void random_on_sphere(double *v) {
double phi = random_equi(0, 2 * M_PI);
double theta = acos(1 - 2 * random_unit());
double s = sin(theta);
v[0] = s * cos(phi);
v[1] = s * sin(phi);
v[2] = cos(theta);
}
void chaos(region * r)
{
if (rng_int() % 100 < 8) {
switch (rng_int() % 3) {
case 0: /* Untote */
if (!fval(r->terrain, SEA_REGION)) {
unit *u = random_unit(r);
if (u && playerrace(u_race(u))) {
ADDMSG(&u->faction->msgs, msg_message("chaos_disease", "unit", u));
u_setfaction(u, get_monsters());
u_setrace(u, get_race(RC_GHOUL));
}
}
break;
case 1: /* Drachen */
if (random_unit(r)) {
int mfac = 0;
unit *u;
switch (rng_int() % 3) {
case 0:
mfac = 100;
u =
createunit(r, get_monsters(), rng_int() % 8 + 1,
get_race(RC_FIREDRAGON));
break;
case 1:
mfac = 500;
u =
createunit(r, get_monsters(), rng_int() % 4 + 1,
get_race(RC_DRAGON));
break;
default:
mfac = 1000;
u =
createunit(r, get_monsters(), rng_int() % 2 + 1,
get_race(RC_WYRM));
break;
}
if (mfac)
set_money(u, u->number * (rng_int() % mfac));
fset(u, UFL_ISNEW | UFL_MOVED);
}
case 2: /* Terrainveränderung */
if (!fval(r->terrain, FORBIDDEN_REGION)) {
if (!fval(r->terrain, SEA_REGION)) {
direction_t dir;
for (dir = 0; dir != MAXDIRECTIONS; ++dir) {
region *rn = rconnect(r, dir);
if (rn && fval(rn->terrain, SEA_REGION))
break;
}
if (dir != MAXDIRECTIONS) {
ship *sh = r->ships;
unit **up;
while (sh) {
ship *nsh = sh->next;
float dmg =
get_param_flt(global.parameters, "rules.ship.damage.atlantis",
0.50);
damage_ship(sh, dmg);
if (sh->damage >= sh->size * DAMAGE_SCALE) {
remove_ship(&sh->region->ships, sh);
}
sh = nsh;
}
for (up = &r->units; *up;) {
unit *u = *up;
if (u_race(u) != get_race(RC_SPELL) && u->ship == 0 && !canfly(u)) {
ADDMSG(&u->faction->msgs, msg_message("tidalwave_kill",
"region unit", r, u));
remove_unit(up, u);
}
if (*up == u)
up = &u->next;
}
ADDMSG(&r->msgs, msg_message("tidalwave", "region", r));
while (r->buildings) {
remove_building(&r->buildings, r->buildings);
}
terraform_region(r, newterrain(T_OCEAN));
}
} else {
direction_t dir;
for (dir = 0; dir != MAXDIRECTIONS; ++dir) {
region *rn = rconnect(r, dir);
if (rn && fval(rn->terrain, SEA_REGION))
break;
}
if (dir != MAXDIRECTIONS) {
terraform_region(r, chaosterrain());
}
}
}
}
}
}
double random_equi(double from, double to) {
return from + (to - from) * random_unit();
}
