util.js

const TWO_PI=2*Math.PI,HALF_PI=Math.PI/2,QUARTER_PI=Math.PI/4,EIGHTH_PI=Math.PI/8,SIXTEENTH_PI=Math.PI/16,EIGHTEENTH_PI=Math.PI/18,__num_rand_ints=8192,__rand_ints=new Uint8Array(8192);for(var __next_rand=0,i=0;i<8192;i++)__rand_ints[i]=Math.floor(100*Math.random());function random(){const t=__rand_ints[__next_rand];return 8192===++__next_rand&&(__next_rand=0),t}function executeAndTime(t){const n=performance.now();t();return performance.now()-n}function displayPerformance(t,n){const r=executeAndTime(t);console.log(n,": ",r,"ms")}function docOffsetLeft(t){var n=0;do{isNaN(t.offsetLeft)||(n+=t.offsetLeft)}while(t=t.offsetParent);return n}function docOffsetTop(t){var n=0;do{isNaN(t.offsetTop)||(n+=t.offsetTop)}while(t=t.offsetParent);return n}function distance(t,n,r,e){const o=t-r,i=n-e;return Math.sqrt(o*o+i*i)}function fastItoXYBorderingAdjacent(t,n,r,e){const o=r+width;if(o===e)return[t,n+1];if(o-1===e)return[t-1,n+1];if(o+1===e)return[t+1,n+1];if(r-1===e)return[t-1,n];if(r+1===e)return[t+1,n];const i=r-width;if(i===e)return[t,n-1];if(i-1===e)return[t-1,n-1];if(i+1===e)return[t+1,n-1];throw"Not passed a bordering coordinate"}function fastItoXYBordering(t,n,r,e){if(r+width===e)return[t,n+1];if(r-1===e)return[t-1,n];if(r+1===e)return[t+1,n];if(r-width===e)return[t,n-1];throw"Not passed a bordering coordinate"}