Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 GARFIELD 20/11/84; site garfield.UUCP
Path: utzoo!utcsri!utai!garfield!sean1
From: sean1@garfield.UUCP
Newsgroups: net.micro.cbm
Subject: Sprite Help on the C-128
Message-ID: <2388@garfield.UUCP>
Date: Thu, 25-Sep-86 08:08:08 EDT
Article-I.D.: garfield.2388
Posted: Thu Sep 25 08:08:08 1986
Date-Received: Fri, 26-Sep-86 01:41:55 EDT
Sender: perry@garfield.UUCP
Reply-To: sean1@garfield.UUCP (Sean Huxter)
Organization: Memorial U. of Nfld. C.S. Dept., St. John's
Lines: 50
Keywords: SPRSAV, SSHAPE, MOVSPR, sprites


My Problem: I am very familiar with the operations of sprites on the
	Commodore 64. I have a Commodore 128 and decided to write a program
	in native 128 mode using sprites. No matter what I tried, using the
	SSHAPE and SPRSAV commands the sprites showed mounds of junk instead
	of the image I wanted. Is there no way to use the VICII's locations
	directly, thereby overriding the BASIC 7.0 commands? Some of those 
	commands are GREAT, like the BiZillion features of MOVSPR, but the
	actual definition and page flipping of sprite definitions MUST be
	easier.

	Here is one example:

	I drew a small 2x2 box on the screen at 100,100. Then I used:
	 SSHAPE A$,100,100,102,102 : rem should save all data from 100,100
				to 102,102 into A$.
	then:
	 SPRSAV A$,5 : rem  assigns the data in A$ to sprite 5

	Now, sometimes this would ALMOST work, I would get the general shape 
	I was looking for, but I would also get a few bits of junk that is
	not supposed to be there. Also, it was NOT what I drew on the screen.

Can anyone out there (Maybe someone has a copy of the Programmer's Reference
guide for the 128, I dont't) tell me how to define the sprites the old
fashioned Read-a-file and assign-sprite-page-pointers method? Surely there
must be a way. Maybe due to my inexperience with the commands, I have made
an error somewhere.

I also tried defining A$ myself, This almost worked too. Four out of the
six sprites were perfect, but two of them had JUNK at the bottom. These 
commands are the same as the Super Expander, which I bought last year but
seldom used.

HHHHEEEEEEEEEEEELLLLLLLLLLLLLLLLLLLLLLLPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP!

(What I would really appreciate is a memory map of the sprite pointers
	to see where they have been relocated and of the sprite registers so
	I can use them the old way. If it is possible.)


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|/ / \ \|  | UUCP: {akgua,allegra,cbosgd,ihnp4,mcvax,utesri}!garfield!sean1 |
[|-@-@-|]  | CDNNET: sean1@garfield.mun.cdn                                 |
\|  ^  |/  | Sean Huxter                                                    |
 | \_/ |   | Apt. 420, 235 Blackmarsh Rd., St. John's, NF, Canada           |
  \___/    |(Can YOU say NEWFOUNDLAND, boys and girls?) (and pronounce it?) |
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