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  • ActionScript 3 Cant see Movieclip

    - by user3697993
    When I play my game it does not show my _Player Movieclip, but it does collide with the ground which is very confusing. So I believe the movieclip is there but not showing the texture/Sprite. I think the problem is in "function Spawn" (First Function). public class PewdyBird extends MovieClip { //Player variables public var Up_Speed:int = 25; public var speed:Number = 0; public var _grav:Number = 0.5; public var isJump:Boolean = false; public var Score:int = 0; public var Player_Live:Boolean = true; public var _Player:Player = new Player(); //Other variables //Environment variables var Floor:int = 480; var Clock:Number = 0; var Clock_restart:Number = 0; var Clock_ON:Boolean = false; var Clock_max:int = 15; var Player_Stage:Boolean = true; private var _X:int; private var _Y:int; private var hit_ground:Boolean = false; private var width_BG:int = 479; //SPAWN function Spawn(e:Event){ _Player.x = 200; _Player.y = 200; stage.addChild(_Player); } //Keyboard Input private function KeyboardListener(e:KeyboardEvent){ if(e.keyCode == Keyboard.SPACE){ Clock = Clock_restart; Clock_ON = true; isJump = true; if(isJump){ _Player.gotoAndPlay("Fly"); speed = -Up_Speed; isJump = false; } } } //Mouse Input & Spawn Listener private function MouseListener(m:MouseEvent){ if(MouseEvent.CLICK){ Clock = Clock_restart; Clock_ON = true; isJump = true; if(isJump){ _Player.gotoAndPlay("Fly"); speed = -Up_Speed; isJump = false; } } } //Rotation Fly function Rot_Fly(){ if(Clock < Clock_max){ _Player.rotation = -15; }else if(Clock >= Clock_max){ if(_Player.rotation < 90){ _Player.rotation += 10; }else if(_Player.rotation >= 90){ _Player.rotation = 90; } } } //END //Update Function function enter_frame(e:Event):void{ Rot_Fly(); //Clock if(Clock_ON){ Clock++; }else if(Clock > Clock_max){ Clock = Clock_max; } //Fall Limits if(speed >= 20){ _Player.y += 20; return; _Player.gotoAndPlay("Fall"); } //Physics speed += _grav*3; _Player.y += speed; } //Hit Ground function Hit_Ground(e:Event){ if(_Player.hitTestObject(Ground1)){ _grav = 0; speed = 0; trace("HIT GROUND"); }else if(_Player.hitTestObject(Ground2)){ _grav = 0; speed = 0; trace("HIT GROUND"); }else if(_Player.hitTestObject(Ground1) == false){ _grav = 1; }else if(_Player.hitTestObject(Ground2) == false){ _grav = 1; } } //Background Slide (Left) private function Background_Move(e:Event):void{ Background1.x -= 1.5; Background2.x -= 1.5; Ground1.x -= 4; Ground2.x -= 4; if(Background1.x < -width_BG){ Background1.x = width_BG; } else if(Background2.x < -width_BG){ Background2.x = width_BG; } else if(Ground1.x < -width_BG){ Ground1.x = width_BG; } else if(Ground2.x < -width_BG){ Ground2.x = width_BG; } } } The eventListeners are in flash it self stage.addEventListener(Event.ENTER_FRAME, enter_frame); stage.addEventListener(Event.ENTER_FRAME, Hit_Ground); stage.addEventListener(KeyboardEvent.KEY_UP, KeyboardListener); stage.addEventListener(MouseEvent.CLICK, MouseListener); stage.addEventListener(Event.ENTER_FRAME, Background_Move); stage.addEventListener(Event.ADDED_TO_STAGE, Spawn);

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  • Right way to get the children

    - by Web Developer
    I have the below code and it works but what is the right way to get table onclick of add HTML <h4 class="titlebar"> Skills <small><a onclick="return false;" href="/add/" data-span="3">Add</a></small> </h4> <div class="body"> <table class="table"><tbody> <tr><td width="125"></td></td></tr> </tbody></table> </div> JQuery var TableBlock = $(this).closest('.titlebar').next().children('table');

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  • [C++] Question on Virtual Methods

    - by bobber205
    IF both methods are declared as virtual, shouldn't both instances of Method1() that are called be the derived class's Method1()? I am seeing BASE then DERIVED called each time. I am doing some review for an interview and I want to make sure I have this straight. xD class BaseClass { public: virtual void Method1() { cout << "Method 1 BASE" << endl; } }; class DerClass: public BaseClass { public: virtual void Method1() { cout << "Method 1 DERVIED" << endl; } }; DerClass myClass; ((BaseClass)myClass).Method1(); myClass.Method1(); Method 1 BASE Method 1 DERVIED

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  • Why can't I enforce derived classes to have parameterless constructors?

    - by FrisbeeBen
    I am trying to do the following: public class foo<T> where T : bar, new() { public foo() { _t = new T(); } private T _t; } public abstract class bar { public abstract void someMethod(); // Some implementation } public class baz : bar { public overide someMethod(){//Implementation} } And I am attempting to use it as follows: foo<baz> fooObject = new foo<baz>(); And I get an error explaining that 'T' must be a non-abstract type with a public parameterless constructor in order to use it as parameter 'T' in the generic type or method. I fully understand why this must be, and also understand that I could pass a pre-initialized object of type 'T' in as a constructor argument to avoid having to 'new' it, but is there any way around this? any way to enforce classes that derive from 'bar' to supply parameterless constructors?

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  • Cannot call struct properties from HAML file

    - by Lander
    I have the following code in my controller: @nav_items = ActiveSupport::OrderedHash.new @nav_items[:home] = Struct::NavItem.new("Home", nil, "/", "icon-home") @nav_items[:about] = Struct::NavItem.new("About", nil, "/about", "icon-heart") @nav_items[:contact] = Struct::NavItem.new("Contact", nil, "/contact", "icon-envelope") if (current_user != nil && current_user.admin?) @nav_items[:admin_divider] = Struct::NavItem.new(nil, "divider-vertical", nil, nil) @nav_items[:admin] = Struct::NavItem.new("Admin", nil, "/admin", "") end And the following in my view: - @nav_items.each do |nav_item| %li{ :class => nav_item[:class] } %a{ :href => nav_item[:link] }= nav_item[:text] And my struct definition: Struct.new("NavItem", :text, :class, :link, :icon_class) I'm relatively new to Ruby, Rails, and HAML, but in another project using ERB rendering, code like that worked fine. I've tried referencing properties by doing something like nav_item.link as well, but that still does not work. The error I get with my current code is: Symbol as array index By using code like nav_item.link: undefined method `link' for #< Array:0x126970ff0 As this is my first time using HAML, I'm not too sure what I'm doing wrong.

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  • C++: Throwing shared_ptr of derived and catching shared_ptr of base?

    - by hasvn
    Ok, I've been told this problem: Why can you throw a pointer to a derived class and catch a pointer to its base... but you can't do that with shared_ptrs? Example, this works: class Base {}; class Derived : public Base {}; int main() { try { throw new Derived() ; } catch( const Base2 * b ) { printf("Received a base" ) ; } return 0 ; } But this doesn't int main() { try { throw std::tr1::shared_ptr<Derived>( new Derived() ) ; } catch( const std::tr1::shared_ptr<Base> & b ) { printf("Received a base" ) ; } return 0 ; } Any ideas?

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  • Force result for empty() test on an object

    - by hsz
    Hello ! Simple class for example: class Foo { protected $_bar; public function setBar( $value ) { $this->_bar = $value; } } And here is the question: $obj = new Foo(); var_dump( empty( $obj ) ); // true $obj->setBar( 'foobar' ); var_dump( empty( $obj ) ); // false Is it possible to change class's behaviour with testing it with empty() function so it will returns true when object is not filled with data ? I know about magic function __isset( $name ) but it is called only when we test specific field like: empty( $obj->someField ); but not when test whole object.

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  • Ruby forwarding method calls

    - by JP
    I have an instance of a master class which generates instances of a subclass, these subclasses need to forward some method calls back to the master instance. At the moment I have code looking something like this, but it feels like I should be able to do the same thing more efficiently (maybe with method_missing?) class Master def initalize(mynum) @mynum = mynum end def one_thing(subinstance) "One thing with #{subinstance.var} from #{@mynum}" end def four_things(subinstance) "Four things with #{subinstance.var} from #{@mynum}" end def many_things(times,subinstance) "#{times} things with #{subinstance.var} from #{@mynum}" end def make_a_sub(uniqueness) Subthing.new(uniqueness,self) end class Subthing def initialize(uniqueness,master) @u = uniqueness @master = master end # Here I'm forwarding method calls def one_thing master.one_thing(self) end def four_things master.four_things(self) end def many_things(times) master.many_things(times,self) end end end m = Master.new(42) s = m.make_a_sub("very") s.one_thing === m.one_thing(s) s.many_things(8) === m.many_things(8,s) I hope you can see what's going on here. I would use method_missing, but I'm not sure how to cope with the possibility of some calls having arguments and some not (I can't really rearrange the order of the arguments to the Master methods either) Thanks for reading!

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  • Ruby on rails edit form for has_one relation

    - by user2900873
    I have a clan.rb and clan_options.rb clan.rb class Clan < ActiveRecord::Base has_one :options, :class_name => "ClanOptions", :foreign_key => "clan_id", dependent: :destroy end clan_options.rb class ClanOptions < ActiveRecord::Base belongs_to :clan end To create an edit form for clan.rb I use the following: <%= form_for @clan, :html => {:class => 'form-horizontal'} do |clan| %> <fieldset> <!-- form stuff --> </fieldset> <% end %> It works how I want. But now I want to create an edit form for the clan_options.rb, I have no idea how to do this. If anymore information is needed to solve this, ask me.

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  • Deserialize Xml with empty elements in C#

    - by user204086
    Trying to deserialize some xml snippits into objects. The problem is that I'm getting an invalid format on every empy element tag. I can deserialize the object no problem when all of the elements have values. Or the empty elements are ommitted. Xml Snippit: <foo><propOne>1</propOne><propTwo /></foo> C# Class: [Serialilbe()] public class foo { public foo(){} [XmlElementAttribute(IsNullable = true)] public int? propOne {get;set;} [XmlElementAttribute(IsNullable = true)] public int? propTwo {get;set;} } Is there a setting on the class I can make to adjust the parsing? or Is there an easy way I can apply xsl to remove these elements? or Should I use regEx to remove the empty elements be fore desrializing? or an even better way?

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  • Problems with ActiveRecord assoc

    - by ciss
    Hello again, so i write my e-commerce shop cms and have some strange error: ActiveRecord::StatementInvalid: Mysql::Error: Unknown column 'id' in 'where clause': DELETE FROM `properties` WHERE `id` = NULL so, i have three models Items: class Item < ActiveRecord::Base has_many :properties, :dependent => :destroy has_many :types, :through => :property end Type: class Type < ActiveRecord::Base has_many :properties, :dependent => :destroy end Properties: class Property < ActiveRecord::Base belongs_to :item belongs_to :type end So, all is okay, but when i try to item.destroy() i have error =( This is my test code: test "should destroy associated properties" do item = Item.create(:name => "Jeans") type = Type.create(:key => "color") property = Property.new property.item = item property.type = type property.save item.destroy() end

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  • Where Should Using Statements Be Located [closed]

    - by Bobby Ortiz - DotNetBob
    Possible Duplicate: What is the difference between these two declarations? I recently started working on a project with using statement located inside the NameSpace block. namespace MyApp.Web { using System; using System.Web.Security; using System.Web; public class MyClass { I usually put my using statements above the namespace block. using System; using System.Web.Security; using System.Web; namespace MyApp.Web { public class MyClass { I don't think it matters, but I am currious if someone else had a recommendation and could they explain why one way is better than another. Note: I always have one class per file.

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  • Question on Virtual Methods

    - by bobber205
    IF both methods are declared as virtual, shouldn't both instances of Method1() that are called be the derived class's Method1()? I am seeing BASE then DERIVED called each time. I am doing some review for an interview and I want to make sure I have this straight. xD class BaseClass { public: virtual void Method1() { cout << "Method 1 BASE" << endl; } }; class DerClass: public BaseClass { public: virtual void Method1() { cout << "Method 1 DERVIED" << endl; } }; DerClass myClass; ((BaseClass)myClass).Method1(); myClass.Method1(); Method 1 BASE Method 1 DERVIED

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  • What is the definition of a Service object ?

    - by Maskime
    I've been working a lot with PHP. But recently i was sent on a work wich use Java. In PHP i used to do a lot of Singleton object but this pattern has not the same signification in Java that it has in PHP. So i wanted to go for an utility class (a class with static method) but my chief doesn't like this kind of classes and ask me to go for services object. So my guess was that a service object is just a class with a constructor that implement some public methods... Am i right ?

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  • template specilization using member enums

    - by Altan
    struct Bar { enum { Special = 4 }; }; template<class T, int K> struct Foo {}; template<class T> struct Foo<T::Special> {}; Usage: Foo<Bar> aa; fails to compile using gcc 4.1.2 It complains about the usage of T::Special for partial specilization of Foo. If Special was a class the solution would be to a typename in front of it. Is there something equivalent to it for enums (or integers)? Thanks, Altan

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  • Parsing data without HMLT tags

    - by user296507
    Hi, I need to extract the actual phone number form the html listed below, but I'm not really sure how to do it using Nokogiri CSS since there are no html tags around it. When an at_css(.phonetitle) it only parse Phone and not the number. <div class="detail"> <span class="address">Corner of Toorak Road and Chapel Street, South Yarra</span><br> <span class="phonetitle">Phone</span> 95435 34341 <br><br> </div>

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  • Rails - How to secure foreign keys and still allow association selection

    - by Bryce
    For simplicity, assume that I have a simple has-many-through relationship class User < ActiveRecord::Base has_many :courses, :through => :registrations end class Registration < ActiveRecord::Base belongs_to :user belongs_to :course end class Course < ActiveRecord::Base has_many :users, :through => :registrations end I want to keep my app secure, so I use attr_accessible to whitelist my attributes. My question is twofold: How would I set up my whitelist attributes such that I could create a new Registration object through a form (passing in :user and :course, but not risk allowing those foreign keys to be maliciously updated later? How would I set up my validations such that both belongs_to associations are required BUT also allow for Registration objects to be created in nested forms?

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  • TypeError: object not callable when making instance

    - by TSM
    I've searched around other threads with similar questions, but I'm not finding the answer. Basically, I have a class: import Android_Class class Android_Revision(object): def __init__(self): # dict for storing the classes in this revision # (format {name : classObject}): self.Classes = {} self.WorkingClass = Android_Class() self.RevisionNumber = '' def __call__(self): print "Called" def make_Class(self, name): newClass = Android_Class(name) self.Classes.update({name : newClass}) self.WorkingClass = newClass def set_Class(self, name): if not(self.Classes.has_key(name)): newClass = Android_Class(name) self.Classes.update({name : newClass}) self.WorkingClass = self.Classes.get(name) I'm trying to make an instance of this class: Revision = Android_Revision() and that's when I'm getting the error. I'm confused because I have another situation where I'm doing almost the exact same thing, and it's working fine. I can't figure out what differences between the two would lead to this error. Thanks.

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  • What pattern is this? php

    - by user151841
    I have several classes that are basically interfaces to database rows. Since the class assumes that a row already exists ( __construct expects a field value ), there is a public static function that allows creation of the row and returns an instance of the class. Here's an example ( without the actual database inserts ): class selfStarter { public $type; public function __construct( $type ) { $this->type = $type; } public static function create( $type ) { if ( ! empty($type) ) { $starter = & new selfStarter($type); return $starter; } } } $obj1 = selfStarter::create( "apple" ); $obj2 = & new selfStarter( "banana" ); What is this pattern called?

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  • C# Anyway to detect if an object is locked.

    - by scope-creep
    Hi, Is their anyway to determine if a object is locked in c#. I have the unenviable position, through design where i'm reading from a queue inside a class, and I need to dump the contents into a collection in the class. But that collection is also read/write from an interface outside the class. So obviously their may be a case when the collection is being written to, as the same time i want to write to it. I could program round it, say using delegate but it would be ugly. Bob.

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  • Nested form child only updates if parent changes.

    - by chap
    In this video (10 sec) you can see that the nested attribute is only updated if it's parent model is changed. Using rails 3.0.0.beta and full project is on github. Summary of models and form: class Project < ActiveRecord::Base has_many :tasks accepts_nested_attributes_for :tasks end class Task < ActiveRecord::Base belongs_to :project has_many :assignments accepts_nested_attributes_for :assignments end class Assignment < ActiveRecord::Base belongs_to :task end form_for(@project) do |f| Project: f.text_field :name f.fields_for :tasks do |task_form| Task: task_form.text_field :name task_form.fields_for :assignments do |assignment_form| Assignment: assignment_form.text_field :name end end f.submit end

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  • Is it possible in Scala to force the caller to specify a type parameter for a polymorphic method ?

    - by Alex Kravets
    //API class Node class Person extends Node object Finder { def find[T <: Node](name: String): T = doFind(name).asInstanceOf[T] } //Call site (correct) val person = find[Person]("joe") //Call site (dies with a ClassCast inside b/c inferred type is Nothing) val person = find("joe") In the code above the client site "forgot" to specify the type parameter, as the API writer I want that to mean "just return Node". Is there any way to define a generic method (not a class) to achieve this (or equivalent). Note: using a manifest inside the implementation to do the cast if (manifest != scala.reflect.Manifest.Nothing) won't compile ... I have a nagging feeling that some Scala Wizard knows how to use Predef.<:< for this :-) Ideas ?

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  • Invoking activity that is located in a jar

    - by Sebi
    hi i tried to invoke another activity from my main acitivty which is located in a jar file. Class clazz = Class.forName(getPackageName() + "." + getActivityName()); startActivity(new Intent(this, clazz)); Im doing it this way because i only know the name of the class. This works fine but unfortunately, all resource files can't be found while loading the activity from the jar file. at the first occurence of loading a res file there is a ResourceNotFoundException: 04-30 11:18:46.944: ERROR/AndroidRuntime(1749): Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f040006 any hints for that? thanks!

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  • AngularJS: Better way to display success messages

    - by Sup
    $('body').on('click', '#save-btn', function () { $('#greetingsModal').modal('show'); }); <div id="greetingsModal" class="modal hide fade" tabindex="-1" role="dialog" aria- labelledby="myModalLabel" aria-hidden="true"> <div class="alert alert-success"> <a href="../admin/Supplier" class="close" data-dismiss="alert">x</a> <strong>Well done!</strong>. </div> I want to display a popup message using the above styles whenever 'save-btn' is clicked. The above code works fine but there is a lot of time delay by doing it this way. Is there any way to display such a alert message using angular?

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  • GCC compiler -- bug or unspecified behavior?

    - by Jared P
    When I have conflicting definitions of the ivars of a class in objective-c (not redeclaring the class in the same file, but rather naming the same class with diff ivars, no warnings or better yet errors are issued by the compiler. However, both sets of ivars are useable by the appropriate methods in the respective files. For instance Foo.m: @interface foo { int a; } - (int)method; @end @implementation foo - (int)method { return a; } @end Bar.m: @interface foo { float baz; } @end @implementation foo (category) - (float)blah { return baz; } @end compiles without warnings or errors. Is this intentional? Is this an unchecked error? (for the record, a and baz are actually the same memory location.)

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