32 lines
760 B
Go
32 lines
760 B
Go
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package system
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import (
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"github.com/yohamta/donburi/filter"
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"joylink.club/ecs"
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"joylink.club/rtsssimulation/components"
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)
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// 按速度移动的设备系统
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// 只负责按速度移动位置，由该组件的观察者负责解释位置
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type MovableDeviceSystem struct {
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query *ecs.Query
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}
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func NewMovableDeviceSystem() *MovableDeviceSystem {
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return &MovableDeviceSystem{query: ecs.NewQuery(filter.Contains(components.MovableDeviceStateComponent))}
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}
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// world 执行
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func (me *MovableDeviceSystem) Update(world ecs.World) {
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me.query.Each(world, func(e *ecs.Entry) {
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md := components.MovableDeviceStateComponent.Get(e)
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if md.Speed > 0 {
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if md.ToH {
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md.Position += int64(md.Speed)
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} else {
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md.Position -= int64(md.Speed)
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}
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}
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})
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}
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