Gered
62af8575c6
- rename standard integer types to a more familiar (u)int(8/16/32) - many function/struct renames. i don't _really_ know if what i've done for this is better, but it "feels" better to me. many draw/blit function names are shorter which is nice, at least. kinda important to me because i develop this on a real DOS machine in 80x50 text mode. - add 'extern "C"' blocks to headers for C++ compiler usage - draw/pixel color value arguments for functions should all have been changed to be uint8 instead of a full 32-bit int. feels right, but maybe should've left alone... - small fix to keyboard handler. noticed a problem on one thinkpad laptop. was a result of what i think was a typo in a constant value used during the part of the interrupt handler that tells the keyboard controller the key event was processed - fix uncommon potential crash function return in draw_filled_rect - renamed low-level "direct" assembly functions to "lowlevel_xxx" to be a little bit more explicit about what they are - add some convenience event helper functions for determining event types - add fixed point atan2 - fixed some tabs/spaces inconsistences (should all be spaces now?) - maybe some other minor things i've forgotten
28 lines
557 B
C
Executable file
28 lines
557 B
C
Executable file
#include "helpers.h"
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#include <conio.h>
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#include <dos.h>
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#include <stdio.h>
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void clrscr(unsigned char attr) {
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union REGS r;
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r.h.ah = 6;
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r.h.al = 0; // 0 = clear
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r.h.ch = 0; // y1
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r.h.cl = 0; // x1
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r.h.dh = 24; // y2
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r.h.dl = 79; // x2
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r.h.bh = attr; // attr (char + color) to fill with
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int386(0x10, &r, &r);
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gotoxy(0, 0);
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}
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void gotoxy(int x, int y) {
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union REGS r;
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r.h.ah = 2;
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r.h.bh = 0;
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r.h.dh = y;
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r.h.dl = x;
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int386(0x10, &r, &r);
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}
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