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69 lines
1.2 KiB
Batchfile
69 lines
1.2 KiB
Batchfile
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## blindmaz.cmd -- solve maze by walking a left-handed blind mouse
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#7 set $seed
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execute-file maze.cmd
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#execute-file floodmaz.cmd
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set %x 2
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set %y $curline
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end-of-line
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set %stopcol &sub $curcol 1
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set %DX0 1
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set %DY0 0
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set %DX1 0
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set %DY1 1
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set %DX2 -1
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set %DY2 0
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set %DX3 0
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set %DY3 -1
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set %dotc &asc "."
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12 store-macro
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set %OX &ind &cat "%DX" %nD
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set %OY &ind &cat "%DY" %nD
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set %nx &add %x %OX
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set %ny &add %y %OY
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set $curline %ny
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set $curcol %nx
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!if &or &equ $curchar 32 &equ $curchar %dotc
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!if &equ $curchar 32
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set %C %dotc
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!else
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set %C &asc " " # erase when backtracking (or highlight)
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!endif
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set %D %nD
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set $curchar %C
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set $curline %y
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set $curcol %x
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set $curchar %C
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set %x &add %nx %OX
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set %y &add %ny %OY
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set $curline %y
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set $curcol %x
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set %res TRUE
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!else
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set %res FALSE
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!endif
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!endm
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set %D 0 # looking EAST
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!while &les %x %stopcol
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set %nD &mod &add %D 3 4 # Can go left?
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execute-macro-12
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!if &seq %res FALSE
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set %nD %D # Can go straight?
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execute-macro-12
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!if &seq %res FALSE
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set %nD &mod &add %D 1 4 # Can go right?
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execute-macro-12
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!if &seq %res FALSE
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set %D &mod &add %D 2 4 # Go back!
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!endif
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!endif
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!endif
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!endwhile
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beginning-of-file
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set $curline 3
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set $curcol 1
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