local part = script.Parent

-- Create a ClickDetector so we can tell when the part is clicked
local cd = Instance.new("ClickDetector", part)

-- This function updates how the part looks based on its Anchored state
local function updateVisuals()
	if part.Anchored then
		-- When the part is anchored...
		part.BrickColor = BrickColor.new("Bright red")
		part.Material = Enum.Material.DiamondPlate
	else
		-- When the part is unanchored...
		part.BrickColor = BrickColor.new("Bright yellow")
		part.Material = Enum.Material.Wood
	end
end

local function onToggle()
	-- Toggle the anchored property
	part.Anchored = not part.Anchored

	-- Update visual state of the brick
	updateVisuals()
end

-- Update, then start listening for clicks
updateVisuals()
cd.MouseClick:Connect(onToggle)

-- Paste into a Script inside a tall part
local part = script.Parent

local OPEN_TIME = 1

-- Can the door be opened at the moment?
local debounce = false

local function open()
	part.CanCollide = false
	part.Transparency = 0.7
	part.BrickColor = BrickColor.new("Black")
end

local function close()
	part.CanCollide = true
	part.Transparency = 0
	part.BrickColor = BrickColor.new("Bright blue")
end

local function onTouch(otherPart)
	-- If the door was already open, do nothing
	if debounce then
		print("D")
		return
	end

	-- Check if touched by a Humanoid
	local human = otherPart.Parent:FindFirstChildOfClass("Humanoid")
	if not human then
		print("not human")
		return
	end

	-- Perform the door opening sequence
	debounce = true
	open()
	task.wait(OPEN_TIME)
	close()
	debounce = false
end

part.Touched:Connect(onTouch)
close()

local part = script.Parent:WaitForChild("Part")
local otherPart = script.Parent:WaitForChild("OtherPart")

-- Reset the part's CFrame to (0, 0, 0) with no rotation.
-- This is sometimes called the "identity" CFrame
part.CFrame = CFrame.new()

-- Set to a specific position (X, Y, Z)
part.CFrame = CFrame.new(0, 25, 10)

-- Same as above, but use a Vector3 instead
local point = Vector3.new(0, 25, 10)
part.CFrame = CFrame.new(point)

-- Set the part's CFrame to be at one point, looking at another
local lookAtPoint = Vector3.new(0, 20, 15)
part.CFrame = CFrame.lookAt(point, lookAtPoint)

-- Rotate the part's CFrame by pi/2 radians on local X axis
part.CFrame = part.CFrame * CFrame.Angles(math.pi / 2, 0, 0)
-- Rotate the part's CFrame by 45 degrees on local Y axis
part.CFrame = part.CFrame * CFrame.Angles(0, math.rad(45), 0)
-- Rotate the part's CFrame by 180 degrees on global Z axis (note the order!)
part.CFrame = CFrame.Angles(0, 0, math.pi) * part.CFrame -- Pi radians is equal to 180 degrees

-- Composing two CFrames is done using * (the multiplication operator)
part.CFrame = CFrame.new(2, 3, 4) * CFrame.new(4, 5, 6) --> equal to CFrame.new(6, 8, 10)

-- Unlike algebraic multiplication, CFrame composition is NOT communitative: a * b is not necessarily b * a!
-- Imagine * as an ORDERED series of actions. For example, the following lines produce different CFrames:
-- 1) Slide the part 5 units on X.
-- 2) Rotate the part 45 degrees around its Y axis.
part.CFrame = CFrame.new(5, 0, 0) * CFrame.Angles(0, math.rad(45), 0)
-- 1) Rotate the part 45 degrees around its Y axis.
-- 2) Slide the part 5 units on X.
part.CFrame = CFrame.Angles(0, math.rad(45), 0) * CFrame.new(5, 0, 0)

-- There is no "CFrame division", but instead simply "doing the inverse operation".
part.CFrame = CFrame.new(4, 5, 6) * CFrame.new(4, 5, 6):Inverse() --> is equal to CFrame.new(0, 0, 0)
part.CFrame = CFrame.Angles(0, 0, math.pi) * CFrame.Angles(0, 0, math.pi):Inverse() --> equal to CFrame.Angles(0, 0, 0)

-- Position a part relative to another (in this case, put our part on top of otherPart)
part.CFrame = otherPart.CFrame * CFrame.new(0, part.Size.Y / 2 + otherPart.Size.Y / 2, 0)

local PhysicsService = game:GetService("PhysicsService")

local collisionGroupBall = "CollisionGroupBall"
local collisionGroupDoor = "CollisionGroupDoor"

-- Register collision groups
PhysicsService:RegisterCollisionGroup(collisionGroupBall)
PhysicsService:RegisterCollisionGroup(collisionGroupDoor)

-- Assign parts to collision groups
script.Parent.BallPart.CollisionGroup = collisionGroupBall
script.Parent.DoorPart.CollisionGroup = collisionGroupDoor

-- Set groups as non-collidable with each other and check the result
PhysicsService:CollisionGroupSetCollidable(collisionGroupBall, collisionGroupDoor, false)
print(PhysicsService:CollisionGroupsAreCollidable(collisionGroupBall, collisionGroupDoor)) --> false

-- Paste into a Script within StarterCharacterScripts
-- Then play the game, and fiddle with your character's health
local char = script.Parent
local human = char.Humanoid

local colorHealthy = Color3.new(0.4, 1, 0.2)
local colorUnhealthy = Color3.new(1, 0.4, 0.2)

local function setColor(color)
	for _, child in pairs(char:GetChildren()) do
		if child:IsA("BasePart") then
			child.Color = color
			while child:FindFirstChildOfClass("Decal") do
				child:FindFirstChildOfClass("Decal"):Destroy()
			end
		elseif child:IsA("Accessory") then
			child.Handle.Color = color
			local mesh = child.Handle:FindFirstChildOfClass("SpecialMesh")
			if mesh then
				mesh.TextureId = ""
			end
		elseif child:IsA("Shirt") or child:IsA("Pants") then
			child:Destroy()
		end
	end
end

local function update()
	local percentage = human.Health / human.MaxHealth

	-- Create a color by tweening based on the percentage of your health
	-- The color goes from colorHealthy (100%) ----- > colorUnhealthy (0%)
	local color = Color3.new(
		colorHealthy.R * percentage + colorUnhealthy.r * (1 - percentage),
		colorHealthy.G * percentage + colorUnhealthy.g * (1 - percentage),
		colorHealthy.B * percentage + colorUnhealthy.b * (1 - percentage)
	)
	setColor(color)
end

update()
human.HealthChanged:Connect(update)

local part = script.Parent

-- This will make the part light and bouncy!
local DENSITY = 0.3
local FRICTION = 0.1
local ELASTICITY = 1
local FRICTION_WEIGHT = 1
local ELASTICITY_WEIGHT = 1

local physProperties = PhysicalProperties.new(DENSITY, FRICTION, ELASTICITY, FRICTION_WEIGHT, ELASTICITY_WEIGHT)
part.CustomPhysicalProperties = physProperties

-- Paste into a Script within a Model you want to unlock
local model = script.Parent

-- This function recurses through a model's heirarchy and unlocks
-- every part that it encounters.
local function recursiveUnlock(object)
	if object:IsA("BasePart") then
		object.Locked = false
	end

	-- Call the same function on the children of the object
	-- The recursive process stops if an object has no children
	for _, child in pairs(object:GetChildren()) do
		recursiveUnlock(child)
	end
end

recursiveUnlock(model)

local part = script.Parent

local INCREMENT = 360 / 20

-- Rotate the part continually
while true do
	for degrees = 0, 360, INCREMENT do
		-- Set only the Y axis rotation
		part.Rotation = Vector3.new(0, degrees, 0)
		-- A better way to do this would be setting CFrame
		--part.CFrame = CFrame.new(part.Position) * CFrame.Angles(0, math.rad(degrees), 0)
		task.wait()
	end
end

local function resetPivot(model)
	local boundsCFrame = model:GetBoundingBox()
	if model.PrimaryPart then
		model.PrimaryPart.PivotOffset = model.PrimaryPart.CFrame:ToObjectSpace(boundsCFrame)
	else
		model.WorldPivot = boundsCFrame
	end
end

resetPivot(script.Parent)

local function createHand(length, width, yOffset)
	local part = Instance.new("Part")
	part.Size = Vector3.new(width, 0.1, length)
	part.Material = Enum.Material.Neon
	part.PivotOffset = CFrame.new(0, -(yOffset + 0.1), length / 2)
	part.Anchored = true
	part.Parent = workspace
	return part
end

local function positionHand(hand, fraction)
	hand:PivotTo(CFrame.fromEulerAnglesXYZ(0, -fraction * 2 * math.pi, 0))
end

-- Create dial
for i = 0, 11 do
	local dialPart = Instance.new("Part")
	dialPart.Size = Vector3.new(0.2, 0.2, 1)
	dialPart.TopSurface = Enum.SurfaceType.Smooth
	if i == 0 then
		dialPart.Size = Vector3.new(0.2, 0.2, 2)
		dialPart.Color = Color3.new(1, 0, 0)
	end
	dialPart.PivotOffset = CFrame.new(0, -0.1, 10.5)
	dialPart.Anchored = true
	dialPart:PivotTo(CFrame.fromEulerAnglesXYZ(0, (i / 12) * 2 * math.pi, 0))
	dialPart.Parent = workspace
end

-- Create hands
local hourHand = createHand(7, 1, 0)
local minuteHand = createHand(10, 0.6, 0.1)
local secondHand = createHand(11, 0.2, 0.2)

-- Run clock
while true do
	local components = os.date("*t")
	positionHand(hourHand, (components.hour + components.min / 60) / 12)
	positionHand(minuteHand, (components.min + components.sec / 60) / 60)
	positionHand(secondHand, components.sec / 60)
	task.wait()
end

-- Put this Script in several kinds of BasePart, like
-- Part, TrussPart, WedgePart, CornerWedgePart, etc.
local part = script.Parent

-- Create a handles object for this part
local handles = Instance.new("Handles")
handles.Adornee = part
handles.Parent = part

-- Manually specify the faces applicable for this handle
handles.Faces = Faces.new(Enum.NormalId.Top, Enum.NormalId.Front, Enum.NormalId.Left)

-- Alternatively, use the faces on which the part can be resized.
-- If part is a TrussPart with only two Size dimensions
-- of length 2, then ResizeableFaces will only have two
-- enabled faces. For other parts, all faces will be enabled.
handles.Faces = part.ResizeableFaces

local TOWER_BASE_SIZE = 30

local position = Vector3.new(50, 50, 50)

local hue = math.random()
local color0 = Color3.fromHSV(hue, 1, 1)
local color1 = Color3.fromHSV((hue + 0.35) % 1, 1, 1)

local model = Instance.new("Model")
model.Name = "Tower"

for i = TOWER_BASE_SIZE, 1, -2 do
	local part = Instance.new("Part")
	part.Size = Vector3.new(i, 2, i)
	part.Position = position
	part.Anchored = true
	part.Parent = model
	-- Tween from color0 and color1
	local perc = i / TOWER_BASE_SIZE
	part.Color = Color3.new(
		color0.R * perc + color1.R * (1 - perc),
		color0.G * perc + color1.G * (1 - perc),
		color0.B * perc + color1.B * (1 - perc)
	)

	position = position + Vector3.new(0, part.Size.Y, 0)
end
model.Parent = workspace

-- Paste into a Script inside a tall part
local part = script.Parent

local OPEN_TIME = 1

-- Can the door be opened at the moment?
local debounce = false

local function open()
	part.CanCollide = false
	part.Transparency = 0.7
	part.BrickColor = BrickColor.new("Black")
end

local function close()
	part.CanCollide = true
	part.Transparency = 0
	part.BrickColor = BrickColor.new("Bright blue")
end

local function onTouch(otherPart)
	-- If the door was already open, do nothing
	if debounce then
		print("D")
		return
	end

	-- Check if touched by a Humanoid
	local human = otherPart.Parent:FindFirstChildOfClass("Humanoid")
	if not human then
		print("not human")
		return
	end

	-- Perform the door opening sequence
	debounce = true
	open()
	task.wait(OPEN_TIME)
	close()
	debounce = false
end

part.Touched:Connect(onTouch)
close()

local part = workspace:FindFirstChild("Part")

if part and part:IsA("BasePart") then
	local canSet, errorReason = part:CanSetNetworkOwnership()
	if canSet then
		print(part:GetFullName() .. "'s Network Ownership can be changed!")
	else
		warn("Cannot change the Network Ownership of " .. part:GetFullName() .. " because: " .. errorReason)
	end
end

local myPart = Instance.new("Part")
myPart.Size = Vector3.new(4, 6, 4)
myPart.Anchored = true
myPart.Parent = workspace

local myMass = myPart:GetMass()

print("My part's mass is " .. myMass)