silphius/app/ecs-systems/clamp-positions.js

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

export default class ClampPositions extends System {

  static get priority() {
    return {
      after: 'IntegratePhysics',
    }
  }

  tick() {
    const {AreaSize} = this.ecs.get(1);
    for (const {Position} of this.ecs.changed(['Position'])) {
      if (Position.x < 0) {
        Position.x = 0;
      }
      if (Position.y < 0) {
        Position.y = 0;
      }
      if (Position.x >= AreaSize.x) {
        Position.x = AreaSize.x - 0.0001;
      }
      if (Position.y >= AreaSize.y) {
        Position.y = AreaSize.y - 0.0001;
      }
    }
  }

}