Update animation

[rbdr/r.bdr.sh] / js / animation.js

diff --git a/js/animation.js b/js/animation.js
index 71d5aa33843608bf192e5cf21693ec2a9ab12ce8..ee43c544bf351bf06362ba47f895490e4ef8e2a6 100644 (file)
--- a/js/animation.js
+++ b/js/animation.js
@@ -1,5 +1,7 @@
 (function () {
 
 (function () {
 

+  if (window.matchMedia(`(prefers-reduced-motion: reduce)`).matches === true) return;
+

   var K = document.querySelector('canvas'),
     { random: R, PI, cos: C, sin: S, atan2: A } = Math,
     id = p => p,
   var K = document.querySelector('canvas'),
     { random: R, PI, cos: C, sin: S, atan2: A } = Math,
     id = p => p,


@@ -15,21 +17,22 @@
       a: R() * 2 * PI, c: r(100)
     })),
     H = [sqr, crc, hrt, chs, lch], P = [id, spn(5), spn(15)],
       a: R() * 2 * PI, c: r(100)
     })),
     H = [sqr, crc, hrt, chs, lch], P = [id, spn(5), spn(15)],

-    draw = H[r(H.length)], pos = P[r(P.length)]
+    draw = H[r(H.length)], pos = P[r(P.length)],
+    Z = 1

 
   function r(x) {
     return ~~(R() * x)
   }
 
   function sqr(i) {
 
   function r(x) {
     return ~~(R() * x)
   }
 
   function sqr(i) {

-    var {x, y} = pos(i)
-    X.fillRect(x, y, z, z)
+    var p = pos(i)
+    X.fillRect(p.x, p.y, z, z)

   }
 
   function crc(i) {
   }
 
   function crc(i) {

-    var {x, y} = pos(i)
+    var p = pos(i)

     B()
     B()

-    X.arc(x, y, z / 2, 0, 2 * PI)
+    X.arc(p.x, p.y, z / 2, 0, 2 * PI)

     F()
   }
 
     F()
   }
 


@@ -83,8 +86,10 @@
     i.c = (i.c + 2) % 101
   }
 
     i.c = (i.c + 2) % 101
   }
 

+  canvas.addEventListener('click', () => {Z ? Z=0:(Z=1;frm())})
+

   function frm(t) {
   function frm(t) {

-    requestAnimationFrame(frm)
+    if (Z) requestAnimationFrame(frm)

 
     var dt = t - l
 
 
     var dt = t - l