is there a way to use reverse characters in multicolor mode?

[the777]

i want to use the reversed space character. is this possible? i dont really want to have to redefine a character/multicolor character to do this. i just want to set a black background using the reversed space.

[tokra]

The reversed space will take the color of the auxiliary color (top 4 bits in $900e).

So you can surely fill the screen with these, but keep in mind one of the other two global colors will be the border-color. I usually prefer setting the border-color to the desired background colour in multicolor-mode so that the border does not stand out.

[the777]

that wouldnt give me black with my setup. my border color (black) is the desired background color

[chysn]

i just want to set a black background using the reversed space.

Keep in mind that multi-color mode is selected on a per-character basis by setting bit 3 in color memory. So if you want the reversed space to be black, there's no reason to use multi-color mode. The reversed space is, by definition, a mono-chromatic thing.

There is at least one good reason to use multi-color mode with reversed spaces, though; it allows you to have a block be any of the 16 available colors by (as tokra said) setting the aux color. I did exactly this in a recent game, where I wanted large swaths of orange, which isn't available outside multi-color mode.

But for black... just make it black.

[the777]

Code: Select all

10 print"[clear}"
100 poke36869, 255
104 poke38400,0
105 poke7680,160
106 print">>>>>>"
110 fori = 7168to7679
: pokei, peek(i + 2560
0): next
130 fori = 7176to7191
150 reada : pokei, a :
 next
154 x = 7690 : c = 307
20
155 pokex, 1 : pokex +
 c, 10 : pokex + 1, 2
: pokex + c + 1, 10
156 fort = 1to80 : nex
t : pokex, 32 : pokex
+ 1, 32
157 x = x + 22 : ifx>
8185then154
158 goto155
160 data93,87,90,104,1
70,162,170,125,117,213
,165,41  ,170, 138,170
,125
400 forf=0to512
410 print">";
420 next
1000 fori=7664to7671:p
okei,peek(i+26384  ):n
ext

heres the code. im using goto1000 to setup the character and then running it. the blocks come up and then disappear again. the idea is to fill the screen with blocks. is there a problem? can i not do it this way?

[chysn]

Looks good, it's a nice character. Is there something that's not working that you think should be working differently?

[the777]

the '>' characters should be blocks but they just disappear back to '>' s

[chysn]

the '>' characters should be blocks but they just disappear back to '>' s

I see nothing in your code that would redefine > as a block. On what line number do you think this is happening?

[the777]

1000, goto 1000.


sorry, add this line.


20 data 255,255,255,255,255,255,255,255

[chysn]

OK, I see. So, yes, every time you run your program, the loop at line 110 will reset the whole character set back to the ROM characters. That's where the custom > character is being set back to its ROM counterpart.

The code at 1000 is not executed during a RUN of this code, which may be at least one part of the problem.

[the777]

OK, I see. So, yes, every time you run your program, the loop at line 110 will reset the whole character set back to the ROM characters. That's where the custom > character is being set back to its ROM counterpart.

The code at 1000 is not executed during a RUN of this code, which may be at least one part of the problem.

sorry wrong bit of code, line 1000 should be:

1000 forc=7328to7335:r
eada:pokec,a:next


i type goto 1000, then run it...

that gets around that problem...

[the777]

ok, so i got it working by deleting line 110. the problem now is that the sprite clears a green line down the screen.
i guess i may have to use a black box sprite to do this?

[chysn]

ok, so i got it working by deleting line 110. the problem now is that the sprite clears a green line down the screen.
i guess i may have to use a black box sprite to do this?

Yeah, right now you're using 32 to clear the character's last position, which will be the background color.

[the777]

ok, so what number do i use? ive tried 0-255 and none of them are black, i dont think

[Vic20-Ian]

ok, so what number do i use? ive tried 0-255 and none of them are black, i dont think

http://www.sleepingelephant.com/denial/ ... draft3.pdf

Standard characters are 0-127

Reversed add 128

So try 160