SCRIPT-8

README.md

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

chains.json

{}

code.js

init = state => {
  state.time = 0;
  state.ship = { x: 67, y: 14, xSpeed: 0, ySpeed: 0 };
  state.asteroids = [{
    x: random(20,120), y: 25, xSpeed: 0.25, ySpeed: 0
  },{
    x: random(20,120), y: 25, xSpeed: 1, ySpeed: 0
  }];
}

update = (state, key, elapsed) => {
  state.time += elapsed / 42;
  state.delta = elapsed * (1 / 24);
  
//   if(state.showHelp) {
//     if(key.a) state.showHelp = false;
//   }
  
  updateShip(state, key);
  updateAsteroids(state);
}

let updateAsteroids = (state) => {
  state.asteroids.map(a => {
    a.x += a.xSpeed;
    if (a.x > 128) a.x = -20
  })
}

let updateShip = (state, key) => {
  if(!key.left && !key.right && !key.up && !key.down) {
    const [xR, yR] = [random() - 0.5, random() - 0.5];
    state.ship.xSpeed += xR / 32 * 2 * state.delta;
    state.ship.ySpeed += yR / 64 * 2 * state.delta
  }
  if(key.left) state.ship.xSpeed -= 0.2 * state.delta;
  if(key.right) state.ship.xSpeed += 0.2 * state.delta;
  if(key.down) state.ship.ySpeed += 0.1 * state.delta;
  if(key.up) state.ship.ySpeed -= 0.1 * state.delta;
  
  // decelerate
  if(state.ship.xSpeed !== 0) {
    state.ship.x += state.ship.xSpeed * state.delta;
    state.ship.xSpeed *= .95;
  }
  if(state.ship.ySpeed !== 0) {
    state.ship.y += state.ship.ySpeed * state.delta;
    state.ship.ySpeed *= .95;
  }
  // limit
  if(state.ship.y < 2) {
    state.ship.y = 2;
    state.ship.ySpeed = 0;
  }
  if(state.ship.y > state.maxY) {
    state.ship.y = state.maxY;
    state.ship.ySpeed = 0;
  }
  
  if(state.ship.x < 8) { state.ship.x = 8; }
  if(state.ship.x > 127 - 12) { state.ship.x = 127 - 12; }
}


draw = state => {
  clear(6)
  drawAsteroids(state.asteroids, state.time);
  drawShip(state.ship, state.time);
}

let drawShip = (ship, time) => {
  const animPhase = time / 3 % 1;
  const shade = (90 - ship.y) / 90 * -3 + 1 | 0;
  sprite(ship.x - 8, ship.y - 8, 0, shade)
//   sprite(copter.x,     copter.y - 8, animPhase < 0.5 ? 1 : 3, shade)
//   sprite(copter.x - 8, copter.y, 16, shade)
//   sprite(copter.x, copter.y, 17, shade)
//   sprite(copter.x + 8, copter.y, animPhase < 0.33 ? 18 : animPhase < 0.67 ? 19 : 20, shade)
}

let drawAsteroids = (asteroids) => {
  asteroids.map(a => {
    sprite(a.x, a.y, 1)
  })
}

map.json

[]

misc.json

{
  "iframeVersion": "0.1.280",
  "lines": [
    64,
    21,
    0,
    0,
    0,
    0,
    0,
    0
  ]
}

phrases.json

{}

songs.json

{}

sprites.json

{
  "0": [
    "    0   ",
    "   060  ",
    "   000  ",
    "   000  ",
    "  00000 ",
    " 0000000",
    " 0000000",
    " 0     0"
  ],
  "1": [
    "    22  ",
    "  22  2 ",
    " 2    2 ",
    "2      2",
    "2      2",
    " 22    2",
    "   2  2 ",
    "    22  "
  ],
  "2": [
    "    222 ",
    "   2   2",
    " 22     ",
    "2       ",
    "2       ",
    "2       ",
    " 2      ",
    " 2      "
  ],
  "3": [
    "        ",
    "2       ",
    " 22     ",
    "   2    ",
    "    2   ",
    "    2   ",
    "     2  ",
    "    2   "
  ],
  "4": [
    "   222  ",
    " 22   22",
    "2       ",
    "2       ",
    "2       ",
    "2       ",
    "2       ",
    " 2      "
  ],
  "5": [
    "        ",
    "22222   ",
    "     222",
    "        ",
    "        ",
    "        ",
    "        ",
    "        "
  ],
  "6": [
    "        ",
    "        ",
    "        ",
    "2       ",
    " 222    ",
    "    22  ",
    "      2 ",
    "       2"
  ],
  "7": [
    "        ",
    "        ",
    "        ",
    "        ",
    "        ",
    "        ",
    "        ",
    "2       "
  ],
  "18": [
    " 2      ",
    " 2      ",
    "  2   22",
    "   222  ",
    "        ",
    "        ",
    "        ",
    "        "
  ],
  "19": [
    "    2   ",
    "   2    ",
    " 22     ",
    "2       ",
    "        ",
    "        ",
    "        ",
    "        "
  ],
  "20": [
    " 2      ",
    " 2      ",
    "  2     ",
    "  2     ",
    "  2     ",
    "   2    ",
    "    2   ",
    "     222"
  ],
  "23": [
    "2       ",
    " 2      ",
    " 2      ",
    "  2     ",
    "  2     ",
    "   2    ",
    "   2    ",
    "   2    "
  ],
  "37": [
    "2       ",
    "2       ",
    " 2      ",
    "  2     ",
    "  2     ",
    "   22   ",
    "     222",
    "        "
  ],
  "38": [
    "        ",
    "        ",
    "        ",
    "       2",
    "     22 ",
    "  222   ",
    "22      ",
    "        "
  ],
  "39": [
    "   2    ",
    "   2    ",
    " 22     ",
    "2       ",
    "        ",
    "        ",
    "        ",
    "        "
  ]
}