@phaserjs/phaser/renderer/webgl1/draw/FillArc.js

Phaser 4

import { BatchTriangle } from "./BatchTriangle";
import { Circle } from "../../../geom/circle/Circle";
import { GetCirclePointsBetween } from "../../../geom/circle/GetCirclePointsBetween";
import { GetVertexBufferEntry } from "../renderpass/GetVertexBufferEntry";
import { SetWhiteTexture } from "../renderpass/SetWhiteTexture";
import { Triangulate } from "../../../geom/PolyPartition";
let circle;
export function FillArc(renderPass, x, y, radius, startAngle, endAngle, steps, anticlockwise, includeCenter, red, green, blue, alpha) {
  if (!circle) {
    circle = new Circle();
  }
  circle.set(x, y, radius);
  const points = GetCirclePointsBetween(circle, startAngle, endAngle, steps, anticlockwise, includeCenter);
  const tris = Triangulate(points);
  if (!tris.length) {
    return;
  }
  const { F32, offset } = GetVertexBufferEntry(renderPass, tris.length);
  const textureIndex = SetWhiteTexture();
  let idx = offset;
  tris.forEach((tri) => {
    idx = BatchTriangle(F32, idx, textureIndex, tri[0].x, tri[0].y, tri[1].x, tri[1].y, tri[2].x, tri[2].y, red, green, blue, alpha);
  });
}