import {System} from '@/ecs/index.js';

export default class PlantGrowth extends System {

  static queries() {
    return {
      default: ['Interacts'],
    };
  }

  tick() {
    for (const {Direction, Interacts, Position} of this.select('default')) {
      Interacts.willInteractWith = 0
      const box = {
        x: Position.x - 8,
        y: Position.y - 8,
        w: 16,
        h: 16,
      }
      if (0 === Direction.direction) {
        box.y -= 16
      }
      if (1 === Direction.direction) {
        box.x += 16
      }
      if (2 === Direction.direction) {
        box.y += 16
      }
      if (3 === Direction.direction) {
        box.x -= 16
      }
      // todo sort
      const entities = Array.from(this.ecs.system('UpdateSpatialHash').within(
        box.x,
        box.y,
        box.w,
        box.h,
      ));
      for (let j = 0; j < entities.length; ++j) {
        if (entities[j].Interactive && entities[j].Interactive.interacting) {
          Interacts.willInteractWith = entities[0].id;
        }
      }
    }
  }

}