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Decoration: Add schematic Y-slice probability support
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@ -1491,7 +1491,7 @@ minetest.delete_particlespawner(id, player)
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^ otherwise on all clients
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Schematics:
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minetest.create_schematic(p1, p2, probability_list, filename)
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minetest.create_schematic(p1, p2, probability_list, filename, slice_prob_list)
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^ Create a schematic from the volume of map specified by the box formed by p1 and p2.
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^ Apply the specified probability values to the specified nodes in probability_list.
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^ probability_list is an array of tables containing two fields, pos and prob.
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@ -1500,6 +1500,9 @@ minetest.create_schematic(p1, p2, probability_list, filename)
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^ If there are two or more entries with the same pos value, the last occuring in the array is used.
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^ If pos is not inside the box formed by p1 and p2, it is ignored.
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^ If probability_list is nil, no probabilities are applied.
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^ Slice probability works in the same manner, except takes a field called ypos instead which indicates
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^ the y position of the slice with a probability applied.
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^ If slice probability list is nil, no slice probabilities are applied.
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^ Saves schematic in the Minetest Schematic format to filename.
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minetest.place_schematic(pos, schematic, rotation, replacements)
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117
src/mapgen.cpp
117
src/mapgen.cpp
@ -482,16 +482,18 @@ std::string DecoSimple::getName() {
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DecoSchematic::DecoSchematic() {
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node_names = NULL;
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schematic = NULL;
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flags = 0;
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size = v3s16(0, 0, 0);
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node_names = NULL;
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schematic = NULL;
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slice_probs = NULL;
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flags = 0;
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size = v3s16(0, 0, 0);
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}
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DecoSchematic::~DecoSchematic() {
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delete node_names;
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delete []schematic;
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delete []slice_probs;
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}
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@ -599,37 +601,44 @@ void DecoSchematic::blitToVManip(v3s16 p, ManualMapVoxelManipulator *vm,
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i_step_x = xstride;
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i_step_z = zstride;
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}
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for (s16 z = 0; z != sz; z++)
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for (s16 y = 0; y != sy; y++) {
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u32 i = z * i_step_z + y * ystride + i_start;
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for (s16 x = 0; x != sx; x++, i += i_step_x) {
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u32 vi = vm->m_area.index(p.X + x, p.Y + y, p.Z + z);
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if (!vm->m_area.contains(vi))
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continue;
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if (schematic[i].getContent() == CONTENT_IGNORE)
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continue;
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if (schematic[i].param1 == MTSCHEM_PROB_NEVER)
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continue;
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if (!force_placement) {
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content_t c = vm->m_data[vi].getContent();
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if (c != CONTENT_AIR && c != CONTENT_IGNORE)
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s16 y_map = p.Y;
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for (s16 y = 0; y != sy; y++) {
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if (slice_probs[y] != MTSCHEM_PROB_ALWAYS &&
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myrand_range(1, 255) > slice_probs[y])
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continue;
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for (s16 z = 0; z != sz; z++) {
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u32 i = z * i_step_z + y * ystride + i_start;
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for (s16 x = 0; x != sx; x++, i += i_step_x) {
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u32 vi = vm->m_area.index(p.X + x, y_map, p.Z + z);
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if (!vm->m_area.contains(vi))
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continue;
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if (schematic[i].getContent() == CONTENT_IGNORE)
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continue;
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if (schematic[i].param1 == MTSCHEM_PROB_NEVER)
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continue;
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if (!force_placement) {
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content_t c = vm->m_data[vi].getContent();
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if (c != CONTENT_AIR && c != CONTENT_IGNORE)
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continue;
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}
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if (schematic[i].param1 != MTSCHEM_PROB_ALWAYS &&
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myrand_range(1, 255) > schematic[i].param1)
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continue;
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vm->m_data[vi] = schematic[i];
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vm->m_data[vi].param1 = 0;
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if (rot)
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vm->m_data[vi].rotateAlongYAxis(ndef, rot);
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}
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if (schematic[i].param1 != MTSCHEM_PROB_ALWAYS &&
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myrand_range(1, 255) > schematic[i].param1)
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continue;
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vm->m_data[vi] = schematic[i];
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vm->m_data[vi].param1 = 0;
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if (rot)
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vm->m_data[vi].rotateAlongYAxis(ndef, rot);
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}
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y_map++;
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}
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}
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@ -690,13 +699,24 @@ bool DecoSchematic::loadSchematicFile() {
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}
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u16 version = readU16(is);
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if (version > 2) {
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if (version > MTSCHEM_FILE_VER_HIGHEST_READ) {
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errorstream << "loadSchematicFile: unsupported schematic "
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"file version" << std::endl;
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return false;
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}
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size = readV3S16(is);
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delete []slice_probs;
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slice_probs = new u8[size.Y];
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if (version >= 3) {
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for (int y = 0; y != size.Y; y++)
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slice_probs[y] = readU8(is);
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} else {
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for (int y = 0; y != size.Y; y++)
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slice_probs[y] = MTSCHEM_PROB_ALWAYS;
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}
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int nodecount = size.X * size.Y * size.Z;
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u16 nidmapcount = readU16(is);
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@ -712,7 +732,7 @@ bool DecoSchematic::loadSchematicFile() {
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node_names->push_back(name);
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}
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delete schematic;
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delete []schematic;
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schematic = new MapNode[nodecount];
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MapNode::deSerializeBulk(is, SER_FMT_VER_HIGHEST_READ, schematic,
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nodecount, 2, 2, true);
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@ -735,10 +755,12 @@ bool DecoSchematic::loadSchematicFile() {
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All values are stored in big-endian byte order.
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[u32] signature: 'MTSM'
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[u16] version: 2
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[u16] version: 3
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[u16] size X
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[u16] size Y
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[u16] size Z
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For each Y:
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[u8] slice probability value
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[Name-ID table] Name ID Mapping Table
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[u16] name-id count
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For each name-id mapping:
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@ -760,10 +782,13 @@ bool DecoSchematic::loadSchematicFile() {
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void DecoSchematic::saveSchematicFile(INodeDefManager *ndef) {
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std::ostringstream ss(std::ios_base::binary);
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writeU32(ss, MTSCHEM_FILE_SIGNATURE); // signature
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writeU16(ss, 2); // version
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writeV3S16(ss, size); // schematic size
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writeU32(ss, MTSCHEM_FILE_SIGNATURE); // signature
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writeU16(ss, MTSCHEM_FILE_VER_HIGHEST_WRITE); // version
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writeV3S16(ss, size); // schematic size
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for (int y = 0; y != size.Y; y++) // Y slice probabilities
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writeU8(ss, slice_probs[y]);
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std::vector<content_t> usednodes;
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int nodecount = size.X * size.Y * size.Z;
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build_nnlist_and_update_ids(schematic, nodecount, &usednodes);
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@ -813,6 +838,11 @@ bool DecoSchematic::getSchematicFromMap(Map *map, v3s16 p1, v3s16 p2) {
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vm->initialEmerge(bp1, bp2);
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size = p2 - p1 + 1;
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slice_probs = new u8[size.Y];
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for (s16 y = 0; y != size.Y; y++)
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slice_probs[y] = MTSCHEM_PROB_ALWAYS;
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schematic = new MapNode[size.X * size.Y * size.Z];
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u32 i = 0;
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@ -830,8 +860,10 @@ bool DecoSchematic::getSchematicFromMap(Map *map, v3s16 p1, v3s16 p2) {
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}
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void DecoSchematic::applyProbabilities(std::vector<std::pair<v3s16, u8> > *plist,
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v3s16 p0) {
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void DecoSchematic::applyProbabilities(v3s16 p0,
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std::vector<std::pair<v3s16, u8> > *plist,
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std::vector<std::pair<s16, u8> > *splist) {
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for (size_t i = 0; i != plist->size(); i++) {
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v3s16 p = (*plist)[i].first - p0;
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int index = p.Z * (size.Y * size.X) + p.Y * size.X + p.X;
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@ -844,6 +876,11 @@ void DecoSchematic::applyProbabilities(std::vector<std::pair<v3s16, u8> > *plist
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schematic[index].setContent(CONTENT_AIR);
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}
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}
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for (size_t i = 0; i != splist->size(); i++) {
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s16 y = (*splist)[i].first - p0.Y;
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slice_probs[y] = (*splist)[i].second;
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}
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}
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@ -256,6 +256,9 @@ public:
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};
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#define MTSCHEM_FILE_SIGNATURE 0x4d54534d // 'MTSM'
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#define MTSCHEM_FILE_VER_HIGHEST_READ 3
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#define MTSCHEM_FILE_VER_HIGHEST_WRITE 3
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#define MTSCHEM_PROB_NEVER 0x00
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#define MTSCHEM_PROB_ALWAYS 0xFF
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@ -271,6 +274,7 @@ public:
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Rotation rotation;
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v3s16 size;
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MapNode *schematic;
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u8 *slice_probs;
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DecoSchematic();
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~DecoSchematic();
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@ -288,7 +292,9 @@ public:
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bool getSchematicFromMap(Map *map, v3s16 p1, v3s16 p2);
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void placeStructure(Map *map, v3s16 p);
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void applyProbabilities(std::vector<std::pair<v3s16, u8> > *plist, v3s16 p0);
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void applyProbabilities(v3s16 p0,
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std::vector<std::pair<v3s16, u8> > *plist,
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std::vector<std::pair<s16, u8> > *splist);
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};
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void build_nnlist_and_update_ids(MapNode *nodes, u32 nodecount,
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@ -475,7 +475,7 @@ int ModApiMapgen::l_create_schematic(lua_State *L)
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v3s16 p2 = read_v3s16(L, 2);
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sortBoxVerticies(p1, p2);
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std::vector<std::pair<v3s16, u8> > probability_list;
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std::vector<std::pair<v3s16, u8> > prob_list;
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if (lua_istable(L, 3)) {
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lua_pushnil(L);
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while (lua_next(L, 3)) {
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@ -485,22 +485,37 @@ int ModApiMapgen::l_create_schematic(lua_State *L)
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lua_pop(L, 1);
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u8 prob = getintfield_default(L, -1, "prob", MTSCHEM_PROB_ALWAYS);
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probability_list.push_back(std::make_pair(pos, prob));
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prob_list.push_back(std::make_pair(pos, prob));
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}
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lua_pop(L, 1);
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}
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}
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dschem.filename = std::string(lua_tostring(L, 4));
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std::vector<std::pair<s16, u8> > slice_prob_list;
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if (lua_istable(L, 5)) {
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lua_pushnil(L);
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while (lua_next(L, 5)) {
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if (lua_istable(L, -1)) {
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s16 ypos = getintfield_default(L, -1, "ypos", 0);
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u8 prob = getintfield_default(L, -1, "prob", MTSCHEM_PROB_ALWAYS);
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slice_prob_list.push_back(std::make_pair(ypos, prob));
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}
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lua_pop(L, 1);
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}
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}
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const char *s = lua_tostring(L, 4);
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dschem.filename = std::string(s ? s : "");
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if (!dschem.getSchematicFromMap(map, p1, p2)) {
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errorstream << "create_schematic: failed to get schematic "
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"from map" << std::endl;
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return 0;
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}
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dschem.applyProbabilities(&probability_list, p1);
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dschem.applyProbabilities(p1, &prob_list, &slice_prob_list);
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dschem.saveSchematicFile(ndef);
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actionstream << "create_schematic: saved schematic file '"
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