blob: 714162fa2434e20e70fb280b192bddb6878f39eb (
plain) (
blame)
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
|
#pragma once
namespace rawaccel {
/// <summary> Struct to hold arguments for an acceleration function. </summary>
struct accel_args {
double offset = 0;
double legacy_offset = 0;
double accel = 0;
double limit = 2;
double exponent = 2;
double midpoint = 0;
double power_scale = 1;
double power_exp = 0.05;
double weight = 1;
double rate = 0;
double scale_cap = 0;
double gain_cap = 0;
};
template <typename Func>
struct accel_val_base {
bool legacy_offset = false;
double offset = 0;
double weight = 1;
Func fn;
accel_val_base(const accel_args& args) : fn(args) {}
};
template <typename Func>
struct additive_accel : accel_val_base<Func> {
additive_accel(const accel_args& args) : accel_val_base(args) {
legacy_offset = args.offset <= 0 && args.legacy_offset > 0;
offset = legacy_offset ? args.legacy_offset : args.offset;
weight = args.weight;
}
inline double operator()(double speed) const {
double offset_speed = speed - offset;
return offset_speed > 0 ? ( legacy_offset ? 1 + fn.legacy_offset(offset_speed) * weight : 1 + fn(offset_speed) ) : 1;
}
};
template <typename Func>
struct nonadditive_accel : accel_val_base<Func> {
nonadditive_accel(const accel_args& args) : accel_val_base(args) {
if (args.weight != 0) weight = args.weight;
}
inline double operator()(double speed) const {
return fn(speed) * weight;
}
};
}
|