unhuman Posted March 11, 2018 Share Posted March 11, 2018 Anyone have a good way to convert from bitmask to screen locations? For the game I'm working on (which is finally coming together), I'm using a bitmask.... I'd like to be able to draw something so that if I have a value of 100011001, I'd like to be able to draw characters: * ** *. I'm currently doing this in a loop, checking each bit, but there's got to be a better way.... I'm using XB, but this will be compiled when done. -Howie Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted March 11, 2018 Share Posted March 11, 2018 I wrote a character defining program BITD and I used a 15 element string array indexed by the 8-bit value divided by 16 for the first nybble and the remainder for the second. Like so: B$(0-15) is set as the bit positions " "," *"," * "..."****", N1 and N2 are the nybble values, and B is the byte. Therefore, N1=INT(B/16) N2=B-N1*16 C$=B$(N1)&B$(N2) 2 Quote Link to comment Share on other sites More sharing options...
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