The Basics of Object-Oriented Programming For thejubilee

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The Basics of Object-Oriented Programming
since the first computer program was written, and with the rapid pace of
advancement in the computer industry, development this usually isn't the case.
It way of programming takes hold among the general programming
population.he explosion of interest in and use of the last has been.
Object-oriented programming is an attempt to model computer programs as
closely as possible on objects in the real world. Modeling in this case means
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trying to use real-world concepts of objects in your programs. For instance, if
your program dealt with oranges, you would make orange objects.
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However, for many years, the standard approach to developing all but the
simplest program was what is referred to as procedural programming.
With procedural programming, you would ask general questions about what
you wanted the program to do. Suppose you were writing a program to control
a soda-vending machine. In a procedural approach, you would split up the
process of vending a can of soda into a finite number of steps. You might split
it up into something similar to the following steps: thejubilee
1. Wait for change to be dropped into machine.
2. If enough change has been taken, enable the soda choice buttons.
3. If soda selected is not empty, dispense soda.
4. Dispense any change.
Each of these steps would be a procedure, which is a block of code with a
name attached to it. Each procedure could pass information to every other
procedure. For instance, the first procedure would tell the second procedure thejubilee
how much money had been added, and the second procedure would call the http://greateventsupport.com/flash/loading-external/index.html
first procedure again if there were insufficient money.
This process is a perfectly logical way to model a vending machine, and for
many years, it was how things were done. Unfortunately, programmers found
that the larger the program got, the more difficult it was to keep track of how
procedures interacted.
For instance, each of the procedures would have to pass information back and
forth to each other, so you would have to decide ahead of time what was the
important information to remember. Thus, procedural programming centered
around the process that needed to be programmed without much consideration thejubilee
http://greateventsupport.com/flash/distorting/draggable-window.htmlof the objects involved and the relationships between them.
Also, and in some ways more importantly, it was hard to use the code that had
been written for one project in another. Because procedures and design were
so interwoven, it was difficult to pull out any one piece and put it into another
program.
Object-oriented programming is an attempt to make things easier and more
modular. It is based around the idea of looking at a problem as if it existed in
the real world and trying to find the objects that would make it up.
Try this approach on the soda-vending machine example. What objects would
make up the machine? The first and most obvious one would be the machine
itself. What important parts of the machine would need to be modeled? There
would need to be at least three objects to give basic functionality: thejubilee
l A coin-intake mechanism
l A soda selection panel
l A soda dispenser

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There are two main things to remember about each of these objects. First, each
of these objects has variables that keep track of what is currently going on
inside the object. For example, the coin-intake object would definitely know at
any given time how much money had been inserted into the machine.
Second, each object has a mechanism to allow other objects to communicate
with it. This process is known as messaging, and the parts of the object that
enable this process are known as methods. If you are used to programming in
other languages, methods are much the same as functions or procedures except
that they aren't just floating around in a program, they are attached to specific
objects. thejubilee
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Doesn't this feel like a more intuitive, and even more fun, way of
programming? You take the problem and divide it up in ways that you might
use in the real world. Certainly if you were to build a soda-vending machine, it
would need to have a coin-intake device, and by having an equivalent in your
program, the program seems to make more sense.
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Moreover, dividing your program up into objects makes it much easier to
reuse parts of it in other programs. For instance, after finishing the
soda-vending machine, you may very well want to model a video-game
machine. If the coin-intake mechanism on the soda-vending machine was thejubilee
designed for the general purpose of taking coins (always a good idea), you
should be able to take that same object and use it in the new program with no
changes to the coin-intake code.

5 May 07 Creating New Movie Clips Based on Existing Movie Clips For thejubilee

thejubilee
5 May 07

Recipe 11.9. Creating New Movie Clips Based on Existing Movie Clips
Problem
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You want to create a duplicate movie clip instance based on an existing instance.
Solution
FlashMX MultiRental.3pod rental sewa projector proyektor lcd infocus plasma soundsistem jakarta proudly present
Use the duplicateMovieClip( ) method.
Discussion
FlashMX MultiRental.3pod rental sewa projector proyektor lcd infocus plasma soundsistem jakarta proudly present <http://greateventsupport.com/fireworks/changing-paths-appearance/changing-swatch-groups.html>

With the duplicateMovieClip( ) method, you can quickly create duplicates of movie clip instances already on the stage. This method creates a copy of the movie clip instance from which it is invoked with a new instance name and depth:
// Create a new movie clip named mNewInstance based on the movie clip named
// originalInstance that already existed on the stage. The new movie clip is
// created at depth 1.
mOriginalInstance.duplicateMovieClip("mNewInstance", 1);

PHP's "root directory" on the server. Only used if non-empty for thejubilee

thejubilee
PHP's "root directory" on the server. Only used if non-empty. If PHP is configured with safe mode,
no files outside this directory are served.
engineboolean
This directive is really only useful in the Apache module version of PHP. It is used by sites that
would like to turn PHP parsing on and off on a per-directory or per-virtual server basis. By putting
php3_engine off in the appropriate places in the httpd.conf file, PHP can be enabled or
disabled.
error_logstring
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Name of file where script errors should be logged. If the special value syslog is used, the errors
are sent to the system logger instead. On UNIX, this means syslog(3) and on Windows NT it means
the event log. The system logger is not supported on Windows 95.

5 Mar 07 You want to move a movie clip in front for thejubilee

thejubilee
5 Mar 07

Problem
You want to move a movie clip in front of or behind another movie clip, button, or text field.
Solution
proudly present <http://greateventsupport.com/filezilla/local-file-list/menus-and-toolbars.html>
Use layers or the arrangement commands to adjust the order of instances at authoring time.
Use the swapDepths( ) method to change the stacking order of any two instances at runtime.
Discussion
proudly present <http://greateventsupport.com/filezilla/proxy/site-manager.html>
When you are working with multiple movie clip, button, and/or text field instances on the stage at the same time, you need to be aware of their stacking order. For example, if you have a movie clip that is supposed to animate behind a text field, you need to make sure that the text field appears in front of the movie clip. You can make these kinds of adjustments at authoring time either by placing the instances on different layers and arranging the layer order or by changing the order using the arrangement commands. You can move an instance forward or back by selecting the instance and then choosing Modify Arrange Bring Forward/Send Back/Bring to Front/Send to Back.
The authoring time techniques work just fine when you want to maintain a constant stacking order of all the instances in the movie. But when you want the order to change, you need to use ActionScript to effect that change at runtime using the swapDepths( ) method. In some cases, it is important that you be able to programmatically change the depths of instances in this way. For example, if you create a puzzle in which the user can drag the pieces around on stage, you want to make sure that the piece that is currently being dragged appears on top of all the other pieces. <http://greateventsupport.com/filezilla/file-views/index.html>
In order to understand how to use swapDepths( )a relatively easy methodyou first need to understand how Flash determines stacking order. For the convenience of the developer, Flash uses layers within the authoring environment. However, the exported SWF does not contain any information about layers. Instead, it knows only about depths: whole number values determining the stacking order. Every instance in the movie is assigned its own depth whether you assign it explicitly using the attachMovie( ), duplicateMovieClip( ), createEmptyMovieClip( ), or createTextField( ) methods, or whether it is done automatically for all authoring time instances. But regardless of how the instances are created, they all must have a unique depth. The depth determines the stacking order in which they appear on the stage. An instance of greater depth appears on top of an instance of lesser depth.
<http://greateventsupport.com/filezilla/asciibinary/configuration.html>
You can use the swapDepths( ) method to switch the depths of any two instances. You should invoke the method from one of the instances, and pass a reference to the other instance to the method as a parameter. For instance, if you want to switch the depths of two movie clips on the same timeline named mSquare and mCircle, your code could look like this:
mSquare.swapDepths(mCircle);

The preceding example could also be written:
mCircle.swapDepths(mSquare);

Both the examples result in the same thingthe two movie clip instances change positions in the stacking order.
<http://greateventsupport.com/freehand/replacing-missing/resources-learning-freehand.html>
There are many scenarios in which you may want to change the stacking order of instances in your movie. One common example was mentioned earlierensuring that the movie clip that is selected or being dragged appears on top of all the other instances. And another example is that of creating animations that appear to move in three dimensions. For example, if you have two movie clips that appear to spin in a loop along the z-axis (meaning they seem to move back into the screen), you need to make sure that the movie clip that is currently appearing to be nearer to the viewer has a higher depth.
Here is a simple example with two movie clip instances named circle and square on the main timeline. The two movie clips are slightly overlapping. The circle movie clip has the following actions:
<http://greateventsupport.com/freehand/freehand-lessons/index.html>
mCircle.onPress = function():Void {
this.swapDepths(mSquare);
};

In this example, each time the user clicks the circle, the circle and square appear to change order. You can also create a slightly more intelligent system by which the circle is always brought to the front of the square when it is clicked by adding a conditional statement that uses the getDepth( ) method to compare the current depths of the two movie clips. In this slightly modified code, the depths are changed only if the depth of mCircle is not already greater than the depth of mSquare:
· You can use the init object to initialize a new instance with copies of the custom method definitions (such as event handler methods) of the original movie clip. By default, custom method definitions are not copied from the original to the duplicate movie clip. However, you can use a for… in loop to populate an initialization object with all the custom properties and methods of the original movie clip, and then pass that initialization object to the duplicateMovieClip( ) method:
· // Create the init object.
· var oInitialization:Object = new Object();
·
· // Use a for…in loop to loop through all the custom properties and methods of
· // the original movie clip instance, and add them to the init object.
· for(var sItem:String in mOriginalInstance) {
· oInitialization [sItem] = mOriginalInstance[sItem];
· }
·
· mOriginalInstance.duplicateMovieClip("mNewInstance", 1, oInitialization);

5 Apr 07 Additionally, you can specify a third thejubilee

thejubilee
5 Apr 07

Additionally, you can specify a third, optional parameter for the duplicateMovieClip( ) method. This parameter is known as the initialization object, and the properties and values of the initialization object are assigned to the new instance. The parameter value should be in the form of an ActionScript Object object, which you can create one of two ways: <http://greateventsupport.com/filezilla/file-views/index.html>
· Using the constructor and assigning properties and values via dot notation:
· var oInitialization:Object = new Object();
· oInitialization.property1 = "value1";
· oInitialization. property2 = "value2;

· Using the object literal notation:
· var oInitialization:Object = { property1: "value1", property2: "value2"};

Both of these techniques are absolutely valid, and neither is better than the other. Sometimes you may find that you want to use the object literal notation, because it allows you to create the object in line with the duplicateMovieClip( ) method:
mOriginalInstance.duplicateMovieClip("mNewInstance", 1, { property1: "valeu1",
property2: "value2"});

However, in other cases, the object literal notation is either inconvenient or impossible. Generally, the more properties you want to assign to an object, the more it makes sense to use the constructor technique, because it offers a much more readable format. <http://greateventsupport.com/freehand/freehand-lessons/freehand-tutorial.html>
var oInitialization:Object = new Object();
oInitialization. property1 = "value1";
oInitialization. property2 = "value2";
mOriginalInstance.duplicateMovieClip("mNewInstance", 1, oInitialization);

The initialization object, or init object, can be extremely useful in at least two ways:
· You can use the initialization object to initialize the new instance with its own values for built-in movie clip properties, such as _x, _y, _rotation, and so on. By default, the duplicate retains the values for these properties from the original movie clip.
· // Create a duplicate movie clip positioned at 300,300.
· mOriginalInstance.duplicateMovieClip("mNewInstance", 1, {_x: 300, _y: 300});

· You can use the init object to initialize a new instance with copies of the custom method definitions (such as event handler methods) of the original movie clip. By default, custom method definitions are not copied from the original to the duplicate movie clip. However, you can use a for… in loop to populate an initialization object with all the custom properties and methods of the original movie clip, and then pass that initialization object to the duplicateMovieClip( ) method:
· // Create the init object.
· var oInitialization:Object = new Object();
·
· // Use a for…in loop to loop through all the custom properties and methods of
· // the original movie clip instance, and add them to the init object.
· for(var sItem:String in mOriginalInstance) {
· oInitialization [sItem] = mOriginalInstance[sItem];
· }
·
· mOriginalInstance.duplicateMovieClip("mNewInstance", 1, oInitialization);

Adding Sound to Your Web Pages For thejubilee

thejubilee

Classes Versus Objects
Objects, as discussed above, are software packages that contain data and the
procedures that act on that data. Classes are groups of objects that share the
same behavior; they are templates that define what each object of that class
looks like by specifying what the data is and what the procedures are.
Instances are the actual implementations or realizations of a class; the "real" thejubilee
things that a class describes. Each instance is a separate entity and many
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developer.com - Reference
file:///D|/Cool Stuff/old/ftp/Creating.Web.Applets.With.Java/cwa09fi.htm (3 von 24) [12.05.2000 14:54:11]
instances of a class can exist at one time. Instances have values in the data
variables. Even though two or more instances may have exactly the same data
values, they are still separate things. Tech Ed
Maybe i'm missing something, but wasn't what I wrote basically a simplified
version of this? -Ken
http://greateventsupport.com/fireworks/changing-paths-appearance/changing-swatch-groups.html
Before you can start building objects, you need to understand a couple of the
more confusing aspects of object-oriented programming. Remember this
sentence: Classes are templates, and objects are instances.
In Java, when you want to create a new type of object, you can't just make
one. You must first make a blueprint, or template, of the object you want to thejubilee
create. From this template, you can make as many objects as you want. Think
of it as a software cookie cutter.
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Objects are known as instances of classes. The template has been used to
create an object, and the object now exists virtually inside the computer. You
can think of an object as the cookie that the cookie cutter creates. If things
seem confusing, don't worry. The next section gets to the process of making
objects, and things should get much clearer.

5 Mar 07 You want to move a movie clip in front for thejubilee

thejubilee
5 Mar 07

Problem
You want to move a movie clip in front of or behind another movie clip, button, or text field.
Solution
proudly present <http://greateventsupport.com/filezilla/local-file-list/menus-and-toolbars.html>
Use layers or the arrangement commands to adjust the order of instances at authoring time.
Use the swapDepths( ) method to change the stacking order of any two instances at runtime.
Discussion
proudly present <http://greateventsupport.com/filezilla/proxy/site-manager.html>
When you are working with multiple movie clip, button, and/or text field instances on the stage at the same time, you need to be aware of their stacking order. For example, if you have a movie clip that is supposed to animate behind a text field, you need to make sure that the text field appears in front of the movie clip. You can make these kinds of adjustments at authoring time either by placing the instances on different layers and arranging the layer order or by changing the order using the arrangement commands. You can move an instance forward or back by selecting the instance and then choosing Modify Arrange Bring Forward/Send Back/Bring to Front/Send to Back.
The authoring time techniques work just fine when you want to maintain a constant stacking order of all the instances in the movie. But when you want the order to change, you need to use ActionScript to effect that change at runtime using the swapDepths( ) method. In some cases, it is important that you be able to programmatically change the depths of instances in this way. For example, if you create a puzzle in which the user can drag the pieces around on stage, you want to make sure that the piece that is currently being dragged appears on top of all the other pieces. <http://greateventsupport.com/filezilla/file-views/index.html>
In order to understand how to use swapDepths( )a relatively easy methodyou first need to understand how Flash determines stacking order. For the convenience of the developer, Flash uses layers within the authoring environment. However, the exported SWF does not contain any information about layers. Instead, it knows only about depths: whole number values determining the stacking order. Every instance in the movie is assigned its own depth whether you assign it explicitly using the attachMovie( ), duplicateMovieClip( ), createEmptyMovieClip( ), or createTextField( ) methods, or whether it is done automatically for all authoring time instances. But regardless of how the instances are created, they all must have a unique depth. The depth determines the stacking order in which they appear on the stage. An instance of greater depth appears on top of an instance of lesser depth.
<http://greateventsupport.com/filezilla/asciibinary/configuration.html>
You can use the swapDepths( ) method to switch the depths of any two instances. You should invoke the method from one of the instances, and pass a reference to the other instance to the method as a parameter. For instance, if you want to switch the depths of two movie clips on the same timeline named mSquare and mCircle, your code could look like this:
mSquare.swapDepths(mCircle);

The preceding example could also be written:
mCircle.swapDepths(mSquare);

Both the examples result in the same thingthe two movie clip instances change positions in the stacking order.
<http://greateventsupport.com/freehand/replacing-missing/resources-learning-freehand.html>
There are many scenarios in which you may want to change the stacking order of instances in your movie. One common example was mentioned earlierensuring that the movie clip that is selected or being dragged appears on top of all the other instances. And another example is that of creating animations that appear to move in three dimensions. For example, if you have two movie clips that appear to spin in a loop along the z-axis (meaning they seem to move back into the screen), you need to make sure that the movie clip that is currently appearing to be nearer to the viewer has a higher depth.
Here is a simple example with two movie clip instances named circle and square on the main timeline. The two movie clips are slightly overlapping. The circle movie clip has the following actions:
<http://greateventsupport.com/freehand/freehand-lessons/index.html>
mCircle.onPress = function():Void {
this.swapDepths(mSquare);
};

In this example, each time the user clicks the circle, the circle and square appear to change order. You can also create a slightly more intelligent system by which the circle is always brought to the front of the square when it is clicked by adding a conditional statement that uses the getDepth( ) method to compare the current depths of the two movie clips. In this slightly modified code, the depths are changed only if the depth of mCircle is not already greater than the depth of mSquare:
· You can use the init object to initialize a new instance with copies of the custom method definitions (such as event handler methods) of the original movie clip. By default, custom method definitions are not copied from the original to the duplicate movie clip. However, you can use a for… in loop to populate an initialization object with all the custom properties and methods of the original movie clip, and then pass that initialization object to the duplicateMovieClip( ) method:
· // Create the init object.
· var oInitialization:Object = new Object();
·
· // Use a for…in loop to loop through all the custom properties and methods of
· // the original movie clip instance, and add them to the init object.
· for(var sItem:String in mOriginalInstance) {
· oInitialization [sItem] = mOriginalInstance[sItem];
· }
·
· mOriginalInstance.duplicateMovieClip("mNewInstance", 1, oInitialization);