src/enemies/Straight.ts


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import { canvas } from "../consts";
import { Rectangle } from "../Drawable";
import { IMGS } from "../Images";
import Enemy from "./Enemy";

export default class Straight extends Enemy {
  sprite = IMGS.simpleDown;
  width = IMGS.simpleDown.width;
  height = IMGS.simpleDown.height;
  vel = 2
  phase = 0;
  spriteNum = 1;
  i = 0;
  squares: Rectangle[] = [new Rectangle(this, 2, 2, this.width - 2, this.height - 2)]

  move() {
    let dy = 0;

    if (this.phase === 0) {
      dy = this.vel;
      if (this.y2 > canvas.height - 15) this.phase++;
    }
    if (this.phase === 1) {
      //@ts-expect-error
      this.sprite = IMGS["simpleRot" + this.spriteNum]
      if (this.i++ === 4) { this.i = 0; this.spriteNum++; }
      if (this.spriteNum === 5) { this.sprite = IMGS.simpleUp; this.phase++; }
    }
    if (this.phase === 2) {
      dy = -this.vel;
    }

    this.y += dy;
    this.width = this.sprite.width
    this.height = this.sprite.height
    this.squares = [new Rectangle(this, 2, 2, this.width - 2, this.height - 2)]
    return this.y + this.height < 0
  }
}