package common_sys

import (
	"joylink.club/ecs"
	"joylink.club/ecs/filter"
	"joylink.club/rtsssimulation/component"
)

type CounterDownSys struct {
	query *ecs.Query
}

func NewCounterDownSys() *CounterDownSys {
	return &CounterDownSys{
		query: ecs.NewQuery(filter.Contains(component.CounterDownType)),
	}
}

// 更新
func (c *CounterDownSys) Update(w ecs.World) {
	c.query.Each(w, func(entry *ecs.Entry) {
		cd := component.CounterDownType.Get(entry)
		if cd.Val > 0 {
			v := cd.Val - cd.Step
			if v < 0 {
				cd.Val = 0
			} else {
				cd.Val = v
			}
		}
	})
}