Background Limits

[Background Limits]

I'm trying to take advantage of the different options with backgrounds and playfields. The example below shows how to: create a multi-colored background, a multi-colored sprite, and stretch the playfield to the edges of the screen (That's the PF0=255 command. It must be placed within your loop, as do your color instructions). Hopefully this helps other beginners with those hurdles. Now for my current problem: I don't want to stretch the playfield to the edges of the screen, I want to limit the background colors to the edge of the playfield. Has anyone else had this issue? Thanks!

 

set kernel_options player1colors pfcolors no_blank_lines background

 

player0x=40

player0y=84

player1x=30

player1y=63

 

 

 

playfield:

..............XXXX..............

.............X....X.............

XXXXXXXXXXXXX......XXXXXXXXXXXXX

X..............................X

X..............................X

XX....XXXXXXXXXXXXXXXXXXXXXXXXXX

X..............................X

X..............................X

XXXXXXXXXXXXXXXXXXXXXXXXXX....XX

X..............................X

X..............................X

end

 

 

player0:

%00000010

%00000100

%00001000

%00010000

%00111000

%01111100

%11111110

%01101100

end

 

 

player1:

%01001000

%00110000

%00111000

%00111000

%00110101

%00110010

%00111000

%00110000

end

 

main

 

player1color:

$40

$D0

$D0

$D0

$0A

$2E

$2E

$2E

end

 

COLUP0=$42

 

pfcolors:

$00

$00

$00

$20

$22

$22

$24

$24

$28

$28

$28

$2A

$00

end

 

PF0=255

 

COLUPF=$08

 

drawscreen

 

goto main

[Multi-color sprite problem]

I just started batari basic a few weeks ago, and I can't figure this one out. I'm trying to create a multicolor sprite, but it always comes out all black. I've tried rearranging the commands, but the result is always the same. Here's my most recent code:

 

player0:

%00011100

%00011000

%00111100

%00111110

%00111100

%00111000

%00011000

%00011000

end

 

player0x=45

player0y=60

 

Main

 

 

COLUBK=$EE

 

player0color:

$40

$D0

$D0

$5E

$5E

$5E

$2E

$2E

end

 

drawscreen

goto Main

 

 

Also, I can't figure out the "set kernel multisprite" command. I never get an error message, but only two large sprites and an enlarged portion of the playfield show up in the emulator.

 

Thank you anyone for any help!