Merge pull request #206 from diamante0018/iw5/leaderboard-load

feat(iw5): load leaderboard definitions from raw

src/ObjLoading/Game/IW5/AssetLoaders/AssetLoaderLeaderboard.cpp

@@ -1,10 +1,13 @@
 #include "AssetLoaderLeaderboard.h"
 
 #include "Game/IW5/IW5.h"
+#include "Game/IW5/Leaderboard/JsonLeaderboardDefLoader.h"
 #include "ObjLoading.h"
 #include "Pool/GlobalAssetPool.h"
 
 #include <cstring>
+#include <format>
+#include <iostream>
 
 using namespace IW5;
 
@@ -15,3 +18,26 @@ void* AssetLoaderLeaderboard::CreateEmptyAsset(const std::string& assetName, Mem
     leaderboard->name = memory->Dup(assetName.c_str());
     return leaderboard;
 }
+
+bool AssetLoaderLeaderboard::CanLoadFromRaw() const
+{
+    return true;
+}
+
+bool AssetLoaderLeaderboard::LoadFromRaw(
+    const std::string& assetName, ISearchPath* searchPath, MemoryManager* memory, IAssetLoadingManager* manager, Zone* zone) const
+{
+    const auto file = searchPath->Open(std::format("leaderboards/{}.json", assetName));
+    if (!file.IsOpen())
+        return false;
+
+    auto* leaderboardDef = memory->Alloc<LeaderboardDef>();
+    leaderboardDef->name = memory->Dup(assetName.c_str());
+
+    if (LoadLeaderboardAsJson(*file.m_stream, *leaderboardDef, memory))
+        manager->AddAsset<AssetLeaderboard>(assetName, leaderboardDef);
+    else
+        std::cerr << std::format("Failed to load leaderboard \"{}\"\n", assetName);
+
+    return true;
+}

src/ObjLoading/Game/IW5/AssetLoaders/AssetLoaderLeaderboard.h

@@ -10,5 +10,8 @@ namespace IW5
     {
     public:
         _NODISCARD void* CreateEmptyAsset(const std::string& assetName, MemoryManager* memory) override;
+        _NODISCARD bool CanLoadFromRaw() const override;
+        bool
+            LoadFromRaw(const std::string& assetName, ISearchPath* searchPath, MemoryManager* memory, IAssetLoadingManager* manager, Zone* zone) const override;
     };
 } // namespace IW5

src/ObjLoading/Game/IW5/Leaderboard/JsonLeaderboardDefLoader.cpp

@@ -0,0 +1,122 @@
+#include "JsonLeaderboardDefLoader.h"
+
+#include "Game/IW5/CommonIW5.h"
+#include "Game/IW5/Leaderboard/JsonLeaderboardDef.h"
+
+#include <format>
+#include <iostream>
+#include <nlohmann/json.hpp>
+
+using namespace nlohmann;
+using namespace IW5;
+
+namespace
+{
+    class JsonLoader
+    {
+    public:
+        JsonLoader(std::istream& stream, MemoryManager& memory)
+            : m_stream(stream),
+              m_memory(memory)
+        {
+        }
+
+        bool Load(LeaderboardDef& leaderboardDef) const
+        {
+            const auto jRoot = json::parse(m_stream);
+            std::string type;
+            unsigned version;
+
+            jRoot.at("_type").get_to(type);
+            jRoot.at("_version").get_to(version);
+
+            if (type != "leaderboard" || version != 1u)
+            {
+                std::cerr << std::format("Tried to load leaderboard \"{}\" but did not find expected type leaderboard of version 1\n", leaderboardDef.name);
+                return false;
+            }
+
+            const auto jLeaderboard = jRoot.get<JsonLeaderboardDef>();
+            return CreateLeaderboardFromJson(jLeaderboard, leaderboardDef);
+        }
+
+    private:
+        static bool CreateTrackTypeFlagsFromJson(const JsonLeaderboardDef& jLeaderboardDef, int& trackTypeFlags)
+        {
+            for (const auto trackType : jLeaderboardDef.trackTypes)
+                trackTypeFlags |= 1 << trackType;
+
+            return true;
+        }
+
+        bool CreateColumnDefFromJson(const JsonColumnDef& jColumn, LbColumnDef& lbColumnDef, LeaderboardDef& leaderboardDef) const
+        {
+            lbColumnDef.name = m_memory.Dup(jColumn.name.c_str());
+
+            lbColumnDef.id = jColumn.colId;
+            lbColumnDef.propertyId = jColumn.propertyId.value_or(0);
+            lbColumnDef.hidden = jColumn.hidden.value_or(false);
+
+            if (jColumn.statName)
+                lbColumnDef.statName = m_memory.Dup(jColumn.statName->c_str());
+            else
+                lbColumnDef.statName = nullptr;
+
+            lbColumnDef.type = jColumn.type;
+
+            lbColumnDef.precision = jColumn.precision.value_or(0);
+
+            lbColumnDef.agg = jColumn.aggregationFunction;
+
+            lbColumnDef.uiCalColX = jColumn.uiCalColX.value_or(0);
+            lbColumnDef.uiCalColY = jColumn.uiCalColY.value_or(0);
+
+            return true;
+        }
+
+        bool CreateLeaderboardFromJson(const JsonLeaderboardDef& jLeaderboardDef, LeaderboardDef& leaderboardDef) const
+        {
+            leaderboardDef.id = jLeaderboardDef.id;
+
+            leaderboardDef.xpColId = jLeaderboardDef.xpColId.value_or(-1);
+            leaderboardDef.prestigeColId = jLeaderboardDef.prestigeColId.value_or(-1);
+
+            if (!jLeaderboardDef.columns.empty())
+            {
+                leaderboardDef.columnCount = static_cast<int>(jLeaderboardDef.columns.size());
+                leaderboardDef.columns = m_memory.Alloc<LbColumnDef>(leaderboardDef.columnCount);
+
+                for (auto i = 0; i < leaderboardDef.columnCount; i++)
+                {
+                    if (!CreateColumnDefFromJson(jLeaderboardDef.columns[i], leaderboardDef.columns[i], leaderboardDef))
+                        return false;
+                }
+            }
+            else
+            {
+                leaderboardDef.columnCount = 0;
+                leaderboardDef.columns = nullptr;
+            }
+
+            leaderboardDef.updateType = jLeaderboardDef.updateType;
+
+            if (!CreateTrackTypeFlagsFromJson(jLeaderboardDef, leaderboardDef.trackTypes))
+                return false;
+
+            return true;
+        }
+
+        std::istream& m_stream;
+        MemoryManager& m_memory;
+    };
+} // namespace
+
+namespace IW5
+{
+    bool LoadLeaderboardAsJson(std::istream& stream, LeaderboardDef& leaderboard, MemoryManager* memory)
+    {
+        const JsonLoader loader(stream, *memory);
+
+        return loader.Load(leaderboard);
+    }
+} // namespace IW5

src/ObjLoading/Game/IW5/Leaderboard/JsonLeaderboardDefLoader.h

@@ -0,0 +1,9 @@
+#pragma once
+
+#include "Game/IW5/IW5.h"
+#include "Utils/MemoryManager.h"
+
+namespace IW5
+{
+    bool LoadLeaderboardAsJson(std::istream& stream, LeaderboardDef& leaderboard, MemoryManager* memory);
+} // namespace IW5