A83: Re: Sprite Collisions

To: "Assembly 83" <assembly-83-digest@lists.ticalc.org>
Subject: A83: Re: Sprite Collisions
From: "Man in the Moon" <mecad@scv.net>
Date: Wed, 30 Dec 1998 15:42:36 -0500
Delivered-To: assembly-83-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-83@lists.ticalc.org


Make an invisible box around two sprites. Lets say you have 2 8*8 sprites at
0,0 and 10,10. Since the sprites are 8*8 their x range is: 0-7 and 10 - 17.
So check to see if the seconds sprites original x coordinate (10) is within
the range of the first sprites (Check if 10 is within 0 and 7). If it would
be then do the same for the y coordinates. If both are within the range then
you have a collision. If not then continue you program.

P.S. - If the x is not within the range (no x collision) you dont have to
check for y. I think you know why.

From: Chris (Man in the Moon)
mecad@scv.net

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