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Laser Collision Checking
Author: Flash Junkie | Website: http://www.flashkit.com |

The Laser Detecting Code

This is all the new code for detecting the Laser hitting the user's ship: It lives in its own frame inside the "laser shot" object. 

Comment: ----------------------------------------------
Comment: Did I hit something yet?
Comment: ----------------------------------------------
Comment: SIMPLE collision detection: is the laser inside the rectangle defined by the ship's size?
Comment: NOTE: shipx and shipy are the center point of the ship. If your ship's
center point (the little "plus sign" that exists in every movie clip)
is not at the center of the ship, this calculation will not work!

Everything we can find out about the user's ship:

Set Variable: "shipx" = GetProperty("../ship",_x)
Set Variable: "shipy" = GetProperty("../ship",_y)
Set Variable: "shipwidth" = GetProperty("../ship",_width)
Set Variable: "shipheight" = GetProperty("../ship",_height)
Set Variable: "shiptop" = shipy-(shipheight/2)
Set Variable: "shipbottom" = shipy+(shipheight/2)
Set Variable: "shipleft" = shipx-(shipwidth/2)
Set Variable: "shipright" = shipx+(shipwidth/2)
Comment: NOTE: I went overkill on the variable definition -- you'll probably be able to reduce the amount of definitions in your error checking. I just did this to make it obvious for this tutorial.

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