int isRadar(vec3_t origin, int *screen) {
	vec3_t vec,rot;
	float distance;

	VectorSubtract(origin, cgame->frame->cg_refdef.vieworg, vec);
	vec[2] = 0.0f;
	distance = VectorLength(vec)*0.025;
	vectoangles(vec,rot);
	rot[1] = AngleNormalize180(rot[1] - cgame->frame->cg_refdefViewAngles[1]);
	AngleVectors(rot,vec,0,0);
	VectorScale(vec,distance,vec);

	if (vec[0]>100.0f)
	   VectorScale(vec,100.0f/vec[0],vec);
	else if (vec[0]<-100.0f)
	   VectorScale(vec,-100.0f/vec[0],vec);
	if(vec[1]>100.0f)
	   VectorScale(vec,100.0f/vec[1],vec);
	else if(vec[1]<-100.0f)
	   VectorScale(vec,-100.0f/vec[1],vec);

	screen[0]=((int)-vec[1]+0)-2;
	screen[1]=((int)-vec[0]+0)-2;
	return 1;
}

void drawRadar() {
	vec4_t radarcolor = { 0.5f, 0.5f, 0.5f, 0.25f };

    drawFillRect(0, 0,100, 100, radarcolor);

	int screen[2];
	int player;
	for (player=0; player < MAX_CLIENTS; player++) {
		if (!IS_PLAYER_VALID(player) || !isRadar(cgame->frame->players[player].origin, screen))
			continue;

		// added in order not to cross radar area
	    if (screen[0] < 443) screen[0] = 443;
	    if (screen[0] > 637) screen[0] = 637;
	    if (screen[1] > 195) screen[1] = 195;
	    
		syscall_R_SetColor(colorWhite);
	    drawFillRect( screen[0]-2, screen[1]-2, 5, 5, colorBlue);
		
		syscall_R_SetColor(NULL);
	}
}