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/*
* follower bot
* written and copyrights: roderick@ksu.ksu.edu (Mike Roderick)
*/
#include "netmaze.h"
#include <math.h>
#define PI 3.141592
extern struct shared_struct *sm;
/*******************
* the init_robot is called one time right after the start
*/
void init_robot(void)
{
strcpy(sm->ownname,"Follower2");
strcpy(sm->owncomment,"Look Behind You");
}
void start_robot(void)
{
printf("Here We Go Again\n");
printf("The number of players in this game is: %d\n",sm->anzplayers);
}
/*******************
* the own_action is called every 'beat'
*
* this bot really is a dummy, I use this guy
* to test my program with 31 'players'.
*/
int own_action(void)
{
int ret=0;
int chase;
static int prtcntr = 0;
int me;
int angle;
int mangle;
int mag,dir;
int updown;
int shot;
me = sm->shownumber;
if(sm->playfeld[me].fitness < 800)
updown = JOY_DOWN;
else
updown = JOY_UP;
mangle = sm->playfeld[me].winkel; /* get my angle */
chase = whos_close(me); /* who should I chase */
if (chase == -1)
return 0;
angle = what_ang(chase , me); /* what is the target's agnle */
if((sm->playfeld[me].fitness<800)&&sm->playfeld[me].team!=sm->playfeld[chase].team)
updown = JOY_DOWN;
else
updown = JOY_UP;
if (!(abs(angle-mangle)<6) || sm->playfeld[me].team == sm->playfeld[chase].team)
shot = 0; /* hold your fire */
else
shot = JOY_BUTTON; /* shoot them */
dir = angle - mangle;
mag = abs(dir);
if (((dir < 0) && (mag < 128)) || ((dir > 0) && (mag >= 128)))
{
ret = JOY_LEFT | updown | shot;
}
else if (((dir > 0) && (mag < 128)) || ((dir < 0) && (mag >=128)))
{
ret = JOY_RIGHT | updown | shot;
}
else
{
ret = updown | shot;
}
/*
if ( sm->playfeld[me].fitness < 800 )
updown = JOY_DOWN;
else
updown = JOY_UP;
if (!(( angle - mangle < 6 ) && ( angle - mangle > -6 )))
shot = 0;
else
shot = JOY_BUTTON;
if ( angle > mangle )
{
ret = JOY_RIGHT | updown | shot;
}
else if ( angle < mangle )
{
ret = JOY_LEFT | updown | shot;
}
else
{
ret = updown | JOY_BUTTON;
}
*/
if(prtcntr++ > 10&&0)
{
prtcntr = 0;
printf("chasing opponent: %d at angle: %d My angle: %d\n",chase,angle,sm->playfeld[me].winkel);
}
return ret;
}
int whos_close(int me)
{
int i;
int dist=999999999;
int temp;
int close=-1;
for( i = 0 ; i < (sm->anzplayers) ; i++ )
{
if( i == me )
continue;
temp = get_dist( i , me );
if((dist > temp) && (sm->playfeld[i].alive) && (sm->playfeld[i].team != sm->playfeld[me].team))
{
dist = temp;
close = i;
}
/* else if (dist == -1)
{
dist = 999999999;
close = i;
}
*/
}
return close;
}
int get_dist(int a, int b)
{
int tmp1;
int tmp2;
int difx;
int dify;
int dist;
double dx,dy,di;
tmp1 = sm->playfeld[a].x;
tmp2 = sm->playfeld[b].x;
difx = tmp1 - tmp2;
tmp1 = sm->playfeld[a].y;
tmp2 = sm->playfeld[b].y;
dify = tmp1 - tmp2;
dx = (double) difx;
dy = (double) dify;
dx *= dx;
dy *= dy;
di = sqrt(dx+dy);
dist = (int) di;
return dist;
}
int what_ang(int target , int me)
{
int ang;
int difx;
int dify;
double an;
double dx;
double dy;
int tmp1;
int tmp2;
double tmp3;
tmp1 = sm->playfeld[me].x;
tmp2 = sm->playfeld[target].x;
difx = tmp1 - tmp2;
dx = (double) difx;
if (dx == 0.0)
dx = 1.0;
tmp1 = sm->playfeld[me].y;
tmp2 = sm->playfeld[target].y;
dify = tmp1 - tmp2;
dy = (double) dify;
tmp3 = dy/dx;
an = -atan(tmp3);
an = (an/(2.0*PI))*256.0;
ang = (int) an;
if ( difx < 0 )
ang += 63;
else
ang += 191;
if ( ang > 255 )
ang -= 256;
return ang;
}
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