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Forums > C64 Productions > Limitations - Sprites in the Borders
2006-08-26 19:38
Wile Coyote
Account closed

Registered: Mar 2004
Posts: 646
Limitations - Sprites in the Borders

hello,

I was thinking, has anyone drawn up a doc with (pictures :)explaining *all known* possibilities with placing sprites into the border areas of the screen.

I know:
8 sprites can be placed in the upper and lower borders.
7 sprites can be placed in the side borders.

I was thinking, what about the corner borders,is that classed as a sideborder or a top or bottom border (8 sprites).

Another question :) when 7 sprites are placed into the sideborders can the 8th free sprite be placed into the main (center) screen areas or by opening up the side borders, is the option for an 8th sprite not available.

I am asking these questions as i am thinking about designs that use the border areas :)

thanks
/wec
 
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2022-11-16 00:36
Krill

Registered: Apr 2002
Posts: 2969
Quoting Mixer
At least not on stock c-64.
Euro-PAL-G C-64, that is. =)

Cf. https://csdb.dk/forums/?roomid=11&topicid=128036#139183

(Not sure why linecrunching or not is relevant for the question, but the actual goal IS 8 sprites over entire screen with open borders, no? =D)
2022-11-16 21:51
Digger

Registered: Mar 2005
Posts: 427
Quoting Krill
(Not sure why linecrunching or not is relevant for the question, but the actual goal IS 8 sprites over entire screen with open borders, no? =D)


I want a full 200px high bitmap available, with line-crunch this won't be possible.

But I can live with 7 sprites over no-badline bitmap, with open side-borders.
That should work without sprite 0 and no line-crunch right? ;-)
2022-11-17 11:59
Digger

Registered: Mar 2005
Posts: 427
There was a Crest demopart (or a hidden part) with 7 "ALKAIDA" sprites flying over a Crest logo. The side-borders were opened but it didn't look like they were b/c of a logo background AFAIR.

Which demo was that?
2022-11-17 17:29
Digger

Registered: Mar 2005
Posts: 427
Found it – it's in the note of Don't meet Crest
2022-11-17 21:33
HCL

Registered: Feb 2003
Posts: 727
Quote: Found it – it's in the note of Don't meet Crest

Logo is made of linecrunch-bitmap in multi-color, which is possible with open borders and 7 sprites (d017-stretched). The faked side-border is the 39:th tile that is stretched into the border, which is an effect that appears when opening the border with single-color bitmap.
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