import { Anim, Character, type CharacterContext } from './Character';
import { aimDir } from './Mamie';

/**
 * Le Chat.
 * - Attack: paw swipe.
 * - Special: shoves what is in front of him: falling chunks, loose items, and stunned players
 *   (others only budge a little). Perfect for pushing someone off the edge.
 * - Flaw: now and then he stops to lick his paw for a second, whatever is going on.
 */
export class Chat extends Character {
  private pawTimer = 0;
  private shoveTimer = 0;
  private licking = 0;
  /** Seconds before the next lick, drawn on the first tick. */
  private nextLick = -1;

  onAttack(ctx: CharacterContext): void {
    const p = this.stats.params;
    const [dx, dy] = aimDir(ctx);
    const reach = this.size + p.pawReach;
    const px = ctx.x + dx * reach;
    const py = ctx.y + dy * reach;
    ctx.hit(px, py, p.pawRadius, p.pawKnockback, p.pawStun);
    ctx.emitOp({ kind: 'carve', x: Math.round(px), y: Math.round(py), r: Math.round(p.pawCarve), power: Math.round(p.pawPower) });
    this.pawTimer = p.pawAnim;
  }

  onSpecial(ctx: CharacterContext): void {
    const p = this.stats.params;
    const reach = this.size + p.shoveReach / 2;
    ctx.shove(ctx.x + ctx.facing * reach, ctx.y, p.shoveRadius, ctx.facing * p.shoveSpeed, -p.shoveLift, p.shoveFraction);
    this.shoveTimer = p.shoveAnim;
  }

  override onTick(ctx: CharacterContext, dt: number): void {
    const p = this.stats.params;
    this.pawTimer = Math.max(0, this.pawTimer - dt);
    this.shoveTimer = Math.max(0, this.shoveTimer - dt);
    if (this.nextLick < 0) this.nextLick = p.lickMin + ctx.random() * (p.lickMax - p.lickMin);
    if (this.licking > 0) {
      this.licking = Math.max(0, this.licking - dt);
      return;
    }
    this.nextLick -= dt;
    if (this.nextLick <= 0) {
      this.licking = p.lickTime;
      this.nextLick = p.lickMin + ctx.random() * (p.lickMax - p.lickMin);
      ctx.cue('lick');
    }
  }

  override busy(): boolean {
    return this.licking > 0;
  }

  override anim(): number {
    return (this.pawTimer > 0 ? Anim.Attack : 0) | (this.shoveTimer > 0 ? Anim.Special : 0) | (this.licking > 0 ? Anim.Busy : 0);
  }
}