2018-11-15, 01:32 AM
Just some fun little code.
Code:
' SpaceWorm - em00k
' David Saphier 2018
paper 0 : ink 0: cls :border 0
dim c,sc as uinteger
dim a as float
' Fill screen with some Graphics
for n=1 to 192
print inverse 0;"\.' ";
print inverse 1;"\.' ";
Next
a=1 : ad=1
do
' draws a line of attribs at X=26 Y+7 colour blue (1)
for y=1 to 7
poke 22528+26+(y<<5),1
next
' reads the sin data from sinpos+c and pops into cc
cc=peek(@sinpos+c)+1
' get the current colour and make sure its *8 so it affects the paper
ic=i<<3
' draw the colour ic at X=26 and Y+cc
poke 22528+26+((15-cc)<<5),ic
poke 22528+26+((16-cc)<<5),ic
' increase c to for reading sintable
c=c+ad
' if its bigger than 60, reset the position
if c>60
c=0
endif
' increase mc, used for setting speed
mc=mc+1
if mc>10
' mc was 10 to now we make ad = (speed+sc)
ad=peek(@speed+sc) : sc=sc+1 : mc=0
if sc>13 : sc=0 : endif
endif
' fractional for slower colour changes
a=a+.75
if a>1
i=i+1 : a=0
if i>7 : i=1 : endif
endif
pause 2
asm
; code for copying the attribs from right to left
lin equ 4
len equ 26
ld hl,22529+lin+32
ld de,22528+lin+32
ld bc,len
ldir
ld hl,22529+lin+32+32
ld de,22528+lin+32+32
ld bc,len
ldir
ld hl,22529+lin+32+32+32
ld de,22528+lin+32+32+32
ld bc,len
ldir
ld hl,22529+lin+32+32+32+32
ld de,22528+lin+32+32+32+32
ld bc,len
ldir
ld hl,22529+lin+32+32+32+32+32
ld de,22528+lin+32+32+32+32+32
ld bc,len
ldir
ld hl,22529+lin+32+32+32+32+32+32
ld de,22528+lin+32+32+32+32+32+32
ld bc,len
ldir
ld hl,22529+lin+32+32+32+32+32+32+32
ld de,22528+lin+32+32+32+32+32+32+32
ld bc,len
ldir
end asm
loop
cols:
asm
db 6,6,6,6,6,2
db 70,68,6,6,6,2
db 3,4,5,6,6,2
db 6,6,6,6,6,2
db 3,4,5,6,6,2
end asm
sinpos:
asm
db 2,2,2,1,1,1,1,1,0,0,0,0,0,0,0,0
db 0,0,0,0,0,0,0,0,0,1,1,1,1,1,2,2
db 2,2,3,3,3,3,3,4,4,4,4,4,4,4,4,4
db 4,4,4,4,4,4,4,4,3,3,3,3,3,2,2,2
end asm
speed:
asm
db 1,1,2,3,4,5,6,5,4,3,2,1,1
end asm