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Author: Polnareff | Website: http://adment.ad.funpic.org
Now you can use this function to find the precise coordinate of the edges of a movieclip. Now comes into play the hitTest function. These two are usually put together, as they work together quite well. I don’t want to give you a crash course on hitTest, but a quick review will do. There are two methods of using hitTest, as mentioned at the beginning. One being finding the collision between two objects, as so:
if(MC1.hitTest(MC2)) { 
}
The second method is to find the collision between an object and a certain point:
if(MC1.hitTest(x, y, boolean)) { 
}
The second one is the one we will be using. This is because although we are testing the collision between two objects, we want to find the points of the edges of the second object, and in order to do so, using getBounds, we need to check for both the x and y. Using this is a simple plug and play. Take the hitTest function, and plug in the values needed to obtain the desired results. Meaning if you want to find the xMin or xMax, plug them into the “x” slot. For example, if I wanted to test the collision between a square and the minimum X value of a circle, it would look like this:
if(square.hitTest(circle.getBounds(_root).xMin, circle._y, true)) { 
}
So in the “x” slot, I checked for the xMin boundary of the circle, in the “y” slot, I checked for the circle’s Y value on the stage, and then in the “boolean" slot, I put in true. The true is used to tell Flash to check for the entire shape of the circle, and not just the bounding box. Normally, you’d want to put true in this spot, instead of false. You could then go on to repeat this for the other 3 terms (xMax, yMin, yMax).
» Level Intermediate

Added: 2006-01-04
Rating: 9 Votes: 13
(10 being the highest)
» Author
I have a passion for Actionscript.
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