react-native-gradients/src/utils/getAnglePercentageObject.ts

A simple gradient library for React Native.

import { getPercentageFromAngle } from './getPercentageFromAngle';

export const getAnglePercentageObject = (angle: number): {x1: number; x2: number; y1: number; y2: number} => {
  let realAngle = angle;
  let angleObj = {
    x1: 0,
    x2: 0,
    y1: 0,
    y2: 0,
  };

  if (realAngle <= 45) {
    realAngle += 360;
  }

  if (realAngle > 45 && realAngle <= 135) {
    angleObj = {
      x1: getPercentageFromAngle(realAngle, 45),
      x2: getPercentageFromAngle(realAngle, 45, true),
      y1: 100,
      y2: 0,
    };
  } else if (realAngle > 135 && realAngle <= 225) {
    angleObj = {
      x1: 100,
      x2: 0,
      y1: getPercentageFromAngle(realAngle, 135, true),
      y2: getPercentageFromAngle(realAngle, 135),
    };
  } else if (realAngle > 225 && realAngle <= 315) {
    angleObj = {
      x1: getPercentageFromAngle(realAngle, 225, true),
      x2: getPercentageFromAngle(realAngle, 225),
      y1: 0,
      y2: 100,
    };
  } else if (realAngle > 315) {
    angleObj = {
      x1: 0,
      x2: 100,
      y1: getPercentageFromAngle(realAngle, 315),
      y2: getPercentageFromAngle(realAngle, 315, true),
    };
  }

  return angleObj;
};