Seems like our Chef Horst Hummel got impatient and sliced the hourglass cleanly in half..
The 16x16 cursor image is stored as a bitmap like the newspaper images I described in my previous post on graphics and animation in Supernova. The black outline and red filling are rendered seperately, both taking 32 bytes.
I skimmed through my code and could not find a shift that possibly corrupted the cursor data. But how to fix it? Well, it seems the image is split right at 8 pixels and since they are represented by one byte we could just do a wordRoll that swaps its bytes like swapped = (i >> 8) | (i << 8).
Wait a second....
The disassembly shows the critical part for drawing the black outline
lodsw... The first endianess bug in this project that I got stuck on..next_line: lodsw mov cx,dx next_pixel: shl ax,1 jc skip1 mov byte es:[di],0 skip1: inc di loop next_pixel add di,320 sub di,dx dec bh jnz next_line
At least now it's working and I can keep going with more important stuff like actually making it playable and hopefully won't get distracted by those small things again...
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