phaser3-rex-plugins/dist/rexinterceptionplugin.js

Plugins of phaser3

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
  typeof define === 'function' && define.amd ? define(factory) :
  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.rexinterceptionplugin = factory());
})(this, (function () { 'use strict';

  function _typeof(obj) {
    "@babel/helpers - typeof";

    return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) {
      return typeof obj;
    } : function (obj) {
      return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    }, _typeof(obj);
  }
  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }
  function _defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor);
    }
  }
  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    Object.defineProperty(Constructor, "prototype", {
      writable: false
    });
    return Constructor;
  }
  function _inherits(subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
      throw new TypeError("Super expression must either be null or a function");
    }
    subClass.prototype = Object.create(superClass && superClass.prototype, {
      constructor: {
        value: subClass,
        writable: true,
        configurable: true
      }
    });
    Object.defineProperty(subClass, "prototype", {
      writable: false
    });
    if (superClass) _setPrototypeOf(subClass, superClass);
  }
  function _getPrototypeOf(o) {
    _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) {
      return o.__proto__ || Object.getPrototypeOf(o);
    };
    return _getPrototypeOf(o);
  }
  function _setPrototypeOf(o, p) {
    _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) {
      o.__proto__ = p;
      return o;
    };
    return _setPrototypeOf(o, p);
  }
  function _isNativeReflectConstruct() {
    if (typeof Reflect === "undefined" || !Reflect.construct) return false;
    if (Reflect.construct.sham) return false;
    if (typeof Proxy === "function") return true;
    try {
      Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
      return true;
    } catch (e) {
      return false;
    }
  }
  function _assertThisInitialized(self) {
    if (self === void 0) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }
    return self;
  }
  function _possibleConstructorReturn(self, call) {
    if (call && (typeof call === "object" || typeof call === "function")) {
      return call;
    } else if (call !== void 0) {
      throw new TypeError("Derived constructors may only return object or undefined");
    }
    return _assertThisInitialized(self);
  }
  function _createSuper(Derived) {
    var hasNativeReflectConstruct = _isNativeReflectConstruct();
    return function _createSuperInternal() {
      var Super = _getPrototypeOf(Derived),
        result;
      if (hasNativeReflectConstruct) {
        var NewTarget = _getPrototypeOf(this).constructor;
        result = Reflect.construct(Super, arguments, NewTarget);
      } else {
        result = Super.apply(this, arguments);
      }
      return _possibleConstructorReturn(this, result);
    };
  }
  function _superPropBase(object, property) {
    while (!Object.prototype.hasOwnProperty.call(object, property)) {
      object = _getPrototypeOf(object);
      if (object === null) break;
    }
    return object;
  }
  function _get() {
    if (typeof Reflect !== "undefined" && Reflect.get) {
      _get = Reflect.get.bind();
    } else {
      _get = function _get(target, property, receiver) {
        var base = _superPropBase(target, property);
        if (!base) return;
        var desc = Object.getOwnPropertyDescriptor(base, property);
        if (desc.get) {
          return desc.get.call(arguments.length < 3 ? target : receiver);
        }
        return desc.value;
      };
    }
    return _get.apply(this, arguments);
  }
  function _toPrimitive(input, hint) {
    if (typeof input !== "object" || input === null) return input;
    var prim = input[Symbol.toPrimitive];
    if (prim !== undefined) {
      var res = prim.call(input, hint || "default");
      if (typeof res !== "object") return res;
      throw new TypeError("@@toPrimitive must return a primitive value.");
    }
    return (hint === "string" ? String : Number)(input);
  }
  function _toPropertyKey(arg) {
    var key = _toPrimitive(arg, "string");
    return typeof key === "symbol" ? key : String(key);
  }

  var EventEmitterMethods = {
    setEventEmitter: function setEventEmitter(eventEmitter, EventEmitterClass) {
      if (EventEmitterClass === undefined) {
        EventEmitterClass = Phaser.Events.EventEmitter; // Use built-in EventEmitter class by default
      }

      this._privateEE = eventEmitter === true || eventEmitter === undefined;
      this._eventEmitter = this._privateEE ? new EventEmitterClass() : eventEmitter;
      return this;
    },
    destroyEventEmitter: function destroyEventEmitter() {
      if (this._eventEmitter && this._privateEE) {
        this._eventEmitter.shutdown();
      }
      return this;
    },
    getEventEmitter: function getEventEmitter() {
      return this._eventEmitter;
    },
    on: function on() {
      if (this._eventEmitter) {
        this._eventEmitter.on.apply(this._eventEmitter, arguments);
      }
      return this;
    },
    once: function once() {
      if (this._eventEmitter) {
        this._eventEmitter.once.apply(this._eventEmitter, arguments);
      }
      return this;
    },
    off: function off() {
      if (this._eventEmitter) {
        this._eventEmitter.off.apply(this._eventEmitter, arguments);
      }
      return this;
    },
    emit: function emit(event) {
      if (this._eventEmitter && event) {
        this._eventEmitter.emit.apply(this._eventEmitter, arguments);
      }
      return this;
    },
    addListener: function addListener() {
      if (this._eventEmitter) {
        this._eventEmitter.addListener.apply(this._eventEmitter, arguments);
      }
      return this;
    },
    removeListener: function removeListener() {
      if (this._eventEmitter) {
        this._eventEmitter.removeListener.apply(this._eventEmitter, arguments);
      }
      return this;
    },
    removeAllListeners: function removeAllListeners() {
      if (this._eventEmitter) {
        this._eventEmitter.removeAllListeners.apply(this._eventEmitter, arguments);
      }
      return this;
    },
    listenerCount: function listenerCount() {
      if (this._eventEmitter) {
        return this._eventEmitter.listenerCount.apply(this._eventEmitter, arguments);
      }
      return 0;
    },
    listeners: function listeners() {
      if (this._eventEmitter) {
        return this._eventEmitter.listeners.apply(this._eventEmitter, arguments);
      }
      return [];
    },
    eventNames: function eventNames() {
      if (this._eventEmitter) {
        return this._eventEmitter.eventNames.apply(this._eventEmitter, arguments);
      }
      return [];
    }
  };

  var SceneClass = Phaser.Scene;
  var IsSceneObject = function IsSceneObject(object) {
    return object instanceof SceneClass;
  };

  var GetSceneObject = function GetSceneObject(object) {
    if (object == null || _typeof(object) !== 'object') {
      return null;
    } else if (IsSceneObject(object)) {
      // object = scene
      return object;
    } else if (object.scene && IsSceneObject(object.scene)) {
      // object = game object
      return object.scene;
    } else if (object.parent && object.parent.scene && IsSceneObject(object.parent.scene)) {
      // parent = bob object
      return object.parent.scene;
    } else {
      return null;
    }
  };

  var GameClass = Phaser.Game;
  var IsGame = function IsGame(object) {
    return object instanceof GameClass;
  };

  var GetGame = function GetGame(object) {
    if (object == null || _typeof(object) !== 'object') {
      return null;
    } else if (IsGame(object)) {
      return object;
    } else if (IsGame(object.game)) {
      return object.game;
    } else if (IsSceneObject(object)) {
      // object = scene object
      return object.sys.game;
    } else if (IsSceneObject(object.scene)) {
      // object = game object
      return object.scene.sys.game;
    }
  };

  var GetValue$3 = Phaser.Utils.Objects.GetValue;
  var ComponentBase = /*#__PURE__*/function () {
    function ComponentBase(parent, config) {
      _classCallCheck(this, ComponentBase);
      this.setParent(parent); // gameObject, scene, or game

      this.isShutdown = false;

      // Event emitter, default is private event emitter
      this.setEventEmitter(GetValue$3(config, 'eventEmitter', true));

      // Register callback of parent destroy event, also see `shutdown` method
      if (this.parent) {
        if (this.parent === this.scene) {
          // parent is a scene
          this.scene.sys.events.once('shutdown', this.onEnvDestroy, this);
        } else if (this.parent === this.game) {
          // parent is game
          this.game.events.once('shutdown', this.onEnvDestroy, this);
        } else if (this.parent.once) {
          // parent is game object or something else
          this.parent.once('destroy', this.onParentDestroy, this);
        }

        // bob object does not have event emitter
      }
    }
    _createClass(ComponentBase, [{
      key: "shutdown",
      value: function shutdown(fromScene) {
        // Already shutdown
        if (this.isShutdown) {
          return;
        }

        // parent might not be shutdown yet
        if (this.parent) {
          if (this.parent === this.scene) {
            // parent is a scene
            this.scene.sys.events.off('shutdown', this.onEnvDestroy, this);
          } else if (this.parent === this.game) {
            // parent is game
            this.game.events.off('shutdown', this.onEnvDestroy, this);
          } else if (this.parent.once) {
            // parent is game object or something else
            this.parent.off('destroy', this.onParentDestroy, this);
          }

          // bob object does not have event emitter
        }

        this.destroyEventEmitter();
        this.parent = undefined;
        this.scene = undefined;
        this.game = undefined;
        this.isShutdown = true;
      }
    }, {
      key: "destroy",
      value: function destroy(fromScene) {
        this.shutdown(fromScene);
      }
    }, {
      key: "onEnvDestroy",
      value: function onEnvDestroy() {
        this.destroy(true);
      }
    }, {
      key: "onParentDestroy",
      value: function onParentDestroy(parent, fromScene) {
        this.destroy(fromScene);
      }
    }, {
      key: "setParent",
      value: function setParent(parent) {
        this.parent = parent; // gameObject, scene, or game

        this.scene = GetSceneObject(parent);
        this.game = GetGame(parent);
        return this;
      }
    }]);
    return ComponentBase;
  }();
  Object.assign(ComponentBase.prototype, EventEmitterMethods);

  var GetValue$2 = Phaser.Utils.Objects.GetValue;
  var TickTask = /*#__PURE__*/function (_ComponentBase) {
    _inherits(TickTask, _ComponentBase);
    var _super = _createSuper(TickTask);
    function TickTask(parent, config) {
      var _this;
      _classCallCheck(this, TickTask);
      _this = _super.call(this, parent, config);
      _this._isRunning = false;
      _this.isPaused = false;
      _this.tickingState = false;
      _this.setTickingMode(GetValue$2(config, 'tickingMode', 1));
      // boot() later
      return _this;
    }

    // override
    _createClass(TickTask, [{
      key: "boot",
      value: function boot() {
        if (this.tickingMode === 2 && !this.tickingState) {
          this.startTicking();
        }
      }

      // override
    }, {
      key: "shutdown",
      value: function shutdown(fromScene) {
        // Already shutdown
        if (this.isShutdown) {
          return;
        }
        this.stop();
        if (this.tickingState) {
          this.stopTicking();
        }
        _get(_getPrototypeOf(TickTask.prototype), "shutdown", this).call(this, fromScene);
      }
    }, {
      key: "setTickingMode",
      value: function setTickingMode(mode) {
        if (typeof mode === 'string') {
          mode = TICKINGMODE[mode];
        }
        this.tickingMode = mode;
      }

      // override
    }, {
      key: "startTicking",
      value: function startTicking() {
        this.tickingState = true;
      }

      // override
    }, {
      key: "stopTicking",
      value: function stopTicking() {
        this.tickingState = false;
      }
    }, {
      key: "isRunning",
      get: function get() {
        return this._isRunning;
      },
      set: function set(value) {
        if (this._isRunning === value) {
          return;
        }
        this._isRunning = value;
        if (this.tickingMode === 1 && value != this.tickingState) {
          if (value) {
            this.startTicking();
          } else {
            this.stopTicking();
          }
        }
      }
    }, {
      key: "start",
      value: function start() {
        this.isPaused = false;
        this.isRunning = true;
        return this;
      }
    }, {
      key: "pause",
      value: function pause() {
        // Only can ba paused in running state
        if (this.isRunning) {
          this.isPaused = true;
          this.isRunning = false;
        }
        return this;
      }
    }, {
      key: "resume",
      value: function resume() {
        // Only can ba resumed in paused state (paused from running state)
        if (this.isPaused) {
          this.isRunning = true;
        }
        return this;
      }
    }, {
      key: "stop",
      value: function stop() {
        this.isPaused = false;
        this.isRunning = false;
        return this;
      }
    }, {
      key: "complete",
      value: function complete() {
        this.isPaused = false;
        this.isRunning = false;
        this.emit('complete', this.parent, this);
      }
    }]);
    return TickTask;
  }(ComponentBase);
  var TICKINGMODE = {
    'no': 0,
    'lazy': 1,
    'always': 2
  };

  var GetValue$1 = Phaser.Utils.Objects.GetValue;
  var SceneUpdateTickTask = /*#__PURE__*/function (_TickTask) {
    _inherits(SceneUpdateTickTask, _TickTask);
    var _super = _createSuper(SceneUpdateTickTask);
    function SceneUpdateTickTask(parent, config) {
      var _this;
      _classCallCheck(this, SceneUpdateTickTask);
      _this = _super.call(this, parent, config);

      // scene update : update, preupdate, postupdate, prerender, render
      // game update : step, poststep, 

      // If this.scene is not available, use game's 'step' event
      var defaultEventName = _this.scene ? 'update' : 'step';
      _this.tickEventName = GetValue$1(config, 'tickEventName', defaultEventName);
      _this.isSceneTicker = !IsGameUpdateEvent(_this.tickEventName);
      return _this;
    }
    _createClass(SceneUpdateTickTask, [{
      key: "startTicking",
      value: function startTicking() {
        _get(_getPrototypeOf(SceneUpdateTickTask.prototype), "startTicking", this).call(this);
        if (this.isSceneTicker) {
          this.scene.sys.events.on(this.tickEventName, this.update, this);
        } else {
          this.game.events.on(this.tickEventName, this.update, this);
        }
      }
    }, {
      key: "stopTicking",
      value: function stopTicking() {
        _get(_getPrototypeOf(SceneUpdateTickTask.prototype), "stopTicking", this).call(this);
        if (this.isSceneTicker && this.scene) {
          // Scene might be destoryed
          this.scene.sys.events.off(this.tickEventName, this.update, this);
        } else if (this.game) {
          this.game.events.off(this.tickEventName, this.update, this);
        }
      }

      // update(time, delta) {
      //     
      // }
    }]);
    return SceneUpdateTickTask;
  }(TickTask);
  var IsGameUpdateEvent = function IsGameUpdateEvent(eventName) {
    return eventName === 'step' || eventName === 'poststep';
  };

  var Vector2$1 = Phaser.Math.Vector2;
  var SpeedMonitor = /*#__PURE__*/function () {
    function SpeedMonitor() {
      _classCallCheck(this, SpeedMonitor);
      this.position = new Vector2$1();
      this.velocity = new Vector2$1();
    }
    _createClass(SpeedMonitor, [{
      key: "init",
      value: function init(x, y) {
        this.velocity.reset();
        this.position.set(x, y);
        return this;
      }
    }, {
      key: "update",
      value: function update(x, y, delta) {
        // delta in sec
        this.velocity.set(x - this.position.x, y - this.position.y);
        if (this.velocity.x !== 0 || this.velocity.y !== 0) {
          this.velocity.setToPolar(this.velocity.angle(), this.velocity.length() / delta);
        }
        this.position.set(x, y);
        return this;
      }
    }]);
    return SpeedMonitor;
  }();

  var GetValue = Phaser.Utils.Objects.GetValue;
  var Vector2 = Phaser.Math.Vector2;
  var Distance = Phaser.Math.Distance.Between;
  var AngleBetweenPoint = Phaser.Math.Angle.BetweenPoints;
  var Interception = /*#__PURE__*/function (_TickTask) {
    _inherits(Interception, _TickTask);
    var _super = _createSuper(Interception);
    function Interception(gameObject, config) {
      var _this;
      _classCallCheck(this, Interception);
      _this = _super.call(this, gameObject, config);
      // this.parent = gameObject;

      _this._target = undefined;
      _this.mySpeedMonitor = new SpeedMonitor();
      _this.targetSpeedMonitor = new SpeedMonitor();
      _this.predictedPosition = new Vector2();
      _this.resetFromJSON(config);
      _this.boot();
      return _this;
    }
    _createClass(Interception, [{
      key: "resetFromJSON",
      value: function resetFromJSON(o) {
        this.isRunning = GetValue(o, 'isRunning', false);
        this.setEnable(GetValue(o, 'enable', true));
        this.setTarget(GetValue(o, 'target', undefined));
        return this;
      }
    }, {
      key: "toJSON",
      value: function toJSON() {
        return {
          isRunning: this.isRunning,
          duration: this.duration,
          tickingMode: this.tickingMode
        };
      }
    }, {
      key: "shutdown",
      value: function shutdown(fromScene) {
        // Already shutdown
        if (this.isShutdown) {
          return;
        }
        this.setTarget();
        _get(_getPrototypeOf(Interception.prototype), "shutdown", this).call(this, fromScene);
      }
    }, {
      key: "setEnable",
      value: function setEnable(e) {
        if (e == undefined) {
          e = true;
        }
        this.enable = e;
        return this;
      }
    }, {
      key: "target",
      get: function get() {
        return this._target;
      },
      set: function set(target) {
        if (target == null) {
          target = undefined;
        }
        if (this.target === target) ; else {
          // Remove previous target
          if (this.target) {
            this.target.off('destroy', this.onTargetDestroy, this);
          }

          // Add new target
          if (target) {
            target.once('destroy', this.onTargetDestroy, this);
          }
          this._target = target;
        }
        if (this.isRunning) {
          if (this.target === undefined) {
            _get(_getPrototypeOf(Interception.prototype), "stop", this).call(this);
          }
        } else {
          // !this.isRunning
          if (this.target !== undefined) {
            // Start speed monitor
            this.mySpeedMonitor.init(this.parent.x, this.parent.y);
            this.targetSpeedMonitor.init(this.target.x, this.target.y);
            _get(_getPrototypeOf(Interception.prototype), "start", this).call(this);
          }
        }
        return this;
      }
    }, {
      key: "setTarget",
      value: function setTarget(target) {
        this.target = target;
        return this;
      }
    }, {
      key: "onTargetDestroy",
      value: function onTargetDestroy(target, fromScene) {
        this.setTarget();
        return this;
      }
    }, {
      key: "update",
      value: function update(time, delta) {
        if (!this.isRunning) {
          return this;
        }
        if (this.target === undefined) {
          return this;
        } else if (!this.enable) {
          this.predictedPosition.copy(this.target);
          return this;
        }
        var gameObject = this.parent;
        delta /= 1000; // delta in sec
        this.mySpeedMonitor.update(gameObject.x, gameObject.y, delta);
        this.targetSpeedMonitor.update(this.target.x, this.target.y, delta);
        var relatedVelocityX = this.targetSpeedMonitor.velocity.x - this.mySpeedMonitor.velocity.x;
        var relatedVelocityY = this.targetSpeedMonitor.velocity.y - this.mySpeedMonitor.velocity.y;
        if (relatedVelocityX === 0 && relatedVelocityY === 0) {
          // Target and mine is moving parallelly
          this.predictedPosition.copy(this.target);
        } else {
          var relatedSpeed = Distance(0, 0, relatedVelocityX, relatedVelocityY);
          var distanceToTarget = Distance(this.target.x, this.target.y, gameObject.x, gameObject.y);
          var time = distanceToTarget / relatedSpeed;
          this.predictedPosition.set(this.target.x + this.targetSpeedMonitor.velocity.x * time, this.target.y + this.targetSpeedMonitor.velocity.y * time);
        }
        return this;
      }
    }, {
      key: "predictedAngle",
      get: function get() {
        return AngleBetweenPoint(this.parent, this.predictedPosition);
      }
    }]);
    return Interception;
  }(SceneUpdateTickTask);

  var InterceptionPlugin = /*#__PURE__*/function (_Phaser$Plugins$BaseP) {
    _inherits(InterceptionPlugin, _Phaser$Plugins$BaseP);
    var _super = _createSuper(InterceptionPlugin);
    function InterceptionPlugin(pluginManager) {
      _classCallCheck(this, InterceptionPlugin);
      return _super.call(this, pluginManager);
    }
    _createClass(InterceptionPlugin, [{
      key: "add",
      value: function add(gameObject, config) {
        return new Interception(gameObject, config);
      }
    }]);
    return InterceptionPlugin;
  }(Phaser.Plugins.BasePlugin);

  return InterceptionPlugin;

}));