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Avoid unordered map/multimap for tunnel tile index and axis height maps

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Use robin_hood and btree_multimap instead
This commit is contained in:
Jonathan G Rennison
2023-03-06 22:44:17 +00:00
parent 6a9d82bde0
commit dedb0ff7e2
1 changed files with 9 additions and 8 deletions
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17
src/tunnel_map.cpp
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@@ -11,7 +11,8 @@
#include "tunnelbridge_map.h"
#include "core/pool_func.hpp"
#include <unordered_map>
#include "3rdparty/robin_hood/robin_hood.h"
#include "3rdparty/cpp-btree/btree_map.h"
#include "safeguards.h"
@@ -19,8 +20,8 @@
TunnelPool _tunnel_pool("Tunnel");
INSTANTIATE_POOL_METHODS(Tunnel)
static std::unordered_map<TileIndex, TunnelID> tunnel_tile_index_map;
static std::unordered_multimap<uint64, Tunnel*> tunnel_axis_height_index;
static robin_hood::unordered_map<TileIndex, TunnelID> tunnel_tile_index_map;
static btree::btree_multimap<uint64, Tunnel*> tunnel_axis_height_index;
static uint64 GetTunnelAxisHeightCacheKey(TileIndex tile, uint8 height, bool y_axis) {
if (y_axis) {
@@ -48,9 +49,9 @@ Tunnel::~Tunnel()
tunnel_tile_index_map.erase(this->tile_s);
}
auto range = tunnel_axis_height_index.equal_range(GetTunnelAxisHeightCacheKey(this));
bool have_erased = false;
for (auto it = range.first; it != range.second; ++it) {
const auto key = GetTunnelAxisHeightCacheKey(this);
for (auto it = tunnel_axis_height_index.lower_bound(key); it != tunnel_axis_height_index.end() && it->first == key; ++it) {
if (it->second == this) {
tunnel_axis_height_index.erase(it);
have_erased = true;
@@ -70,7 +71,7 @@ void Tunnel::UpdateIndexes()
tunnel_tile_index_map[this->tile_s] = this->index;
}
tunnel_axis_height_index.emplace(GetTunnelAxisHeightCacheKey(this), this);
tunnel_axis_height_index.insert({ GetTunnelAxisHeightCacheKey(this), this });
}
/**
@@ -103,8 +104,8 @@ TileIndex GetOtherTunnelEnd(TileIndex tile)
static inline bool IsTunnelInWaySingleAxis(TileIndex tile, int z, IsTunnelInWayFlags flags, bool y_axis, TileIndexDiff tile_diff)
{
const auto tunnels = tunnel_axis_height_index.equal_range(GetTunnelAxisHeightCacheKey(tile, z, y_axis));
for (auto it = tunnels.first; it != tunnels.second; ++it) {
const auto key = GetTunnelAxisHeightCacheKey(tile, z, y_axis);
for (auto it = tunnel_axis_height_index.lower_bound(key); it != tunnel_axis_height_index.end() && it->first == key; ++it) {
const Tunnel *t = it->second;
if (t->tile_n > tile || tile > t->tile_s) continue;