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add block.get_field(...), block.set_field(...)

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This commit is contained in:
MihailRis
2024-09-30 18:55:01 +03:00
parent 8d89e06ac5
commit fc99343fb5
5 changed files with 169 additions and 28 deletions
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src/logic/scripting/lua/libblock.cpp
+105
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@@ -7,6 +7,8 @@
#include "voxels/Chunks.hpp"
#include "voxels/voxel.hpp"
#include "world/Level.hpp"
#include "maths/voxmaths.hpp"
#include "data/StructLayout.hpp"
#include "api_lua.hpp"
using namespace scripting;
@@ -436,6 +438,107 @@ static int l_decompose_state(lua::State* L) {
return 1;
}
static int l_get_field(lua::State* L) {
auto x = lua::tointeger(L, 1);
auto y = lua::tointeger(L, 2);
auto z = lua::tointeger(L, 3);
auto name = lua::require_string(L, 4);
size_t index = 0;
if (lua::gettop(L) >= 5) {
index = lua::tointeger(L, 5);
}
auto vox = level->chunks->get(x, y, z);
auto cx = floordiv(x, CHUNK_W);
auto cz = floordiv(z, CHUNK_D);
auto chunk = level->chunks->getChunk(cx, cz);
auto lx = x - cx * CHUNK_W;
auto lz = z - cz * CHUNK_W;
size_t voxelIndex = vox_index(lx, y, lz);
const auto& def = content->getIndices()->blocks.require(vox->id);
if (def.dataStruct == nullptr) {
return 0;
}
const auto& dataStruct = *def.dataStruct;
const auto field = dataStruct.getField(name);
if (field == nullptr) {
return 0;
}
const ubyte* src = chunk->blocksMetadata.find(voxelIndex);
if (src == nullptr) {
throw std::runtime_error("block data is not allocated");
}
switch (field->type) {
case data::FieldType::I8:
case data::FieldType::I16:
case data::FieldType::I32:
case data::FieldType::I64:
return lua::pushinteger(L, dataStruct.getInteger(src, *field, index));
case data::FieldType::F32:
case data::FieldType::F64:
return lua::pushnumber(L, dataStruct.getNumber(src, *field, index));
case data::FieldType::CHAR:
return lua::pushstring(L,
std::string(dataStruct.getChars(src, *field)).c_str());
case data::FieldType::COUNT:
return 0;
}
return 0;
}
static int l_set_field(lua::State* L) {
auto x = lua::tointeger(L, 1);
auto y = lua::tointeger(L, 2);
auto z = lua::tointeger(L, 3);
auto name = lua::require_string(L, 4);
auto value = lua::tovalue(L, 5);
size_t index = 0;
if (lua::gettop(L) >= 6) {
index = lua::tointeger(L, 6);
}
auto vox = level->chunks->get(x, y, z);
auto cx = floordiv(x, CHUNK_W);
auto cz = floordiv(z, CHUNK_D);
auto chunk = level->chunks->getChunk(cx, cz);
auto lx = x - cx * CHUNK_W;
auto lz = z - cz * CHUNK_W;
size_t voxelIndex = vox_index(lx, y, lz);
const auto& def = content->getIndices()->blocks.require(vox->id);
if (def.dataStruct == nullptr) {
return 0;
}
const auto& dataStruct = *def.dataStruct;
const auto field = dataStruct.getField(name);
if (field == nullptr) {
return 0;
}
ubyte* dst = chunk->blocksMetadata.find(voxelIndex);
if (dst == nullptr) {
throw std::runtime_error("block data is not allocated");
}
switch (field->type) {
case data::FieldType::CHAR:
if (value.isString()) {
return lua::pushinteger(L,
dataStruct.setUnicode(dst, value.asString(), *field));
}
case data::FieldType::I8:
case data::FieldType::I16:
case data::FieldType::I32:
case data::FieldType::I64:
dataStruct.setInteger(dst, value.asInteger(), *field, index);
break;
case data::FieldType::F32:
case data::FieldType::F64:
dataStruct.setNumber(dst, value.asNumber(), *field, index);
break;
case data::FieldType::COUNT:
break;
}
return 0;
}
const luaL_Reg blocklib[] = {
{"index", lua::wrap<l_index>},
{"name", lua::wrap<l_get_def>},
@@ -469,5 +572,7 @@ const luaL_Reg blocklib[] = {
{"raycast", lua::wrap<l_raycast>},
{"compose_state", lua::wrap<l_compose_state>},
{"decompose_state", lua::wrap<l_decompose_state>},
{"get_field", lua::wrap<l_get_field>},
{"set_field", lua::wrap<l_set_field>},
{NULL, NULL}
};