CoderDojo Berlin cheat sheet

cheat-sheet.lua

-- variables

distance = 370.52

-- objects (tables)

hero = {
    strength = 7,
    dexterity = 8,
    endurance = 6,
    charisma = 4,
    wisdom = 4,
    perception = 8,
}

star = {
    x = 430,
    y = 20,
}

-- lists a.k.a. arrays (also tables)

stars = {
    { x = 200, y = 300 },
    { x = 240, y = 40 },
    { x = 360, y = 120 },
    { x = 60,  y = 590 },
}

-- looping over elements of a list a.k.a. array

    for index, star in ipairs(stars) do
	    drawStar(star)
    end

-- graphics

    love.graphics.setColor(r, g, b, a)

    love.graphics.rectangle("fill", x, y, width, height)
    love.graphics.polygon("fill", -width/2, 0, width/2, 0, 0, -height)
    love.graphics.circle("line", x, y, radius, numberOfSides)
    love.graphics.line(x1, y1, x2, y2)

    love.graphics.push()
    love.graphics.translate(x, y)
    love.graphics.rotate(math.pi/4)
    love.graphics.pop()

    love.graphics.getHeight()
    love.graphics.getWidth()

    love.graphics.print("Hello world!", 40, 40)
    love.graphics.printf("Hello world!", 40, 40, love.graphics.getWidth(), "center")

-- entry points

function love.update(delta)
end

function love.draw()
end

-- events ('left', 'right', 'up', 'down', ' ')

    if love.keyboard.isDown("left") then
    	rect.x = rect.x - 100 * delta
    end

-- math

    love.math.random(0, 100)

    math.sin(math.pi/2)
    math.cos(math.pi/2)

    math.sqrt(4)
    math.pow(2, 3)