blob: 1c5e4ca173f06d51891b2fa8ae4211e4a0968c6b (
plain)
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
|
// Various ways to generate single random colors
package colorful
import (
"math/rand"
)
// Creates a random dark, "warm" color through a restricted HSV space.
func FastWarmColor() Color {
return Hsv(
rand.Float64() * 360.0,
0.5 + rand.Float64()*0.3,
0.3 + rand.Float64()*0.3)
}
// Creates a random dark, "warm" color through restricted HCL space.
// This is slower than FastWarmColor but will likely give you colors which have
// the same "warmness" if you run it many times.
func WarmColor() (c Color) {
for c = randomWarm() ; !c.IsValid() ; c = randomWarm() {}
return
}
func randomWarm() Color {
return Hcl(
rand.Float64() * 360.0,
0.1 + rand.Float64()*0.3,
0.2 + rand.Float64()*0.3)
}
// Creates a random bright, "pimpy" color through a restricted HSV space.
func FastHappyColor() Color {
return Hsv(
rand.Float64() * 360.0,
0.7 + rand.Float64()*0.3,
0.6 + rand.Float64()*0.3)
}
// Creates a random bright, "pimpy" color through restricted HCL space.
// This is slower than FastHappyColor but will likely give you colors which
// have the same "brightness" if you run it many times.
func HappyColor() (c Color) {
for c = randomPimp() ; !c.IsValid() ; c = randomPimp() {}
return
}
func randomPimp() Color {
return Hcl(
rand.Float64() * 360.0,
0.5 + rand.Float64()*0.3,
0.5 + rand.Float64()*0.3)
}
|
