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#ifndef lint |
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static const char RCSid[] = "$Id: subr.c,v 1.2 2003/11/15 02:13:37 schorsch Exp $"; |
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#endif |
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|
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#include <stdio.h> |
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|
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#include "local4014.h" |
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#include "lib4014.h" |
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|
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float obotx = 0.; |
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float oboty = 0.; |
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float botx = 0.; |
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float boty = 0.; |
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float scalex = 1.; |
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float scaley = 1.; |
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int scaleflag; |
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|
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int oloy = -1; |
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int ohiy = -1; |
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int ohix = -1; |
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int oextra = -1; |
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|
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extern void |
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cont( |
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int x, |
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int y |
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) |
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{ |
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int hix,hiy,lox,loy,extra; |
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int n; |
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x = (x-obotx)*scalex + botx; |
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y = (y-oboty)*scaley + boty; |
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hix=(x>>7) & 037; |
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hiy=(y>>7) & 037; |
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lox = (x>>2)&037; |
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loy=(y>>2)&037; |
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extra=x&(03+(y<<2))&014; |
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n = (abs(hix-ohix) + abs(hiy-ohiy) + 6) / 12; |
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if(hiy != ohiy){ |
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putch(hiy|040); |
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ohiy=hiy; |
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} |
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if(hix != ohix){ |
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if(extra != oextra){ |
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putch(extra|0140); |
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oextra=extra; |
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} |
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putch(loy|0140); |
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putch(hix|040); |
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ohix=hix; |
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oloy=loy; |
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} |
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else{ |
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if(extra != oextra){ |
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putch(extra|0140); |
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putch(loy|0140); |
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oextra=extra; |
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oloy=loy; |
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} |
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else if(loy != oloy){ |
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putch(loy|0140); |
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oloy=loy; |
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} |
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} |
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putch(lox|0100); |
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while(n--) |
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putch(0); |
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} |
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|
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extern void |
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putch( |
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int c |
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) |
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{ |
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putc(c,stdout); |
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} |
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