/
counter.go
47 lines (42 loc) · 1.1 KB
/
counter.go
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// Copyright 2014 Arne Roomann-Kurrik
//
// 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.
package twodee
import (
"github.com/go-gl/glfw/v3.1/glfw"
"math"
)
type Counter struct {
Count int64
Total float64
Last float64
Avg float32
}
func NewCounter() *Counter {
return &Counter{}
}
func (c *Counter) Incr() {
now := glfw.GetTime()
if int32(c.Last) != int32(now) {
c.Total += math.Remainder(now-c.Last, 1)
c.Count += 1
avg := c.Total / float64(c.Count)
c.Avg = float32(avg * 1000)
c.Total = math.Remainder(now, 1)
c.Count = 1
} else {
c.Total += (now - c.Last)
c.Count += 1
}
c.Last = now
}