summaryrefslogtreecommitdiff
path: root/app/client/util
diff options
context:
space:
mode:
Diffstat (limited to 'app/client/util')
-rw-r--r--app/client/util/format.js132
-rw-r--r--app/client/util/index.js146
-rw-r--r--app/client/util/math.js52
3 files changed, 189 insertions, 141 deletions
diff --git a/app/client/util/format.js b/app/client/util/format.js
new file mode 100644
index 0000000..e436a3e
--- /dev/null
+++ b/app/client/util/format.js
@@ -0,0 +1,132 @@
+export function timeInSeconds(n){
+ return (n / 10).toFixed(1) + ' s.'
+}
+export function gerund(s){
+ return s.replace(/e?$/, 'ing')
+}
+export function commatize (n, radix) {
+ radix = radix || 1024
+ var nums = [], i, counter = 0, r = Math.floor
+ if (n > radix) {
+ n /= radix
+ nums.unshift(r((n * 10) % 10))
+ nums.unshift(".")
+ }
+ do {
+ i = n % 10
+ n = r(n / 10)
+ if (n && ! (++counter % 3))
+ { i = ' ' + r(i) }
+ nums.unshift(r(i))
+ }
+ while (n)
+ return nums.join("")
+}
+export function carbon_date (date, no_bold) {
+ var span = (+new Date() - new Date(date)) / 1000, color
+ if (! no_bold && span < 86400) // modified today
+ { color = "new" }
+ else if (span < 604800) // modifed this week
+ { color = "recent" }
+ else if (span < 1209600) // modifed 2 weeks ago
+ { color = "med" }
+ else if (span < 3024000) // modifed 5 weeks ago
+ { color = "old" }
+ else if (span < 12315200) // modifed 6 months ago
+ { color = "older" }
+ else
+ { color = "quiet" }
+ return color
+}
+export function hush_views (n, bias, no_bold) {
+ var txt = commatize(n, 1000)
+ bias = bias || 1
+ n = n || 0
+ if (n < 30) { return["quiet", n + " v."] }
+ if (n < 200) { return ["quiet", txt + " v."] }
+ else if (n < 500) { return ["quiet", txt + " v."] }
+ else if (n < 1000) { return ["old", txt + " v."] }
+ else if (n < 5000) { return ["med", txt + " kv."] }
+ else if (no_bold || n < 10000) { return ["recent", txt + " kv."] }
+ else { return ["new", txt + " kv."] }
+}
+export function hush_threads (n, bias, no_bold) {
+ var txt = commatize(n, 1000)
+ bias = bias || 1
+ n = n || 0
+ if (n < 10) { return["quiet", n + " t."] }
+ else if (n < 25) { return ["old", txt + " t."] }
+ else if (n < 50) { return ["med", txt + " t."] }
+ else if (no_bold || n < 100) { return ["recent", txt + " t."] }
+ else { return ["new", txt + " t."] }
+}
+export function hush_size (n, bias, no_bold) {
+ var txt = commatize(Math.round(n / 1024))
+ bias = 1 || bias
+ n = n || 0
+ if (! n) { return ['', ''] }
+ if (n < 1000) {
+ return ["quiet", n + " b."]
+ }
+ if (n < 1000000) {
+ return ["quiet", txt + " kb."]
+ }
+ else if (n < (20000000/bias)) {
+ return ["quiet", txt + " mb."]
+ }
+ else if (n < (50000000/bias)) {
+ return ["old", txt + " mb."]
+ }
+ else if (n < (80000000/bias)) {
+ return ["med", txt + " mb."]
+ }
+ else if (no_bold || n < (170000000/bias)) {
+ return ["recent", txt + " mb."]
+ }
+ else {
+ return ["new", txt + " mb."]
+ }
+}
+export function hush_null (n, unit, no_bold) {
+ var s = unit ? n + " " + unit + "." : n
+ if (n < 3) {
+ return ["quiet", s]
+ }
+ else if (n < 6) {
+ return ["older", s]
+ }
+ else if (n < 10) {
+ return ["old", s]
+ }
+ else if (n < 16) {
+ return ["med", s]
+ }
+ else if (no_bold || n < 21) {
+ return ["recent", s]
+ }
+ else {
+ return ["new", s]
+ }
+}
+export function get_age (t) {
+ var age = Math.abs(+Date.now() - new Date(t))/1000
+ var r = Math.floor
+ var m
+ if (age < 5) { return "now" }
+ if (age < 60) { return r(age) + "s" }
+ age /= 60
+ if (age < 60) { return r(age) + "m" }
+ m = r(age % 60)
+ age /= 60
+ if (m > 0 && age < 2) { return r(age) + "h" + m + "m" }
+ if (age < 24) { return r(age) + "h" }
+ age /= 24
+ if (age < 7) { return r(age) + "d" }
+ age /= 7
+ if (age < 12) { return r(age) + "w" }
+ age /= 4
+ if (age < 12) { return r(age) + "m" }
+ age /= 12
+ return r(age) + "y"
+}
+export function courtesy_s (n, s) { return n == 1 ? "" : (s || "s") }
diff --git a/app/client/util/index.js b/app/client/util/index.js
index c5eb8dd..a811dcf 100644
--- a/app/client/util/index.js
+++ b/app/client/util/index.js
@@ -1,7 +1,11 @@
import * as sort from './sort'
+import * as format from './format'
+import * as maths from './math'
export {
- sort
+ sort,
+ ...maths,
+ ...format,
}
export const is_iphone = !!((navigator.userAgent.match(/iPhone/i)) || (navigator.userAgent.match(/iPod/i)))
@@ -16,13 +20,6 @@ htmlClassList.remove('loading')
// window.debug = false
-export function clamp(n,a,b) { return n<a?a:n<b?n:b }
-export function norm(n,a,b) { return (n-a) / (b-a) }
-export function lerp(n,a,b) { return (b-a)*n+a }
-export function mix(n,a,b) { return a*(1-n)+b*n }
-export function randint(n) { return Math.floor(Math.random()*n) }
-export function randrange(a,b){ return Math.random() * (b-a) + a }
-
document.body.style.backgroundImage = 'linear-gradient(' + (randint(40)+40) + 'deg, #fde, #ffe)'
export const allProgress = (promises, progress_cb) => {
@@ -37,136 +34,3 @@ export const allProgress = (promises, progress_cb) => {
})
return Promise.all(promises)
}
-
-export function timeInSeconds(n){
- return (n / 10).toFixed(1) + ' s.'
-}
-export function gerund(s){
- return s.replace(/e?$/, 'ing')
-}
-export function commatize (n, radix) {
- radix = radix || 1024
- var nums = [], i, counter = 0, r = Math.floor
- if (n > radix) {
- n /= radix
- nums.unshift(r((n * 10) % 10))
- nums.unshift(".")
- }
- do {
- i = n % 10
- n = r(n / 10)
- if (n && ! (++counter % 3))
- { i = ' ' + r(i) }
- nums.unshift(r(i))
- }
- while (n)
- return nums.join("")
-}
-export function carbon_date (date, no_bold) {
- var span = (+new Date() - new Date(date)) / 1000, color
- if (! no_bold && span < 86400) // modified today
- { color = "new" }
- else if (span < 604800) // modifed this week
- { color = "recent" }
- else if (span < 1209600) // modifed 2 weeks ago
- { color = "med" }
- else if (span < 3024000) // modifed 5 weeks ago
- { color = "old" }
- else if (span < 12315200) // modifed 6 months ago
- { color = "older" }
- else
- { color = "quiet" }
- return color
-}
-export function hush_views (n, bias, no_bold) {
- var txt = commatize(n, 1000)
- bias = bias || 1
- n = n || 0
- if (n < 30) { return["quiet", n + " v."] }
- if (n < 200) { return ["quiet", txt + " v."] }
- else if (n < 500) { return ["quiet", txt + " v."] }
- else if (n < 1000) { return ["old", txt + " v."] }
- else if (n < 5000) { return ["med", txt + " kv."] }
- else if (no_bold || n < 10000) { return ["recent", txt + " kv."] }
- else { return ["new", txt + " kv."] }
-}
-export function hush_threads (n, bias, no_bold) {
- var txt = commatize(n, 1000)
- bias = bias || 1
- n = n || 0
- if (n < 10) { return["quiet", n + " t."] }
- else if (n < 25) { return ["old", txt + " t."] }
- else if (n < 50) { return ["med", txt + " t."] }
- else if (no_bold || n < 100) { return ["recent", txt + " t."] }
- else { return ["new", txt + " t."] }
-}
-export function hush_size (n, bias, no_bold) {
- var txt = commatize(Math.round(n / 1024))
- bias = 1 || bias
- n = n || 0
- if (! n) { return ['', ''] }
- if (n < 1000) {
- return ["quiet", n + " b."]
- }
- if (n < 1000000) {
- return ["quiet", txt + " kb."]
- }
- else if (n < (20000000/bias)) {
- return ["quiet", txt + " mb."]
- }
- else if (n < (50000000/bias)) {
- return ["old", txt + " mb."]
- }
- else if (n < (80000000/bias)) {
- return ["med", txt + " mb."]
- }
- else if (no_bold || n < (170000000/bias)) {
- return ["recent", txt + " mb."]
- }
- else {
- return ["new", txt + " mb."]
- }
-}
-export function hush_null (n, unit, no_bold) {
- var s = unit ? n + " " + unit + "." : n
- if (n < 3) {
- return ["quiet", s]
- }
- else if (n < 6) {
- return ["older", s]
- }
- else if (n < 10) {
- return ["old", s]
- }
- else if (n < 16) {
- return ["med", s]
- }
- else if (no_bold || n < 21) {
- return ["recent", s]
- }
- else {
- return ["new", s]
- }
-}
-export function get_age (t) {
- var age = Math.abs(+Date.now() - new Date(t))/1000
- var r = Math.floor
- var m
- if (age < 5) { return "now" }
- if (age < 60) { return r(age) + "s" }
- age /= 60
- if (age < 60) { return r(age) + "m" }
- m = r(age % 60)
- age /= 60
- if (m > 0 && age < 2) { return r(age) + "h" + m + "m" }
- if (age < 24) { return r(age) + "h" }
- age /= 24
- if (age < 7) { return r(age) + "d" }
- age /= 7
- if (age < 12) { return r(age) + "w" }
- age /= 4
- if (age < 12) { return r(age) + "m" }
- age /= 12
- return r(age) + "y"
-}
-export function courtesy_s (n, s) { return n == 1 ? "" : (s || "s") }
diff --git a/app/client/util/math.js b/app/client/util/math.js
new file mode 100644
index 0000000..253bacd
--- /dev/null
+++ b/app/client/util/math.js
@@ -0,0 +1,52 @@
+export function mod(n,m){ return n-(m * Math.floor(n/m)) }
+export function clamp(n,a,b) { return n<a?a:n<b?n:b }
+export function norm(n,a,b) { return (n-a) / (b-a) }
+export function lerp(n,a,b) { return (b-a)*n+a }
+export function mix(n,a,b) { return a*(1-n)+b*n }
+export function randint(n) { return Math.floor(Math.random()*n) }
+export function randrange(a,b){ return Math.random() * (b-a) + a }
+export function randsign(){ return Math.random() >= 0.5 ? -1 : 1 }
+export function choice (a){ return a[ Math.floor(Math.random() * a.length) ] }
+export function lerp(n,a,b){ return (b-a)*n+a }
+export function angle(x0,y0,x1,y1){ return Math.atan2(y1-y0,x1-x0) }
+export function dist(x0,y0,x1,y1){ return Math.sqrt(Math.pow(x1-x0,2)+Math.pow(y1-y0,2)) }
+export function xor(a,b){ a=!!a; b=!!b; return (a||b) && !(a&&b) }
+export function quantize(a,b){ return Math.floor(a/b)*b }
+export function shuffle(a){
+ for (var i = a.length; i > 0; i--){
+ var r = randint(i)
+ var swap = a[i-1]
+ a[i-1] = a[r]
+ a[r] = swap
+ }
+ return a
+}
+// returns a gaussian random function with the given mean and stdev.
+export function gaussian(mean, stdev) {
+ let y2;
+ let use_last = false;
+ return () => {
+ let y1;
+ if (use_last) {
+ y1 = y2;
+ use_last = false;
+ }
+ else {
+ let x1, x2, w;
+ do {
+ x1 = 2.0 * Math.random() - 1.0;
+ x2 = 2.0 * Math.random() - 1.0;
+ w = x1 * x1 + x2 * x2;
+ } while( w >= 1.0);
+ w = Math.sqrt((-2.0 * Math.log(w))/w);
+ y1 = x1 * w;
+ y2 = x2 * w;
+ use_last = true;
+ }
+
+ let retval = mean + stdev * y1;
+ if (retval > 0)
+ return retval;
+ return -retval;
+ }
+}
generated by cgit v1.2.3-70-g09d2 (git 2.51.0) at 2025-12-11 00:50:35 +0000