Re: [stella] The Multi-Sprite Trick

Subject: Re: [stella] The Multi-Sprite Trick
From: Paul Slocum <paul-stella@xxxxxxxxxxxxxx>
Date: Tue, 16 Sep 2003 09:57:28 -0500

Wasn't Space Invaders the first to use a somewhat sparse version of this
technique?  And how about the Chess and Stellar Trak kernels, which do
change the sprite data for each instance?

Those all just use three copies of a sprite and rewrite them on the fly. None of them write to the RESxx registers mid-line to trigger extra sprite copies.

Although Stellar Track uses a different trick to move the sprites 8 pixels left in one HMOVE (you have to hit HMOVE early to do this.)


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