gradients.mar

import ui.mar

fun main(): Never {
  var texture = screen_texture()

  var patterns = list(
    16#001122,
    16#110022,
    16#112200,
    16#220011,
    16#221100,
    16#ff1122,
    16#11ff22,
    16#1122ff,
    16#22ff11,
    16#2211ff,
  )
  var enters = 0
  println("Before loop")

  loop {
    var pattern = patterns.get(enters % patterns.len)
    var rpattern = pattern & 16#ff0000 >> 16
    var gpattern = pattern & 16#00ff00 >> 8
    var bpattern = pattern & 16#0000ff
    for x in 0..texture.width do
      for y in 0..texture.height do {
        var xcomponent = x * 255 / texture.width
        var ycomponent = y * 255 / texture.height
        var color = color(
          if rpattern == 16#11 then xcomponent else if rpattern == 16#22 then ycomponent else rpattern.lower_byte().to_int(),
          if gpattern == 16#11 then xcomponent else if gpattern == 16#22 then ycomponent else gpattern.lower_byte().to_int(),
          if bpattern == 16#11 then xcomponent else if bpattern == 16#22 then ycomponent else bpattern.lower_byte().to_int(),
        )
        texture.&.draw(x @ y, color)
        if get_pressed_key() is some(key) then if key is enter then enters.& += 1
      }
    texture.show()
  }

  exit(0)
}