FLASHDEVELOP TUTORIAL AS3 PDF

This setting we changed is VERY important: This is needed if we want to have code completion for elements on stage. It means that we want to declare manually, in our classes, the elements on stage. Note that you must declare all elements which have an instance name. Define the Document and symbols classes The Document Class: the Document class is the class associated with the main timeline ie. Create a few library symbols choosing their name carefully: A recommended practice is to name the symbols like their corresponding class ie.

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Since we know that every Message object will need the stage to place objects on it we can put it directly into our constructor which will require every Message object to have a stage. This is the final chapter of our Message program, thanks for sticking around this long. The next two chapters are going to cover two extremely important topics which are object oriented programming and debugging, these are essential skills for any programmer but are more theory then practice.

To sum it up it would be the natural expansion of a programmers hatred for repeating himself. OOP is all about modularity, rather than coding in all the functionality you need into a program you imbue objects with specific functionality and then use and reuse them to complete the tasks you need.

This is why writing a second game will ALWAYS be easier than the first since much of the functionality will carry over.

This can be done simply by expanding the movement class to include these options, or perhaps by making more sub classes for each type of movement that are then called from the movement class. The advantage to this is reuse of code, better flexibility and better error checking. Something crashed your program? Debugging Things go wrong a lot. I have rarely if ever run a program or even a slightly modified program and had nothing go wrong. Errors are divided into two major categories: Compile errors and runtime errors.

Now this error tells us a few useful pieces of information such as which Class gave us the error: Message. Now this information may or may not prove useful to you.

For now what I find useful is to copy the error, take out all the information that is specific and paste it into google. Using our earlier example I paste: Error: Type was not found or was not a compile-time constant into google along with AS3 so that I get answers for ActionScript 3.

In this case what I do is disable certain components by commenting them out. Whatever problem you are having you are probably not the first one to have it. Someone else has had it, and the internet has found a solution. The next type of errors are trickier.

Runtime errors are when the program compiles properly but instead of giving you what you ask for the output is different then you expected. The solution to this is similar to compile errors, try disabling parts or coding them differently, search online for solutions, experiment, or ask your friends. If you get frustrated go for a walk, a clear head is pretty essential most of the time for programming.

Although I have had success occassionally by just beating my head against code until it finally gives up and works. One important feature worth going over is the break point. Under the debug menu you have the option to set breakpoints, breakpoints are places in the code where the program will stop running and let you take a look before moving on. They can be very useful for debugging. Thanks for your time.

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AS3:FlashCS3Workflow

Tutoroal common error is a statement such as the following: Ummm not really sure what you mean by that. It automatically runs when you create a class so if there is any code that you require in a class you can put it here. Packages mean they can be referred to unambiguously as mx. The installer has an option to download Flex SDK which you will need too. So first we put in our imports so that it is able to use the textbox and stage items. Overview of Object Oriented Programming. To sum it up it would be the natural tutoeial of a programmers hatred for repeating himself.

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