-///////////////////////////////////////// Caves V7
-
-
-CaveV7::CaveV7(MapgenV7 *mg, PseudoRandom *ps)
-{
- this->mg = mg;
- this->vm = mg->vm;
- this->ndef = mg->ndef;
- this->water_level = mg->water_level;
- this->ps = ps;
- this->c_water_source = mg->c_water_source;
- this->c_lava_source = mg->c_lava_source;
- this->c_ice = mg->c_ice;
- this->np_caveliquids = &nparams_caveliquids;
-
- dswitchint = ps->range(1, 14);
- flooded = ps->range(1, 2) == 2;
-
- part_max_length_rs = ps->range(2, 4);
- tunnel_routepoints = ps->range(5, ps->range(15, 30));
- min_tunnel_diameter = 5;
- max_tunnel_diameter = ps->range(7, ps->range(8, 24));
-
- large_cave_is_flat = (ps->range(0, 1) == 0);
-}
-
-
-void CaveV7::makeCave(v3s16 nmin, v3s16 nmax, int max_stone_height)
-{
- node_min = nmin;
- node_max = nmax;
- max_stone_y = max_stone_height;
- main_direction = v3f(0, 0, 0);
-
- // Allowed route area size in nodes
- ar = node_max - node_min + v3s16(1, 1, 1);
- // Area starting point in nodes
- of = node_min;
-
- // Allow a bit more
- //(this should be more than the maximum radius of the tunnel)
- s16 insure = 10;
- s16 more = MYMAX(MAP_BLOCKSIZE - max_tunnel_diameter / 2 - insure, 1);
- ar += v3s16(1,0,1) * more * 2;
- of -= v3s16(1,0,1) * more;
-
- route_y_min = 0;
- // Allow half a diameter + 7 over stone surface
- route_y_max = -of.Y + max_stone_y + max_tunnel_diameter / 2 + 7;
-
- // Limit maximum to area
- route_y_max = rangelim(route_y_max, 0, ar.Y - 1);
-
- s16 min = 0;
- if (node_min.Y < water_level && node_max.Y > water_level) {
- min = water_level - max_tunnel_diameter/3 - of.Y;
- route_y_max = water_level + max_tunnel_diameter/3 - of.Y;
- }
- route_y_min = ps->range(min, min + max_tunnel_diameter);
- route_y_min = rangelim(route_y_min, 0, route_y_max);
-
- s16 route_start_y_min = route_y_min;
- s16 route_start_y_max = route_y_max;
-
- route_start_y_min = rangelim(route_start_y_min, 0, ar.Y - 1);
- route_start_y_max = rangelim(route_start_y_max, route_start_y_min, ar.Y - 1);
-
- // Randomize starting position
- orp = v3f(
- (float)(ps->next() % ar.X) + 0.5,
- (float)(ps->range(route_start_y_min, route_start_y_max)) + 0.5,
- (float)(ps->next() % ar.Z) + 0.5
- );
-
- // Add generation notify begin event
- v3s16 abs_pos(of.X + orp.X, of.Y + orp.Y, of.Z + orp.Z);
- GenNotifyType notifytype = GENNOTIFY_LARGECAVE_BEGIN;
- mg->gennotify.addEvent(notifytype, abs_pos);
-
- // Generate some tunnel starting from orp
- for (u16 j = 0; j < tunnel_routepoints; j++)
- makeTunnel(j % dswitchint == 0);
-
- // Add generation notify end event
- abs_pos = v3s16(of.X + orp.X, of.Y + orp.Y, of.Z + orp.Z);
- notifytype = GENNOTIFY_LARGECAVE_END;
- mg->gennotify.addEvent(notifytype, abs_pos);
-}
-
-
-void CaveV7::makeTunnel(bool dirswitch)