star.lua

constants = require 'constants'
---@diagnostic disable: lowercase-global, undefined-global
---@
COLORS = {
    WHITE = { 1, 1, 1 },
    BLACK = { 0.1, 0.1, 0.1 },
}

COLORS_ARRAY = {
    COLORS.WHITE,
    COLORS.BLACK,
}

function drawStar()
    love.graphics.push()
    for i = 1, #stars do
        local star = stars[i]
        love.graphics.setColor(star.color)
        love.graphics.circle(
            'fill',
            star.x,
            star.y,
            star.radius
        )
    end
    love.graphics.pop()
end

function createStars(numStars)
    stars = {}

    for i = 1, numStars do
        table.insert(stars, {
            x = math.random(0, VIRTUAL_WIDTH),
            y = math.random(0, VIRTUAL_HEIGHT),
            radius = math.random(0.1, 1.1),
            speed = math.random(20, 314),
            color = COLORS_ARRAY[math.random(#COLORS_ARRAY)]
        })
    end
    return stars
end

function animateStars(dt)
    for i = 1, #stars do
        local star = stars[i]
        star.y = star.y + star.speed * dt

        if star.y > VIRTUAL_HEIGHT then
            star.y = 0
            star.x = math.random(0, VIRTUAL_WIDTH)
        end
    end
end