mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-26 03:38:55 +01:00
71 lines
1.3 KiB
Go
71 lines
1.3 KiB
Go
// Copyright 2024 The Ebitengine Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package audio
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import (
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"sync"
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"time"
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)
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type stopwatch struct {
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duration time.Duration
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lastStarted time.Time
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running bool
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m sync.Mutex
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}
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func (s *stopwatch) start() {
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s.m.Lock()
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defer s.m.Unlock()
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if s.running {
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return
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}
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s.lastStarted = time.Now()
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s.running = true
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}
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func (s *stopwatch) stop() {
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s.m.Lock()
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defer s.m.Unlock()
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if !s.running {
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return
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}
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s.duration += time.Since(s.lastStarted)
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s.running = false
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}
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func (s *stopwatch) current() time.Duration {
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s.m.Lock()
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defer s.m.Unlock()
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d := s.duration
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if s.running {
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d += time.Since(s.lastStarted)
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}
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return d
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}
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func (s *stopwatch) reset() {
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s.m.Lock()
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defer s.m.Unlock()
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s.duration = 0
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s.lastStarted = time.Time{}
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s.running = false
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}
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