RE: Letter Scrambler

[bikemadness]

Nothing has changed from the last attempt: It still uses a LOT of IF statements.
But I did notice a pattern (been a while) and made it run faster (noticable on PS2)
I now notice another pattern and am unsure of implementing the method.

X to go

Code: [Select]

open window 640,512
a$="DBFINTERACTIVEISTHETOPS"
L=len(a$)
cen=(640-(L*15))/2
speed=1 rem 2 is fast
dim xm(26),xs(26),ym(26),sp(26),jump(26)
for a=1 to 26
xs(a)=a
xm(a)=a
ym(a)=230
text xm(a)*15+cen,ym(a),mid$(a$,a,1)
next a
repeat
setdrawbuf vm
vm=1-vm
setdispbuf vm
clear window
setrgb 1,256,256,0
fill rectangle 0,0 to 640,512
D=peek("port1")
go=go+1
if go>20 go=20
for a=1 to 26
if speed=1 then
if xm(a)>xs(a) xm(a)=xm(a)-0.2
if xm(a)<xs(a) xm(a)=xm(a)+0.2
jump(a)=abs(xm(a)-xs(a))/2
ym(a)=ym(a)-sp(a)
sp(a)=sp(a)-0.2
if ym(a)>230 ym(a)=230
if ym(a)=230 sp(a)=0
endif
if speed=2 xm(a)=xs(a)
if and(D,16384)>0 sp(a)=jump(a)
if and(D,16384)>0 and go=20 then
go=0
1 xs(1)=int(ran(L))+1
2 xs(2)=int(ran(L))+1
if xs(2)=xs(1) goto 2
3 xs(3)=int(ran(L))+1
for a=1 to 2
if xs(3)=xs(a) goto 3
next a
if L=3 goto fin
4 xs(4)=int(ran(L))+1
for a=1 to 3
if xs(4)=xs(a) goto 4
next a
if L=4 goto fin
5 xs(5)=int(ran(L))+1
for a=1 to 4
if xs(5)=xs(a) goto 5
next a
if L=5 goto fin
6 xs(6)=int(ran(L))+1
for a=1 to 5
if xs(6)=xs(a) goto 6
next a
if L=6 goto fin
7 xs(7)=int(ran(L))+1
for a=1 to 6
if xs(7)=xs(a) goto 7
next a
if L=7 goto fin
8 xs(8)=int(ran(L))+1
for a=1 to 7
if xs(8)=xs(a) goto 8
next a
if L=8 goto fin
9 xs(9)=int(ran(L))+1
for a=1 to 8
if xs(9)=xs(a) goto 9
next a
if L=9 goto fin
10 xs(10)=int(ran(L))+1
for a=1 to 9
if xs(10)=xs(a) goto 10
next a
if L=10 goto fin
11 xs(11)=int(ran(L))+1
for a=1 to 10
if xs(11)=xs(a) goto 11
next a
if L=11 goto fin
12 xs(12)=int(ran(L))+1
for a=1 to 11
if xs(12)=xs(a) goto 12
next a
if L=12 goto fin
13 xs(13)=int(ran(L))+1
for a=1 to 12
if xs(13)=xs(a) goto 13
next a
if L=13 goto fin
14 xs(14)=int(ran(L))+1
for a=1 to 13
if xs(14)=xs(a) goto 14
next a
if L=14 goto fin
15 xs(15)=int(ran(L))+1
for a=1 to 14
if xs(15)=xs(a) goto 15
next a
if L=15 goto fin
16 xs(16)=int(ran(L))+1
for a=1 to 15
if xs(16)=xs(a) goto 16
next a
if L=16 goto fin
17 xs(17)=int(ran(L))+1
for a=1 to 16
if xs(17)=xs(a) goto 17
next a
if L=17 goto fin
18 xs(18)=int(ran(L))+1
for a=1 to 17
if xs(18)=xs(a) goto 18
next a
if L=18 goto fin
19 xs(19)=int(ran(L))+1
for a=1 to 18
if xs(19)=xs(a) goto 19
next a
if L=19 goto fin
20 xs(20)=int(ran(L))+1
for a=1 to 19
if xs(20)=xs(a) goto 20
next a
if L=20 goto fin
21 xs(21)=int(ran(L))+1
for a=1 to 20
if xs(21)=xs(a) goto 21
next a
if L=21 goto fin
22 xs(22)=int(ran(L))+1
for a=1 to 21
if xs(22)=xs(a) goto 22
next a
if L=22 goto fin
23 xs(23)=int(ran(L))+1
for a=1 to 22
if xs(23)=xs(a) goto 23
next a
if L=23 goto fin
24 xs(24)=int(ran(L))+1
for a=1 to 23
if xs(24)=xs(a) goto 24
next a
if L=24 goto fin
25 xs(25)=int(ran(L))+1
for a=1 to 24
if xs(25)=xs(a) goto 25
next a
if L=25 goto fin
26 xs(26)=int(ran(L))+1
for a=1 to 25
if xs(26)=xs(a) goto 26
next a
if L=26 goto fin
endif
label fin
setrgb 1,0,0,0
text xm(a)*15+cen,ym(a),mid$(a$,a,1)
next a
until (1=0)


[rain_storm]

It still uses IF statements.

Not any more it doesn't

Code: [Select]

open window 640,512
a$="DBFINTERACTIVEISTHETOPS"
L=len(a$)
cen=(640-(L*15))/2
speed=1 rem 2 is fast
dim xm(26),xs(26),ym(26)
for a=1 to 26
xs(a)=a
xm(a)=a
ym(a)=230
text xm(a)*15+cen,ym(a),mid$(a$,a,1)
next a
repeat
setdrawbuf vm
vm=1-vm
setdispbuf vm
clear window
setrgb 1,256,256,0
fill rectangle 0,0 to 640,512
D=peek("port1")
go=go+1
if go>20 go=20
for a=1 to 26
if speed=1 then
if xm(a)>xs(a) then
xm(a)=xm(a)-0.25
ym(a)=ym(a)-5
if ym(a)<222 ym(a)=222
if xm(a)=xs(a) ym(a)=230
endif
if xm(a)<xs(a) then
xm(a)=xm(a)+0.25
ym(a)=ym(a)+5
if ym(a)>238 ym(a)=238
if xm(a)=xs(a) ym(a)=230
endif
endif
if speed=2 xm(a)=xs(a)
if and(D,16384)>0 and go=20 then
go=0

for l = 0 to L
0 xs(l) = int(ran(L))+1
  for a=0 to l
    if (a <> l) and (xs(l) = xs(a)) goto 0
  next a
next l
goto fin
endif

label fin
setrgb 1,0,0,0
text xm(a)*15+cen,ym(a),mid$(a$,a,1)
next a
until (1=0)


[bikemadness]

Wow! Thanks.
Do you know how long it would have taken me to see that! (if at all.)
It took me ages to shorten my first version.
And I would still need to see it that way to understand it in future.
I use this as a tool all the time.
Had to write my own, since I couldn't find a version.