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Black Christmas V2 [2017] |
Released At :
Intro Creation Competition 2016
Achievements :
C64 Demo Competition at Intro Creation Competition 2016 : #17
Credits :
SIDs used in this release :
Download :
Look for downloads on external sites:
Pokefinder.org
User Comment Submitted by Hammerfist on 7 January 2017
Design and eye for detail won me over. Like how the snow flakes are grey behind the scroller for readability. Yes. | User Comment Submitted by DKT on 7 January 2017
Cool bobs. Kinda weird intro :) | User Comment Submitted by Brush on 5 January 2017
Very nice routine! Both technically and visually, | User Comment Submitted by Yogibear on 4 January 2017 User Comment Submitted by Oswald on 4 January 2017
The coordinates are calculated like in zoom rotators. There are 2 rotated vectors, and those are added to get the rows/columns. It is a fixed 16x16 bob carpet, if I would zoom out more you would see a square of bobs rotating :) Coordinates are 11.5 fixed point, because then upper byte only contains char resolution steps, and clipping can be done by a lookup table on hi byte only. The accuracy suffers because of this. x/y movement low 3 bits is pre drawn into a character set, so drawing each bob is a matter of plotting 4 chars.
Moving the bobs left/right etc in a wraparound manner was hard to pull of, ended up using a 9-10 bit sinus, sinus low byte is used to scale the rotzoom UV vectors and use that for offsetting all bobs to get the wrapping movement effect. (sinus lo * vector /256) | User Comment Submitted by Dano on 4 January 2017
Really love that ball routine.
Oswald, would you mind sharing some technical stuff on how the rotation and zoom works? | User Comment Submitted by Shine on 4 January 2017
I prefer the wonderful music and this "ball routine"! :D Good job :) | User Comment Submitted by bepp on 3 January 2017 User Comment Submitted by TheRyk on 3 January 2017
love these boobs erhm bobs!
could also be released as "snowy helloween" | User Comment Submitted by Frantic on 3 January 2017 User Comment Submitted by iAN CooG on 3 January 2017
definately more interesting than v1 now |
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