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Cavegen: Cleanup code. Define constant for MGV7_LAVA_DEPTH

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paramat committed Jul 1, 2015
1 parent d75009a commit c0dafa1c10918af03227941f14b6c5b7285c27ad
Showing with 61 additions and 46 deletions.
  1. +60 −46 src/cavegen.cpp
  2. +1 −0 src/cavegen.h
@@ -32,11 +32,11 @@ NoiseParams nparams_caveliquids(0, 1, v3f(150.0, 150.0, 150.0), 776, 3, 0.6, 2.0


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->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;
@@ -45,8 +45,8 @@ CaveV5::CaveV5(MapgenV5 *mg, PseudoRandom *ps) {
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));
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));

@@ -157,7 +157,7 @@ void CaveV5::makeTunnel(bool dirswitch) {

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) {
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)
@@ -215,7 +215,7 @@ void CaveV5::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) {
startp += of;

float nval = NoisePerlin3D(np_caveliquids, startp.X,
startp.Y, startp.Z, mg->seed);
startp.Y, startp.Z, mg->seed);
MapNode liquidnode = nval < 0.40 ? lavanode : waternode;

v3f fp = orp + vec * f;
@@ -238,7 +238,7 @@ void CaveV5::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) {
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);
rs / 2 - MYMAX(0, maxabsxz - rs / 7 - 1);

for (s16 y0 = -si2; y0 <= si2; y0++) {
if (large_cave_is_flat) {
@@ -251,9 +251,10 @@ void CaveV5::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) {
p += of;

if (!is_ravine && mg->heightmap && should_make_cave_hole &&
p.X <= node_max.X && p.Z <= node_max.Z) {
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);
int idx = (p.Z - node_min.Z) * maplen +
(p.X - node_min.X);
if (p.Y >= mg->heightmap[idx] - 2)
continue;
}
@@ -269,10 +270,13 @@ void CaveV5::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) {
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;
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;
vm->m_data[i] = (p.Y < startp.Y - 4) ?
liquidnode : airnode;
else
vm->m_data[i] = airnode;
}
@@ -285,24 +289,24 @@ void CaveV5::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) {


CaveV6::CaveV6(MapgenV6 *mg, PseudoRandom *ps, PseudoRandom *ps2, bool is_large_cave) {
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->ps2 = ps2;
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->ps2 = ps2;
this->c_water_source = mg->c_water_source;
this->c_lava_source = mg->c_lava_source;

min_tunnel_diameter = 2;
max_tunnel_diameter = ps->range(2, 6);
dswitchint = ps->range(1, 14);
flooded = true;
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(2,4);
tunnel_routepoints = ps->range(5, ps->range(15,30));
min_tunnel_diameter = 5;
max_tunnel_diameter = ps->range(7, ps->range(8,24));
} else {
@@ -438,7 +442,8 @@ void CaveV6::makeTunnel(bool dirswitch) {
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);
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
@@ -447,7 +452,8 @@ void CaveV6::makeTunnel(bool dirswitch) {
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);
u32 index2 = (p2.Z - node_min.Z) * mg->ystride +
(p2.X - node_min.X);
h2 = mg->heightmap[index2];
} else {
h2 = water_level;
@@ -540,10 +546,13 @@ void CaveV6::carveRoute(v3f vec, float f, bool randomize_xz) {
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;
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 - 2) ? lavanode : airnode;
vm->m_data[i] = (p.Y < startp.Y - 2) ?
lavanode : airnode;
} else {
vm->m_data[i] = airnode;
}
@@ -564,11 +573,11 @@ void CaveV6::carveRoute(v3f vec, float f, bool randomize_xz) {


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->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;
@@ -577,8 +586,8 @@ CaveV7::CaveV7(MapgenV7 *mg, PseudoRandom *ps) {
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));
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));

@@ -748,8 +757,9 @@ void CaveV7::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) {
startp += of;

float nval = NoisePerlin3D(np_caveliquids, startp.X,
startp.Y, startp.Z, mg->seed);
MapNode liquidnode = (nval < 0.40 && node_max.Y < -256) ? lavanode : waternode;
startp.Y, startp.Z, mg->seed);
MapNode liquidnode = (nval < 0.40 && node_max.Y < MGV7_LAVA_DEPTH) ?
lavanode : waternode;

v3f fp = orp + vec * f;
fp.X += 0.1 * ps->range(-10, 10);
@@ -771,7 +781,7 @@ void CaveV7::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) {
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);
rs / 2 - MYMAX(0, maxabsxz - rs / 7 - 1);

for (s16 y0 = -si2; y0 <= si2; y0++) {
if (large_cave_is_flat) {
@@ -784,9 +794,10 @@ void CaveV7::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) {
p += of;

if (!is_ravine && mg->heightmap && should_make_cave_hole &&
p.X <= node_max.X && p.Z <= node_max.Z) {
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);
int idx = (p.Z - node_min.Z) * maplen +
(p.X - node_min.X);
if (p.Y >= mg->heightmap[idx] - 2)
continue;
}
@@ -802,10 +813,13 @@ void CaveV7::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) {
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;
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;
vm->m_data[i] = (p.Y < startp.Y - 4) ?
liquidnode : airnode;
else
vm->m_data[i] = airnode;
}
@@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#define CAVEGEN_HEADER

#define VMANIP_FLAG_CAVE VOXELFLAG_CHECKED1
#define MGV7_LAVA_DEPTH -256

class MapgenV5;
class MapgenV6;

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