-- Get a reference to the parent part
local platform = script.parent

-- Spin forever, 45 degrees per tick
loop {
    platform.spin("y", 45 * 0.05)
    wait(0.05)
}

local p = script.parent
local t = 0
loop {
    t = t + 0.05
    local r = math.sin(t) * 0.5 + 0.5
    local g = math.cos(t * 1.3) * 0.5 + 0.5
    p.set_color(Color(r, g, 0.8, 1))
    wait(0.05)
}

local p = script.parent
local a = Vector3(0, 1, 0)
local b = Vector3(0, 8, 0)
loop {
    p.move_to(a)
    wait(2)
    p.move_to(b)
    wait(2)
}

local x    = 10
local name = "platform"
local flag = true
local pos  = Vector3(0, 5, 0)

-- Array-style (1-indexed!)
local colors = { Color(1,0,0,1), Color(0,1,0,1) }
local first  = colors[1]   -- red

-- Dict-style
local cfg = { speed = 3.0, height = 5 }
print(cfg.speed)    -- 3.0

-- single-line comment

--[[
  multi-line block comment
]]

if x > 10 then
    print("big")
elseif x > 5 then
    print("medium")
else
    print("small")
end

local i = 0
while i < 5 do
    print(i)
    i = i + 1
end

-- for i = start, stop [, step]
for i = 1, 5 do
    print(i)   -- 1 2 3 4 5
end

for i = 10, 1, -2 do
    print(i)   -- 10 8 6 4 2
end

loop {
    -- runs every 0.1 seconds forever
    wait(0.1)
}

for i = 1, 100 do
    if i == 5 then break end
    print(i)
end

-- Named function
function greet(name)
    print("Hello, " .. name)
end

-- Local named function
local function square(n)
    return n * n
end

-- First-class / anonymous
local add = function(a, b)
    return a + b
end

local count = 0
local function increment()
    count = count + 1
    return count
end
print(increment())  -- 1
print(increment())  -- 2

^
* / // %
+ -
..
< <= > >= == ~=
and
or

local sfx    = sound("AmbientHum")
sfx.enabled  = true
sfx.volume   = -6    -- 6dB quieter
sfx.distance = 40   -- audible from further away

Vector3(x, y, z)   -- all args default to 0
Vector3()           -- (0, 0, 0)
Vector3(1, 2, 3)    -- (1, 2, 3)

local v = Vector3(1, 2, 3)
print(v.x, v.y, v.z)   -- 1  2  3
local d = v * 3          -- Vector3(3,6,9)
local s = v + Vector3(1,0,0)  -- Vector3(2,2,3)

Color(r, g, b, a)        -- a defaults to 1.0
Color(1, 0, 0)            -- solid red
Color(0, 1, 0, 0.5)      -- semi-transparent green

local n = scene.player_count()
print("Players: " .. tostring(n))

local p     = script.parent
local start = Vector3(0, 1, 0)
local goal  = Vector3(0, 8, 0)
local t     = 0
loop {
    t = (t + 0.01) % 1
    local pos = vec3_lerp(start, goal, math.sin(t * math.pi) * 0.5 + 0.5)
    p.move_to(pos)
    wait(0.016)
}

local gate    = script.parent
local trigger = part("TriggerZone")
loop {
    if gate.distance_to(trigger) < 3 then
        gate.hide()
    else
        gate.show()
    end
    wait(0.1)
}

local p = script.parent
p.set_color(Color(1,0,0))   -- red
wait(2)
p.set_color(Color(1,1,0))   -- yellow
wait(1)
p.set_color(Color(0,1,0))   -- green

local lights = find_parts_with_prefix("Light_")
local n      = table.size(lights)
local on     = true
loop {
    for i = 1, n do lights[i].set_visible(on) end
    on = not on
    wait(0.5)
}

local p   = script.parent
local hue = 0
loop {
    hue = (hue + 0.005) % 1
    p.set_color(color_from_hsv(hue, 1, 1))
    wait(0.016)
}

local p = script.parent
local t = 0
loop {
    t = t + 0.05
    local s = 1 + math.sin(t) * 0.3
    p.set_size(Vector3(s, s, s))
    wait(0.05)
}

local t = { "a", "b", "c" }
print(t[1])   -- "a" ✓
print(t[0])   -- nil  ✗ common mistake

-- ✓ Correct
for i = 1, table.size(t) do
    print(t[i])
end

-- ✗ NOT supported in VXLua
for k, v in pairs(t) do end

if x ~= 0 then   -- ✓ correct
if x != 0 then   -- ✗ parse error