static int login_job(int sd, struct packet_st *pkt_r, int recv_len, struct sockaddr_in *hisend)
{
uint32_t id;
struct shadow_st sdw;
int ret;
int id_exist;
struct packet_st pkt;
struct database_record_st record, *recordp;
debug("call %s\n", __func__);
char ip_buf[32];
inet_ntop(AF_INET, &hisend->sin_addr, ip_buf, 32);
debug("in %s(), hisip: %s, hisport: %d\n", __func__, ip_buf, ntohs(hisend->sin_port));
/* check minor */
id = ntohl(pkt_r->id);
id_exist = get_shadow(id, &sdw);
debug("in %s(), %d, %s\n%s\n", __func__, sdw.id, sdw.salt, sdw.encrypt);
ret = snprintf(pkt.salt, PADSIZE, "%s", sdw.salt);
pkt.major = MAJOR_LOGIN;
pkt.minor = 2;
/* timeout ? */
debug("in %s(), will sendto, ret = %d\n", __func__, ret);
ret = sendto(sd, &pkt, ret + 2, 0, (struct sockaddr *)hisend, sizeof(*hisend));
debug("in %s(), sendto() return %d\n", __func__, ret);
perror("sendto()");
ret = recvfrom(sd, &pkt, sizeof(pkt), 0, NULL, NULL);
/* check src addr, major, minor */
pkt.encrypt[ret - 2] = '\0';
debug("%s\n%s\n", pkt.encrypt, sdw.encrypt);
if (id_exist == 0 || strcmp(pkt.encrypt, sdw.encrypt) != 0) {
/* fail */
pkt.major = MAJOR_LOGIN;
pkt.minor = 4;
pkt.ack = 1;
sendto(sd, &pkt, 3, 0, (struct sockaddr *)hisend, sizeof(*hisend));
} else {
/* success */
pkt.major = MAJOR_LOGIN;
pkt.minor = 4;
pkt.ack = 0;
/* update database */
recordp = database_find(id);
if (recordp == NULL) {
record.id = id;
memcpy(&record.addr, hisend, sizeof(struct sockaddr_in));
record.last = time(NULL);
record.online = 1;
database_insert(&record);
/* if error */
} else {
memcpy(&recordp->addr, hisend, sizeof(struct sockaddr_in));
recordp->last = time(NULL);
recordp->online = 1;
}
sendto(sd, &pkt, 3, 0, (struct sockaddr *)hisend, sizeof(*hisend));
}
return 0;
}
/**
* \brief Tell if the element must be displayed with a shadow.
*/
bool bear::visual::scene_element::has_shadow() const
{
return ( (get_shadow().x != 0) || (get_shadow().y != 0) )
&& (get_shadow_opacity() != 0);
} // scene_element::has_shadow()
/************************************************************************
* This is the recursive ray tracer - you need to implement this!
* You should decide what arguments to use.
************************************************************************/
vec3 recursive_ray_trace(vec3 eye, vec3 ray, int num, bool inobj) {
//
// do your thing here
//
if(num>step_max) return null_clr;
vec3 hit;
int isplane;
void *sph = intersect_scene(eye, ray, scene, &hit, &isplane);
vec3 color = null_clr;
if(sph==NULL) {
return background_clr;
}
vec3 lightvec = light1 - hit;
vec3 lightvec_normal = normalize(lightvec);
vec3 lighthit;
int lightisplane;
void * light_sph = intersect_scene(hit, lightvec_normal, scene, &lighthit, &lightisplane);
vec3 surf_normal = isplane?vec3(0,1,0):sphere_normal(hit, (Spheres*)sph);
if(light_sph==NULL) {
color += phong(-1*ray, lightvec, surf_normal, sph, hit, isplane);
}
else {
if(!shadow_on) {
color += phong(-1*ray, lightvec, surf_normal, sph, hit, isplane);
}
else {
color += get_shadow(-1*ray, lightvec, surf_normal, sph, hit, isplane);
}
}
if(reflect_on) {
vec3 reflect_vector = 2*dot(-1*ray, surf_normal)*surf_normal + ray;
reflect_vector = normalize(reflect_vector);
if(isplane) {
color += ((struct plane*)sph)->reflectance * recursive_ray_trace(hit, reflect_vector,num+1, inobj);
}
else if(!isplane)
color += ((Spheres *)sph)->reflectance * recursive_ray_trace(hit, reflect_vector, num+1, inobj);
}
if(refract_on) {
vec3 outlightvector;
if(refraction(hit, -1*ray, sph, isplane, inobj, &outlightvector)) {
if(!isplane) {
// printf("refraction point\n");
Spheres * refractsph = (Spheres *)sph;
color += refractsph->refr*recursive_ray_trace(hit, outlightvector, num+1, !inobj);
}
}
}
if(diffuse_reflection_on && num<2) {
int i;
for (i=0;i<DIFFUSE_REFLECTION;i++) {
float xtheta = 2.0 * static_cast <float> (rand()) / static_cast <float> (RAND_MAX) - 1.0;
float ytheta = 2.0 * static_cast <float> (rand()) / static_cast <float> (RAND_MAX) - 1.0;
float ztheta = 2.0 * static_cast <float> (rand()) / static_cast <float> (RAND_MAX) - 1.0;
vec3 dfray;
dfray = rotateX(xtheta*M_PI,surf_normal);
dfray = rotateY(ytheta*M_PI,dfray);
dfray = rotateZ(ztheta*M_PI,dfray);
color += (0.1/DIFFUSE_REFLECTION)*recursive_ray_trace(hit, dfray, num+1, inobj);
}
}
return color;
}