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Schematic: Add force_placement parameter to minetest.place_structure API
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kwolekr committed Feb 16, 2014
1 parent 3570f3e commit c163859
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Showing 4 changed files with 12 additions and 7 deletions.
4 changes: 3 additions & 1 deletion doc/lua_api.txt
Expand Up @@ -1595,11 +1595,13 @@ minetest.create_schematic(p1, p2, probability_list, filename, slice_prob_list)
^ If slice probability list is nil, no slice probabilities are applied.
^ Saves schematic in the Minetest Schematic format to filename.

minetest.place_schematic(pos, schematic, rotation, replacements)
minetest.place_schematic(pos, schematic, rotation, replacements, force_placement)
^ Place the schematic specified by schematic (see: Schematic specifier) at pos.
^ Rotation can be "0", "90", "180", "270", or "random".
^ If the rotation parameter is omitted, the schematic is not rotated.
^ replacements = {{"oldname", "convert_to"}, ...}
^ force_placement is a boolean indicating whether nodes other than air and
^ ignore are replaced by the schematic

Random:
minetest.get_connected_players() -> list of ObjectRefs
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4 changes: 2 additions & 2 deletions src/mapgen.cpp
Expand Up @@ -652,7 +652,7 @@ void DecoSchematic::blitToVManip(v3s16 p, ManualMapVoxelManipulator *vm,
}


void DecoSchematic::placeStructure(Map *map, v3s16 p) {
void DecoSchematic::placeStructure(Map *map, v3s16 p, bool force_placement) {
assert(schematic != NULL);
ManualMapVoxelManipulator *vm = new ManualMapVoxelManipulator(map);

Expand All @@ -673,7 +673,7 @@ void DecoSchematic::placeStructure(Map *map, v3s16 p) {
v3s16 bp2 = getNodeBlockPos(p + s - v3s16(1,1,1));
vm->initialEmerge(bp1, bp2);

blitToVManip(p, vm, rot, true);
blitToVManip(p, vm, rot, force_placement);

std::map<v3s16, MapBlock *> lighting_modified_blocks;
std::map<v3s16, MapBlock *> modified_blocks;
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2 changes: 1 addition & 1 deletion src/mapgen.h
Expand Up @@ -313,7 +313,7 @@ class DecoSchematic : public Decoration {
void saveSchematicFile(INodeDefManager *ndef);

bool getSchematicFromMap(Map *map, v3s16 p1, v3s16 p2);
void placeStructure(Map *map, v3s16 p);
void placeStructure(Map *map, v3s16 p, bool force_placement);
void applyProbabilities(v3s16 p0,
std::vector<std::pair<v3s16, u8> > *plist,
std::vector<std::pair<s16, u8> > *splist);
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9 changes: 6 additions & 3 deletions src/script/lua_api/l_mapgen.cpp
Expand Up @@ -599,9 +599,8 @@ int ModApiMapgen::l_place_schematic(lua_State *L)
dschem.rotation = (Rotation)rot;

if (lua_istable(L, 4)) {
int index = 4;
lua_pushnil(L);
while (lua_next(L, index) != 0) {
while (lua_next(L, 4) != 0) {
// key at index -2 and value at index -1
lua_rawgeti(L, -1, 1);
std::string replace_from = lua_tostring(L, -1);
Expand All @@ -615,6 +614,10 @@ int ModApiMapgen::l_place_schematic(lua_State *L)
}
}

bool force_placement = true;
if (lua_isboolean(L, 5))
force_placement = lua_toboolean(L, 5);

if (!dschem.filename.empty()) {
if (!dschem.loadSchematicFile()) {
errorstream << "place_schematic: failed to load schematic file '"
Expand All @@ -624,7 +627,7 @@ int ModApiMapgen::l_place_schematic(lua_State *L)
dschem.resolveNodeNames(ndef);
}

dschem.placeStructure(map, p);
dschem.placeStructure(map, p, force_placement);

return 1;
}
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