Buttplug sex toy control library
buttplug.io
1// Buttplug Rust Source Code File - See https://buttplug.io for more info.
2//
3// Copyright 2016-2024 Nonpolynomial Labs LLC. All rights reserved.
4//
5// Licensed under the BSD 3-Clause license. See LICENSE file in the project root
6// for full license information.
7
8#[allow(dead_code)]
9pub fn calculate_distance(duration: u32, mut speed: f64) -> f64 {
10 if speed <= 0f64 {
11 return 0f64;
12 }
13
14 if speed > 1f64 {
15 speed = 1f64;
16 }
17
18 let mil = (speed / 250f64).powf(-0.95);
19 let diff = mil - (duration as f64);
20 if diff.abs() < 0.001 {
21 0f64
22 } else {
23 ((90f64 - (diff / mil * 90f64)) / 100f64)
24 .min(1f64)
25 .max(0f64)
26 }
27}
28
29pub fn calculate_speed(mut distance: f64, duration: u32) -> f64 {
30 if distance < 0f64 {
31 return 0f64;
32 }
33
34 if distance > 1f64 {
35 distance = 1f64;
36 }
37
38 let scalar = ((duration as f64 * 90f64) / (distance * 100f64)).powf(-1.05);
39
40 250f64 * scalar
41}
42
43pub fn calculate_duration(mut distance: f64, mut speed: f64) -> u32 {
44 if distance <= 0f64 || speed <= 0f64 {
45 return 0;
46 }
47
48 if distance > 1f64 {
49 distance = 1f64;
50 }
51
52 if speed > 1f64 {
53 speed = 1f64;
54 }
55
56 let mil = (speed / 250f64).powf(-0.95);
57 (mil / (90f64 / (distance * 100f64))) as u32
58}