// title:   MorsePit
// author:  He4eT@oddsquat.org
// desc:    Defeat endless waves of enemies using Morse code.
// site:    https://github.com/He4eT/MorsePit
// license: MIT License
// version: 0.1
// script:  js

function TIC() {
  gameStages[currentStage]()
}

// Stages

const gameStages = {
  mainMenu,
  gameplay,
}

let currentStage = 'mainMenu'

// State

let t = 0
let x = 96
let y = 24

// Main Menu

function mainMenu() {
  if ([BTN_A, BTN_B, BTN_X, BTN_Y].map(btn).some(Boolean)) {
    currentStage = 'gameplay'
  }

  const title = 'Morse Pit'
  const instruction = 'Press any key to start'

  cls(0)

  print(title, 12, 12, 3, false, 2)
  print(instruction, 12, 30, 4)
}

// Gameplay

function gameplay() {
  if (btn(BTN_U)) y--
  if (btn(BTN_D)) y++
  if (btn(BTN_L)) x--
  if (btn(BTN_R)) x++

  cls(13)
  spr(1 + (((t % 60) / 30) | 0) * 2, x, y, 14, 3, 0, 0, 2, 2)
  print('HELLO WORLD!', 84, 84)
  t++
}

// Constants

// Buttons
const [BTN_U, BTN_D, BTN_L, BTN_R, BTN_A, BTN_B, BTN_X, BTN_Y] = [
  ...Array(8).keys(),
]

// <TILES>
// 001:eccccccccc888888caaaaaaaca888888cacccccccacc0ccccacc0ccccacc0ccc
// 002:ccccceee8888cceeaaaa0cee888a0ceeccca0ccc0cca0c0c0cca0c0c0cca0c0c
// 003:eccccccccc888888caaaaaaaca888888cacccccccacccccccacc0ccccacc0ccc
// 004:ccccceee8888cceeaaaa0cee888a0ceeccca0cccccca0c0c0cca0c0c0cca0c0c
// 017:cacccccccaaaaaaacaaacaaacaaaaccccaaaaaaac8888888cc000cccecccccec
// 018:ccca00ccaaaa0ccecaaa0ceeaaaa0ceeaaaa0cee8888ccee000cceeecccceeee
// 019:cacccccccaaaaaaacaaacaaacaaaaccccaaaaaaac8888888cc000cccecccccec
// 020:ccca00ccaaaa0ccecaaa0ceeaaaa0ceeaaaa0cee8888ccee000cceeecccceeee
// </TILES>

// <WAVES>
// 000:00000000ffffffff00000000ffffffff
// 001:0123456789abcdeffedcba9876543210
// 002:0123456789abcdef0123456789abcdef
// </WAVES>

// <SFX>
// 000:000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000304000000000
// </SFX>

// <TRACKS>
// 000:100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
// </TRACKS>

// <PALETTE>
// 000:1a1c2c5d275db13e53ef7d57ffcd75a7f07038b76425717929366f3b5dc941a6f673eff7f4f4f494b0c2566c86333c57
// </PALETTE>