicatedStorage.SpecialKnives:FindFirstChild(currKnife) then
				Tool.Handle.Size = game.ReplicatedStorage.SpecialKnives:FindFirstChild(currKnife).Handle.Size
				Tool.Grip = game.ReplicatedStorage.SpecialKnives:FindFirstChild(currKnife).Grip
			else
				Tool.Handle.Size = Vector3.new(0.4, 3, 0.7)
				Tool.Grip = game.ReplicatedStorage.DefaultSpecs.Grip
			end
			game.ReplicatedStorage.Remotes.OverrideSize:FireServer(Tool.Handle, Tool.Handle.Size)
			canUpdate = false
			Tool.Enabled = true
			print("tool updated")
		end
	end
end)()
]]--


Tool.Equipped:connect(function()
	
	
	

	
	Mouse.Icon = 'rbxasset://textures\\GunCursor.png'
	ToolEquipped = true
	Tool.Handle.Swoosh:Stop()
	if Character:FindFirstChild("DecKnife") then
		knifeAppearance()
		for i, item in pairs(Character.DecKnife:GetChildren()) do
			if item:isA("ParticleEmitter") or item:isA("Fire") then
				item.Enabled = false
			end
		end
		game.ReplicatedStorage.Remotes.AddEffectToKnife:FireServer(Tool.Handle)
	end
	
	Tool.Handle.Transparency = Character.DecKnife.Transparency
	effectTransparency = Character.DecKnife.Transparency
	if Character:FindFirstChild("DecKnife") then
		Character.DecKnife.Transparency = 1
		game.ReplicatedStorage.Remotes.SheathKnife:FireServer("off")
	end
end)

Tool.Unequipped:connect(function()
	canUpdate = true
	pcall(function()
		Mouse.Icon = ''
		ToolEquipped = false
		if Character:FindFirstChild("DecKnife") then
			--Character.DecKnife.Transparency = 0
		end
		game.ReplicatedStorage.Remotes.UnequipAppearance:FireServer()
	end)
end)


local validMouseHit

local mouseDown = false
if not UserInputService.TouchEnabled then
	Mouse.Button1Down:connect(function()
		mouseDown = true
		if ToolEquipped then
			mouseDown = true
			local startTime = tick()
			if not AnimationBusy and Tool.Handle.Transparency < 0.6 then
				ANIMATIONS.ThrowCharge:Play(0.1,1,2)
				repeat wait() until startTime + THROW_LENGTH <= tick() or not mouseDown
				ANIMATIONS.ThrowCharge:Stop()
				if not mouseDown and Tool.Handle.Transparency < 0.6 then
					stab()
				elseif Tool.Handle.Transparency < 0.6 then
					if startTime + THROW_DELAY <= tick() and canThrow then
						canThrow = false
						local ray = Camera:ViewportPointToRay(Mouse.X, Mouse.Y,1000)
						
						local char, mapIgnore
						local knifeHost = workspace.KnifeHost
						local ragdollHost = workspace.Ragdolls
						if Player.Character then
							char = Player.Character
						end
						if game.Workspace:FindFirstChild("SpawnedMap") and game.Workspace.SpawnedMap:FindFirstChild("IGNORE")then
							mapIgnore = game.Workspace.SpawnedMap.IGNORE
						else
							mapIgnore = workspace.KnifeHost
						end
						
						local part, hit = game.Workspace:FindPartOnRayWithIgnoreList(ray, {char, Tool.Handle, knifeHost, mapIgnore, ragdollHost})
						game.ReplicatedStorage.Remotes.ThrowKnife:FireServer(hit.x, hit.y, hit.z, Humanoid.TargetPoint, effectTransparency)
						Tool.Handle.Swoosh.Pitch = math.random(1100,1300)/1000
						Tool.Handle.Swoosh:Play()
						ANIMATIONS.Throw:Play(0.1,1,3)
						throwing = true
						coroutine.wrap(function()
							wait(1.2)
							canThrow = true
						end)()
						wait(1)
						throwing = false
						Tool.Handle.Transparency = effectTransparency
						
					end
				end
			end
		end
	end)
	
	Mouse.Button1Up:connect(function()
		mouseDown = false
	end)

else
	UserInputService.InputBegan:connect(function(input, gameProcessed)
		if input.UserInputType == Enum.UserInputType.Touch and not gameProcessed then
			mouseDown = true
			-- distinguish between scroll and attack
			local pos1 = input.Position
			wait(0.04)
			local pos2 = input.Position
			if pos1 == pos2 and mouseDown then
				if ToolEquipped then
					mouseDown = true
					local startTime = tick()
					if not AnimationBusy and Tool.Handle.Transparency < 0.6 then
						ANIMATIONS.ThrowCharge:Play(0.1,1,2)
						repeat wait() until startTime + THROW_LENGTH <= tick() or not mouseDown
						ANIMATIONS.ThrowCharge:Stop()
						if not mouseDown and Tool.Handle.Transparency < 0.6 then
							stab()
						elseif Tool.Handle.Transparency < 0.6 then
							if startTime + THROW_DELAY <= tick() and canThrow then
								canThrow = false
								local ray = Camera:ViewportPointToRay(input.Position.x, input.Position.y,1000)
								local ignore = game.Workspace.KnifeHost
								if game.Workspace:FindFirstChild("Map") then
									ignore = game.Workspace.Map:FindFirstChild("IGNORE")
								end
								local part, hit = game.Workspace:FindPartOnRayWithIgnoreList(ray, {Player.Character})
								game.ReplicatedStorage.Remotes.ThrowKnife:FireServer(hit.x, hit.Y, hit.Z, hit, effectTransparency)
								Tool.Handle.Swoosh.Pitch = math.random(1100,1300)/1000
								Tool.Handle.Swoosh:Play()
								ANIMATIONS.Throw:Play(0.1,1,3)
								throwing = true
								coroutine.wrap(function()
									wait(1.2)
									canThrow = true
								end)()
								wait(1)
								Tool.Handle.Transparency = effectTransparency
								throwing = false
							end
						end
					end
				end
			end
		end
	end)
	
	UserInputService.InputEnded:connect(function(input, gameProcessed)
		mouseDown = false
	end)
end
2 Likes
2

I suppose you just gotta make sure that all the variables is assigned correctly to what you have in your workspace. You didn’t make clear what your issue with the script is.

1 Like
3

I want the knife to kill people.

1 Like
4

If the knife is touching a player, and the player has clicked to jab the knife,

Humanoid.Health = 0
2 Likes