pixi.js/lib/scene/graphics/shared/buildCommands/buildPixelLine.js

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'use strict';

var _const = require('../const.js');

"use strict";
function buildPixelLine(points, closed, vertices, indices) {
  const eps = _const.closePointEps;
  if (points.length === 0) {
    return;
  }
  const fx = points[0];
  const fy = points[1];
  const lx = points[points.length - 2];
  const ly = points[points.length - 1];
  const closePath = closed || Math.abs(fx - lx) < eps && Math.abs(fy - ly) < eps;
  const verts = vertices;
  const length = points.length / 2;
  const indexStart = verts.length / 2;
  for (let i = 0; i < length; i++) {
    verts.push(points[i * 2]);
    verts.push(points[i * 2 + 1]);
  }
  for (let i = 0; i < length - 1; i++) {
    indices.push(indexStart + i, indexStart + i + 1);
  }
  if (closePath) {
    indices.push(indexStart + length - 1, indexStart);
  }
}

exports.buildPixelLine = buildPixelLine;
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