60 lines
2.0 KiB
C++
60 lines
2.0 KiB
C++
#include "buildingplan.h"
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#include "buildingtypekey.h"
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#include "Debug.h"
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#include "MiscUtils.h"
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using std::string;
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using std::vector;
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namespace DFHack {
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DBG_EXTERN(buildingplan, status);
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}
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using namespace DFHack;
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// building type, subtype, custom
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BuildingTypeKey::BuildingTypeKey(df::building_type type, int16_t subtype, int32_t custom)
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: tuple(type, subtype, custom) { }
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static BuildingTypeKey deserialize(color_ostream &out, const std::string &serialized) {
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vector<string> key_parts;
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split_string(&key_parts, serialized, ",");
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if (key_parts.size() != 3) {
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WARN(status,out).print("invalid key_str: '%s'\n", serialized.c_str());
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return BuildingTypeKey(df::building_type::NONE, -1, -1);
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}
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return BuildingTypeKey((df::building_type)string_to_int(key_parts[0]),
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string_to_int(key_parts[1]), string_to_int(key_parts[2]));
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}
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BuildingTypeKey::BuildingTypeKey(color_ostream &out, const std::string &serialized)
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:tuple(deserialize(out, serialized)) { }
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string BuildingTypeKey::serialize() const {
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std::ostringstream ser;
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ser << std::get<0>(*this) << ",";
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ser << std::get<1>(*this) << ",";
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ser << std::get<2>(*this);
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return ser.str();
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}
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// rotates a size_t value left by count bits
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// assumes count is not 0 or >= size_t_bits
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// replace this with std::rotl when we move to C++20
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static std::size_t rotl_size_t(size_t val, uint32_t count)
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{
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static const int size_t_bits = CHAR_BIT * sizeof(std::size_t);
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return val << count | val >> (size_t_bits - count);
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}
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std::size_t BuildingTypeKeyHash::operator() (const BuildingTypeKey & key) const {
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// cast first param to appease gcc-4.8, which is missing the enum
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// specializations for std::hash
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std::size_t h1 = std::hash<int32_t>()(static_cast<int32_t>(std::get<0>(key)));
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std::size_t h2 = std::hash<int16_t>()(std::get<1>(key));
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std::size_t h3 = std::hash<int32_t>()(std::get<2>(key));
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return h1 ^ rotl_size_t(h2, 8) ^ rotl_size_t(h3, 16);
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}
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