Basic vehicle tuning

CMakeLists.txt

@@ -18,6 +18,8 @@ set(COMMON_SOURCES
     "src/assets/model.cpp"
     "src/assets/skeleton.hpp"
     "src/assets/skeleton.cpp"
+    "src/assets/vehicle_tuning_list.hpp"
+    "src/assets/vehicle_tuning_list.cpp"
     "src/assets/vehiclemdl.hpp"
     "src/assets/vehiclemdl.cpp"
     "src/collision/dynamicsworld.hpp"

src/assets/cmdfile.cpp

@@ -23,3 +23,30 @@ void assets::LoadCMDFile(const std::string& filename,
     }
 
 }
+
+std::string assets::ParseString(std::istringstream& iss)
+{
+    std::string str;
+    iss >> str;
+
+    if (!str.starts_with('"'))
+        return str;
+
+    str = str.substr(1);
+
+    while (iss)
+    {
+        std::string tmp;
+        iss >> tmp;
+        str += ' ';
+        str += tmp;
+
+        if (str.ends_with('"'))
+        {
+            str.pop_back();
+            break;
+        }
+    }
+
+    return str;
+}

src/assets/cmdfile.hpp

@@ -21,4 +21,6 @@ inline void ParseTransform(std::istringstream& iss, Transform& trans)
     iss >> trans.scale;
 }
 
+std::string ParseString(std::istringstream& iss);
+
 } // namespace assets

src/assets/vehicle_tuning_list.cpp

@@ -0,0 +1,24 @@
+#include "vehicle_tuning_list.hpp"
+
+#include "cmdfile.hpp"
+
+std::unique_ptr<const assets::VehicleTuningList> assets::VehicleTuningList::LoadFromFile(const std::string& filename)
+{
+    auto tuninglist = std::make_unique<VehicleTuningList>();
+
+    if (!fs::FileExists(filename))
+        return tuninglist; // empty
+
+    LoadCMDFile(filename, [&](const std::string& command, std::istringstream& iss) {
+        if (command == "wheel")
+        {
+            VehicleWheelPreset wheel{};
+            wheel.displayname = ParseString(iss);
+            iss >> wheel.price >> wheel.model;
+
+            tuninglist->wheels.emplace_back(wheel);
+        }
+    });
+
+    return tuninglist;
+}

src/assets/vehicle_tuning_list.hpp

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <string>
+#include <vector>
+#include <cstdint>
+#include <memory>
+
+namespace assets
+{
+
+struct VehicleWheelPreset
+{
+    uint32_t price;
+    std::string displayname;
+    std::string model;
+
+};
+
+struct VehicleTuningList
+{
+    std::vector<VehicleWheelPreset> wheels;
+
+    static std::unique_ptr<const VehicleTuningList> LoadFromFile(const std::string& filename);
+};
+
+
+}

src/assets/vehiclemdl.cpp

@@ -48,6 +48,9 @@ std::shared_ptr<const assets::VehicleModel> assets::VehicleModel::LoadFromFile(c
         }
     });
 
+    // tuning list
+    veh->tuninglist_ = VehicleTuningList::LoadFromFile(filename + ".tun");
+
     return veh;
 }
 

src/assets/vehiclemdl.hpp

@@ -2,6 +2,7 @@
 
 #include "model.hpp"
 #include "utils/transform.hpp"
+#include "vehicle_tuning_list.hpp"
 
 namespace assets
 {
@@ -35,11 +36,13 @@ public:
     const std::shared_ptr<const Model>& GetModel() const { return basemodel_; } 
     const std::vector<VehicleWheel>& GetWheels() const { return wheels_; }
     const Transform* GetLocation(const std::string& name) const;
+    const VehicleTuningList& GetTuningList() const { return *tuninglist_; }
 
 private:
     std::shared_ptr<const Model> basemodel_;
     std::vector<VehicleWheel> wheels_;
     std::map<std::string, Transform> locations_;
+    std::unique_ptr<const VehicleTuningList> tuninglist_;
 
 
 };

src/game/drivable_vehicle.cpp

@@ -2,8 +2,7 @@
 #include "player_character.hpp"
 #include "utils/random.hpp"
 
-game::DrivableVehicle::DrivableVehicle(World& world, std::string model_name, const glm::vec3& color)
+game::DrivableVehicle::DrivableVehicle(World& world, const VehicleTuning& tuning) : Vehicle(world, tuning)
-    : Vehicle(world, std::move(model_name), color)
 {
     InitSeats();
 }

src/game/drivable_vehicle.hpp

@@ -16,7 +16,7 @@ struct VehicleSeat
 class DrivableVehicle : public Vehicle, public Usable
 {
 public:
-    DrivableVehicle(World& world, std::string model_name, const glm::vec3& color);
+    DrivableVehicle(World& world, const VehicleTuning& tuning);
 
     virtual void Use(PlayerCharacter& character, uint32_t target_id) override;
 

src/game/openworld.cpp

@@ -36,6 +36,14 @@ static glm::vec3 GetRandomColor()
     return color;
 }
 
+static uint32_t GetRandomColor24()
+{
+    uint8_t r,g,b;
+    r = rand() % 256;
+    g = rand() % 256;
+    b = rand() % 256;
+    return (b << 16) | (g << 8) | r;
+}
 
 game::OpenWorld::OpenWorld() : World("openworld")
 {
@@ -47,7 +55,14 @@ game::OpenWorld::OpenWorld() : World("openworld")
         SpawnBot();
     }
 
-    auto& veh = Spawn<game::DrivableVehicle>("twingo", glm::vec3{1.0f, 0.8f, 0.1f});
+    // initial twingo
+    VehicleTuning twingo_tuning;
+    twingo_tuning.model = "twingo";
+    twingo_tuning.primary_color = 0x0077FF;
+    twingo_tuning.wheels_idx = 1; // enkei
+    twingo_tuning.wheel_color = 0x00FF00;
+
+    auto& veh = Spawn<game::DrivableVehicle>(twingo_tuning);
     veh.SetPosition({110.0f, 100.0f, 5.0f});
 
     constexpr size_t in_row = 20;
@@ -59,7 +74,7 @@ game::OpenWorld::OpenWorld() : World("openworld")
             size_t row = i / in_row;
             glm::vec3 pos(62.0f + static_cast<float>(col) * 4.0f, 165.0f + static_cast<float>(row) * 7.0f, 7.0f);
 
-            auto& veh = Spawn<game::DrivableVehicle>(GetRandomCarModel(), GetRandomColor());
+            auto& veh = SpawnRandomVehicle();
             veh.SetPosition(pos);
         });
     }
@@ -157,29 +172,32 @@ void game::OpenWorld::RemovePlayerCharacter(Player& player)
     }
 }
 
-static game::DrivableVehicle& SpawnRandomVehicle(game::World& world)
+game::DrivableVehicle& game::OpenWorld::SpawnRandomVehicle()
 {
-    auto roads = world.GetMap().GetGraph("roads");
+    game::VehicleTuning tuning;
+    tuning.model = GetRandomCarModel();
+    tuning.primary_color = GetRandomColor24();
 
-    if (!roads)
+    auto& vehicle = Spawn<game::DrivableVehicle>(tuning);
-    {
-        throw std::runtime_error("SpawnRandomVehicle: no roads graph in map");
-    }
-
-    size_t start_node = rand() % roads->nodes.size();
-    // auto color = glm::vec3{0.3f, 0.3f, 0.3f};
-    auto color = GetRandomColor();
-    auto& vehicle = world.Spawn<game::DrivableVehicle>(GetRandomCarModel(), color);
     // vehicle.SetNametag("bot (" + std::to_string(vehicle.GetEntNum()) + ")");
-    vehicle.SetPosition(roads->nodes[start_node].position + glm::vec3{0.0f, 0.0f, 5.0f});
 
     return vehicle;
 }
 
 void game::OpenWorld::SpawnBot()
 {
-    auto& vehicle = SpawnRandomVehicle(*this);
+    auto roads = GetMap().GetGraph("roads");
-    auto& driver = SpawnRandomCharacter<NpcCharacter>(*this);
 
+    if (!roads)
+    {
+        throw std::runtime_error("SpawnBot: no roads graph in map");
+    }
+
+    size_t start_node = rand() % roads->nodes.size();
+
+    auto& vehicle = SpawnRandomVehicle();
+    vehicle.SetPosition(roads->nodes[start_node].position + glm::vec3{0.0f, 0.0f, 5.0f});
+
+    auto& driver = SpawnRandomCharacter<NpcCharacter>(*this);
     driver.SetVehicle(&vehicle, 0);
 }

src/game/openworld.hpp

@@ -4,6 +4,7 @@
 #include "vehicle.hpp"
 #include "character.hpp"
 #include "usable.hpp"
+#include "drivable_vehicle.hpp"
 
 #include <optional>
 
@@ -31,6 +32,7 @@ private:
     void CreatePlayerCharacter(Player& player);
     void RemovePlayerCharacter(Player& player);
     
+    game::DrivableVehicle& SpawnRandomVehicle();
     void SpawnBot();
 
 private:

src/game/vehicle.cpp

@@ -13,10 +13,9 @@ static std::shared_ptr<const assets::VehicleModel> LoadVehicleModelByName(const
     return assets::CacheManager::GetVehicleModel("data/" + model_name + ".veh");
 }
 
-game::Vehicle::Vehicle(World& world, std::string model_name, const glm::vec3& color)
+game::Vehicle::Vehicle(World& world, const VehicleTuning& tuning)
-    : Entity(world, net::ET_VEHICLE), model_name_(model_name), model_(LoadVehicleModelByName(model_name)),
+    : Entity(world, net::ET_VEHICLE), tuning_(tuning), model_(LoadVehicleModelByName(tuning.model)),
-      motion_(root_.local),
+      motion_(root_.local)
-      color_(color)
 {
     root_.local.position.z = 10.0f;
 
@@ -37,8 +36,8 @@ game::Vehicle::Vehicle(World& world, std::string model_name, const glm::vec3& co
     collision::SetObjectInfo(body_.get(), collision::OT_ENTITY, collision::OF_NOTIFY_CONTACT, this);
 
     // setup vehicle
-    btRaycastVehicle::btVehicleTuning tuning;
+    btRaycastVehicle::btVehicleTuning bt_tuning;
-    vehicle_ = std::make_unique<collision::RaycastVehicle>(tuning, body_.get(), &world_.GetVehicleRaycaster());
+    vehicle_ = std::make_unique<collision::RaycastVehicle>(bt_tuning, body_.get(), &world_.GetVehicleRaycaster());
     vehicle_->setCoordinateSystem(0, 2, 1);
 
     // setup wheels
@@ -76,7 +75,7 @@ game::Vehicle::Vehicle(World& world, std::string model_name, const glm::vec3& co
 
         btVector3 wheel_pos(wheeldef.position.x, wheeldef.position.y, wheeldef.position.z + wheel_z_offset_);
         auto& wi = vehicle_->addWheel(wheel_pos, wheelDirectionCS0, wheelAxleCS, suspensionRestLength, wheelRadius,
-                                      tuning, is_front);
+                                      bt_tuning, is_front);
 
         wi.m_suspensionStiffness = suspensionStiffness;
 
@@ -126,9 +125,8 @@ void game::Vehicle::SendInitData(Player& player, net::OutMessage& msg) const
 {
     Super::SendInitData(player, msg);
 
-    net::ModelName name(model_name_);
+    msg.Write(net::ModelName(tuning_.model));
-    msg.Write(name);
+    WriteTuning(msg);
-    net::WriteRGB(msg, color_); // primary color
     
     // write state against default
     static const VehicleSyncState default_state;
@@ -553,3 +551,12 @@ void game::Vehicle::SendDeformMsg(const net::PositionQ& pos, const net::Position
     net::WritePositionQ(msg, pos);
     net::WritePositionQ(msg, deform);
 }
+
+void game::Vehicle::WriteTuning(net::OutMessage& msg) const
+{
+    net::WriteRGB(msg, tuning_.primary_color);
+
+    // wheels
+    msg.Write<net::TuningPartIdx>(tuning_.wheels_idx);
+    net::WriteRGB(msg, tuning_.wheel_color);
+}

src/game/vehicle.hpp

@@ -10,6 +10,7 @@
 #include "world.hpp"
 #include "vehicle_sync.hpp"
 #include "deform_grid.hpp"
+#include "vehicle_tuning.hpp"
 
 namespace game
 {
@@ -37,7 +38,7 @@ class Vehicle : public Entity
 public:
     using Super = Entity;
 
-    Vehicle(World& world, std::string model_name, const glm::vec3& color);
+    Vehicle(World& world, const VehicleTuning& tuning);
 
     virtual void Update() override;
     virtual void SendInitData(Player& player, net::OutMessage& msg) const override;
@@ -55,9 +56,8 @@ public:
 
     void SetSteering(bool analog, float value = 0.0f);
 
-    const std::string& GetModelName() const { return model_name_; }
+    const std::string& GetModelName() const { return tuning_.model; }
     const std::shared_ptr<const assets::VehicleModel>& GetModel() const { return model_; }
-    const glm::vec3& GetColor() const { return color_; }
 
     virtual ~Vehicle();
 
@@ -74,10 +74,11 @@ private:
     void Deform(const glm::vec3& pos, const glm::vec3& deform, float radius);
     void SendDeformMsg(const net::PositionQ& pos, const net::PositionQ& deform);
 
+    void WriteTuning(net::OutMessage& msg) const;
+
 private:
-    std::string model_name_;
+    VehicleTuning tuning_;
     std::shared_ptr<const assets::VehicleModel> model_;
-    glm::vec3 color_;
 
     collision::MotionState motion_;
     std::unique_ptr<btRigidBody> body_;

src/game/vehicle_tuning.hpp

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <string>
+
+namespace game
+{
+
+struct VehicleTuning
+{
+    std::string model;
+    
+    uint32_t primary_color = 0xFFFFFFFF;
+    
+    size_t wheels_idx = 0;
+    uint32_t wheel_color = 0xFFFFFFFF;
+};
+
+
+}

src/gameview/vehicleview.cpp

@@ -12,8 +12,7 @@ game::view::VehicleView::VehicleView(WorldView& world, net::InMessage& msg)
     : EntityView(world, msg)
 {
     net::ModelName modelname;
-    glm::vec3 color;
+    if (!msg.Read(modelname))
-    if (!msg.Read(modelname) || !net::ReadRGB(msg, color))
         throw EntityInitError();
 
     model_ = assets::CacheManager::GetVehicleModel("data/" + std::string(modelname) + ".veh");
@@ -28,12 +27,7 @@ game::view::VehicleView::VehicleView(WorldView& world, net::InMessage& msg)
         wheels_[i].node.parent = &root_;
     }
     
-    color_ = glm::vec4(color, 1.0f);
+    if (!ReadTuning(msg) || !ReadState(&msg) || !ReadDeformSync(msg))
-    
-    if (!ReadState(&msg))
-        throw EntityInitError();
-
-    if (!ReadDeformSync(msg))
         throw EntityInitError();
     
     // init the other transform to identical
@@ -139,13 +133,14 @@ void game::view::VehicleView::Draw(const DrawArgs& args)
     const auto& wheels = model_->GetWheels();
     for (size_t i = 0; i < wheels.size(); ++i)
     {
-        const auto& mesh = *wheels[i].model->GetMesh();
+        const auto& mesh = *wheels_[i].model->GetMesh();
 
         for (const auto& surface : mesh.surfaces)
         {
             gfx::DrawSurfaceCmd cmd;
             cmd.surface = &surface;
             cmd.matrices = &wheels_[i].node.matrix;
+            cmd.color = &wheels_[i].color;
             args.dlist.AddSurface(cmd);
         }
     }
@@ -189,6 +184,35 @@ void game::view::VehicleView::InitMesh()
     deform_->tex->SetData(deform_->grid.GetData());
 }
 
+bool game::view::VehicleView::ReadTuning(net::InMessage& msg)
+{
+    uint32_t color, wheel_color;
+    net::TuningPartIdx wheel_idx;
+
+    const auto& tuninglist = model_->GetTuningList();
+
+    if (!net::ReadRGB(msg, color))
+        return false;
+
+    color_ = glm::unpackUnorm4x8(color);
+
+    // wheels
+    if (!msg.Read(wheel_idx) || !net::ReadRGB(msg, wheel_color))
+        return false;
+
+    auto wheelmodel = wheel_idx < tuninglist.wheels.size() ? assets::CacheManager::GetModel("data/" + tuninglist.wheels[wheel_idx].model + ".mdl") : nullptr;
+    glm::vec3 wheelcolor = glm::unpackUnorm4x8(wheel_color);
+
+    for (size_t i = 0; i < wheels_.size(); ++i)
+    {
+        auto& wheel = wheels_[i];
+        wheel.model = wheelmodel ? wheelmodel : model_->GetWheels()[i].model;
+        wheel.color = glm::vec4(wheelcolor, 1.0f);
+    }
+
+    return true;
+}
+
 bool game::view::VehicleView::ReadState(net::InMessage* msg)
 {
     root_trans_[0] = root_.local;

src/gameview/vehicleview.hpp

@@ -13,6 +13,9 @@ namespace game::view
 
 struct VehicleWheelViewInfo
 {
+    std::shared_ptr<const assets::Model> model;
+    glm::vec4 color;
+
     TransformNode node;
     float steering = 0.0f;
     float z_offset = 0.0f;
@@ -43,6 +46,7 @@ public:
 private:
     void InitMesh();
 
+    bool ReadTuning(net::InMessage& msg);
     bool ReadState(net::InMessage* msg);
 
     bool ReadDeformSync(net::InMessage& msg);

src/net/defs.hpp

@@ -135,4 +135,8 @@ using NumTexels = uint16_t;
 
 using Version = uint32_t;
 
+// tuning
+
+using TuningPartIdx = uint8_t;
+
 } // namespace net

src/net/utils.hpp

@@ -126,6 +126,25 @@ inline bool ReadRGB(InMessage& msg, glm::vec3& color)
     return msg.Read<ColorQ>(color.r) && msg.Read<ColorQ>(color.g) && msg.Read<ColorQ>(color.b);
 }
 
+// COLOR 24bit
+inline void WriteRGB(OutMessage& msg, uint32_t color)
+{
+    msg.Write<uint8_t>(color & 0xFF);
+    msg.Write<uint8_t>((color >> 8) & 0xFF);
+    msg.Write<uint8_t>((color >> 16) & 0xFF);
+}
+
+inline bool ReadRGB(InMessage& msg, uint32_t& color)
+{
+    uint8_t r, g, b;
+    if (!msg.Read(r) || !msg.Read(g) || !msg.Read(b))
+        return false;
+
+    color = (b << 16) | (g << 8) | r;
+    return true;
+}
+
+
 // DELTA
 template <std::unsigned_integral T> requires (sizeof(T) == 1)
 inline void WriteDelta(OutMessage& msg, T previous, T current)

src/utils/files.cpp

@@ -31,3 +31,13 @@ std::istringstream fs::ReadFileAsStream(const std::string& path)
     std::string content = ReadFileAsString(path);
     return std::istringstream(content);
 }
+
+bool fs::FileExists(const std::string& path)
+{
+    SDL_RWops *rw = SDL_RWFromFile(path.c_str(), "rb");
+    if (!rw)
+        return false;
+
+    SDL_RWclose(rw);
+    return true;
+}

src/utils/files.hpp

@@ -4,6 +4,7 @@
 
 namespace fs
 {
+    bool FileExists(const std::string& path);
     std::string ReadFileAsString(const std::string& path);
     std::istringstream ReadFileAsStream(const std::string& path);
 }

src/utils/files_server.cpp

@@ -1,6 +1,7 @@
 #include "files.hpp"
 
 #include <fstream>
+#include <filesystem>
 
 std::string fs::ReadFileAsString(const std::string& path)
 {
@@ -22,3 +23,8 @@ std::istringstream fs::ReadFileAsStream(const std::string& path)
     std::string content = ReadFileAsString(path);
     return std::istringstream(content);
 }
+
+bool fs::FileExists(const std::string& path)
+{
+    return std::filesystem::exists(path);
+}

src/utils/version.hpp

@@ -1,3 +1,3 @@
 #pragma once
 
-#define FEKAL_VERSION 2026031401
+#define FEKAL_VERSION 2026032001