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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
#pragma once
#include "accel-union.hpp"
#include "utility.hpp"
#define _USE_MATH_DEFINES
#include <math.h>
namespace rawaccel {
/// <summary> Struct to hold vector rotation details. </summary>
struct rotator {
/// <summary> Rotational vector, which points in the direction of the post-rotation positive x axis. </summary>
vec2d rot_vec = { 1, 0 };
/// <summary>
/// Rotates given input vector according to struct's rotational vector.
/// </summary>
/// <param name="input">Input vector to be rotated</param>
/// <returns>2d vector of rotated input.</returns>
inline vec2d apply(const vec2d& input) const {
return {
input.x * rot_vec.x - input.y * rot_vec.y,
input.x * rot_vec.y + input.y * rot_vec.x
};
}
rotator(double degrees) {
double rads = degrees * M_PI / 180;
rot_vec = { cos(rads), sin(rads) };
}
rotator() = default;
};
struct snapper {
double threshold = 0;
inline vec2d apply(const vec2d& input) const {
if (input.x != 0 && input.y != 0) {
double angle = fabs(atan(input.y / input.x));
auto mag = [&] { return sqrtsd(input.x * input.x + input.y * input.y); };
if (angle > M_PI_2 - threshold) return { 0, _copysign(mag(), input.y) };
if (angle < threshold) return { _copysign(mag(), input.x), 0 };
}
return input;
}
snapper(double degrees) : threshold(minsd(fabs(degrees), 45) * M_PI / 180) {}
snapper() = default;
};
inline void cap_speed(vec2d& v, double cap, double norm) {
double speed = sqrtsd(v.x * v.x + v.y * v.y) * norm;
double ratio = minsd(speed, cap) / speed;
v.x *= ratio;
v.y *= ratio;
}
struct weighted_distance {
double p = 2.0;
double p_inverse = 0.5;
bool lp_norm_infinity = false;
double sigma_x = 1.0;
double sigma_y = 1.0;
weighted_distance(const domain_args& args)
{
sigma_x = args.domain_weights.x;
sigma_y = args.domain_weights.y;
if (args.lp_norm <= 0)
{
lp_norm_infinity = true;
p = 0.0;
p_inverse = 0.0;
}
else
{
lp_norm_infinity = false;
p = args.lp_norm;
p_inverse = 1 / args.lp_norm;
}
}
inline double calculate(double x, double y)
{
double abs_x = fabs(x);
double abs_y = fabs(y);
if (lp_norm_infinity) return maxsd(abs_x, abs_y);
double x_scaled = abs_x * sigma_x;
double y_scaled = abs_y * sigma_y;
if (p == 2) return sqrtsd(x_scaled * x_scaled + y_scaled * y_scaled);
else return pow(pow(x_scaled, p) + pow(y_scaled, p), p_inverse);
}
weighted_distance() = default;
};
struct direction_weight {
double diff = 0.0;
double start = 1.0;
bool should_apply = false;
direction_weight(const vec2d& thetas)
{
diff = thetas.y - thetas.x;
start = thetas.x;
should_apply = diff != 0;
}
inline double atan_scale(double x, double y)
{
return M_2_PI * atan2(fabs(y), fabs(x));
}
inline double apply(double x, double y)
{
return atan_scale(x, y) * diff + start;
}
direction_weight() = default;
};
/// <summary> Struct to hold variables and methods for modifying mouse input </summary>
struct mouse_modifier {
bool apply_rotate = false;
bool apply_snap = false;
bool apply_accel = false;
bool by_component = false;
rotator rotate;
snapper snap;
double dpi_factor = 1;
double speed_cap = 0;
weighted_distance distance;
direction_weight directional;
vec2<accel_variant> accels;
vec2d sensitivity = { 1, 1 };
vec2d directional_multipliers = {};
mouse_modifier(const settings& args, vec2<si_pair*> luts = {}) :
by_component(!args.combine_mags),
dpi_factor(1000 / args.dpi),
speed_cap(args.speed_cap)
{
if (args.degrees_rotation != 0) {
rotate = rotator(args.degrees_rotation);
apply_rotate = true;
}
if (args.degrees_snap != 0) {
snap = snapper(args.degrees_snap);
apply_snap = true;
}
if (args.sens.x != 0) sensitivity.x = args.sens.x;
if (args.sens.y != 0) sensitivity.y = args.sens.y;
directional_multipliers.x = fabs(args.dir_multipliers.x);
directional_multipliers.y = fabs(args.dir_multipliers.y);
if ((!by_component && args.argsv.x.mode == accel_mode::noaccel) ||
(args.argsv.x.mode == accel_mode::noaccel &&
args.argsv.y.mode == accel_mode::noaccel)) {
return;
}
accels.x = accel_variant(args.argsv.x, luts.x);
accels.y = accel_variant(args.argsv.y, luts.y);
distance = weighted_distance(args.dom_args);
directional = direction_weight(args.range_weights);
apply_accel = true;
}
void modify(vec2d& movement, milliseconds time) {
apply_rotation(movement);
apply_angle_snap(movement);
apply_acceleration(movement, [=] { return time; });
apply_sensitivity(movement);
}
inline void apply_rotation(vec2d& movement) {
if (apply_rotate) movement = rotate.apply(movement);
}
inline void apply_angle_snap(vec2d& movement) {
if (apply_snap) movement = snap.apply(movement);
}
template <typename TimeSupplier>
inline void apply_acceleration(vec2d& movement, TimeSupplier time_supp) {
if (apply_accel) {
milliseconds time = time_supp();
double norm = dpi_factor / time;
if (speed_cap > 0) cap_speed(movement, speed_cap, norm);
if (!by_component) {
double mag = distance.calculate(movement.x, movement.y);
double speed = mag * norm;
double scale = accels.x.apply(speed);
if (directional.should_apply)
{
scale = (scale - 1)*directional.apply(movement.x, movement.y) + 1;
}
movement.x *= scale;
movement.y *= scale;
}
else {
movement.x *= accels.x.apply(fabs(movement.x) * norm);
movement.y *= accels.y.apply(fabs(movement.y) * norm);
}
}
}
inline void apply_sensitivity(vec2d& movement) {
movement.x *= sensitivity.x;
movement.y *= sensitivity.y;
if (directional_multipliers.x > 0 && movement.x < 0) {
movement.x *= directional_multipliers.x;
}
if (directional_multipliers.y > 0 && movement.y < 0) {
movement.y *= directional_multipliers.y;
}
}
mouse_modifier() = default;
};
} // rawaccel
|