blob: d499d342c2e48fcc1ad5436528a72672604135c1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-AGPL3
*/
#ifndef __AVGDIFFTRACKER_H
#define __AVGDIFFTRACKER_H
#include "Common.h"
#include <cstring>
#define AVG_DIFF_COUNT 500
class AvgDiffTracker
{
public:
AvgDiffTracker() : total(0), index(0), average(0) { memset(&tab, 0, sizeof(tab)); max[0] = 0; max[1] = 0; }
uint32 getAverage()
{
return average;
}
uint32 getTimeWeightedAverage()
{
if (tab[AVG_DIFF_COUNT - 1] == 0)
return 0;
uint32 sum = 0, weightsum = 0;
for (uint32 i = 0; i < AVG_DIFF_COUNT; ++i)
{
sum += tab[i] * tab[i];
weightsum += tab[i];
}
return sum / weightsum;
}
uint32 getMax()
{
return max[0] > max[1] ? max[0] : max[1];
}
void Update(uint32 diff)
{
if (diff < 1)
diff = 1;
total -= tab[index];
total += diff;
tab[index] = diff;
if (diff > max[0])
max[0] = diff;
if (++index >= AVG_DIFF_COUNT)
{
index = 0;
max[1] = max[0];
max[0] = 0;
}
if (tab[AVG_DIFF_COUNT - 1])
average = total / AVG_DIFF_COUNT;
else if (index)
average = total / index;
else
average = 0;
}
private:
uint32 tab[AVG_DIFF_COUNT];
uint32 total;
uint32 index;
uint32 max[2];
uint32 average;
};
extern AvgDiffTracker avgDiffTracker;
extern AvgDiffTracker lfgDiffTracker;
extern AvgDiffTracker devDiffTracker;
#endif
|
