Readarrayfromfile: Difference between revisions
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Doom64hunter (talk | contribs) Add note that mentions implicit array resizing. |
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Reads a file into a [[gamearray]]; the [[definequote|quote]] contains the file name. Each array element will contain 4 bytes of file's content. The file is to be previously saved with [[writearraytofile]]. | Reads a file into a [[gamearray]]; the [[definequote|quote]] contains the file name. Each array element will contain 4 bytes of file's content. The file is to be previously saved with [[writearraytofile]]. | ||
Note that this command implicitly resizes the gamearray to exactly equal the size of the file, even if the gamearray was previously defined to be larger than the file that is loaded. | |||
Here's an example of how an array can be accessed byte-wise (in case you are using files which were not created by ''writearraytofile''): | Here's an example of how an array can be accessed byte-wise (in case you are using files which were not created by ''writearraytofile''): |
Revision as of 04:52, 22 January 2020
readarrayfromfile <array name> <quote number>
Reads a file into a gamearray; the quote contains the file name. Each array element will contain 4 bytes of file's content. The file is to be previously saved with writearraytofile.
Note that this command implicitly resizes the gamearray to exactly equal the size of the file, even if the gamearray was previously defined to be larger than the file that is loaded.
Here's an example of how an array can be accessed byte-wise (in case you are using files which were not created by writearraytofile):
gamevar ofs // Byte address gamevar idx // Array index gamevar oct // Byte to select gamevar ret // Value to return redefinequote 256 MYFILE.BIN readarrayfromfile ARRAY[idx] 256 setvarvar idx ofs shiftvarr idx 2 setvarvar oct ofs andvar oct 3 // DWORD to BYTE ptr setvarvar ret ARRAY[idx] ifvarand oct 2 shiftvarr ret 16 ifvarand oct 1 shiftvarr ret 8 andvar ret 255