mirror of https://github.com/nmlgc/ReC98.git
29 lines
571 B
NASM
29 lines
571 B
NASM
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; Searches and returns the next free shot slot, or NULL if there are no more
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; free ones.
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; shot_t* shots_add(void);
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public _shots_add
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_shots_add proc near
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xor ax, ax
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@@loop:
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cmp _shot_last_id, SHOT_COUNT
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jnb short @@ret
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mov bx, _shot_ptr
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add _shot_ptr, size shot_t
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cmp [bx+shot_t.flag], 0
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jz short @@found
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inc _shot_last_id
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jmp short @@loop
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@@found:
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mov word ptr [bx+shot_t.flag], 1
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mov eax, player_pos.cur
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mov dword ptr [bx+shot_t.pos.cur], eax
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mov dword ptr [bx+shot_t.pos.velocity], (-12 shl 4) shl 16 or (0)
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mov ax, bx
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@@ret:
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retn
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_shots_add endp
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