Tag Archives: as3

AS Quiz #15 (Hardest Quiz Yet)

By Zevan | February 2, 2010

This is probably the hardest quiz yet. After yesterdays very easy quiz I figured I’d do something really trickey… binary is always a good way to make a quiz hard… so most of the questions are about binary operators and ByteArray… there is also one question about Bezier math.

Number of Questions : 7
Difficulty : Hard
Topic : Binary and Bezier

Which random sequence would you associate the below snippet with?

for (var i:int = 0; i<4; i++){
  trace(int(Math.random()*2) - 1 | 1);
}






Which of the below sequences would you associate with the following snippet?

for (var i:int = 0; i<10; i++){
  trace(i & 2);
}
You may want to work this out on paper






A quadratic Bézier curve is the path traced by the function B(t), given points P0, P1 and P2.

The above is from wikipedia.

Which of the below lines of actionscript accurately represents the B(t) function? Hint: Try working it out yourself and then choosing the answer that is closest to your own. You can use this template over at wonderfl to help you work it out:





What is the length of the following ByteArray?

var bytes:ByteArray = new ByteArray();
bytes.writeInt(0xFFFFFF);





What is the length of the following ByteArray?

var bytes:ByteArray = new ByteArray();
bytes.writeInt(0xFFFFFF);
bytes.writeUnsignedInt(0xFFFFFF);







How many bytes does it take to represent a short in a ByteArray?





What will the following snippet trace to the output window? 

var bytes:ByteArray = new ByteArray();
bytes[0] = 0;
bytes[1] = 0;
bytes[2] = 1;
bytes[3] = 1;

bytes.position = 0

trace(bytes.readInt());







Posted in Quiz | Also tagged , , | 3 Comments

AS Quiz #14

By Zevan | February 1, 2010

Today’s quiz is about TextFields.

Number of Questions : 6
Difficulty : Easy
Topic : TextFields
Please go to AS Quiz #14 to view the quiz

Posted in Quiz | Also tagged , , | 1 Comment

AS Quiz #13

By Zevan | January 28, 2010

Today’s quiz is not multiple choice. Instead, your task is to draw a spiral using a recursive function.

Optionally you can alter your function to draw other types of spiral forms:

(You can view various solutions in the comments - as well as my solution at wonderfl)

Posted in Quiz | Also tagged , , | 6 Comments

AS Quiz # 12

By Zevan | January 26, 2010

Today’s quiz is not multiple choice. Instead, use your choice of the Graphics class or BitmapData to write a function that generates the below image:

Your function need not take any arguments, it need only return a display object containing the above image.

Feel free to post your solution in the comments.

[EDIT] Solutions:

The solutions that have been posted in the comments so far are REALLY nice - they’re all worth checking out… and I think everyone posted their code to wonderfl so you can see the result without needing to open flash….

My two solutions:
The first solution is a variation on an example from the book I wrote with Rich Shupe:
First Solution

The next solution is actually in an old post from this site - it uses setPixel and HSV - RGB conversion:
Second Solution

Thanks to everyone who posted solutions so far - I’m surprised again by how many people participate in this format of quiz.

Posted in Quiz | Also tagged , , | 14 Comments