SCRIPT-8

README.md

This is a SCRIPT-8 cassette. Click here to boot it.

chains.json

{
  "0": {
    "0": {
      "0": 0
    }
  },
  "1": {
    "0": {
      "0": 1
    }
  }
}

code.js

// title: Break-8

const e = {
  paddle: {
    width: 64,
    height: 8,
    color: 3
  },
  ball: {
    width: 32,
    height: 32,
    color: 0
  }
}

initialState = {
  won: 0,
  lost: 0,
  actors: [
    {
      name: 'paddle',
      x: 64 - e.paddle.width / 2,
      y: 128 - e.paddle.height - 2
    },
    {
      name: 'ball',
      x: 80 - e.ball.width / 2,
      y: 27,
      dx: 1,
      dy: 1
    }
  ]
}

const movePaddle = (paddle, input) => {
  if (input.left && paddle.x > 0) paddle.x = Math.floor(paddle.x - 1)
  if (input.right && paddle.x < 128 - e.paddle.width) {
    paddle.x = Math.floor(paddle.x + 1)
  }
}

const bounceBallOffWalls = ball => {
  if (ball.x < 1 || ball.x > 127 - e.ball.width) {
    ball.dx *= -1
    playSong(0)
  }
  if (ball.y < 1) {
    ball.dy *= -1
    playSong(0)
  }
}

const bounceBallOffPaddle = (ball, paddle, state) => {
  if (
    // Left bounce
    ball.y + e.ball.height > paddle.y &&
    ball.x + e.ball.width >= paddle.x &&
    ball.x <= paddle.x
  ) {
    ball.dx = -1
  } else if (
    // Right bounce
    ball.y + e.ball.height > paddle.y &&
    ball.x <= paddle.x + e.paddle.width &&
    ball.x + e.ball.width >= paddle.x + e.paddle.width
  ) {
    ball.dx = 1
  } else if (
    // Top bounce
    ball.y + e.ball.height >= paddle.y &&
    ball.x + e.ball.width >= paddle.x &&
    ball.x <= paddle.x + e.paddle.width
  ) {
    ball.dy *= -1
    state.won++
    e.ball.width = Math.max(1, e.ball.width / 2)
    e.ball.height = Math.max(1, e.ball.height / 2)
    e.paddle.width = Math.max(1, e.paddle.width / 2)
    playSong(1)
  }
}

const moveBall = ball => {
  ball.x = Math.floor(ball.x + ball.dx)
  ball.y = Math.floor(ball.y + ball.dy)
}

const loseBall = (ball, state) => {
  if (ball.y > 127) {
    ball.x = random(e.ball.width, 128 - e.ball.width * 2)
    ball.y = 64
    state.lost++
    e.ball.width = Math.max(1, e.ball.width / 2)
    e.ball.height = Math.max(1, e.ball.height / 2)
    e.paddle.width = Math.max(1, e.paddle.width / 2)
  }
}

update = (state, input) => {
  const paddle = state.actors.find(d => d.name === 'paddle')
  const ball = state.actors.find(d => d.name === 'ball')
  movePaddle(paddle, input)
//   paddle.x = ball.x
  moveBall(ball)
  bounceBallOffWalls(ball)
  bounceBallOffPaddle(ball, paddle, state)
  loseBall(ball, state)
}

const drawActor = (actor, fade) => {
  if (actor.name === 'paddle') {
    rectFill(
      actor.x,
      actor.y,
      e.paddle.width,
      e.paddle.height,
      e.paddle.color + (fade ? 3 : 0)
    )
  }
  if (actor.name === 'ball') {
    rectFill(
      actor.x,
      actor.y,
      e.ball.width,
      e.ball.height,
      e.ball.color + (fade ? 5 : 0)
    )
  }
}

drawActors = (state, fade) => {
  state.actors.forEach(actor => drawActor(actor, fade))
}

draw = state => {
  clear()
  rectStroke(0, 0, 128, 128, 6)
  drawActors(state)
  range(state.won).forEach(i => {
    sprite(2 + i * 6, 2, 2)
  })
  range(state.lost).forEach(i => {
    sprite(2 + i * 6, 8, 1)
  })
}

phrases.json

{
  "0": [
    "0c17"
  ],
  "1": [
    "0c#37"
  ]
}

songs.json

{
  "0": {
    "0": 0
  },
  "1": {
    "0": 1
  }
}

sprites.json

{
  "1": [
    "3   3   ",
    " 3 3    ",
    "  3     ",
    " 3 3    ",
    "3   3   ",
    "        ",
    "        ",
    "        "
  ],
  "2": [
    " 0 0    ",
    "        ",
    "        ",
    "0   0   ",
    " 000    ",
    "        ",
    "        ",
    "        "
  ]
}