example1.lua

points = script.Parent

--[[
This script creates 100 cubes representing "points" on a graph.
It loops through the values of x from 0 to 100, and calculates the correct y value at each position.
For each pair of values, it creates a cube at position x,y.
]]

-- Create a variable called "x" and set it to 0
x = 0

-- Keep running the block of code below over and over again until x is 100. 
-- When x is 100, carry on from below the block.
while x < 100 do
  -- Calculate the correct value of y for the current value of x:
	y = x + 10
  
  -- Create a cube at x,y
	point = Instance.new("Part", points)
	point.Anchored = true
	point.Size = Vector3.new(1,1,1)
	point.Position = Vector3.new(x, y, 0)
	
  -- Increase the value of x by 1 and loop back to line 14.
	x = x + 1
end

println("Finished!")

example2.lua

--[[
A variant of the first example that moves the spawn location
instead of creating new parts.
]]

-- Create a variable called "platform" and use it to refer to the spawn location.
-- This assumes that the spawn in your workspace is called "SpawnLocation".
platform = workspace:FindFirstChild("SpawnLocation")

x = 0

while x < 100 do
	y = x + 10

  -- Set the position of the "platform" (i.e. the spawn location).
  -- Note that the player won't move automatically with the platform,
  -- although they can use WASD to walk along above it.
	platform.Position = Vector3.new(x, y, 0)

	x = x + 1
	
  -- Wait for 1 second before looping.
  -- This is quite a long delay and creates a "blocky" animation.
  -- If we shorten the delay to something like 0.1 seconds, 
  -- the animation will look smoother but the platform will move faster!
  -- If we change "x = x + 1" to a smaller increment like "x = x + 0.1",
  -- the movement will slow down again to compensate for the faster loop speed.
	wait(1);
end