mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-25 11:18:54 +01:00
36 lines
1.0 KiB
Go
36 lines
1.0 KiB
Go
// Copyright 2016 Hajime Hoshi
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// +build js
|
|
|
|
package clock
|
|
|
|
import (
|
|
"syscall/js"
|
|
"time"
|
|
)
|
|
|
|
var (
|
|
jsPerformance = js.Global().Get("performance")
|
|
jsNow = jsPerformance.Get("now").Call("bind", jsPerformance)
|
|
)
|
|
|
|
func now() int64 {
|
|
// time.Now() is not reliable until GopherJS supports performance.now().
|
|
//
|
|
// performance.now is monotonic:
|
|
// https://www.w3.org/TR/hr-time-2/#sec-monotonic-clock
|
|
return int64(jsNow.Invoke().Float() * float64(time.Millisecond))
|
|
}
|