#include "util/numeric.h"
#include "map.h"
#include "mapgen.h"
+#include "mapgen_v5.h"
#include "mapgen_v6.h"
#include "mapgen_v7.h"
#include "cavegen.h"
-NoiseParams nparams_caveliquids(0, 1, v3f(150.0, 150.0, 150.0), 776, 3, 0.6);
+NoiseParams nparams_caveliquids(0, 1, v3f(150.0, 150.0, 150.0), 776, 3, 0.6, 2.0);
-///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////// Caves V5
+
+
+CaveV5::CaveV5(MapgenV5 *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 CaveV5::makeCave(v3s16 nmin, v3s16 nmax, int max_stone_height) {
+ node_min = nmin;
+ node_max = nmax;
+ 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 CaveV5::makeTunnel(bool dirswitch) {
+
+ // Randomize size
+ s16 min_d = min_tunnel_diameter;
+ s16 max_d = max_tunnel_diameter;
+ rs = ps->range(min_d, max_d);
+ s16 rs_part_max_length_rs = rs * part_max_length_rs;
+
+ v3s16 maxlen;
+ maxlen = v3s16(
+ rs_part_max_length_rs,
+ rs_part_max_length_rs / 2,
+ rs_part_max_length_rs
+ );
+
+ v3f vec;
+ // Jump downward sometimes
+ vec = v3f(
+ (float)(ps->next() % maxlen.X) - (float)maxlen.X / 2,
+ (float)(ps->next() % maxlen.Y) - (float)maxlen.Y / 2,
+ (float)(ps->next() % maxlen.Z) - (float)maxlen.Z / 2
+ );
+
+ // Do not make large caves that are above ground.
+ // It is only necessary to check the startpoint and endpoint.
+ v3s16 orpi(orp.X, orp.Y, orp.Z);
+ v3s16 veci(vec.X, vec.Y, vec.Z);
+ v3s16 p;
+
+ p = orpi + veci + of + rs / 2;
+ if (p.Z >= node_min.Z && p.Z <= node_max.Z &&
+ p.X >= node_min.X && p.X <= node_max.X) {
+ u32 index = (p.Z - node_min.Z) * mg->ystride + (p.X - node_min.X);
+ s16 h = mg->heightmap[index];
+ if (h < p.Y)
+ return;
+ } else if (p.Y > water_level) {
+ return; // If it's not in our heightmap, use a simple heuristic
+ }
+
+ p = orpi + of + rs / 2;
+ if (p.Z >= node_min.Z && p.Z <= node_max.Z &&
+ p.X >= node_min.X && p.X <= node_max.X) {
+ u32 index = (p.Z - node_min.Z) * mg->ystride + (p.X - node_min.X);
+ s16 h = mg->heightmap[index];
+ if (h < p.Y)
+ return;
+ } else if (p.Y > water_level) {
+ return;
+ }
+
+ vec += main_direction;
+
+ v3f rp = orp + vec;
+ if (rp.X < 0)
+ rp.X = 0;
+ else if (rp.X >= ar.X)
+ rp.X = ar.X - 1;
+
+ if (rp.Y < route_y_min)
+ rp.Y = route_y_min;
+ else if (rp.Y >= route_y_max)
+ rp.Y = route_y_max - 1;
+
+ if (rp.Z < 0)
+ rp.Z = 0;
+ else if (rp.Z >= ar.Z)
+ rp.Z = ar.Z - 1;
+
+ vec = rp - orp;
+
+ float veclen = vec.getLength();
+ if (veclen < 0.05)
+ veclen = 1.0;
+
+ // Every second section is rough
+ bool randomize_xz = (ps->range(1, 2) == 1);
+
+ // Make a ravine every once in a while if it's long enough
+ //float xylen = vec.X * vec.X + vec.Z * vec.Z;
+ //disable ravines for now
+ bool is_ravine = false; //(xylen > 500.0) && !large_cave && (ps->range(1, 8) == 1);
+
+ // Carve routes
+ for (float f = 0; f < 1.0; f += 1.0 / veclen)
+ carveRoute(vec, f, randomize_xz, is_ravine);
+
+ orp = rp;
+}
+
+
+void CaveV5::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) {
+ MapNode airnode(CONTENT_AIR);
+ MapNode waternode(c_water_source);
+ MapNode lavanode(c_lava_source);
+
+ v3s16 startp(orp.X, orp.Y, orp.Z);
+ startp += of;
+
+ float nval = NoisePerlin3D(np_caveliquids, startp.X,
+ startp.Y, startp.Z, mg->seed);
+ MapNode liquidnode = nval < 0.40 ? lavanode : waternode;
+
+ v3f fp = orp + vec * f;
+ fp.X += 0.1 * ps->range(-10, 10);
+ fp.Z += 0.1 * ps->range(-10, 10);
+ v3s16 cp(fp.X, fp.Y, fp.Z);
+
+ s16 d0 = -rs/2;
+ s16 d1 = d0 + rs;
+ if (randomize_xz) {
+ d0 += ps->range(-1, 1);
+ d1 += ps->range(-1, 1);
+ }
+
+ bool should_make_cave_hole = ps->range(1, 10) == 1;
+
+ for (s16 z0 = d0; z0 <= d1; z0++) {
+ s16 si = rs / 2 - MYMAX(0, abs(z0) - rs / 7 - 1);
+ for (s16 x0 = -si - ps->range(0,1); x0 <= si - 1 + ps->range(0,1); x0++) {
+ s16 maxabsxz = MYMAX(abs(x0), abs(z0));
+
+ s16 si2 = is_ravine ? MYMIN(ps->range(25, 26), ar.Y) :
+ rs / 2 - MYMAX(0, maxabsxz - rs / 7 - 1);
+
+ for (s16 y0 = -si2; y0 <= si2; y0++) {
+ if (large_cave_is_flat) {
+ // Make large caves not so tall
+ if (rs > 7 && abs(y0) >= rs / 3)
+ continue;
+ }
+
+ v3s16 p(cp.X + x0, cp.Y + y0, cp.Z + z0);
+ p += of;
+
+ if (!is_ravine && mg->heightmap && should_make_cave_hole &&
+ p.X <= node_max.X && p.Z <= node_max.Z) {
+ int maplen = node_max.X - node_min.X + 1;
+ int idx = (p.Z - node_min.Z) * maplen + (p.X - node_min.X);
+ if (p.Y >= mg->heightmap[idx] - 2)
+ continue;
+ }
+
+ if (vm->m_area.contains(p) == false)
+ continue;
+
+ u32 i = vm->m_area.index(p);
+
+ // Don't replace air, water, lava, or ice
+ content_t c = vm->m_data[i].getContent();
+ if (!ndef->get(c).is_ground_content || c == CONTENT_AIR ||
+ c == c_water_source || c == c_lava_source || c == c_ice)
+ continue;
+
+ int full_ymin = node_min.Y - MAP_BLOCKSIZE;
+ int full_ymax = node_max.Y + MAP_BLOCKSIZE;
+
+ if (flooded && full_ymin < water_level && full_ymax > water_level)
+ vm->m_data[i] = (p.Y <= water_level) ? waternode : airnode;
+ else if (flooded && full_ymax < water_level)
+ vm->m_data[i] = (p.Y < startp.Y - 4) ? liquidnode : airnode;
+ else
+ vm->m_data[i] = airnode;
+ }
+ }
+ }
+}
+
+
+///////////////////////////////////////// Caves V6
CaveV6::CaveV6(MapgenV6 *mg, PseudoRandom *ps, PseudoRandom *ps2, bool is_large_cave) {
max_tunnel_diameter = ps->range(2, 6);
dswitchint = ps->range(1, 14);
flooded = true;
-
+
if (large_cave) {
part_max_length_rs = ps->range(2,4);
tunnel_routepoints = ps->range(5, ps->range(15,30));
part_max_length_rs = ps->range(2,9);
tunnel_routepoints = ps->range(10, ps->range(15,30));
}
-
+
large_cave_is_flat = (ps->range(0,1) == 0);
}
(float)(ps->next() % ar.Z) + 0.5
);
- int notifytype = large_cave ? GENNOTIFY_LARGECAVE_BEGIN : GENNOTIFY_CAVE_BEGIN;
- if (mg->gennotify & (1 << notifytype)) {
- std::vector <v3s16> *nvec = mg->gen_notifications[notifytype];
- nvec->push_back(v3s16(of.X + orp.X, of.Y + orp.Y, of.Z + orp.Z));
- }
+ // Add generation notify begin event
+ v3s16 abs_pos(of.X + orp.X, of.Y + orp.Y, of.Z + orp.Z);
+ GenNotifyType notifytype = large_cave ?
+ GENNOTIFY_LARGECAVE_BEGIN : GENNOTIFY_CAVE_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);
- notifytype = large_cave ? GENNOTIFY_LARGECAVE_END : GENNOTIFY_CAVE_END;
- if (mg->gennotify & (1 << notifytype)) {
- std::vector <v3s16> *nvec = mg->gen_notifications[notifytype];
- nvec->push_back(v3s16(of.X + orp.X, of.Y + orp.Y, of.Z + orp.Z));
- }
+ // Add generation notify end event
+ abs_pos = v3s16(of.X + orp.X, of.Y + orp.Y, of.Z + orp.Z);
+ notifytype = large_cave ?
+ GENNOTIFY_LARGECAVE_END : GENNOTIFY_CAVE_END;
+ mg->gennotify.addEvent(notifytype, abs_pos);
}
s16 min_d = min_tunnel_diameter;
s16 max_d = max_tunnel_diameter;
rs = ps->range(min_d, max_d);
+ s16 rs_part_max_length_rs = rs * part_max_length_rs;
v3s16 maxlen;
if (large_cave) {
maxlen = v3s16(
- rs * part_max_length_rs,
- rs * part_max_length_rs / 2,
- rs * part_max_length_rs
+ rs_part_max_length_rs,
+ rs_part_max_length_rs / 2,
+ rs_part_max_length_rs
);
} else {
maxlen = v3s16(
- rs * part_max_length_rs,
- ps->range(1, rs * part_max_length_rs),
- rs * part_max_length_rs
+ rs_part_max_length_rs,
+ ps->range(1, rs_part_max_length_rs),
+ rs_part_max_length_rs
);
}
v3f vec(
- (float)(ps->next() % (maxlen.X * 1)) - (float)maxlen.X / 2,
- (float)(ps->next() % (maxlen.Y * 1)) - (float)maxlen.Y / 2,
- (float)(ps->next() % (maxlen.Z * 1)) - (float)maxlen.Z / 2
+ (float)(ps->next() % maxlen.X) - (float)maxlen.X / 2,
+ (float)(ps->next() % maxlen.Y) - (float)maxlen.Y / 2,
+ (float)(ps->next() % maxlen.Z) - (float)maxlen.Z / 2
);
// Jump downward sometimes
if (!large_cave && ps->range(0, 12) == 0) {
vec = v3f(
- (float)(ps->next() % (maxlen.X * 1)) - (float)maxlen.X / 2,
+ (float)(ps->next() % maxlen.X) - (float)maxlen.X / 2,
(float)(ps->next() % (maxlen.Y * 2)) - (float)maxlen.Y,
- (float)(ps->next() % (maxlen.Z * 1)) - (float)maxlen.Z / 2
+ (float)(ps->next() % maxlen.Z) - (float)maxlen.Z / 2
);
}
+ // Do not make large caves that are entirely above ground.
+ // It is only necessary to check the startpoint and endpoint.
+ if (large_cave) {
+ v3s16 orpi(orp.X, orp.Y, orp.Z);
+ v3s16 veci(vec.X, vec.Y, vec.Z);
+ s16 h1;
+ s16 h2;
+
+ v3s16 p1 = orpi + veci + of + rs / 2;
+ if (p1.Z >= node_min.Z && p1.Z <= node_max.Z &&
+ p1.X >= node_min.X && p1.X <= node_max.X) {
+ u32 index1 = (p1.Z - node_min.Z) * mg->ystride + (p1.X - node_min.X);
+ h1 = mg->heightmap[index1];
+ } else {
+ h1 = water_level; // If not in heightmap
+ }
+
+ v3s16 p2 = orpi + of + rs / 2;
+ if (p2.Z >= node_min.Z && p2.Z <= node_max.Z &&
+ p2.X >= node_min.X && p2.X <= node_max.X) {
+ u32 index2 = (p2.Z - node_min.Z) * mg->ystride + (p2.X - node_min.X);
+ h2 = mg->heightmap[index2];
+ } else {
+ h2 = water_level;
+ }
+
+ if (p1.Y > h1 && p2.Y > h2) // If startpoint and endpoint are above ground
+ return;
+ }
+
vec += main_direction;
v3f rp = orp + vec;
rp.X = 0;
else if (rp.X >= ar.X)
rp.X = ar.X - 1;
-
+
if (rp.Y < route_y_min)
rp.Y = route_y_min;
else if (rp.Y >= route_y_max)
rp.Y = route_y_max - 1;
-
+
if (rp.Z < 0)
rp.Z = 0;
else if (rp.Z >= ar.Z)
rp.Z = ar.Z - 1;
-
+
vec = rp - orp;
float veclen = vec.getLength();
// As odd as it sounds, veclen is *exactly* 0.0 sometimes, causing a FPE
if (veclen < 0.05)
veclen = 1.0;
-
+
// Every second section is rough
bool randomize_xz = (ps2->range(1, 2) == 1);
// Carve routes
for (float f = 0; f < 1.0; f += 1.0 / veclen)
carveRoute(vec, f, randomize_xz);
-
+
orp = rp;
}
MapNode airnode(CONTENT_AIR);
MapNode waternode(c_water_source);
MapNode lavanode(c_lava_source);
-
+
v3s16 startp(orp.X, orp.Y, orp.Z);
startp += of;
-
+
v3f fp = orp + vec * f;
fp.X += 0.1 * ps->range(-10, 10);
fp.Z += 0.1 * ps->range(-10, 10);
d0 += ps->range(-1, 1);
d1 += ps->range(-1, 1);
}
-
+
for (s16 z0 = d0; z0 <= d1; z0++) {
s16 si = rs / 2 - MYMAX(0, abs(z0) - rs / 7 - 1);
for (s16 x0 = -si - ps->range(0,1); x0 <= si - 1 + ps->range(0,1); x0++) {
s16 maxabsxz = MYMAX(abs(x0), abs(z0));
s16 si2 = rs / 2 - MYMAX(0, maxabsxz - rs / 7 - 1);
- for (s16 y0 = -si2; y0 <= si2; y0++) {
+ for (s16 y0 = -si2; y0 <= si2; y0++) {
if (large_cave_is_flat) {
// Make large caves not so tall
if (rs > 7 && abs(y0) >= rs / 3)
///////////////////////////////////////// Caves V7
-CaveV7::CaveV7(MapgenV7 *mg, PseudoRandom *ps, bool is_large_cave) {
+
+CaveV7::CaveV7(MapgenV7 *mg, PseudoRandom *ps) {
this->mg = mg;
this->vm = mg->vm;
this->ndef = mg->ndef;
this->water_level = mg->water_level;
- this->large_cave = is_large_cave;
this->ps = ps;
this->c_water_source = mg->c_water_source;
this->c_lava_source = mg->c_lava_source;
dswitchint = ps->range(1, 14);
flooded = ps->range(1, 2) == 2;
-
- if (large_cave) {
- 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));
- } else {
- part_max_length_rs = ps->range(2, 9);
- tunnel_routepoints = ps->range(10, ps->range(15, 30));
- min_tunnel_diameter = 2;
- max_tunnel_diameter = ps->range(2, 6);
- }
-
+
+ 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);
}
// Limit maximum to area
route_y_max = rangelim(route_y_max, 0, ar.Y - 1);
- if (large_cave) {
- 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 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;
(float)(ps->next() % ar.Z) + 0.5
);
- int notifytype = large_cave ? GENNOTIFY_LARGECAVE_BEGIN : GENNOTIFY_CAVE_BEGIN;
- if (mg->gennotify & (1 << notifytype)) {
- std::vector <v3s16> *nvec = mg->gen_notifications[notifytype];
- nvec->push_back(v3s16(of.X + orp.X, of.Y + orp.Y, of.Z + orp.Z));
- }
+ // 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);
- notifytype = large_cave ? GENNOTIFY_LARGECAVE_END : GENNOTIFY_CAVE_END;
- if (mg->gennotify & (1 << notifytype)) {
- std::vector <v3s16> *nvec = mg->gen_notifications[notifytype];
- nvec->push_back(v3s16(of.X + orp.X, of.Y + orp.Y, of.Z + orp.Z));
- }
+ // 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) {
- if (dirswitch && !large_cave) {
- main_direction = v3f(
- ((float)(ps->next() % 20) - (float)10) / 10,
- ((float)(ps->next() % 20) - (float)10) / 30,
- ((float)(ps->next() % 20) - (float)10) / 10
- );
- main_direction *= (float)ps->range(0, 10) / 10;
- }
// Randomize size
s16 min_d = min_tunnel_diameter;
s16 max_d = max_tunnel_diameter;
rs = ps->range(min_d, max_d);
+ s16 rs_part_max_length_rs = rs * part_max_length_rs;
v3s16 maxlen;
- if (large_cave) {
- maxlen = v3s16(
- rs * part_max_length_rs,
- rs * part_max_length_rs / 2,
- rs * part_max_length_rs
- );
- } else {
- maxlen = v3s16(
- rs * part_max_length_rs,
- ps->range(1, rs * part_max_length_rs),
- rs * part_max_length_rs
- );
- }
+ maxlen = v3s16(
+ rs_part_max_length_rs,
+ rs_part_max_length_rs / 2,
+ rs_part_max_length_rs
+ );
v3f vec;
// Jump downward sometimes
- if (!large_cave && ps->range(0, 12) == 0) {
- vec = v3f(
- (float)(ps->next() % (maxlen.X * 1)) - (float)maxlen.X / 2,
- (float)(ps->next() % (maxlen.Y * 2)) - (float)maxlen.Y,
- (float)(ps->next() % (maxlen.Z * 1)) - (float)maxlen.Z / 2
- );
- } else {
- vec = v3f(
- (float)(ps->next() % (maxlen.X * 1)) - (float)maxlen.X / 2,
- (float)(ps->next() % (maxlen.Y * 1)) - (float)maxlen.Y / 2,
- (float)(ps->next() % (maxlen.Z * 1)) - (float)maxlen.Z / 2
- );
- }
+ vec = v3f(
+ (float)(ps->next() % maxlen.X) - (float)maxlen.X / 2,
+ (float)(ps->next() % maxlen.Y) - (float)maxlen.Y / 2,
+ (float)(ps->next() % maxlen.Z) - (float)maxlen.Z / 2
+ );
// Do not make large caves that are above ground.
// It is only necessary to check the startpoint and endpoint.
- if (large_cave) {
- v3s16 orpi(orp.X, orp.Y, orp.Z);
- v3s16 veci(vec.X, vec.Y, vec.Z);
- v3s16 p;
-
- p = orpi + veci + of + rs / 2;
- if (p.Z >= node_min.Z && p.Z <= node_max.Z &&
+ v3s16 orpi(orp.X, orp.Y, orp.Z);
+ v3s16 veci(vec.X, vec.Y, vec.Z);
+ v3s16 p;
+
+ p = orpi + veci + of + rs / 2;
+ if (p.Z >= node_min.Z && p.Z <= node_max.Z &&
p.X >= node_min.X && p.X <= node_max.X) {
- u32 index = (p.Z - node_min.Z) * mg->ystride + (p.X - node_min.X);
- s16 h = mg->ridge_heightmap[index];
- if (h < p.Y)
- return;
- } else if (p.Y > water_level) {
- return; // If it's not in our heightmap, use a simple heuristic
- }
-
- p = orpi + of + rs / 2;
- if (p.Z >= node_min.Z && p.Z <= node_max.Z &&
+ u32 index = (p.Z - node_min.Z) * mg->ystride + (p.X - node_min.X);
+ s16 h = mg->ridge_heightmap[index];
+ if (h < p.Y)
+ return;
+ } else if (p.Y > water_level) {
+ return; // If it's not in our heightmap, use a simple heuristic
+ }
+
+ p = orpi + of + rs / 2;
+ if (p.Z >= node_min.Z && p.Z <= node_max.Z &&
p.X >= node_min.X && p.X <= node_max.X) {
- u32 index = (p.Z - node_min.Z) * mg->ystride + (p.X - node_min.X);
- s16 h = mg->ridge_heightmap[index];
- if (h < p.Y)
- return;
- } else if (p.Y > water_level) {
+ u32 index = (p.Z - node_min.Z) * mg->ystride + (p.X - node_min.X);
+ s16 h = mg->ridge_heightmap[index];
+ if (h < p.Y)
return;
- }
+ } else if (p.Y > water_level) {
+ return;
}
vec += main_direction;
rp.X = 0;
else if (rp.X >= ar.X)
rp.X = ar.X - 1;
-
+
if (rp.Y < route_y_min)
rp.Y = route_y_min;
else if (rp.Y >= route_y_max)
rp.Y = route_y_max - 1;
-
+
if (rp.Z < 0)
rp.Z = 0;
else if (rp.Z >= ar.Z)
rp.Z = ar.Z - 1;
-
+
vec = rp - orp;
float veclen = vec.getLength();
if (veclen < 0.05)
veclen = 1.0;
-
+
// Every second section is rough
bool randomize_xz = (ps->range(1, 2) == 1);
// Carve routes
for (float f = 0; f < 1.0; f += 1.0 / veclen)
carveRoute(vec, f, randomize_xz, is_ravine);
-
+
orp = rp;
}
MapNode airnode(CONTENT_AIR);
MapNode waternode(c_water_source);
MapNode lavanode(c_lava_source);
-
+
v3s16 startp(orp.X, orp.Y, orp.Z);
startp += of;
-
+
float nval = NoisePerlin3D(np_caveliquids, startp.X,
startp.Y, startp.Z, mg->seed);
- MapNode liquidnode = nval < 0.40 ? lavanode : waternode;
-
+ MapNode liquidnode = (nval < 0.40 && node_max.Y < -256) ? lavanode : waternode;
+
v3f fp = orp + vec * f;
fp.X += 0.1 * ps->range(-10, 10);
fp.Z += 0.1 * ps->range(-10, 10);
d0 += ps->range(-1, 1);
d1 += ps->range(-1, 1);
}
-
- bool flat_cave_floor = !large_cave && ps->range(0, 2) == 2;
+
bool should_make_cave_hole = ps->range(1, 10) == 1;
-
+
for (s16 z0 = d0; z0 <= d1; z0++) {
s16 si = rs / 2 - MYMAX(0, abs(z0) - rs / 7 - 1);
for (s16 x0 = -si - ps->range(0,1); x0 <= si - 1 + ps->range(0,1); x0++) {
s16 maxabsxz = MYMAX(abs(x0), abs(z0));
-
+
s16 si2 = is_ravine ? MYMIN(ps->range(25, 26), ar.Y) :
rs / 2 - MYMAX(0, maxabsxz - rs / 7 - 1);
-
+
for (s16 y0 = -si2; y0 <= si2; y0++) {
- // Make better floors in small caves
- if(flat_cave_floor && y0 <= -rs/2 && rs<=7)
- continue;
-
if (large_cave_is_flat) {
// Make large caves not so tall
if (rs > 7 && abs(y0) >= rs / 3)
v3s16 p(cp.X + x0, cp.Y + y0, cp.Z + z0);
p += of;
-
+
if (!is_ravine && mg->heightmap && should_make_cave_hole &&
p.X <= node_max.X && p.Z <= node_max.Z) {
int maplen = node_max.X - node_min.X + 1;
continue;
u32 i = vm->m_area.index(p);
-
+
// Don't replace air, water, lava, or ice
content_t c = vm->m_data[i].getContent();
if (!ndef->get(c).is_ground_content || c == CONTENT_AIR ||
c == c_water_source || c == c_lava_source || c == c_ice)
continue;
-
- if (large_cave) {
- int full_ymin = node_min.Y - MAP_BLOCKSIZE;
- int full_ymax = node_max.Y + MAP_BLOCKSIZE;
- if (flooded && full_ymin < water_level && full_ymax > water_level)
- vm->m_data[i] = (p.Y <= water_level) ? waternode : airnode;
- else if (flooded && full_ymax < water_level)
- vm->m_data[i] = (p.Y < startp.Y - 4) ? liquidnode : airnode;
- else
- vm->m_data[i] = airnode;
- } else {
- if (c == CONTENT_IGNORE)
- continue;
-
+ int full_ymin = node_min.Y - MAP_BLOCKSIZE;
+ int full_ymax = node_max.Y + MAP_BLOCKSIZE;
+
+ if (flooded && full_ymin < water_level && full_ymax > water_level)
+ vm->m_data[i] = (p.Y <= water_level) ? waternode : airnode;
+ else if (flooded && full_ymax < water_level)
+ vm->m_data[i] = (p.Y < startp.Y - 4) ? liquidnode : airnode;
+ else
vm->m_data[i] = airnode;
- vm->m_flags[i] |= VMANIP_FLAG_CAVE;
- }
}
}
}
}
+
projects / oweals / minetest.git / blobdiff