Primitives

A window, and one frame's worth of drawing. Every call goes to the target bound by natiny.window.bind; natiny.render.set_color holds until the next one changes it.

Filled shapes on the top row, the same ones outlined below.


    


    

        

            main.lua
            

                
            

        

        

            
local natiny = require("natiny")
local demo = require("common.modules.demo")

natiny.backend.init()

local win = natiny.window.create("Primitives", 900, 600)
natiny.window.set_scale_mode(win, natiny.window.SCALE_MODE_STRETCH)

local BG     = {  21 / 255,  30 / 255,  44 / 255 } -- #151E2C
local OBJECT = { 169 / 255, 179 / 255, 197 / 255 } -- #A9B3C5
local ACCENT = { 248 / 255, 249 / 255, 253 / 255 } -- #F8F9FD

local function color(c)
    natiny.render.set_color(c[1], c[2], c[3], 1.0)
end

local function frame(dt)
    natiny.window.bind(win, function()
        natiny.render.clear(BG[1], BG[2], BG[3], 1.0)

        -- filled, on the top row
        color(ACCENT)
        natiny.render.rectangle(50, 80, 180, 120)

        color(OBJECT)
        natiny.render.circle(350, 140, 65)

        color(ACCENT)
        natiny.render.triangle(500, 205, 590, 75, 680, 205)

        color(OBJECT)
        natiny.render.poly(800, 140, 6, 60, 0)

        -- the same shapes, outlined, on the bottom row
        color(ACCENT)
        natiny.render.rectangle_outline(50, 340, 180, 120, 3)

        color(OBJECT)
        natiny.render.circle_outline(350, 400, 65, 3)

        color(ACCENT)
        natiny.render.triangle_outline(500, 465, 590, 335, 680, 465, 3)

        color(OBJECT)
        natiny.render.poly_outline(800, 400, 6, 60, 0, 3)

        -- a line is its own primitive: two points and a width
        color(OBJECT)
        natiny.render.line(50, 270, 850, 270, 2)
    end)
end

demo:run({
    window = win,
    title  = "Primitives",
    text   = "Filled on the top row, outlined on the bottom",
    loop = frame,
})

natiny.backend.shutdown()