namastejs/src/games/invaders/index.js

A spiritual greeting from your JavaScript code. Because every function deserves a 'Namaste 🙏'

const state = require("./state");
const { FPS } = require("./config");
const initInput = require("./input");
const spawnEnemies = require("./systems/spawn");
const {
  moveEnemies,
  moveBullets,
  moveEnemyBullets,
} = require("./systems/movement");
const enemyShoot = require("./systems/enemyShoot");
const handleCollisions = require("./systems/collision");

const {
  drawBorder,
  drawHeader,
  createGrid,
  renderGrid,
  drawPlayer,
  drawEnemies,
  parkCursor,
  drawBullets,
  drawExplosions,
  drawEnemyBullets,
} = require("./renderer");

// hide cursor
process.stdout.write("\x1B[?25l");

function restoreTerminal() {
  process.stdout.write("\x1B[?25h");
  process.stdin.setRawMode(false);
  process.stdin.pause();
  console.clear();
}

process.stdin.on("data", (k) => {
  if (k.toString() === "\u0003") restoreTerminal();
});

function gameLoop() {
  if (!state.running) return;

  enemyShoot(state);

  if (state.enemyShootCooldown > 0) {
    state.enemyShootCooldown--;
  }

  moveEnemies(state);
  moveBullets(state);
  moveEnemyBullets(state);

  handleCollisions(state);

  drawHeader(state);

  const grid = createGrid();
  drawPlayer(grid, state.player);
  drawEnemies(grid, state.enemies);
  drawBullets(grid, state.bullets);
  drawEnemyBullets(grid, state.enemyBullets);
  drawExplosions(grid, state.explosions);

  state.explosions = state.explosions.filter((e) => e.ttl > 0);

  renderGrid(grid);
  parkCursor();

  setTimeout(gameLoop, 1000 / FPS);
}

function start() {
  process.stdin.setRawMode(true);
  process.stdin.resume();

  console.clear();
  drawBorder();

  spawnEnemies(state); // 👾 spawn once
  initInput(state);
  gameLoop();
}

start();