easey 1.1.1

Easing functions for interpolation between 0.0 and 1.0
Documentation 
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

macro_rules! generate_pre_delay {
    ( $fxx:ident ) => {
        ///
        /// This compresses the 0.0 to 1.0 range,
        /// so that there is a delay at the start.
        ///
        /// i.e. From this graph ...
        ///
        /// ```text
        ///   |      /
        ///   |     /
        ///   |    /
        ///   |   /
        ///   | /
        ///   --------
        /// ```
        ///
        /// To this ...
        ///
        /// ```text
        ///   |       /
        ///   |      |
        ///   |     /
        ///   |    |
        ///   |   /
        ///   --------
        /// ```
        ///
        /// ^ Note how the graph is more compressed on the right.
        ///
        pub fn pre_delay(n: $fxx, delay_point: $fxx) -> $fxx {
            if n < delay_point {
                0.0
            } else {
                (n - delay_point) / (1.0 - delay_point)
            }
        }
    };
}