contra-renderer/external/libfigure/move.js

//       __  __  _____     _______
//      |  \/  |/ _ \ \   / / ____|
//      | |\/| | | | \ \ / /|  _|
//      | |  | | |_| |\ V / | |___
//      |_|  |_|\___/  \_/  |_____|
//
//
// Properties of moves (strings).
// Few dependencies to the rest of the system.

import { deAliasMove  } from "./define-figure.js";

var moveCaresAboutRotationsHash = {
  "do si do": true,
  allemande: true,
  gyre: true,
  "allemande orbit": true,
  "star promenade": true,
  "mad robin": true,
}
// it now seems to me that this should be defined by defineFigure -dm 03-07-2017
export function moveCaresAboutRotations(move) {
  return moveCaresAboutRotationsHash[deAliasMove(move)]
}

var moveCaresAboutPlacesHash = {
  circle: true,
  star: true,
  "facing star": true,
  "square through": true,
  "box circulate": true,
}
// it now seems to me that this should be defined by defineFigure -dm 03-07-2017
export function moveCaresAboutPlaces(move) {
  return moveCaresAboutPlacesHash[deAliasMove(move)]
}

var degrees2rotations = {
  90: "¼",
  180: "½",
  270: "¾",
  360: "once",
  450: "1¼",
  540: "1½",
  630: "1¾",
  720: "twice",
  810: "2¼",
  900: "2½",
  "*": "*",
}

var degrees2places = {
  90: "1 place",
  180: "2 places",
  270: "3 places",
  360: "4 places",
  450: "5 places",
  540: "6 places",
  630: "7 places",
  720: "8 places",
  810: "9 places",
  900: "10 places",
  "*": "* places",
}

export const degreesToWords = function(degrees, optional_move) {
  if (optional_move) {
    if (moveCaresAboutRotations(optional_move) && degrees2rotations[degrees]) {
      return degrees2rotations[degrees]
    } else if (moveCaresAboutPlaces(optional_move) && degrees2places[degrees]) {
      return degrees2places[degrees]
    }
  }
  return degrees.toString() + " degrees"
}

export function degreesToRotations(degrees) {
  if (degrees) {
    return degrees2rotations[degrees] || degrees.toString() + " degrees"
  } else {
    return "?"
  }
}

export function degreesToPlaces(degrees) {
  if (degrees) {
    return degrees2places[degrees] || degrees.toString() + " degrees"
  } else {
    return "? places"
  }
}

var anglesForMoveArr = [90, 180, 270, 360, 450, 540, 630, 720, 810, 900]

export const anglesForMove = function(move) {
  if (move === "square through") {
    return [180, 270, 360]
  } else if (move === "box circulate") {
    return [90, 180, 270, 360]
  } else {
    return anglesForMoveArr
  }
}