void MapgenV6::growGrass() // Add surface nodes
{
MapNode n_dirt_with_grass(c_dirt_with_grass);
MapNode n_dirt_with_snow(c_dirt_with_snow);
MapNode n_snowblock(c_snowblock);
MapNode n_snow(c_snow);
MapNode n_dirt(c_dirt);
v3s16 em = vm->m_area.getExtent();
u32 index = 0;
for (s16 z = full_node_min.Z; z <= full_node_max.Z; z++)
for (s16 x = full_node_min.X; x <= full_node_max.X; x++, index++) {
// Find the lowest surface to which enough light ends up to make
// grass grow. Basically just wait until not air and not leaves.
s16 surface_y = 0;
{
u32 i = vm->m_area.index(x, node_max.Y, z);
s16 y;
// Go to ground level
for (y = node_max.Y; y >= full_node_min.Y; y--) {
MapNode &n = vm->m_data[i];
if (ndef->get(n).param_type != CPT_LIGHT ||
ndef->get(n).liquid_type != LIQUID_NONE ||
n.getContent() == c_ice)
break;
vm->m_area.add_y(em, i, -1);
}
surface_y = (y >= full_node_min.Y) ? y : full_node_min.Y;
}
BiomeV6Type bt = getBiome(index, v3POS(x, surface_y, z));
u32 i = vm->m_area.index(x, surface_y, z);
content_t c = vm->m_data[i].getContent();
if (m_emerge->env->m_use_weather && c == c_dirt) {
int heat = m_emerge->env->getServerMap().updateBlockHeat(m_emerge->env, v3POS(x, surface_y, z), nullptr, &heat_cache);
vm->m_data[i] = (heat < -10 ? n_dirt_with_snow : (heat < -5 || heat > 50) ? n_dirt : n_dirt_with_grass);
} else
if (surface_y >= water_level - 20) {
if (bt == BT_TAIGA && c == c_dirt) {
vm->m_data[i] = n_snowblock;
vm->m_area.add_y(em, i, -1);
vm->m_data[i] = n_dirt_with_snow;
} else if (bt == BT_TUNDRA) {
if (c == c_dirt) {
vm->m_data[i] = n_dirt_with_snow;
} else if (c == c_stone && surface_y < node_max.Y) {
vm->m_area.add_y(em, i, 1);
vm->m_data[i] = n_snow;
}
} else if (c == c_dirt) {
vm->m_data[i] = n_dirt_with_grass;
}
}
}
}
virtual void trigger(ServerEnvironment *env, v3POS p, MapNode n,
u32 active_object_count, u32 active_object_count_wider, MapNode neighbor, bool activate) {
ServerMap *map = &env->getServerMap();
if (map->transforming_liquid_size() > map->m_liquid_step_flow)
return;
if ( map->getNodeTry(p - v3POS(0, 1, 0 )).getContent() != CONTENT_AIR // below
&& map->getNodeTry(p - v3POS(1, 0, 0 )).getContent() != CONTENT_AIR // right
&& map->getNodeTry(p - v3POS(-1, 0, 0 )).getContent() != CONTENT_AIR // left
&& map->getNodeTry(p - v3POS(0, 0, 1 )).getContent() != CONTENT_AIR // back
&& map->getNodeTry(p - v3POS(0, 0, -1)).getContent() != CONTENT_AIR // front
)
return;
map->transforming_liquid_push_back(p);
}
void MapgenV6::addMud()
{
// 15ms @cs=8
//TimeTaker timer1("add mud");
MapNode n_dirt(c_dirt), n_gravel(c_gravel);
MapNode n_sand(c_sand), n_desert_sand(c_desert_sand);
MapNode addnode;
u32 index = 0;
for (s16 z = node_min.Z; z <= node_max.Z; z++)
for (s16 x = node_min.X; x <= node_max.X; x++, index++) {
// Randomize mud amount
s16 mud_add_amount = getMudAmount(index) / 2.0 + 0.5;
// Find ground level
s16 surface_y = find_stone_level(v2s16(x, z)); /////////////////optimize this!
// Handle area not found
if (surface_y == vm->m_area.MinEdge.Y - 1)
continue;
BiomeV6Type bt = getBiome(v3POS(x, surface_y, z));
addnode = (bt == BT_DESERT) ? n_desert_sand : n_dirt;
if (bt == BT_DESERT && surface_y + mud_add_amount <= water_level + 1) {
addnode = n_sand;
} else if (mud_add_amount <= 0) {
mud_add_amount = 1 - mud_add_amount;
addnode = n_gravel;
} else if (bt != BT_DESERT && getHaveBeach(index) &&
surface_y + mud_add_amount <= water_level + 2) {
addnode = n_sand;
}
if ((bt == BT_DESERT || bt == BT_TUNDRA) && surface_y > 20)
mud_add_amount = MYMAX(0, mud_add_amount - (surface_y - 20) / 5);
/* If topmost node is grass, change it to mud. It might be if it was
// flown to there from a neighboring chunk and then converted.
u32 i = vm->m_area.index(x, surface_y, z);
if (vm->m_data[i].getContent() == c_dirt_with_grass)
vm->m_data[i] = n_dirt;*/
// Add mud on ground
s16 mudcount = 0;
v3s16 em = vm->m_area.getExtent();
s16 y_start = surface_y + 1;
u32 i = vm->m_area.index(x, y_start, z);
for (s16 y = y_start; y <= node_max.Y; y++) {
if (mudcount >= mud_add_amount)
break;
vm->m_data[i] = addnode;
mudcount++;
vm->m_area.add_y(em, i, 1);
}
}
}
CircuitElement::CircuitElement(u32 element_id) :
m_pos(v3POS(0, 0, 0)), m_prev_input_state(0), m_current_input_state(0),
m_next_input_state(0), m_current_output_state(0) {
m_element_id = element_id;
for(int i = 0; i < 6; ++i) {
m_faces[i].is_connected = false;
}
}
int MapgenIndev::generateGround() {
//TimeTaker timer1("Generating ground level");
MapNode n_air(CONTENT_AIR), n_water_source(c_water_source);
MapNode n_stone(c_stone), n_desert_stone(c_desert_stone);
MapNode n_ice(c_ice), n_dirt(c_dirt),n_sand(c_sand), n_gravel(c_gravel), n_lava_source(c_lava_source);
int stone_surface_max_y = -MAX_MAP_GENERATION_LIMIT;
u32 index = 0;
for (s16 z = node_min.Z; z <= node_max.Z; z++)
for (s16 x = node_min.X; x <= node_max.X; x++, index++) {
// Surface height
s16 surface_y = (s16)baseTerrainLevelFromMap(index);
// Log it
if (surface_y > stone_surface_max_y)
stone_surface_max_y = surface_y;
auto bt = getBiome(index, v3POS(x, surface_y, z));
s16 heat = m_emerge->env->m_use_weather ? m_emerge->env->getServerMap().updateBlockHeat(m_emerge->env, v3POS(x,node_max.Y,z), nullptr, &heat_cache) : 0;
// Fill ground with stone
v3POS em = vm->m_area.getExtent();
u32 i = vm->m_area.index(x, node_min.Y, z);
for (s16 y = node_min.Y; y <= node_max.Y; y++) {
if (!vm->m_data[i]) {
if (y <= surface_y) {
int index3 = (z - node_min.Z) * zstride + (y - node_min.Y) * ystride + (x - node_min.X) * xstride;
if (cave_noise_threshold && noise_cave_indev->result[index3] > cave_noise_threshold) {
vm->m_data[i] = n_air;
} else {
auto n = (y > water_level - surface_y && bt == BT_DESERT) ? n_desert_stone : layers_get(index3);
bool protect = n.getContent() != CONTENT_AIR;
if (cave_noise_threshold && noise_cave_indev->result[index3] > cave_noise_threshold - 50) {
vm->m_data[i] = protect ? n_stone : n; //cave shell without layers
protect = true;
} else {
vm->m_data[i] = n;
}
if (protect)
vm->m_flags[i] |= VOXELFLAG_CHECKED2; // no cave liquid
}
} else if (y <= water_level) {
vm->m_data[i] = (heat < 0 && y > heat/3) ? n_ice : n_water_source;
if (liquid_pressure && y <= 0)
vm->m_data[i].addLevel(m_emerge->ndef, water_level - y, 1);
} else {
vm->m_data[i] = n_air;
}
}
vm->m_area.add_y(em, i, 1);
}
}
return stone_surface_max_y;
}
virtual void trigger(ServerEnvironment *env, v3POS p, MapNode n,
u32 active_object_count, u32 active_object_count_wider, MapNode neighbor, bool activate) {
ServerMap *map = &env->getServerMap();
INodeDefManager *ndef = env->getGameDef()->ndef();
float heat = map->updateBlockHeat(env, p);
content_t c = map->getNodeTry(p - v3POS(0, -1, 0 )).getContent(); // top
int melt = ((ItemGroupList) ndef->get(n).groups)["melt"];
if (heat >= melt + 1 && (activate || heat >= melt + 40 ||
((myrand_range(heat, melt + 40)) >= (c == CONTENT_AIR ? melt + 10 : melt + 20)))) {
if (ndef->get(n.getContent()).liquid_type == LIQUID_FLOWING || ndef->get(n.getContent()).liquid_type == LIQUID_SOURCE) {
c = map->getNodeTry(p - v3POS(0, 1, 0 )).getContent(); // below
if (c == CONTENT_AIR || c == CONTENT_IGNORE)
return; // do not melt when falling (dirt->dirt_with_grass on air)
}
n.freeze_melt(ndef, +1);
map->setNode(p, n);
env->nodeUpdate(p, 2); //enable after making FAST nodeupdate
}
}
void Map::copy_27_blocks_to_vm(MapBlock * block, VoxelManipulator & vmanip) {
v3POS blockpos = block->getPos();
v3POS blockpos_nodes = blockpos * MAP_BLOCKSIZE;
// Allocate this block + neighbors
vmanip.clear();
VoxelArea voxel_area(blockpos_nodes - v3POS(1, 1, 1) * MAP_BLOCKSIZE,
blockpos_nodes + v3POS(1, 1, 1) * MAP_BLOCKSIZE * 2 - v3POS(1, 1, 1));
vmanip.addArea(voxel_area);
block->copyTo(vmanip);
auto * map = block->getParent();
for(u16 i = 0; i < 26; i++) {
v3POS bp = blockpos + g_26dirs[i];
MapBlock *b = map->getBlockNoCreateNoEx(bp);
if(b)
b->copyTo(vmanip);
}
}
int MapgenV6::generateGround()
{
//TimeTaker timer1("Generating ground level");
MapNode n_air(CONTENT_AIR), n_water_source(c_water_source);
MapNode n_stone(c_stone), n_desert_stone(c_desert_stone);
MapNode n_ice(c_ice);
int stone_surface_max_y = -MAX_MAP_GENERATION_LIMIT;
u32 index = 0;
for (s16 z = node_min.Z; z <= node_max.Z; z++)
for (s16 x = node_min.X; x <= node_max.X; x++, index++) {
// Surface height
s16 surface_y = (s16)baseTerrainLevelFromMap(index);
// Log it
if (surface_y > stone_surface_max_y)
stone_surface_max_y = surface_y;
BiomeV6Type bt = getBiome(v3POS(x, node_min.Y, z));
s16 heat = m_emerge->env->m_use_weather ? m_emerge->env->getServerMap().updateBlockHeat(m_emerge->env, v3POS(x,node_max.Y,z), nullptr, &heat_cache) : 0;
// Fill ground with stone
v3s16 em = vm->m_area.getExtent();
u32 i = vm->m_area.index(x, node_min.Y, z);
for (s16 y = node_min.Y; y <= node_max.Y; y++) {
if (vm->m_data[i].getContent() == CONTENT_IGNORE) {
if (y <= surface_y) {
vm->m_data[i] = (y >= MGV6_DESERT_STONE_BASE - surface_y
&& bt == BT_DESERT) ?
n_desert_stone : n_stone;
} else if (y <= water_level) {
vm->m_data[i] = ((heat < 0 && y > heat/3) || (y >= MGV6_ICE_BASE
&& bt == BT_TUNDRA)) ?
n_ice : n_water_source;
if (liquid_pressure && y <= 0)
vm->m_data[i].addLevel(m_emerge->ndef, water_level - y, 1);
} else {
vm->m_data[i] = n_air;
}
}
vm->m_area.add_y(em, i, 1);
}
}
return stone_surface_max_y;
}
int Mapgen_features::float_islands_generate(const v3POS & node_min, const v3POS & node_max, int min_y, MMVManip *vm) {
int generated = 0;
if (node_min.Y < min_y) return generated;
// originally from http://forum.minetest.net/viewtopic.php?id=4776
float RAR = 0.8 * farscale(0.4, node_min.Y); // 0.4; // Island rarity in chunk layer. -0.4 = thick layer with holes, 0 = 50%, 0.4 = desert rarity, 0.7 = very rare.
float AMPY = 24; // 24; // Amplitude of island centre y variation.
float TGRAD = 24; // 24; // Noise gradient to create top surface. Tallness of island top.
float BGRAD = 24; // 24; // Noise gradient to create bottom surface. Tallness of island bottom.
v3POS p0(node_min.X, node_min.Y, node_min.Z);
float xl = node_max.X - node_min.X;
float yl = node_max.Y - node_min.Y;
float zl = node_max.Z - node_min.Z;
u32 zstride = xl + y_offset;
float midy = node_min.Y + yl * 0.5;
u32 index = 0;
for (int z1 = 0; z1 <= zl; ++z1)
for (int y1 = 0; y1 <= yl; ++y1)
for (int x1 = 0; x1 <= xl; ++x1, ++index) {
int y = y1 + node_min.Y;
u32 index2d = z1 * zstride + x1;
float noise3 = noise_float_islands3->result[index2d];
float pmidy = midy + noise3 / 1.5 * AMPY;
float noise1 = noise_float_islands1->result[index];
float offset = y > pmidy ? (y - pmidy) / TGRAD : (pmidy - y) / BGRAD;
float noise1off = noise1 - offset - RAR;
if (noise1off > 0 && noise1off < 0.7) {
float noise2 = noise_float_islands2->result[index];
if (noise2 - noise1off > -0.7) {
v3POS p = p0 + v3POS(x1, y1, z1);
u32 i = vm->m_area.index(p);
if (!vm->m_area.contains(i))
continue;
// Cancel if not air
if (vm->m_data[i].getContent() != CONTENT_AIR)
continue;
vm->m_data[i] = layers_get(index);
++generated;
}
}
}
return generated;
}
virtual void trigger(ServerEnvironment *env, v3POS p, MapNode n,
u32 active_object_count, u32 active_object_count_wider, MapNode neighbor, bool activate) {
ServerMap *map = &env->getServerMap();
INodeDefManager *ndef = env->getGameDef()->ndef();
float heat = map->updateBlockHeat(env, p);
//heater = rare
content_t c = map->getNodeTry(p - v3POS(0, -1, 0 )).getContent(); // top
//more chance to freeze if air at top
static int water_level = g_settings->getS16("water_level");
bool top_liquid = ndef->get(n).liquid_type > LIQUID_NONE && p.Y > water_level;
int freeze = ((ItemGroupList) ndef->get(n).groups)["freeze"];
if (heat <= freeze - 1 && ((!top_liquid && (activate || (heat <= freeze - 50))) || heat <= freeze - 50 ||
(myrand_range(freeze - 50, heat) <= (freeze + (top_liquid ? -42 : c == CONTENT_AIR ? -10 : -40))))) {
content_t c_self = n.getContent();
// making freeze not annoying, do not freeze random blocks in center of ocean
// todo: any block not water (dont freeze _source near _flowing)
bool allow = activate || heat < freeze - 40;
// todo: make for(...)
if (!allow) {
c = map->getNodeTry(p - v3POS(0, 1, 0 )).getContent(); // below
if (c == CONTENT_AIR || c == CONTENT_IGNORE)
if (ndef->get(n.getContent()).liquid_type == LIQUID_FLOWING || ndef->get(n.getContent()).liquid_type == LIQUID_SOURCE)
return; // do not freeze when falling
if (c != c_self && c != CONTENT_IGNORE) allow = 1;
if (!allow) {
c = map->getNodeTry(p - v3POS(1, 0, 0 )).getContent(); // right
if (c != c_self && c != CONTENT_IGNORE) allow = 1;
if (!allow) {
c = map->getNodeTry(p - v3POS(-1, 0, 0 )).getContent(); // left
if (c != c_self && c != CONTENT_IGNORE) allow = 1;
if (!allow) {
c = map->getNodeTry(p - v3POS(0, 0, 1 )).getContent(); // back
if (c != c_self && c != CONTENT_IGNORE) allow = 1;
if (!allow) {
c = map->getNodeTry(p - v3POS(0, 0, -1)).getContent(); // front
if (c != c_self && c != CONTENT_IGNORE) allow = 1;
}
}
}
}
}
if (allow) {
n.freeze_melt(ndef, -1);
map->setNode(p, n);
}
}
}
void MapgenV7::generateBaseTerrain(s16 *stone_surface_min_y, s16 *stone_surface_max_y)
{
MapNode n_air(CONTENT_AIR);
MapNode n_stone(c_stone);
MapNode n_water(c_water_source);
MapNode n_ice(c_ice);
v3s16 em = vm->m_area.getExtent();
s16 surface_min_y = MAX_MAP_GENERATION_LIMIT;
s16 surface_max_y = -MAX_MAP_GENERATION_LIMIT;
u32 index = 0;
for (s16 z = node_min.Z; z <= node_max.Z; z++)
for (s16 x = node_min.X; x <= node_max.X; x++, index++) {
float surface_height = baseTerrainLevelFromMap(index);
s16 surface_y = (s16)surface_height;
heightmap[index] = surface_y;
ridge_heightmap[index] = surface_y;
if (surface_y < surface_min_y)
surface_min_y = surface_y;
if (surface_y > surface_max_y)
surface_max_y = surface_y;
s16 heat = m_emerge->env->m_use_weather ? m_emerge->env->getServerMap().updateBlockHeat(m_emerge->env, v3POS(x,node_max.Y,z), nullptr, &heat_cache) : 0;
u32 i = vm->m_area.index(x, node_min.Y - 1, z);
for (s16 y = node_min.Y - 1; y <= node_max.Y + 1; y++) {
if (vm->m_data[i].getContent() == CONTENT_IGNORE) {
if (y <= surface_y) {
int index3 = (z - node_min.Z) * zstride +
(y - node_min.Y + 1) * ystride +
(x - node_min.X);
vm->m_data[i] = layers_get(index3);
}
else if (y <= water_level)
{
vm->m_data[i] = (heat < 0 && y > heat/3) ? n_ice : n_water;
if (liquid_pressure && y <= 0)
vm->m_data[i].addLevel(m_emerge->ndef, water_level - y, 1);
}
else
vm->m_data[i] = n_air;
}
vm->m_area.add_y(em, i, 1);
}
}
*stone_surface_min_y = surface_min_y;
*stone_surface_max_y = surface_max_y;
}
bool Map::propagateSunlight(v3POS pos, std::set<v3POS> & light_sources,
bool remove_light) {
MapBlock *block = getBlockNoCreateNoEx(pos);
INodeDefManager *nodemgr = m_gamedef->ndef();
// Whether the sunlight at the top of the bottom block is valid
bool block_below_is_valid = true;
v3POS pos_relative = block->getPosRelative();
for(s16 x = 0; x < MAP_BLOCKSIZE; ++x) {
for(s16 z = 0; z < MAP_BLOCKSIZE; ++z) {
bool no_sunlight = false;
// Check if node above block has sunlight
MapNode n = getNode(pos_relative + v3POS(x, MAP_BLOCKSIZE, z));
if (n) {
if(n.getLight(LIGHTBANK_DAY, m_gamedef->ndef()) != LIGHT_SUN) {
no_sunlight = true;
}
} else {
// NOTE: This makes over-ground roofed places sunlighted
// Assume sunlight, unless is_underground==true
if(block->getIsUnderground()) {
no_sunlight = true;
} else {
MapNode n = block->getNode(v3POS(x, MAP_BLOCKSIZE - 1, z));
if(n && m_gamedef->ndef()->get(n).sunlight_propagates == false)
no_sunlight = true;
}
// NOTE: As of now, this just would make everything dark.
// No sunlight here
//no_sunlight = true;
}
s16 y = MAP_BLOCKSIZE - 1;
// This makes difference to diminishing in water.
//bool stopped_to_solid_object = false;
u8 current_light = no_sunlight ? 0 : LIGHT_SUN;
for(; y >= 0; --y) {
v3POS pos(x, y, z);
MapNode n = block->getNode(pos);
if(current_light == 0) {
// Do nothing
} else if(current_light == LIGHT_SUN && nodemgr->get(n).sunlight_propagates) {
// Do nothing: Sunlight is continued
} else if(nodemgr->get(n).light_propagates == false) {
// A solid object is on the way.
//stopped_to_solid_object = true;
// Light stops.
current_light = 0;
} else {
// Diminish light
current_light = diminish_light(current_light);
}
u8 old_light = n.getLight(LIGHTBANK_DAY, nodemgr);
if(current_light > old_light || remove_light) {
n.setLight(LIGHTBANK_DAY, current_light, nodemgr);
block->setNode(pos, n);
}
if(diminish_light(current_light) != 0) {
light_sources.insert(pos_relative + pos);
}
}
// Whether or not the block below should see LIGHT_SUN
bool sunlight_should_go_down = (current_light == LIGHT_SUN);
/*
If the block below hasn't already been marked invalid:
Check if the node below the block has proper sunlight at top.
If not, the block below is invalid.
Ignore non-transparent nodes as they always have no light
*/
if(block_below_is_valid) {
MapNode n = getNode(pos_relative + v3POS(x, -1, z));
if (n) {
if(nodemgr->get(n).light_propagates) {
if(n.getLight(LIGHTBANK_DAY, nodemgr) == LIGHT_SUN
&& sunlight_should_go_down == false)
block_below_is_valid = false;
else if(n.getLight(LIGHTBANK_DAY, nodemgr) != LIGHT_SUN
&& sunlight_should_go_down == true)
block_below_is_valid = false;
}
} else {
// Just no block below, no need to panic.
}
}
}
}
return block_below_is_valid;
}
int MapgenMath::generateTerrain() {
MapNode n_ice(c_ice);
u32 index = 0;
v3POS em = vm->m_area.getExtent();
auto zstride_1d = csize.X * (csize.Y + 1);
/* debug
v3f vec0 = (v3f(node_min.X, node_min.Y, node_min.Z) - center) * scale ;
errorstream << " X=" << node_min.X << " Y=" << node_min.Y << " Z=" << node_min.Z
//<< " N="<< mengersponge(vec0.X, vec0.Y, vec0.Z, distance, iterations)
<< " N=" << (*func)(vec0.X, vec0.Y, vec0.Z, distance, iterations)
<< " Sc=" << scale << " gen=" << params["generator"].asString() << " J=" << Json::FastWriter().write(params) << std::endl;
*/
//errorstream << Json::StyledWriter().write( mg_params->params ).c_str()<< std::endl;
//errorstream << " iterations="<<iterations<< " scale="<<scale <<" invert="<<invert<< std::endl;
#if USE_MANDELBULBER
v3f vec0(node_min.X, node_min.Y, node_min.Z);
vec0 = (vec0 - center) * scale;
/*
errorstream << " X=" << node_min.X << " Y=" << node_min.Y << " Z=" << node_min.Z
<< " N=" << Compute<normal_mode>(CVector3(vec0.X, vec0.Y, vec0.Z), mg_params->par)
//<<" F="<< Compute<fake_AO>(CVector3(node_min.X,node_min.Y,node_min.Z), par)
//<<" L="<<node_min.getLength()<< " -="<<node_min.getLength() - Compute<normal_mode>(CVector3(node_min.X,node_min.Y,node_min.Z), par)
<< " Sc=" << scale << " internal=" << internal
<< std::endl;
*/
#endif
double d = 0;
for (s16 z = node_min.Z; z <= node_max.Z; z++) {
for (s16 x = node_min.X; x <= node_max.X; x++, index++) {
s16 heat = m_emerge->env->m_use_weather ? m_emerge->env->getServerMap().updateBlockHeat(m_emerge->env, v3POS(x,node_max.Y,z), nullptr, &heat_cache) : 0;
u32 i = vm->m_area.index(x, node_min.Y, z);
for (s16 y = node_min.Y; y <= node_max.Y; y++) {
v3f vec = (v3f(x, y, z) - center) * scale ;
if (invert_xy)
std::swap(vec.X, vec.Y);
if (invert_yz)
std::swap(vec.Y, vec.Z);
#if USE_MANDELBULBER
if (!internal)
d = Compute<normal_mode>(CVector3(vec.X, vec.Y, vec.Z), mg_params->par);
else
#endif
if (internal)
d = (*func)(vec.X, vec.Y, vec.Z, scale.X, iterations);
if ((!invert && d > 0) || (invert && d == 0) ) {
if (!vm->m_data[i]) {
//vm->m_data[i] = (y > water_level + biome->filler) ?
// MapNode(biome->c_filler) : n_stone;
if (invert) {
int index3 = (z - node_min.Z) * zstride_1d +
(y - node_min.Y) * ystride +
(x - node_min.X);
vm->m_data[i] = Mapgen_features::layers_get(index3);
} else {
vm->m_data[i] = layers_get(d, result_max);
}
// vm->m_data[i] = (y > water_level + biome->filler) ?
// MapNode(biome->c_filler) : layers_get(d, result_max);
}
} else if (y <= water_level) {
vm->m_data[i] = (heat < 0 && y > heat/3) ? n_ice : n_water;
} else {
vm->m_data[i] = n_air;
}
vm->m_area.add_y(em, i, 1);
}
}
}
return 0;
}
};
struct NodeNeighbor {
MapNode node;
NeighborType type;
v3POS pos;
content_t content;
bool liquid; //can liquid
bool infinity;
int weight;
int drop; //drop by liquid
};
const v3POS liquid_flow_dirs[7] = {
// +right, +top, +back
v3POS( 0, -1, 0), // 0 bottom
v3POS( 0, 0, 0), // 1 self
v3POS( 0, 0, 1), // 2 back
v3POS( 0, 0, -1), // 3 front
v3POS( 1, 0, 0), // 4 right
v3POS(-1, 0, 0), // 5 left
v3POS( 0, 1, 0) // 6 top
};
// when looking around we must first check self node for correct type definitions
const s8 liquid_explore_map[7] = {1, 0, 6, 2, 3, 4, 5};
const s8 liquid_random_map[4][7] = {
{0, 1, 2, 3, 4, 5, 6},
{0, 1, 4, 3, 5, 2, 6},
{0, 1, 3, 5, 4, 2, 6},
{0, 1, 5, 3, 2, 4, 6}
MgStoneType MapgenV7::generateBiomes(float *heat_map, float *humidity_map)
{
v3s16 em = vm->m_area.getExtent();
u32 index = 0;
MgStoneType stone_type = STONE;
for (s16 z = node_min.Z; z <= node_max.Z; z++)
for (s16 x = node_min.X; x <= node_max.X; x++, index++) {
Biome *biome = NULL;
u16 depth_top = 0;
u16 base_filler = 0;
u16 depth_water_top = 0;
u32 vi = vm->m_area.index(x, node_max.Y, z);
// Check node at base of mapchunk above, either a node of a previously
// generated mapchunk or if not, a node of overgenerated base terrain.
content_t c_above = vm->m_data[vi + em.X].getContent();
bool air_above = c_above == CONTENT_AIR;
bool water_above = c_above == c_water_source;
// If there is air or water above enable top/filler placement, otherwise force
// nplaced to stone level by setting a number exceeding any possible filler depth.
u16 nplaced = (air_above || water_above) ? 0 : U16_MAX;
s16 heat = m_emerge->env->m_use_weather ? m_emerge->env->getServerMap().updateBlockHeat(m_emerge->env, v3POS(x,node_max.Y,z), NULL, &heat_cache) : 0;
for (s16 y = node_max.Y; y >= node_min.Y; y--) {
content_t c = vm->m_data[vi].getContent();
bool cc_stone = (c != CONTENT_AIR && c != c_water_source && c != CONTENT_IGNORE);
// Biome is recalculated each time an upper surface is detected while
// working down a column. The selected biome then remains in effect for
// all nodes below until the next surface and biome recalculation.
// Biome is recalculated:
// 1. At the surface of stone below air or water.
// 2. At the surface of water below air.
// 3. When stone or water is detected but biome has not yet been calculated.
if ((cc_stone && (air_above || water_above || !biome)) ||
(c == c_water_source && (air_above || !biome))) {
biome = bmgr->getBiome(heat_map[index], humidity_map[index], y);
depth_top = biome->depth_top;
base_filler = MYMAX(depth_top + biome->depth_filler
+ noise_filler_depth->result[index], 0);
depth_water_top = biome->depth_water_top;
// Detect stone type for dungeons during every biome calculation.
// This is more efficient than detecting per-node and will not
// miss any desert stone or sandstone biomes.
if (biome->c_stone == c_desert_stone)
stone_type = DESERT_STONE;
else if (biome->c_stone == c_sandstone)
stone_type = SANDSTONE;
}
if (cc_stone && biome && (c == biome->c_ice || c == biome->c_water || c == biome->c_water_top))
cc_stone = false;
if (cc_stone) {
content_t c_below = vm->m_data[vi - em.X].getContent();
// If the node below isn't solid, make this node stone, so that
// any top/filler nodes above are structurally supported.
// This is done by aborting the cycle of top/filler placement
// immediately by forcing nplaced to stone level.
if (c_below == CONTENT_AIR || c_below == c_water_source)
nplaced = U16_MAX;
if (nplaced < depth_top) {
vm->m_data[vi] = MapNode(
((y < water_level) /* && (biome->c_top == c_dirt_with_grass)*/ )
? biome->c_top
: heat < -3
? biome->c_top_cold
: biome->c_top);
nplaced++;
} else if (nplaced < base_filler) {
vm->m_data[vi] = MapNode(biome->c_filler);
nplaced++;
} else if (nplaced < (depth_top+base_filler+depth_water_top)){
vm->m_data[vi] = MapNode(biome->c_stone);
}
air_above = false;
water_above = false;
} else if (c == c_water_source) {
bool ice = heat < 0 && y > water_level + heat/4;
vm->m_data[vi] = MapNode((y > (s32)(water_level - depth_water_top)) ?
(ice ? biome->c_ice : biome->c_water_top) : ice ? biome->c_ice : biome->c_water);
nplaced = 0; // Enable top/filler placement for next surface
air_above = false;
water_above = true;
} else if (c == CONTENT_AIR) {
nplaced = 0; // Enable top/filler placement for next surface
air_above = true;
water_above = false;
} else { // Possible various nodes overgenerated from neighbouring mapchunks
nplaced = U16_MAX; // Disable top/filler placement
air_above = false;
water_above = false;
}
vm->m_area.add_y(em, vi, -1);
}
}
return stone_type;
}
void MapgenV7::generateRidgeTerrain()
{
if (node_max.Y < water_level)
return;
MapNode n_water(c_water_source);
MapNode n_ice(c_ice);
MapNode n_air(CONTENT_AIR);
u32 index = 0;
float width = 0.2; // TODO: figure out acceptable perlin noise values
for (s16 z = node_min.Z; z <= node_max.Z; z++)
for (s16 y = node_min.Y - 1; y <= node_max.Y + 1; y++) {
u32 vi = vm->m_area.index(node_min.X, y, z);
for (s16 x = node_min.X; x <= node_max.X; x++, index++, vi++) {
int j = (z - node_min.Z) * csize.X + (x - node_min.X);
if (heightmap[j] < water_level - 16)
continue;
float uwatern = noise_ridge_uwater->result[j] * 2;
if (fabs(uwatern) > width)
continue;
float altitude = y - water_level;
float height_mod = (altitude + 17) / 2.5;
float width_mod = width - fabs(uwatern);
float nridge = noise_ridge->result[index] * MYMAX(altitude, 0) / 7.0;
if (nridge + width_mod * height_mod < 0.6)
continue;
if (y < ridge_heightmap[j])
ridge_heightmap[j] = y - 1;
s16 heat = m_emerge->env->m_use_weather ? m_emerge->env->getServerMap().updateBlockHeat(m_emerge->env, v3POS(x,node_max.Y,z), NULL, &heat_cache) : 0;
MapNode n_water_or_ice = (heat < 0 && y > water_level + heat/4) ? n_ice : n_water;
vm->m_data[vi] = (y > water_level) ? n_air : n_water_or_ice;
}
}
}
int RemoteClient::GetNextBlocks (
ServerEnvironment *env,
EmergeManager * emerge,
float dtime,
double m_uptime,
std::vector<PrioritySortedBlockTransfer> &dest)
{
DSTACK(FUNCTION_NAME);
auto lock = lock_unique_rec();
if (!lock->owns_lock())
return 0;
// Increment timers
m_nothing_to_send_pause_timer -= dtime;
m_nearest_unsent_reset_timer += dtime;
m_time_from_building += dtime;
if (m_nearest_unsent_reset) {
m_nearest_unsent_reset = 0;
m_nearest_unsent_reset_timer = 999;
m_nothing_to_send_pause_timer = 0;
m_time_from_building = 999;
}
if(m_nothing_to_send_pause_timer >= 0)
return 0;
Player *player = env->getPlayer(peer_id);
// This can happen sometimes; clients and players are not in perfect sync.
if(player == NULL)
return 0;
v3f playerpos = player->getPosition();
v3f playerspeed = player->getSpeed();
if(playerspeed.getLength() > 1000.0*BS) //cheater or bug, ignore him
return 0;
v3f playerspeeddir(0,0,0);
if(playerspeed.getLength() > 1.0*BS)
playerspeeddir = playerspeed / playerspeed.getLength();
// Predict to next block
v3f playerpos_predicted = playerpos + playerspeeddir*MAP_BLOCKSIZE*BS;
v3s16 center_nodepos = floatToInt(playerpos_predicted, BS);
v3s16 center = getNodeBlockPos(center_nodepos);
// Camera position and direction
v3f camera_pos = player->getEyePosition();
v3f camera_dir = v3f(0,0,1);
camera_dir.rotateYZBy(player->getPitch());
camera_dir.rotateXZBy(player->getYaw());
//infostream<<"camera_dir=("<<camera_dir<<")"<< " camera_pos="<<camera_pos<<std::endl;
/*
Get the starting value of the block finder radius.
*/
if(m_last_center != center)
{
m_last_center = center;
m_nearest_unsent_reset_timer = 999;
}
if (m_last_direction.getDistanceFrom(camera_dir)>0.4) { // 1 = 90deg
m_last_direction = camera_dir;
m_nearest_unsent_reset_timer = 999;
}
/*infostream<<"m_nearest_unsent_reset_timer="
<<m_nearest_unsent_reset_timer<<std::endl;*/
// Reset periodically to workaround for some bugs or stuff
if(m_nearest_unsent_reset_timer > 120.0)
{
m_nearest_unsent_reset_timer = 0;
m_nearest_unsent_d = 0;
m_nearest_unsent_reset = 0;
//infostream<<"Resetting m_nearest_unsent_d for "<<peer_id<<std::endl;
}
//s16 last_nearest_unsent_d = m_nearest_unsent_d;
s16 d_start = m_nearest_unsent_d;
//infostream<<"d_start="<<d_start<<std::endl;
static const u16 max_simul_sends_setting = g_settings->getU16
("max_simultaneous_block_sends_per_client");
static const u16 max_simul_sends_usually = max_simul_sends_setting;
/*
Check the time from last addNode/removeNode.
Decrease send rate if player is building stuff.
*/
static const auto full_block_send_enable_min_time_from_building = g_settings->getFloat("full_block_send_enable_min_time_from_building");
if(m_time_from_building < full_block_send_enable_min_time_from_building)
{
/*
max_simul_sends_usually
= LIMITED_MAX_SIMULTANEOUS_BLOCK_SENDS;
*/
if(d_start<=1)
d_start=2;
m_nearest_unsent_reset_timer = 999; //magical number more than ^ other number 120 - need to reset d on next iteration
}
/*
Number of blocks sending + number of blocks selected for sending
*/
u32 num_blocks_selected = 0;
u32 num_blocks_sending = 0;
/*
next time d will be continued from the d from which the nearest
unsent block was found this time.
This is because not necessarily any of the blocks found this
time are actually sent.
*/
s32 new_nearest_unsent_d = -1;
static const auto max_block_send_distance = g_settings->getS16("max_block_send_distance");
s16 full_d_max = max_block_send_distance;
if (wanted_range) {
s16 wanted_blocks = wanted_range / MAP_BLOCKSIZE + 1;
if (wanted_blocks < full_d_max)
full_d_max = wanted_blocks;
}
s16 d_max = full_d_max;
static const s16 d_max_gen = g_settings->getS16("max_block_generate_distance");
// Don't loop very much at a time
s16 max_d_increment_at_time = 10;
if(d_max > d_start + max_d_increment_at_time)
d_max = d_start + max_d_increment_at_time;
/*if(d_max_gen > d_start+2)
d_max_gen = d_start+2;*/
//infostream<<"Starting from "<<d_start<<std::endl;
s32 nearest_emerged_d = -1;
s32 nearest_emergefull_d = -1;
s32 nearest_sent_d = -1;
//bool queue_is_full = false;
f32 speed_in_blocks = (playerspeed/(MAP_BLOCKSIZE*BS)).getLength();
int blocks_occlusion_culled = 0;
static const bool server_occlusion = g_settings->getBool("server_occlusion");
bool occlusion_culling_enabled = server_occlusion;
auto cam_pos_nodes = floatToInt(playerpos, BS);
auto nodemgr = env->getGameDef()->getNodeDefManager();
MapNode n;
{
#if !ENABLE_THREADS
auto lock = env->getServerMap().m_nothread_locker.lock_shared_rec();
#endif
n = env->getMap().getNodeTry(cam_pos_nodes);
}
if(n && nodemgr->get(n).solidness == 2)
occlusion_culling_enabled = false;
unordered_map_v3POS<bool> occlude_cache;
s16 d;
for(d = d_start; d <= d_max; d++) {
/*errorstream<<"checking d="<<d<<" for "
<<server->getPlayerName(peer_id)<<std::endl;*/
//infostream<<"RemoteClient::SendBlocks(): d="<<d<<" d_start="<<d_start<<" d_max="<<d_max<<" d_max_gen="<<d_max_gen<<std::endl;
std::vector<v3POS> list;
if (d > 2 && d == d_start && m_nearest_unsent_reset_timer != 999) { // oops, again magic number from up ^
list.push_back(v3POS(0,0,0));
}
bool can_skip = d > 1;
// Fast fall/move optimize. speed_in_blocks now limited to 6.4
if (speed_in_blocks>0.8 && d <= 2) {
can_skip = false;
if (d == 0) {
for(s16 addn = 0; addn < (speed_in_blocks+1)*2; ++addn)
list.push_back(floatToInt(playerspeeddir*addn, 1));
} else if (d == 1) {
for(s16 addn = 0; addn < (speed_in_blocks+1)*1.5; ++addn) {
list.push_back(floatToInt(playerspeeddir*addn, 1) + v3POS( 0, 0, 1)); // back
list.push_back(floatToInt(playerspeeddir*addn, 1) + v3POS( -1, 0, 0)); // left
list.push_back(floatToInt(playerspeeddir*addn, 1) + v3POS( 1, 0, 0)); // right
list.push_back(floatToInt(playerspeeddir*addn, 1) + v3POS( 0, 0, -1)); // front
}
} else if (d == 2) {
for(s16 addn = 0; addn < (speed_in_blocks+1)*1.5; ++addn) {
list.push_back(floatToInt(playerspeeddir*addn, 1) + v3POS( -1, 0, 1)); // back left
list.push_back(floatToInt(playerspeeddir*addn, 1) + v3POS( 1, 0, 1)); // left right
list.push_back(floatToInt(playerspeeddir*addn, 1) + v3POS( -1, 0, -1)); // right left
list.push_back(floatToInt(playerspeeddir*addn, 1) + v3POS( 1, 0, -1)); // front right
}
}
} else {
/*
Get the border/face dot coordinates of a "d-radiused"
box
*/
list = FacePositionCache::getFacePositions(d);
}
for(auto li=list.begin(); li!=list.end(); ++li)
{
v3POS p = *li + center;
/*
Send throttling
- Don't allow too many simultaneous transfers
- EXCEPT when the blocks are very close
Also, don't send blocks that are already flying.
*/
// Start with the usual maximum
u16 max_simul_dynamic = max_simul_sends_usually;
// If block is very close, allow full maximum
if(d <= BLOCK_SEND_DISABLE_LIMITS_MAX_D)
max_simul_dynamic = max_simul_sends_setting;
// Don't select too many blocks for sending
if (num_blocks_selected + num_blocks_sending >= max_simul_dynamic) {
//queue_is_full = true;
goto queue_full_break;
}
/*
Do not go over-limit
*/
if (blockpos_over_limit(p))
continue;
// If this is true, inexistent block will be made from scratch
bool generate = d <= d_max_gen;
{
/*// Limit the generating area vertically to 2/3
if(abs(p.Y - center.Y) > d_max_gen - d_max_gen / 3)
generate = false;*/
/* maybe good idea (if not use block culling) but brokes far (25+) area generate by flooding emergequeue with no generate blocks
// Limit the send area vertically to 1/2
if(can_skip && abs(p.Y - center.Y) > full_d_max / 2)
generate = false;
*/
}
//infostream<<"d="<<d<<std::endl;
/*
Don't generate or send if not in sight
FIXME This only works if the client uses a small enough
FOV setting. The default of 72 degrees is fine.
*/
float camera_fov = ((fov+5)*M_PI/180) * 4./3.;
if(can_skip && isBlockInSight(p, camera_pos, camera_dir, camera_fov, 10000*BS) == false)
{
continue;
}
/*
Don't send already sent blocks
*/
unsigned int block_sent = 0;
{
auto lock = m_blocks_sent.lock_shared_rec();
block_sent = m_blocks_sent.find(p) != m_blocks_sent.end() ? m_blocks_sent.get(p) : 0;
}
if(block_sent > 0 && (/* (block_overflow && d>1) || */ block_sent + (d <= 2 ? 1 : d*d*d) > m_uptime)) {
continue;
}
/*
Check if map has this block
*/
MapBlock *block;
{
#if !ENABLE_THREADS
auto lock = env->getServerMap().m_nothread_locker.lock_shared_rec();
#endif
block = env->getMap().getBlockNoCreateNoEx(p);
}
bool surely_not_found_on_disk = false;
bool block_is_invalid = false;
if(block != NULL)
{
if (d > 3 && block->content_only == CONTENT_AIR) {
continue;
}
if (block_sent > 0 && block_sent >= block->m_changed_timestamp) {
continue;
}
if (occlusion_culling_enabled) {
ScopeProfiler sp(g_profiler, "SMap: Occusion calls");
//Occlusion culling
auto cpn = p*MAP_BLOCKSIZE;
// No occlusion culling when free_move is on and camera is
// inside ground
cpn += v3POS(MAP_BLOCKSIZE/2, MAP_BLOCKSIZE/2, MAP_BLOCKSIZE/2);
float step = 1;
float stepfac = 1.3;
float startoff = 5;
float endoff = -MAP_BLOCKSIZE;
v3POS spn = cam_pos_nodes + v3POS(0,0,0);
s16 bs2 = MAP_BLOCKSIZE/2 + 1;
u32 needed_count = 1;
#if !ENABLE_THREADS
auto lock = env->getServerMap().m_nothread_locker.lock_shared_rec();
#endif
//VERY BAD COPYPASTE FROM clientmap.cpp!
if( d >= 1 &&
occlusion_culling_enabled &&
isOccluded(&env->getMap(), spn, cpn + v3POS(0,0,0),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(&env->getMap(), spn, cpn + v3POS(bs2,bs2,bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(&env->getMap(), spn, cpn + v3POS(bs2,bs2,-bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(&env->getMap(), spn, cpn + v3POS(bs2,-bs2,bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(&env->getMap(), spn, cpn + v3POS(bs2,-bs2,-bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(&env->getMap(), spn, cpn + v3POS(-bs2,bs2,bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(&env->getMap(), spn, cpn + v3POS(-bs2,bs2,-bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(&env->getMap(), spn, cpn + v3POS(-bs2,-bs2,bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(&env->getMap(), spn, cpn + v3POS(-bs2,-bs2,-bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache)
)
{
//infostream<<" occlusion player="<<cam_pos_nodes<<" d="<<d<<" block="<<cpn<<" total="<<blocks_occlusion_culled<<"/"<<num_blocks_selected<<std::endl;
g_profiler->add("SMap: Occlusion skip", 1);
blocks_occlusion_culled++;
continue;
}
}
// Reset usage timer, this block will be of use in the future.
block->resetUsageTimer();
if (block->getLightingExpired()) {
//env->getServerMap().lighting_modified_blocks.set(p, nullptr);
env->getServerMap().lighting_modified_add(p, d);
}
if (block->lighting_broken > 0 && (block_sent || d > 0))
continue;
// Block is valid if lighting is up-to-date and data exists
if(block->isValid() == false)
{
block_is_invalid = true;
}
if(block->isGenerated() == false)
{
continue;
}
/*
If block is not close, don't send it unless it is near
ground level.
Block is near ground level if night-time mesh
differs from day-time mesh.
*/
/*
if(d >= 4)
{
if(block->getDayNightDiff() == false)
continue;
}
*/
}
/*
If block has been marked to not exist on disk (dummy)
and generating new ones is not wanted, skip block.
*/
if(generate == false && surely_not_found_on_disk == true)
{
// get next one.
continue;
}
/*
Add inexistent block to emerge queue.
*/
if(block == NULL || surely_not_found_on_disk || block_is_invalid)
{
//infostream<<"start gen d="<<d<<" p="<<p<<" notfound="<<surely_not_found_on_disk<<" invalid="<< block_is_invalid<<" block="<<block<<" generate="<<generate<<std::endl;
if (emerge->enqueueBlockEmerge(peer_id, p, generate)) {
if (nearest_emerged_d == -1)
nearest_emerged_d = d;
} else {
if (nearest_emergefull_d == -1)
nearest_emergefull_d = d;
goto queue_full_break;
}
// get next one.
continue;
}
if(nearest_sent_d == -1)
nearest_sent_d = d;
/*
Add block to send queue
*/
PrioritySortedBlockTransfer q((float)d, p, peer_id);
dest.push_back(q);
num_blocks_selected += 1;
}
}
queue_full_break:
//infostream<<"Stopped at "<<d<<" d_start="<<d_start<< " d_max="<<d_max<<" nearest_emerged_d="<<nearest_emerged_d<<" nearest_emergefull_d="<<nearest_emergefull_d<< " new_nearest_unsent_d="<<new_nearest_unsent_d<< " sel="<<num_blocks_selected<< "+"<<num_blocks_sending << " culled=" << blocks_occlusion_culled <<" cEN="<<occlusion_culling_enabled<<std::endl;
num_blocks_selected += num_blocks_sending;
if(!num_blocks_selected && d_start <= d) {
//new_nearest_unsent_d = 0;
m_nothing_to_send_pause_timer = 1.0;
}
// If nothing was found for sending and nothing was queued for
// emerging, continue next time browsing from here
if(nearest_emerged_d != -1){
new_nearest_unsent_d = nearest_emerged_d;
} else if(nearest_emergefull_d != -1){
new_nearest_unsent_d = nearest_emergefull_d;
} else {
if(d > full_d_max){
new_nearest_unsent_d = 0;
m_nothing_to_send_pause_timer = 1.0;
} else {
if(nearest_sent_d != -1)
new_nearest_unsent_d = nearest_sent_d;
else
new_nearest_unsent_d = d;
}
}
if(new_nearest_unsent_d != -1)
m_nearest_unsent_d = new_nearest_unsent_d;
return num_blocks_selected - num_blocks_sending;
}
void CircuitElement::findConnectedWithFace(std::vector <std::pair <std::list<CircuitElement>::iterator, u8> >& connected,
Map* map, INodeDefManager* ndef, v3POS pos, u8 face,
std::map<v3POS, std::list<CircuitElement>::iterator>& pos_to_iterator,
bool connected_faces[6]) {
static v3POS directions[6] = {v3POS(0, 1, 0),
v3POS(0, -1, 0),
v3POS(1, 0, 0),
v3POS(-1, 0, 0),
v3POS(0, 0, 1),
v3POS(0, 0, -1),
};
// First - wire pos, second - acceptable faces
std::queue <std::pair <v3POS, u8> > q;
v3POS current_pos, next_pos;
MapNode next_node, current_node;
// used[pos] = or of all faces, that are already processed
std::map <v3POS, u8> used;
u8 face_id = FACE_TO_SHIFT(face);
connected_faces[face_id] = true;
used[pos] = face;
current_node = map->getNodeNoEx(pos);
const ContentFeatures& first_node_features = ndef->get(current_node);
face = rotateFace(current_node, first_node_features, face);
face_id = FACE_TO_SHIFT(face);
current_pos = pos + directions[face_id];
current_node = map->getNodeNoEx(current_pos);
const ContentFeatures& current_node_features = ndef->get(current_node);
u8 real_face = revRotateFace(current_node, current_node_features, face);
u8 real_face_id = FACE_TO_SHIFT(real_face);
if(current_node_features.is_wire || current_node_features.is_wire_connector) {
q.push(std::make_pair(current_pos, current_node_features.wire_connections[real_face_id]));
while(!q.empty()) {
current_pos = q.front().first;
u8 acceptable_faces = q.front().second;
q.pop();
current_node = map->getNodeNoEx(current_pos);
const ContentFeatures& current_node_features = ndef->get(current_node);
for(int i = 0; i < 6; ++i) {
u8 real_face = revRotateFace(current_node, current_node_features, SHIFT_TO_FACE(i));
if(acceptable_faces & real_face) {
used[current_pos] |= real_face;
next_pos = current_pos + directions[i];
next_node = map->getNodeNoEx(next_pos);
const ContentFeatures& node_features = ndef->get(next_node);
u8 next_real_face = revRotateFace(next_node, node_features, OPPOSITE_FACE(SHIFT_TO_FACE(i)));
u8 next_real_shift = FACE_TO_SHIFT(next_real_face);
// If start element, mark some of it's faces
if(next_pos == pos) {
connected_faces[next_real_shift] = true;
}
auto next_used_iterator = used.find(next_pos);
bool is_part_of_circuit = node_features.is_wire_connector || node_features.is_circuit_element ||
(node_features.is_wire && (next_node.getContent() == current_node.getContent()));
bool not_used = (next_used_iterator == used.end()) ||
!(next_used_iterator->second & next_real_face);
if(is_part_of_circuit && not_used) {
if(node_features.is_circuit_element) {
connected.push_back(std::make_pair(pos_to_iterator[next_pos], next_real_shift));
} else {
q.push(std::make_pair(next_pos, node_features.wire_connections[next_real_shift]));
}
if(next_used_iterator != used.end()) {
next_used_iterator->second |= next_real_face;
} else {
used[next_pos] = next_real_face;
}
}
}
}
}
} else if(current_node_features.is_circuit_element) {
connected.push_back(std::make_pair(pos_to_iterator[current_pos], OPPOSITE_SHIFT(real_face_id)));
}
}
void MapgenV6::placeTreesAndJungleGrass()
{
//TimeTaker t("placeTrees");
PseudoRandom grassrandom(blockseed + 53);
content_t c_sand = ndef->getId("mapgen_sand");
content_t c_junglegrass = ndef->getId("mapgen_junglegrass");
// if we don't have junglegrass, don't place cignore... that's bad
if (c_junglegrass == CONTENT_IGNORE)
c_junglegrass = CONTENT_AIR;
MapNode n_junglegrass(c_junglegrass);
v3s16 em = vm->m_area.getExtent();
// Divide area into parts
s16 div = 8;
s16 sidelen = central_area_size.X / div;
double area = sidelen * sidelen;
// N.B. We must add jungle grass first, since tree leaves will
// obstruct the ground, giving us a false ground level
for (s16 z0 = 0; z0 < div; z0++)
for (s16 x0 = 0; x0 < div; x0++) {
// Center position of part of division
v2s16 p2d_center(
node_min.X + sidelen / 2 + sidelen * x0,
node_min.Z + sidelen / 2 + sidelen * z0
);
// Minimum edge of part of division
v2s16 p2d_min(
node_min.X + sidelen * x0,
node_min.Z + sidelen * z0
);
// Maximum edge of part of division
v2s16 p2d_max(
node_min.X + sidelen + sidelen * x0 - 1,
node_min.Z + sidelen + sidelen * z0 - 1
);
// Get biome at center position of part of division
BiomeV6Type bt = getBiome(v3POS(p2d_center.X, node_min.Y, p2d_center.Y));
// Amount of trees
float humidity = getHumidity(v3POS(p2d_center.X, node_max.Y, p2d_center.Y));
s32 tree_count;
if (bt == BT_JUNGLE || bt == BT_TAIGA || bt == BT_NORMAL) {
tree_count = area * getTreeAmount(p2d_center) * ((humidity + 1)/2.0);
if (bt == BT_JUNGLE)
tree_count *= 4;
} else {
tree_count = 0;
}
if (node_max.Y < water_level)
tree_count /= 2;
// Add jungle grass
if (bt == BT_JUNGLE) {
u32 grass_count = 5 * humidity * tree_count;
for (u32 i = 0; i < grass_count; i++) {
s16 x = grassrandom.range(p2d_min.X, p2d_max.X);
s16 z = grassrandom.range(p2d_min.Y, p2d_max.Y);
/* wtf
int mapindex = central_area_size.X * (z - node_min.Z)
+ (x - node_min.X);
s16 y = heightmap[mapindex];
*/
s16 y = findGroundLevelFull(v2s16(x, z));
if (y < water_level)
continue;
u32 vi = vm->m_area.index(x, y, z);
// place on dirt_with_grass, since we know it is exposed to sunlight
if (vm->m_data[vi].getContent() == c_dirt_with_grass) {
vm->m_area.add_y(em, vi, 1);
vm->m_data[vi] = n_junglegrass;
}
}
}
// Put trees in random places on part of division
for (s32 i = 0; i < tree_count; i++) {
s16 x = myrand_range(p2d_min.X, p2d_max.X);
s16 z = myrand_range(p2d_min.Y, p2d_max.Y);
/* wtf
int mapindex = central_area_size.X * (z - node_min.Z)
+ (x - node_min.X);
s16 y = heightmap[mapindex];
*/
s16 y = findGroundLevelFull(v2s16(x, z));
// Don't make a tree under water level
// Don't make a tree so high that it doesn't fit
if (y > node_max.Y - 6)
continue;
v3s16 p(x, y, z);
// Trees grow only on mud and grass and snowblock
{
u32 i = vm->m_area.index(p);
content_t c = vm->m_data[i].getContent();
if (c != c_dirt &&
c != c_dirt_with_grass &&
c != c_dirt_with_snow &&
c != c_snowblock &&
(y >= water_level || c != c_sand))
continue;
}
p.Y++;
// Make a tree
if (y < water_level) {
if (y < water_level - 20) // do not spawn trees in lakes
treegen::make_cavetree(*vm, p, bt == BT_JUNGLE, ndef, myrand());
} else if (bt == BT_JUNGLE) {
treegen::make_jungletree(*vm, p, ndef, myrand());
} else if (bt == BT_TAIGA) {
treegen::make_pine_tree(*vm, p - v3s16(0, 1, 0), ndef, myrand());
} else if (bt == BT_NORMAL) {
bool is_apple_tree = (myrand_range(0, 3) == 0) &&
getHaveAppleTree(v2s16(x, z));
treegen::make_tree(*vm, p, is_apple_tree, ndef, myrand());
}
}
}
//printf("placeTreesAndJungleGrass: %dms\n", t.stop());
}
void MinimapUpdateThread::getMap(v3POS pos, s16 size, s16 scan_height, bool is_radar) {
v3POS p(pos.X - size / 2, pos.Y, pos.Z - size / 2);
v3POS blockpos_player, relpos;
getNodeBlockPosWithOffset(pos, blockpos_player, relpos);
for (s16 x = 0; x < size; x++)
for (s16 z = 0; z < size; z++) {
auto mmpixel = &data->minimap_scan[x + z * size];
mmpixel->air_count = 0;
mmpixel->id = CONTENT_AIR;
v3POS pos(p.X + x, p.Y, p.Z + z);
v3POS blockpos_max, blockpos_min;
getNodeBlockPosWithOffset(v3POS(pos.X, pos.Y - scan_height / 2, pos.Z), blockpos_min, relpos);
getNodeBlockPosWithOffset(v3POS(pos.X, pos.Y + scan_height / 2, pos.Z), blockpos_max, relpos);
s16 pixel_height = 0;
s16 height = scan_height - MAP_BLOCKSIZE;
v2POS top_block_xz(blockpos_max.X, blockpos_max.Z);
if (!getmap_cache.count(top_block_xz)) {
getmap_cache.emplace(std::piecewise_construct, std::forward_as_tuple(top_block_xz), std::forward_as_tuple());
auto & vec = getmap_cache[top_block_xz];
/* simple:
for (auto i = blockpos_max.Y; i > blockpos_min.Y - 1; --i) {
auto it = m_blocks_cache.find(v3POS(blockpos_max.X, i, blockpos_max.Z));
if (it == m_blocks_cache.end())
continue;
vec.emplace(i, it->second);
}
*/
int c = 0;
for (auto i = blockpos_player.Y; i > blockpos_min.Y - 1; --i) {
auto it = m_blocks_cache.find(v3POS(blockpos_max.X, i, blockpos_max.Z));
if (it == m_blocks_cache.end())
continue;
vec.emplace(c++, it->second);
}
for (auto i = blockpos_max.Y; i > blockpos_player.Y; --i) {
auto it = m_blocks_cache.find(v3POS(blockpos_max.X, i, blockpos_max.Z));
if (it == m_blocks_cache.end())
continue;
vec.emplace(c++, it->second);
}
}
//simple: for (auto & mmblock : getmap_cache[top_block_xz]) {
for (auto & it : getmap_cache[top_block_xz]) {
auto & mmblock = it.second;
auto pixel = &mmblock->data[relpos.Z * MAP_BLOCKSIZE + relpos.X];
mmpixel->air_count += pixel->air_count;
if (pixel->id != CONTENT_AIR) {
pixel_height = height + pixel->height;
mmpixel->id = pixel->id;
mmpixel->height = pixel_height;
if (!is_radar)
break;
}
height -= MAP_BLOCKSIZE;
}
}
}
