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Code Issues Releases Wiki Activity

Biome API: Re-calculate biome at every surface in a mapchunk column

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This commit is contained in:
paramat 2015-02-24 04:06:05 +00:00
parent d65a90a86b
commit 14f7df980b
7 changed files with 43 additions and 61 deletions
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41
src/mapgen_v5.cpp
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@ -228,14 +228,16 @@ void MapgenV5::makeChunk(BlockMakeData *data)
// Generate base terrain
s16 stone_surface_max_y = generateBaseTerrain();
// Create heightmap
updateHeightmap(node_min, node_max);
// Calculate biomes
// Create biomemap at heightmap surface
bmgr->calcBiomes(csize.X, csize.Z, noise_heat->result,
noise_humidity->result, heightmap, biomemap);
// Actually place the biome-specific nodes
generateBiomes();
generateBiomes(noise_heat->result, noise_humidity->result);
// Generate caves
if ((flags & MG_CAVES) && (stone_surface_max_y >= node_min.Y))
@ -354,7 +356,7 @@ int MapgenV5::generateBaseTerrain()
}
void MapgenV5::generateBiomes()
void MapgenV5::generateBiomes(float *heat_map, float *humidity_map)
{
if (node_max.Y < water_level)
return;
@ -368,12 +370,11 @@ void MapgenV5::generateBiomes()
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 = (Biome *)bmgr->get(biomemap[index]);
s16 dfiller = biome->depth_filler + noise_filler_depth->result[index];
s16 y0_top = biome->depth_top;
s16 y0_filler = biome->depth_top + dfiller;
s16 shore_max = water_level + biome->height_shore;
s16 depth_water_top = biome->depth_water_top;
Biome *biome = NULL;
s16 dfiller = 0;
s16 y0_top = 0;
s16 y0_filler = 0;
s16 depth_water_top = 0;
s16 nplaced = 0;
u32 i = vm->m_area.index(x, node_max.Y, z);
@ -384,25 +385,23 @@ void MapgenV5::generateBiomes()
for (s16 y = node_max.Y; y >= node_min.Y; y--) {
content_t c = vm->m_data[i].getContent();
if (c != CONTENT_IGNORE && c != CONTENT_AIR && (y == node_max.Y || have_air)) {
biome = bmgr->getBiome(heat_map[index], humidity_map[index], y);
dfiller = biome->depth_filler + noise_filler_depth->result[index];
y0_top = biome->depth_top;
y0_filler = biome->depth_top + dfiller;
depth_water_top = biome->depth_water_top;
}
if (c == c_stone && have_air) {
content_t c_below = vm->m_data[i - em.X].getContent();
if (c_below != CONTENT_AIR) {
if (nplaced < y0_top) {
if(y < water_level)
vm->m_data[i] = MapNode(biome->c_underwater);
else if(y <= shore_max)
vm->m_data[i] = MapNode(biome->c_shore_top);
else
vm->m_data[i] = MapNode(biome->c_top);
vm->m_data[i] = MapNode(biome->c_top);
nplaced++;
} else if (nplaced < y0_filler && nplaced >= y0_top) {
if(y < water_level)
vm->m_data[i] = MapNode(biome->c_underwater);
else if(y <= shore_max)
vm->m_data[i] = MapNode(biome->c_shore_filler);
else
vm->m_data[i] = MapNode(biome->c_filler);
vm->m_data[i] = MapNode(biome->c_filler);
nplaced++;
} else if (c == c_stone) {
have_air = false;

2
src/mapgen_v5.h
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@ -93,7 +93,7 @@ public:
int getGroundLevelAtPoint(v2s16 p);
void calculateNoise();
int generateBaseTerrain();
void generateBiomes();
void generateBiomes(float *heat_map, float *humidity_map);
void generateCaves(int max_stone_y);
void dustTopNodes();
};

42
src/mapgen_v7.cpp
View File

@ -239,14 +239,15 @@ void MapgenV7::makeChunk(BlockMakeData *data)
// Generate base terrain, mountains, and ridges with initial heightmaps
s16 stone_surface_max_y = generateTerrain();
// Create heightmap
updateHeightmap(node_min, node_max);
// Calculate biomes
// Create biomemap at heightmap surface
bmgr->calcBiomes(csize.X, csize.Z, noise_heat->result,
noise_humidity->result, heightmap, biomemap);
// Actually place the biome-specific nodes and what not
generateBiomes();
// Actually place the biome-specific nodes
generateBiomes(noise_heat->result, noise_humidity->result);
if (flags & MG_CAVES)
generateCaves(stone_surface_max_y);
@ -534,7 +535,7 @@ void MapgenV7::generateRidgeTerrain()
}
void MapgenV7::generateBiomes()
void MapgenV7::generateBiomes(float *heat_map, float *humidity_map)
{
if (node_max.Y < water_level)
return;
@ -548,12 +549,11 @@ void MapgenV7::generateBiomes()
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 = (Biome *)bmgr->get(biomemap[index]);
s16 dfiller = biome->depth_filler + noise_filler_depth->result[index];
s16 y0_top = biome->depth_top;
s16 y0_filler = biome->depth_top + dfiller;
s16 shore_max = water_level + biome->height_shore;
s16 depth_water_top = biome->depth_water_top;
Biome *biome = NULL;
s16 dfiller = 0;
s16 y0_top = 0;
s16 y0_filler = 0;
s16 depth_water_top = 0;
s16 nplaced = 0;
u32 i = vm->m_area.index(x, node_max.Y, z);
@ -574,25 +574,23 @@ void MapgenV7::generateBiomes()
have_air = !getMountainTerrainFromMap(j, index, y);
}
if (c != CONTENT_IGNORE && c != CONTENT_AIR && (y == node_max.Y || have_air)) {
biome = bmgr->getBiome(heat_map[index], humidity_map[index], y);
dfiller = biome->depth_filler + noise_filler_depth->result[index];
y0_top = biome->depth_top;
y0_filler = biome->depth_top + dfiller;
depth_water_top = biome->depth_water_top;
}
if (c == c_stone && have_air) {
content_t c_below = vm->m_data[i - em.X].getContent();
if (c_below != CONTENT_AIR) {
if (nplaced < y0_top) {
if(y < water_level)
vm->m_data[i] = MapNode(biome->c_underwater);
else if(y <= shore_max)
vm->m_data[i] = MapNode(biome->c_shore_top);
else
vm->m_data[i] = MapNode(biome->c_top);
vm->m_data[i] = MapNode(biome->c_top);
nplaced++;
} else if (nplaced < y0_filler && nplaced >= y0_top) {
if(y < water_level)
vm->m_data[i] = MapNode(biome->c_underwater);
else if(y <= shore_max)
vm->m_data[i] = MapNode(biome->c_shore_filler);
else
vm->m_data[i] = MapNode(biome->c_filler);
vm->m_data[i] = MapNode(biome->c_filler);
nplaced++;
} else if (c == c_stone) {
have_air = false;

2
src/mapgen_v7.h
View File

@ -114,7 +114,7 @@ public:
int generateMountainTerrain(int ymax);
void generateRidgeTerrain();
void generateBiomes();
void generateBiomes(float *heat_map, float *humidity_map);
void dustTopNodes();
//void addTopNodes();

7
src/mg_biome.cpp
View File

@ -43,7 +43,6 @@ BiomeManager::BiomeManager(IGameDef *gamedef) :
b->flags = 0;
b->depth_top = 0;
b->depth_filler = 0;
b->height_shore = 0;
b->depth_water_top = 0;
b->y_min = -MAP_GENERATION_LIMIT;
b->y_max = MAP_GENERATION_LIMIT;
@ -53,9 +52,6 @@ BiomeManager::BiomeManager(IGameDef *gamedef) :
NodeResolveInfo *nri = new NodeResolveInfo(b);
nri->nodenames.push_back("air");
nri->nodenames.push_back("air");
nri->nodenames.push_back("air");
nri->nodenames.push_back("air");
nri->nodenames.push_back("air");
nri->nodenames.push_back("mapgen_stone");
nri->nodenames.push_back("mapgen_water_source");
nri->nodenames.push_back("mapgen_water_source");
@ -126,9 +122,6 @@ void Biome::resolveNodeNames(NodeResolveInfo *nri)
{
m_ndef->getIdFromResolveInfo(nri, "mapgen_dirt_with_grass", CONTENT_AIR, c_top);
m_ndef->getIdFromResolveInfo(nri, "mapgen_dirt", CONTENT_AIR, c_filler);
m_ndef->getIdFromResolveInfo(nri, "mapgen_sand", CONTENT_AIR, c_shore_top);
m_ndef->getIdFromResolveInfo(nri, "mapgen_sand", CONTENT_AIR, c_shore_filler);
m_ndef->getIdFromResolveInfo(nri, "mapgen_sand", CONTENT_AIR, c_underwater);
m_ndef->getIdFromResolveInfo(nri, "mapgen_stone", CONTENT_AIR, c_stone);
m_ndef->getIdFromResolveInfo(nri, "mapgen_water_source", CONTENT_AIR, c_water_top);
m_ndef->getIdFromResolveInfo(nri, "mapgen_water_source", CONTENT_AIR, c_water);

4
src/mg_biome.h
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@ -39,9 +39,6 @@ public:
content_t c_top;
content_t c_filler;
content_t c_shore_top;
content_t c_shore_filler;
content_t c_underwater;
content_t c_stone;
content_t c_water_top;
content_t c_water;
@ -49,7 +46,6 @@ public:
s16 depth_top;
s16 depth_filler;
s16 height_shore;
s16 depth_water_top;
s16 y_min;

6
src/script/lua_api/l_mapgen.cpp
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@ -444,8 +444,7 @@ int ModApiMapgen::l_register_biome(lua_State *L)
b->name = getstringfield_default(L, index, "name", "");
b->depth_top = getintfield_default(L, index, "depth_top", 1);
b->depth_filler = getintfield_default(L, index, "depth_filler", 3);
b->height_shore = getintfield_default(L, index, "height_shore", 3);
b->depth_filler = getintfield_default(L, index, "depth_filler", 2);
b->depth_water_top = getintfield_default(L, index, "depth_water_top", 0);
b->y_min = getintfield_default(L, index, "y_min", -31000);
b->y_max = getintfield_default(L, index, "y_max", 31000);
@ -463,9 +462,6 @@ int ModApiMapgen::l_register_biome(lua_State *L)
std::list<std::string> &nnames = nri->nodenames;
nnames.push_back(getstringfield_default(L, index, "node_top", ""));
nnames.push_back(getstringfield_default(L, index, "node_filler", ""));
nnames.push_back(getstringfield_default(L, index, "node_shore_top", ""));
nnames.push_back(getstringfield_default(L, index, "node_shore_filler", ""));
nnames.push_back(getstringfield_default(L, index, "node_underwater", ""));
nnames.push_back(getstringfield_default(L, index, "node_stone", ""));
nnames.push_back(getstringfield_default(L, index, "node_water_top", ""));
nnames.push_back(getstringfield_default(L, index, "node_water", ""));