lr-core/line-rider-engine/LineRiderEngine.js

Line Rider core library

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _immo = require('../immo');

var _lineEngine = require('../line-engine');

var _lineEngine2 = _interopRequireDefault(_lineEngine);

var _lineSpace = require('../line-space');

var _lineSpace2 = _interopRequireDefault(_lineSpace);

var _constants = require('./constants.js');

var _Rider = require('./Rider.js');

var _Rider2 = _interopRequireDefault(_Rider);

var _grids = require('./grids');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// @setupImmo
class LineRiderEngine extends _lineEngine2.default {
  __props__() {
    return {
      iterations: _constants.ITERATE,
      stepOptions: {
        gravity: _constants.GRAVITY
      },
      rider: this.makeRider()
    };
  }
  __state__() {
    return {
      start: {
        position: _constants.DEFAULT_START_POSITION,
        velocity: _constants.DEFAULT_START_VELOCITY
      }
    };
  }
  __computed__() {
    return {
      lineSpace: new _lineSpace2.default(({ p1: { x: x1, y: y1 }, p2: { x: x2, y: y2 } }) => [x1, y1, x2, y2])
    };
  }

  /* public */
  // getLastFrameIndex ()
  // getLine (id)
  // getMaxLineID ()
  // addLine (line)
  // removeLine (line)
  constructor() {
    super();
    return this.setStart().setConstraints(this.rider.constraints);
  }

  setStart(position = _constants.DEFAULT_START_POSITION, velocity = _constants.DEFAULT_START_VELOCITY) {
    return this.updateState({
      start: {
        position,
        velocity
      }
    }).setInitialStates(this.rider.makeStateArray(position, velocity));
  }

  getRider(frameIndex) {
    return this.rider.getBody(this.getStateMapAtFrame(frameIndex));
  }

  toJSON() {
    // until List.toJS() gets implemented
    this.linesList.__getBuffer();
    return {
      start: this.start,
      lines: this.linesList.buffer.map(line => line.toJSON())
    };
  }

  /* private */
  _addLine(line) {
    super._addLine(line);
    this.lineSpace.addLine(line);
  }
  _removeLine(line) {
    super._removeLine(line);
    this.lineSpace.removeLine(line);
  }

  makeRider() {
    return new _Rider2.default();
  }

  makeGrid(...args) {
    return new _grids.ClassicGrid(...args);
  }

  selectLinesInBox(x0, y0, x1, y1) {
    this.updateComputed();
    return this.lineSpace.selectLinesInBox(x0, y0, x1, y1);
  }
  selectLinesInRadius(c, r) {
    this.updateComputed();
    return this.lineSpace.selectLinesInRadius(c, r);
  }
  selectClosestLineInRadius(c, r) {
    this.updateComputed();
    return this.lineSpace.selectClosestLineInRadius(c, r);
  }
  getBoundingBox() {
    this.updateComputed();
    return this.lineSpace.getBoundingBox();
  }
}
exports.default = LineRiderEngine;
(0, _immo.setupImmo)(LineRiderEngine);