misfit Posted March 11, 2017 Report Share Posted March 11, 2017 Hi, I have been going through a tutorial on recreating FruitNinja (unimportant maybe). I am a beginner in JS with experiance in Java. I need some help or reference where to get it - I have 2 states like this: var FruitNinja = FruitNinja || {}; FruitNinja.JSONLevelState = function () { "use strict"; Phaser.State.call(this); }; FruitNinja.JSONLevelState.prototype = Object.create(Phaser.State.prototype); FruitNinja.JSONLevelState.prototype.constructor = FruitNinja.JSONLevelState; (...) FruitNinja.JSONLevelState.prototype.create = function () { this.create_prefab(prefab_name, this.level_data.prefabs[prefab_name]); }; FruitNinja.JSONLevelState.prototype.create_prefab = function (prefab_name, prefab_data) { if (this.prefab_classes.hasOwnProperty(prefab_data.type)) { do stuff... }; (...) and var FruitNinja = FruitNinja || {}; FruitNinja.LevelState = function () { "use strict"; FruitNinja.JSONLevelState.call(this); this.prefab_classes = { "background": FruitNinja.Prefab.prototype.constructor, (...) }; }; FruitNinja.LevelState.prototype = Object.create(FruitNinja.JSONLevelState.prototype); FruitNinja.LevelState.prototype.constructor = FruitNinja.LevelState; FruitNinja.LevelState.prototype.create = function () { "use strict"; FruitNinja.JSONLevelState.prototype.create.call(this); (...) } Somehow JSONLevelState can access LevelState this.prefab_classe object. I don't understand how. Can I somehow print it to chrome console? Or can someone explain it or point me to some external reference ? I have watched couple of videos on youtube on inheritance in JS but I still don't get it. Please help, Ok Solved. "FruitNinja.JSONLevelState.call(this);" allows dunc from JSONLevelState be called in LevelState object (having access to its variables. Watch https://youtu.be/PMfcsYzj-9M for a complete explanation. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.