49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
package system
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import (
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"fmt"
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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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"joylink.club/rtsssimulation/components/cstate"
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)
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type SignalSystem struct {
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}
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// 信号机显示状态查询
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var signalQuery *ecs.Query = ecs.NewQuery(filter.Contains(components.DeviceIdentityComponent, components.SignalStateComponent))
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// world 执行
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func (me *SignalSystem) Update(world ecs.World) {
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}
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func NewSignalSystem() *SignalSystem {
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return &SignalSystem{}
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}
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// 设置某个信号机的显示
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// 返回值：true-设置成功，false-设置失败
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func SetSignalDisplay(w ecs.World, signalId string, display cstate.SignalAspect) error {
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signalEntry, err := findSignalEntry(w, signalId)
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if err != nil {
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return err
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}
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//
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signalState := components.SignalStateComponent.Get(signalEntry)
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signalState.Display = display
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//
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return nil
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}
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// 获取信号机实体
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func findSignalEntry(w ecs.World, signalId string) (*ecs.Entry, error) {
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var signalEntry *ecs.Entry = queryEntityById(w, signalQuery, signalId)
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if signalEntry != nil {
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return signalEntry, nil
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} else {
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return nil, fmt.Errorf("信号机[%s]的实体不存在", signalId)
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}
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}
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