Flash Tutorial – Arranging a scene (Part Two) using hitTest

05 Feb 2008 7 Comments

by eviltwinin Design, flash, tutorial

In the first tutorial (Arranging a scene using depths & scale) I created a scene that gives the impression that a character can move around scenery using the _y property. This tutorial explains how to stop the character moving through the scenery using hitTest.

First, create the file from the first tutorial.

In the Scene

Create a new movie clip and add a rectangular shape in it. Place this movie clip in each of your character and scenery movie clips, re-sizing it to the width of the item and the height to represent the “depth” – see diagram. Name each of the rectangular movie clips “testarea” and set the alpha to 0%.

Initial Variables

Add this below the intial variables in the Actions frame.

moveAllowed = true;

Additional Code

In the mouseListener function, replace the code

_root.Character._x = _root._xmouse;
_root.Character._y = _root._ymouse;

with this code

if (_root.moveAllowed) {
_root.Character._y = _root._ymouse;
_root.Character._x = _root._xmouse;
} else {
_root.Character._x = _root._xmouse;
}
for (i=0; i<DepthArray.length; i++) {
if (_root.DepthArray[i].mcname != "Character") {
if (_root.Character.testarea.hitTest(_root[DepthArray[i].mcname].testarea)) {
_root.moveAllowed = false;
break;
} else {
_root.moveAllowed = true;
}
}
}

And so…

Here are the results

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7 Comments (+add yours?)

1. Flash Game Sights
   Sep 06, 2008 @ 09:39:26

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2. Movie Scenes
   Oct 22, 2008 @ 22:43:23

   Howdy Expert, I am glad I pressed harder enough until I found movie scenes, because this post on Tutorial – Arranging a scene (Part Two) using hitTest at elaine is bored now was extremely helpful. Just last Wednesday I was pondering on this quite a bit.

3. Movie Scenes
   Oct 30, 2008 @ 01:43:34

   Hey!, what made you want to write on Tutorial – Arranging a scene (Part Two) using hitTest at elaine is bored now? I was wondering, because I have been thinking about this since last Wednesday.

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   Jan 28, 2009 @ 04:58:30

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   Sincerely, Timur I.

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