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P/+BB3

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

Tape/disk: Home » Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_39.ADF
Filename: P/+BB3
Read OK:
File size: 0BC7 bytes
Load address: 0000
Exec address: FFFFFFFF
Duplicates

There are 2 duplicate copies of this file in the archive:

File contents
[If ball is not in area containing blocks, don't check if its hit one!]

  210 IF yball>80 THEN GOTO 330

[Move ball's position to integer variables for speed. Also set standard
 paint style as this is how blocks are removed]

  220 xb%=xball DIV4:yb%=yball DIV8:PROCsetpaint(0)

[Hit a block above? If so, remove it. This involves painting a black
 square on the screen, and setting in the block array that it has gone!
 Also make ball bounce off downwards...]

  230 IF up AND yb%<>0 THEN IF block(xb%,yb%-1)=0THENup=FALSE:
      block(xb%,yb%-1)=1:?char=6:?xc=xb%:?yc=yb%-1:?xoff=0:?yoff=0:
      CALLdisplay

[Hit block diagonally up and left?]

  240 IF up AND left AND yb%<>0 AND xb%<>0 THEN IF block(xb%-1,yb%-1)=0
      THENup=FALSE:left=FALSE:block(xb%-1,yb%-1)=1:?char=6:?xc=xb%-1:
      ?yc=yb%-1:?xoff=0:?yoff=0:CALLdisplay

[Hit block diagonally up and right?]

  250 IF up AND (NOT left) AND yb%<>0 AND xb%<19 THEN IF
      block(xb%+1,yb%-1)=0THENup=FALSE:left=TRUE:block(xb%+1,yb%-1)=1:
      ?char=6:?xc=xb%+1:?yc=yb%-1:?xoff=0:?yoff=0:CALLdisplay

[Hit block down below ball?]

  260 IF NOT up AND yb%<9 THEN IF block(xb%,yb%+1)=0THENup=TRUE:
      block(xb%,yb%+1)=1:?char=6:?xc=xb%:?yc=yb%+1:?xoff=0:?yoff=0:
      CALLdisplay

[Hit block diagonally below and left?]

  270 IF (NOT up) AND left AND xb%<>0 AND yb%<9 THEN IF
      block(xb%-1,yb%+1)=0 THENup=TRUE:left=FALSE:block(xb%-1,yb%+1)=1:
      ?char=6:?xc=xb%-1:?yc=yb%+1:?xoff=0:?yoff=0:CALLdisplay

[Hit block diagonally below and right?]

  280 IF (NOT up) AND (NOT left) AND xb%<19 AND yb%<9 THEN IF
      block(xb%+1,yb%+1)=0THENup=TRUE:left=TRUE:block(xb%+1,yb%+1)=1:
      ?char=6:?xc=xb%+1:?yc=yb%+1:?xoff=0:?yoff=0:CALLdisplay

[If we are in row 10, we don't have to check blocks left or right, so
 we can skip these checks]

  290 IF yb%>9 THEN GOTO 320

[Hit block to left?]

  300 IF left AND xb%<>0 THEN IF block(xb%-1,yb%)=0THENleft=FALSE:
      block(xb%-1,yb%)=1:?char=6:?xc=xb%-1:?yc=yb%:?xoff=0:?yoff=0:
      CALLdisplay

[Hit block to right?]

  310 IF NOT left AND xb%<19 THEN IF block(xb%+1,yb%)=0THENleft=TRUE:
      block(xb%+1,yb%)=1:?char=6:?xc=xb%+1:?yc=yb%:?xoff=0:?yoff=0:
      CALLdisplay

[Now that we've got block-hitting out of the way, we can go back to
 the EOR paint style, as thats how the bat and ball are drawn]

  320 PROCsetpaint(3)

[Is bat moving left?]

  330 xnew=-1:IF INKEY(-98) AND xbat<>0 THEN xnew=xbat-0.5

[Is bat moving right?]

  340 IF INKEY(-67) AND xbat<>18 THEN xnew=xbat+0.5

[Has bat moved at all? If xnew is still -1, the value it was set to
 in 330, clearly not!]

  350 IF xnew=-1 THEN UNTIL FALSE

[Remove old bat, which is two sprites wide]

  360 ?char=4:?xc=INT(xbat):?yc=30:?xoff=(xbat*4)AND2:?yoff=0:
      CALLdisplay:?xc=?xc+1:?char=5:CALLdisplay

[Draw new bat]

  370 xbat=xnew
  380 ?char=4:?xc=INT(xbat):?xoff=(xbat*4)AND2:CALLdisplay:?xc=?xc+1:
      ?char=5:CALLdisplay

[That's it - we're done! Go round the whole loop again...]

  390 UNTIL FALSE
  400 END
00000000  5b 49 66 20 62 61 6c 6c  20 69 73 20 6e 6f 74 20  |[If ball is not |
00000010  69 6e 20 61 72 65 61 20  63 6f 6e 74 61 69 6e 69  |in area containi|
00000020  6e 67 20 62 6c 6f 63 6b  73 2c 20 64 6f 6e 27 74  |ng blocks, don't|
00000030  20 63 68 65 63 6b 20 69  66 20 69 74 73 20 68 69  | check if its hi|
00000040  74 20 6f 6e 65 21 5d 0d  0d 20 20 32 31 30 20 49  |t one!]..  210 I|
00000050  46 20 79 62 61 6c 6c 3e  38 30 20 54 48 45 4e 20  |F yball>80 THEN |
00000060  47 4f 54 4f 20 33 33 30  0d 0d 5b 4d 6f 76 65 20  |GOTO 330..[Move |
00000070  62 61 6c 6c 27 73 20 70  6f 73 69 74 69 6f 6e 20  |ball's position |
00000080  74 6f 20 69 6e 74 65 67  65 72 20 76 61 72 69 61  |to integer varia|
00000090  62 6c 65 73 20 66 6f 72  20 73 70 65 65 64 2e 20  |bles for speed. |
000000a0  41 6c 73 6f 20 73 65 74  20 73 74 61 6e 64 61 72  |Also set standar|
000000b0  64 0d 20 70 61 69 6e 74  20 73 74 79 6c 65 20 61  |d. paint style a|
000000c0  73 20 74 68 69 73 20 69  73 20 68 6f 77 20 62 6c  |s this is how bl|
000000d0  6f 63 6b 73 20 61 72 65  20 72 65 6d 6f 76 65 64  |ocks are removed|
000000e0  5d 0d 0d 20 20 32 32 30  20 78 62 25 3d 78 62 61  |]..  220 xb%=xba|
000000f0  6c 6c 20 44 49 56 34 3a  79 62 25 3d 79 62 61 6c  |ll DIV4:yb%=ybal|
00000100  6c 20 44 49 56 38 3a 50  52 4f 43 73 65 74 70 61  |l DIV8:PROCsetpa|
00000110  69 6e 74 28 30 29 0d 0d  5b 48 69 74 20 61 20 62  |int(0)..[Hit a b|
00000120  6c 6f 63 6b 20 61 62 6f  76 65 3f 20 49 66 20 73  |lock above? If s|
00000130  6f 2c 20 72 65 6d 6f 76  65 20 69 74 2e 20 54 68  |o, remove it. Th|
00000140  69 73 20 69 6e 76 6f 6c  76 65 73 20 70 61 69 6e  |is involves pain|
00000150  74 69 6e 67 20 61 20 62  6c 61 63 6b 0d 20 73 71  |ting a black. sq|
00000160  75 61 72 65 20 6f 6e 20  74 68 65 20 73 63 72 65  |uare on the scre|
00000170  65 6e 2c 20 61 6e 64 20  73 65 74 74 69 6e 67 20  |en, and setting |
00000180  69 6e 20 74 68 65 20 62  6c 6f 63 6b 20 61 72 72  |in the block arr|
00000190  61 79 20 74 68 61 74 20  69 74 20 68 61 73 20 67  |ay that it has g|
000001a0  6f 6e 65 21 0d 20 41 6c  73 6f 20 6d 61 6b 65 20  |one!. Also make |
000001b0  62 61 6c 6c 20 62 6f 75  6e 63 65 20 6f 66 66 20  |ball bounce off |
000001c0  64 6f 77 6e 77 61 72 64  73 2e 2e 2e 5d 0d 0d 20  |downwards...].. |
000001d0  20 32 33 30 20 49 46 20  75 70 20 41 4e 44 20 79  | 230 IF up AND y|
000001e0  62 25 3c 3e 30 20 54 48  45 4e 20 49 46 20 62 6c  |b%<>0 THEN IF bl|
000001f0  6f 63 6b 28 78 62 25 2c  79 62 25 2d 31 29 3d 30  |ock(xb%,yb%-1)=0|
00000200  54 48 45 4e 75 70 3d 46  41 4c 53 45 3a 0d 20 20  |THENup=FALSE:.  |
00000210  20 20 20 20 62 6c 6f 63  6b 28 78 62 25 2c 79 62  |    block(xb%,yb|
00000220  25 2d 31 29 3d 31 3a 3f  63 68 61 72 3d 36 3a 3f  |%-1)=1:?char=6:?|
00000230  78 63 3d 78 62 25 3a 3f  79 63 3d 79 62 25 2d 31  |xc=xb%:?yc=yb%-1|
00000240  3a 3f 78 6f 66 66 3d 30  3a 3f 79 6f 66 66 3d 30  |:?xoff=0:?yoff=0|
00000250  3a 0d 20 20 20 20 20 20  43 41 4c 4c 64 69 73 70  |:.      CALLdisp|
00000260  6c 61 79 0d 0d 5b 48 69  74 20 62 6c 6f 63 6b 20  |lay..[Hit block |
00000270  64 69 61 67 6f 6e 61 6c  6c 79 20 75 70 20 61 6e  |diagonally up an|
00000280  64 20 6c 65 66 74 3f 5d  0d 0d 20 20 32 34 30 20  |d left?]..  240 |
00000290  49 46 20 75 70 20 41 4e  44 20 6c 65 66 74 20 41  |IF up AND left A|
000002a0  4e 44 20 79 62 25 3c 3e  30 20 41 4e 44 20 78 62  |ND yb%<>0 AND xb|
000002b0  25 3c 3e 30 20 54 48 45  4e 20 49 46 20 62 6c 6f  |%<>0 THEN IF blo|
000002c0  63 6b 28 78 62 25 2d 31  2c 79 62 25 2d 31 29 3d  |ck(xb%-1,yb%-1)=|
000002d0  30 0d 20 20 20 20 20 20  54 48 45 4e 75 70 3d 46  |0.      THENup=F|
000002e0  41 4c 53 45 3a 6c 65 66  74 3d 46 41 4c 53 45 3a  |ALSE:left=FALSE:|
000002f0  62 6c 6f 63 6b 28 78 62  25 2d 31 2c 79 62 25 2d  |block(xb%-1,yb%-|
00000300  31 29 3d 31 3a 3f 63 68  61 72 3d 36 3a 3f 78 63  |1)=1:?char=6:?xc|
00000310  3d 78 62 25 2d 31 3a 0d  20 20 20 20 20 20 3f 79  |=xb%-1:.      ?y|
00000320  63 3d 79 62 25 2d 31 3a  3f 78 6f 66 66 3d 30 3a  |c=yb%-1:?xoff=0:|
00000330  3f 79 6f 66 66 3d 30 3a  43 41 4c 4c 64 69 73 70  |?yoff=0:CALLdisp|
00000340  6c 61 79 0d 0d 5b 48 69  74 20 62 6c 6f 63 6b 20  |lay..[Hit block |
00000350  64 69 61 67 6f 6e 61 6c  6c 79 20 75 70 20 61 6e  |diagonally up an|
00000360  64 20 72 69 67 68 74 3f  5d 0d 0d 20 20 32 35 30  |d right?]..  250|
00000370  20 49 46 20 75 70 20 41  4e 44 20 28 4e 4f 54 20  | IF up AND (NOT |
00000380  6c 65 66 74 29 20 41 4e  44 20 79 62 25 3c 3e 30  |left) AND yb%<>0|
00000390  20 41 4e 44 20 78 62 25  3c 31 39 20 54 48 45 4e  | AND xb%<19 THEN|
000003a0  20 49 46 0d 20 20 20 20  20 20 62 6c 6f 63 6b 28  | IF.      block(|
000003b0  78 62 25 2b 31 2c 79 62  25 2d 31 29 3d 30 54 48  |xb%+1,yb%-1)=0TH|
000003c0  45 4e 75 70 3d 46 41 4c  53 45 3a 6c 65 66 74 3d  |ENup=FALSE:left=|
000003d0  54 52 55 45 3a 62 6c 6f  63 6b 28 78 62 25 2b 31  |TRUE:block(xb%+1|
000003e0  2c 79 62 25 2d 31 29 3d  31 3a 0d 20 20 20 20 20  |,yb%-1)=1:.     |
000003f0  20 3f 63 68 61 72 3d 36  3a 3f 78 63 3d 78 62 25  | ?char=6:?xc=xb%|
00000400  2b 31 3a 3f 79 63 3d 79  62 25 2d 31 3a 3f 78 6f  |+1:?yc=yb%-1:?xo|
00000410  66 66 3d 30 3a 3f 79 6f  66 66 3d 30 3a 43 41 4c  |ff=0:?yoff=0:CAL|
00000420  4c 64 69 73 70 6c 61 79  0d 0d 5b 48 69 74 20 62  |Ldisplay..[Hit b|
00000430  6c 6f 63 6b 20 64 6f 77  6e 20 62 65 6c 6f 77 20  |lock down below |
00000440  62 61 6c 6c 3f 5d 0d 0d  20 20 32 36 30 20 49 46  |ball?]..  260 IF|
00000450  20 4e 4f 54 20 75 70 20  41 4e 44 20 79 62 25 3c  | NOT up AND yb%<|
00000460  39 20 54 48 45 4e 20 49  46 20 62 6c 6f 63 6b 28  |9 THEN IF block(|
00000470  78 62 25 2c 79 62 25 2b  31 29 3d 30 54 48 45 4e  |xb%,yb%+1)=0THEN|
00000480  75 70 3d 54 52 55 45 3a  0d 20 20 20 20 20 20 62  |up=TRUE:.      b|
00000490  6c 6f 63 6b 28 78 62 25  2c 79 62 25 2b 31 29 3d  |lock(xb%,yb%+1)=|
000004a0  31 3a 3f 63 68 61 72 3d  36 3a 3f 78 63 3d 78 62  |1:?char=6:?xc=xb|
000004b0  25 3a 3f 79 63 3d 79 62  25 2b 31 3a 3f 78 6f 66  |%:?yc=yb%+1:?xof|
000004c0  66 3d 30 3a 3f 79 6f 66  66 3d 30 3a 0d 20 20 20  |f=0:?yoff=0:.   |
000004d0  20 20 20 43 41 4c 4c 64  69 73 70 6c 61 79 0d 0d  |   CALLdisplay..|
000004e0  5b 48 69 74 20 62 6c 6f  63 6b 20 64 69 61 67 6f  |[Hit block diago|
000004f0  6e 61 6c 6c 79 20 62 65  6c 6f 77 20 61 6e 64 20  |nally below and |
00000500  6c 65 66 74 3f 5d 0d 0d  20 20 32 37 30 20 49 46  |left?]..  270 IF|
00000510  20 28 4e 4f 54 20 75 70  29 20 41 4e 44 20 6c 65  | (NOT up) AND le|
00000520  66 74 20 41 4e 44 20 78  62 25 3c 3e 30 20 41 4e  |ft AND xb%<>0 AN|
00000530  44 20 79 62 25 3c 39 20  54 48 45 4e 20 49 46 0d  |D yb%<9 THEN IF.|
00000540  20 20 20 20 20 20 62 6c  6f 63 6b 28 78 62 25 2d  |      block(xb%-|
00000550  31 2c 79 62 25 2b 31 29  3d 30 20 54 48 45 4e 75  |1,yb%+1)=0 THENu|
00000560  70 3d 54 52 55 45 3a 6c  65 66 74 3d 46 41 4c 53  |p=TRUE:left=FALS|
00000570  45 3a 62 6c 6f 63 6b 28  78 62 25 2d 31 2c 79 62  |E:block(xb%-1,yb|
00000580  25 2b 31 29 3d 31 3a 0d  20 20 20 20 20 20 3f 63  |%+1)=1:.      ?c|
00000590  68 61 72 3d 36 3a 3f 78  63 3d 78 62 25 2d 31 3a  |har=6:?xc=xb%-1:|
000005a0  3f 79 63 3d 79 62 25 2b  31 3a 3f 78 6f 66 66 3d  |?yc=yb%+1:?xoff=|
000005b0  30 3a 3f 79 6f 66 66 3d  30 3a 43 41 4c 4c 64 69  |0:?yoff=0:CALLdi|
000005c0  73 70 6c 61 79 0d 0d 5b  48 69 74 20 62 6c 6f 63  |splay..[Hit bloc|
000005d0  6b 20 64 69 61 67 6f 6e  61 6c 6c 79 20 62 65 6c  |k diagonally bel|
000005e0  6f 77 20 61 6e 64 20 72  69 67 68 74 3f 5d 0d 0d  |ow and right?]..|
000005f0  20 20 32 38 30 20 49 46  20 28 4e 4f 54 20 75 70  |  280 IF (NOT up|
00000600  29 20 41 4e 44 20 28 4e  4f 54 20 6c 65 66 74 29  |) AND (NOT left)|
00000610  20 41 4e 44 20 78 62 25  3c 31 39 20 41 4e 44 20  | AND xb%<19 AND |
00000620  79 62 25 3c 39 20 54 48  45 4e 20 49 46 0d 20 20  |yb%<9 THEN IF.  |
00000630  20 20 20 20 62 6c 6f 63  6b 28 78 62 25 2b 31 2c  |    block(xb%+1,|
00000640  79 62 25 2b 31 29 3d 30  54 48 45 4e 75 70 3d 54  |yb%+1)=0THENup=T|
00000650  52 55 45 3a 6c 65 66 74  3d 54 52 55 45 3a 62 6c  |RUE:left=TRUE:bl|
00000660  6f 63 6b 28 78 62 25 2b  31 2c 79 62 25 2b 31 29  |ock(xb%+1,yb%+1)|
00000670  3d 31 3a 0d 20 20 20 20  20 20 3f 63 68 61 72 3d  |=1:.      ?char=|
00000680  36 3a 3f 78 63 3d 78 62  25 2b 31 3a 3f 79 63 3d  |6:?xc=xb%+1:?yc=|
00000690  79 62 25 2b 31 3a 3f 78  6f 66 66 3d 30 3a 3f 79  |yb%+1:?xoff=0:?y|
000006a0  6f 66 66 3d 30 3a 43 41  4c 4c 64 69 73 70 6c 61  |off=0:CALLdispla|
000006b0  79 0d 0d 5b 49 66 20 77  65 20 61 72 65 20 69 6e  |y..[If we are in|
000006c0  20 72 6f 77 20 31 30 2c  20 77 65 20 64 6f 6e 27  | row 10, we don'|
000006d0  74 20 68 61 76 65 20 74  6f 20 63 68 65 63 6b 20  |t have to check |
000006e0  62 6c 6f 63 6b 73 20 6c  65 66 74 20 6f 72 20 72  |blocks left or r|
000006f0  69 67 68 74 2c 20 73 6f  0d 20 77 65 20 63 61 6e  |ight, so. we can|
00000700  20 73 6b 69 70 20 74 68  65 73 65 20 63 68 65 63  | skip these chec|
00000710  6b 73 5d 0d 0d 20 20 32  39 30 20 49 46 20 79 62  |ks]..  290 IF yb|
00000720  25 3e 39 20 54 48 45 4e  20 47 4f 54 4f 20 33 32  |%>9 THEN GOTO 32|
00000730  30 0d 0d 5b 48 69 74 20  62 6c 6f 63 6b 20 74 6f  |0..[Hit block to|
00000740  20 6c 65 66 74 3f 5d 0d  0d 20 20 33 30 30 20 49  | left?]..  300 I|
00000750  46 20 6c 65 66 74 20 41  4e 44 20 78 62 25 3c 3e  |F left AND xb%<>|
00000760  30 20 54 48 45 4e 20 49  46 20 62 6c 6f 63 6b 28  |0 THEN IF block(|
00000770  78 62 25 2d 31 2c 79 62  25 29 3d 30 54 48 45 4e  |xb%-1,yb%)=0THEN|
00000780  6c 65 66 74 3d 46 41 4c  53 45 3a 0d 20 20 20 20  |left=FALSE:.    |
00000790  20 20 62 6c 6f 63 6b 28  78 62 25 2d 31 2c 79 62  |  block(xb%-1,yb|
000007a0  25 29 3d 31 3a 3f 63 68  61 72 3d 36 3a 3f 78 63  |%)=1:?char=6:?xc|
000007b0  3d 78 62 25 2d 31 3a 3f  79 63 3d 79 62 25 3a 3f  |=xb%-1:?yc=yb%:?|
000007c0  78 6f 66 66 3d 30 3a 3f  79 6f 66 66 3d 30 3a 0d  |xoff=0:?yoff=0:.|
000007d0  20 20 20 20 20 20 43 41  4c 4c 64 69 73 70 6c 61  |      CALLdispla|
000007e0  79 0d 0d 5b 48 69 74 20  62 6c 6f 63 6b 20 74 6f  |y..[Hit block to|
000007f0  20 72 69 67 68 74 3f 5d  0d 0d 20 20 33 31 30 20  | right?]..  310 |
00000800  49 46 20 4e 4f 54 20 6c  65 66 74 20 41 4e 44 20  |IF NOT left AND |
00000810  78 62 25 3c 31 39 20 54  48 45 4e 20 49 46 20 62  |xb%<19 THEN IF b|
00000820  6c 6f 63 6b 28 78 62 25  2b 31 2c 79 62 25 29 3d  |lock(xb%+1,yb%)=|
00000830  30 54 48 45 4e 6c 65 66  74 3d 54 52 55 45 3a 0d  |0THENleft=TRUE:.|
00000840  20 20 20 20 20 20 62 6c  6f 63 6b 28 78 62 25 2b  |      block(xb%+|
00000850  31 2c 79 62 25 29 3d 31  3a 3f 63 68 61 72 3d 36  |1,yb%)=1:?char=6|
00000860  3a 3f 78 63 3d 78 62 25  2b 31 3a 3f 79 63 3d 79  |:?xc=xb%+1:?yc=y|
00000870  62 25 3a 3f 78 6f 66 66  3d 30 3a 3f 79 6f 66 66  |b%:?xoff=0:?yoff|
00000880  3d 30 3a 0d 20 20 20 20  20 20 43 41 4c 4c 64 69  |=0:.      CALLdi|
00000890  73 70 6c 61 79 0d 0d 5b  4e 6f 77 20 74 68 61 74  |splay..[Now that|
000008a0  20 77 65 27 76 65 20 67  6f 74 20 62 6c 6f 63 6b  | we've got block|
000008b0  2d 68 69 74 74 69 6e 67  20 6f 75 74 20 6f 66 20  |-hitting out of |
000008c0  74 68 65 20 77 61 79 2c  20 77 65 20 63 61 6e 20  |the way, we can |
000008d0  67 6f 20 62 61 63 6b 20  74 6f 0d 20 74 68 65 20  |go back to. the |
000008e0  45 4f 52 20 70 61 69 6e  74 20 73 74 79 6c 65 2c  |EOR paint style,|
000008f0  20 61 73 20 74 68 61 74  73 20 68 6f 77 20 74 68  | as thats how th|
00000900  65 20 62 61 74 20 61 6e  64 20 62 61 6c 6c 20 61  |e bat and ball a|
00000910  72 65 20 64 72 61 77 6e  5d 0d 0d 20 20 33 32 30  |re drawn]..  320|
00000920  20 50 52 4f 43 73 65 74  70 61 69 6e 74 28 33 29  | PROCsetpaint(3)|
00000930  0d 0d 5b 49 73 20 62 61  74 20 6d 6f 76 69 6e 67  |..[Is bat moving|
00000940  20 6c 65 66 74 3f 5d 0d  0d 20 20 33 33 30 20 78  | left?]..  330 x|
00000950  6e 65 77 3d 2d 31 3a 49  46 20 49 4e 4b 45 59 28  |new=-1:IF INKEY(|
00000960  2d 39 38 29 20 41 4e 44  20 78 62 61 74 3c 3e 30  |-98) AND xbat<>0|
00000970  20 54 48 45 4e 20 78 6e  65 77 3d 78 62 61 74 2d  | THEN xnew=xbat-|
00000980  30 2e 35 0d 0d 5b 49 73  20 62 61 74 20 6d 6f 76  |0.5..[Is bat mov|
00000990  69 6e 67 20 72 69 67 68  74 3f 5d 0d 0d 20 20 33  |ing right?]..  3|
000009a0  34 30 20 49 46 20 49 4e  4b 45 59 28 2d 36 37 29  |40 IF INKEY(-67)|
000009b0  20 41 4e 44 20 78 62 61  74 3c 3e 31 38 20 54 48  | AND xbat<>18 TH|
000009c0  45 4e 20 78 6e 65 77 3d  78 62 61 74 2b 30 2e 35  |EN xnew=xbat+0.5|
000009d0  0d 0d 5b 48 61 73 20 62  61 74 20 6d 6f 76 65 64  |..[Has bat moved|
000009e0  20 61 74 20 61 6c 6c 3f  20 49 66 20 78 6e 65 77  | at all? If xnew|
000009f0  20 69 73 20 73 74 69 6c  6c 20 2d 31 2c 20 74 68  | is still -1, th|
00000a00  65 20 76 61 6c 75 65 20  69 74 20 77 61 73 20 73  |e value it was s|
00000a10  65 74 20 74 6f 0d 20 69  6e 20 33 33 30 2c 20 63  |et to. in 330, c|
00000a20  6c 65 61 72 6c 79 20 6e  6f 74 21 5d 0d 0d 20 20  |learly not!]..  |
00000a30  33 35 30 20 49 46 20 78  6e 65 77 3d 2d 31 20 54  |350 IF xnew=-1 T|
00000a40  48 45 4e 20 55 4e 54 49  4c 20 46 41 4c 53 45 0d  |HEN UNTIL FALSE.|
00000a50  0d 5b 52 65 6d 6f 76 65  20 6f 6c 64 20 62 61 74  |.[Remove old bat|
00000a60  2c 20 77 68 69 63 68 20  69 73 20 74 77 6f 20 73  |, which is two s|
00000a70  70 72 69 74 65 73 20 77  69 64 65 5d 0d 0d 20 20  |prites wide]..  |
00000a80  33 36 30 20 3f 63 68 61  72 3d 34 3a 3f 78 63 3d  |360 ?char=4:?xc=|
00000a90  49 4e 54 28 78 62 61 74  29 3a 3f 79 63 3d 33 30  |INT(xbat):?yc=30|
00000aa0  3a 3f 78 6f 66 66 3d 28  78 62 61 74 2a 34 29 41  |:?xoff=(xbat*4)A|
00000ab0  4e 44 32 3a 3f 79 6f 66  66 3d 30 3a 0d 20 20 20  |ND2:?yoff=0:.   |
00000ac0  20 20 20 43 41 4c 4c 64  69 73 70 6c 61 79 3a 3f  |   CALLdisplay:?|
00000ad0  78 63 3d 3f 78 63 2b 31  3a 3f 63 68 61 72 3d 35  |xc=?xc+1:?char=5|
00000ae0  3a 43 41 4c 4c 64 69 73  70 6c 61 79 0d 0d 5b 44  |:CALLdisplay..[D|
00000af0  72 61 77 20 6e 65 77 20  62 61 74 5d 0d 0d 20 20  |raw new bat]..  |
00000b00  33 37 30 20 78 62 61 74  3d 78 6e 65 77 0d 20 20  |370 xbat=xnew.  |
00000b10  33 38 30 20 3f 63 68 61  72 3d 34 3a 3f 78 63 3d  |380 ?char=4:?xc=|
00000b20  49 4e 54 28 78 62 61 74  29 3a 3f 78 6f 66 66 3d  |INT(xbat):?xoff=|
00000b30  28 78 62 61 74 2a 34 29  41 4e 44 32 3a 43 41 4c  |(xbat*4)AND2:CAL|
00000b40  4c 64 69 73 70 6c 61 79  3a 3f 78 63 3d 3f 78 63  |Ldisplay:?xc=?xc|
00000b50  2b 31 3a 0d 20 20 20 20  20 20 3f 63 68 61 72 3d  |+1:.      ?char=|
00000b60  35 3a 43 41 4c 4c 64 69  73 70 6c 61 79 0d 0d 5b  |5:CALLdisplay..[|
00000b70  54 68 61 74 27 73 20 69  74 20 2d 20 77 65 27 72  |That's it - we'r|
00000b80  65 20 64 6f 6e 65 21 20  47 6f 20 72 6f 75 6e 64  |e done! Go round|
00000b90  20 74 68 65 20 77 68 6f  6c 65 20 6c 6f 6f 70 20  | the whole loop |
00000ba0  61 67 61 69 6e 2e 2e 2e  5d 0d 0d 20 20 33 39 30  |again...]..  390|
00000bb0  20 55 4e 54 49 4c 20 46  41 4c 53 45 0d 20 20 34  | UNTIL FALSE.  4|
00000bc0  30 30 20 45 4e 44 0d                              |00 END.|
00000bc7
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