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

extern crate num;

use num_traits::NumOps;

/**
Maps a given number of a range onto another range.

# Arguments
* `value` - The original value to be mapped.
* `start1` - The original start value of the number range.
* `end1` - The original end value of the number range.
* `start2` - The new start value of the number range.
* `end2` - The new start value of the number range.

# Returns
A number containing the new mapped value.

# Examples
```
use lib_rapid::rapidmath;

let result: i32 = rapidmath::map(5., 0., 10., 0., 1.); // Original value 5 in the range from 0-10
std::println!("{}", result.to_string()) // Prints "0.5"
```
*/
pub fn map<T: NumOps + Copy>(value: T, start1: T, end1: T, start2: T, end2: T) -> T {

    (start2 + (end2 - start2)) * ((value - start1) / end1 - start1)
}