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/***********************************************************
* K O U L E S *
*----------------------------------------------------------*
* C1995 JAHUSOFT *
* Jan Hubicka *
* Dukelskych Bojovniku 1944 *
* 390 03 Tabor *
* Czech Republic *
* Phone: 0041-361-32613 *
* eMail: hubicka@limax.paru.cas.cz *
*----------------------------------------------------------*
* Copyright(c)1995,1996 by Jan Hubicka.See README for *
* licence details. *
*----------------------------------------------------------*
* objectsio.c reading/writing possitions of objects-for *
* for network code.... *
***********************************************************/
#ifdef NETSUPPORT
#include "koules.h"
#include "net.h"
#include "client.h"
#include "server.h"
#include <string.h>
#include <math.h>
unsigned char b[256];
unsigned char *buffer;
/* This code is specially optimized to produce very compressed packets
Normal output for 1 frame=50 bytes.. game structure: 16*256=3KB
compression:98.88% :)) */
/*I know...bithacket and ugly bit putting routines... */
#define PUTZERO() (c<<=1,c==256?(c=1,buffer++,*buffer=0):0)
#define GETZERO() (c<<=1,c==256?(c=1,buffer++):0)
#define PUTONE() (*buffer|=c,PUTZERO())
#define PUTBIT(b) (((b)?(*buffer|=c):0),PUTZERO())
#define PUTNUM(b,n) {int co=1; for(;co<(1<<n);co<<=1) PUTBIT(b&co);}
#define GETBIT() (*buffer&c?(GETZERO(),1):(GETZERO(),0))
#define GETNUM(b,n) {int co=1;b=0; for(;co<(1<<n);co<<=1) b|=(GETBIT())?co:0;}
/*Debugging macros... */
/*#define DEBUG */
#ifdef DEBUG
#define Debug(text,num) printf(text,num),fflush(stdout);
#define Debug1(text) printf(text),fflush(stdout);
#else
#define Debug(text,num)
#define Debug1(text)
#endif
extern void accel (int);
/*bit counter */
static int c = 1;
unsigned char *
write_object (unsigned char *buffer, int i)
{
unsigned long x;
PUTBIT (object[i].live);
Debug ("%i:", i);
Debug ("Live:%i ", object[i].live);
if (object[i].live)
{
PUTNUM (object[i].type, 4);
Debug ("Type:%i ", object[i].type);
}
if (i < 5)
{
if (object[i].live)
{
PUTBIT (object[i].thief);
PUTBIT (acceled[i]);
}
PUTNUM (object[i].score, 20);
PUTNUM (object[i].live1, 3);
}
if (object[i].live)
{
if (object[i].lineto == -1)
{
PUTZERO ();
}
else
{
PUTONE ();
PUTNUM (object[i].lineto, 8);
}
Debug ("lineto:%i ", object[i].lineto);
x = object[i].x;
PUTNUM (x, 10);
Debug ("x:%i ", (int) object[i].x);
Debug ("y:%i ", (int) object[i].x);
x = object[i].y;
PUTNUM (x, 9);
}
if (object[i].live && object[i].type == ROCKET)
{
while(object[i].rotation<0) object[i].rotation+=2*M_PI;
while(object[i].rotation>=2*M_PI) object[i].rotation-=2*M_PI;
x = (object[i].rotation * 16.0 / M_PI);
Debug ("Rotation:%i ", x);
PUTNUM (x, 6);
}
if (object[i].live && object[i].type == LBALL)
{
Debug ("Letter:%c ", object[i].letter);
switch (object[i].letter)
{
case L_ACCEL:
PUTNUM (1, 3);
break;
case L_GUMM:
PUTNUM (2, 3);
break;
case L_FINDER:
PUTNUM (3, 3);
break;
case L_THIEF:
PUTNUM (4, 3);
break;
case L_TTOOL:
PUTNUM (5, 3);
break;
default:
printf ("Internal error:unknown letter type!\n");
PUTNUM (1, 3);
break;
}
}
Debug1 ("\n");
return (buffer);
}
unsigned char *
read_object (int i, unsigned char *buffer, int nodata)
{
unsigned long x;
int a = 0;
object[i].live = GETBIT ();
Debug ("%i:", i);
Debug ("Object:%i", object[i].live);
if (object[i].live)
{
GETNUM (object[i].type, 4);
Debug ("Type:%i", object[i].type);
}
if (i < 5)
{
if (object[i].live)
{
object[i].thief = GETBIT ();
a = GETBIT ();
}
GETNUM (object[i].score, 20);
GETNUM (object[i].live1, 3);
}
if (object[i].live)
{
if (GETBIT ())
{
GETNUM (object[i].lineto, 8);
}
else
object[i].lineto = -1;
Debug ("Lineto:%i ", object[i].lineto);
GETNUM (x, 10);
object[i].x = x;
Debug ("x:%i ", (int) object[i].x);
GETNUM (x, 9);
object[i].y = x;
Debug ("y:%i ", (int) object[i].y);
}
if (object[i].live && object[i].type == ROCKET)
{
GETNUM (x, 6);
Debug ("Rotation:%i ", x);
object[i].rotation = (float) x *M_PI / 16.0;
}
if (object[i].live && object[i].type == LBALL)
{
GETNUM (x, 3);
switch (x)
{
case 1:
object[i].letter = L_ACCEL;
break;
case 2:
object[i].letter = L_GUMM;
break;
case 3:
object[i].letter = L_THIEF;
break;
case 4:
object[i].letter = L_FINDER;
break;
case 5:
object[i].letter = L_TTOOL;
break;
default:
object[i].letter = ' ';
printf ("Internal error:unknown letter...maybe newer server than client?\n");
break;
}
Debug ("Letter:%c", object[i].letter);
}
if (a)
{
int n;
for (n = 0; n < nodata; n++)
accel (i);
}
Debug1 ("\n");
return (buffer);
}
int
write_objects (unsigned char *buffer)
{
int i;
unsigned char *buffer1 = buffer;
/*Initialize bit operation routines */
c = 1;
buffer[0] = 0;
/*Optimize number of objects */
nobjects--;
while (object[nobjects].live == 0 && object[nobjects].time == 0)
nobjects--;
nobjects++;
Debug ("%i\n", nobjects);
/*Put number of object at the beggining of packet */
PUTNUM (nobjects, 8);
/*Put all objects */
for (i = 0; i < nobjects; i++)
buffer = write_object (buffer, i);
if (c != 1)
buffer++;
return (buffer - buffer1);
}
int
read_objects (unsigned char *buffer, int nodata)
{
int i;
unsigned char *buffer1 = buffer;
c = 1;
GETNUM (nobjects, 8);
Debug ("%i\n", nobjects);
for (i = 0; i < nobjects; i++)
buffer = read_object (i, buffer, nodata);
for (; i < MAXOBJECT; i++)
object[i].live = 0;
return (buffer - buffer1);
}
#endif
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