34 lines
799 B
Go
34 lines
799 B
Go
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package physics_sys
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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/component"
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"joylink.club/rtsssimulation/consts"
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)
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type TwoPositionMovementSys struct {
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query *ecs.Query
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}
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func NewTwoPositionMovementSys() *TwoPositionMovementSys {
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return &TwoPositionMovementSys{
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query: ecs.NewQuery(filter.Contains(component.TwoPositionTransformType)),
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}
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}
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// 更新位置
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func (tp *TwoPositionMovementSys) Update(w ecs.World) {
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tp.query.Each(w, func(entry *ecs.Entry) {
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position := component.TwoPositionTransformType.Get(entry)
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if position.Speed != 0 {
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position.Pos += position.Speed
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if position.Pos < consts.PosMin {
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position.Pos = consts.PosMin
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} else if position.Pos > consts.PosMax {
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position.Pos = consts.PosMax
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}
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}
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})
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}
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