Added kidney_labe and Cyste_kid

sde/js/utils.js

@@ -0,0 +1,13 @@
+"use strict";
+
+var $=function(id){return document.getElementById(id)};
+
+function dist(a,b){return Math.sqrt((a.x-b.x)**2+(a.y-b.y)**2)}
+function clamp(v,a,b){return Math.max(a,Math.min(b,v))}
+function lerp(a,b,t){return a+(b-a)*t}
+function rng(a,b){return Math.random()*(b-a)+a}
+function lerpCol(a,b,t){
+  var pa=[parseInt(a.slice(1,3),16),parseInt(a.slice(3,5),16),parseInt(a.slice(5,7),16)];
+  var pb=[parseInt(b.slice(1,3),16),parseInt(b.slice(3,5),16),parseInt(b.slice(5,7),16)];
+  return "rgb("+Math.round(lerp(pa[0],pb[0],t))+","+Math.round(lerp(pa[1],pb[1],t))+","+Math.round(lerp(pa[2],pb[2],t))+")";
+}