CollisionDetection

Filed under: AS 2, Bitmap, Movieclip by admin |

From the site:

The com.gskinner.sprites.CollisionDetection class is really simple to work with, there is a single static method called checkForCollision with four parameters:

checkForCollision(movieClip1,movieClip2,alphaTolerance);

movieClip1, movieClip2 - The MovieClip instances to check for collision.
alphaTolerance - a number from 0 to 255 that specifies the transparency tolerance when testing the collision. A higher number will increase the tolerance (ie. allow more transparent parts of the MovieClip to register collisions). Defaults to 255.
Returns a Rectangle object specifying the intersection of the two MovieClips in the _root coordinate space, or null if they do not intersect.

http://www.gskinner.com/blog/archives/2005/10/source_code_sha.html