/** @format */

import {ECSSystem} from '../lib/ECSSystem'
import {GenFilterKey} from '../lib/ECSComponent'
import {FightWorld} from '../worlds/FightWorld'
import {ComDie} from '../components/ComDie'
import {ComRole} from '../components/ComRole'
import {ComDizzy} from '../components/ComDizzy'
import {ComBehaviorTree} from '../components/ComBehaviorTree'

const FILTER_DIZZY_TIME = GenFilterKey([ComDizzy, ComRole, ComBehaviorTree], [ComDie])

export class SysDizzy extends ECSSystem {
    /** 连接 */
    public onAdd(world: FightWorld): void {}

    /** 断开连接 */
    public onRemove(world: FightWorld): void {}

    /** 添加实体 */
    public onEntityEnter(world: FightWorld, entity: number): void {}

    /**  */
    public onEntityLeave(world: FightWorld, entity: number): void {}

    /** 更新 */
    public onUpdate(world: FightWorld, dt: number): void {
        let filter = world.getFilter(FILTER_DIZZY_TIME)
        filter.walk((entity: number) => {
            let comDizzy = world.getComponent(entity, ComDizzy)
            if (!comDizzy.dirty) return
            comDizzy.countDown -= dt
            if (comDizzy.countDown <= 0) {
                comDizzy.dirty = false
            }
            return false
        })
    }
}