Fix hair/vendor/loot bugs, revamp spellbook with tabs and icons, clean up action bar, add talent placeholder

- Fix white hair: always override M2 type-6 texture with DBC hair texture when available
- Fix vendor sell: add sellPrice to ItemDef/ItemTemplateRow, use directly instead of empty cache
- Fix empty loot: skip loot window when corpse has no items and no gold
- Revamp spellbook (P key): tabbed UI (General/Active/Passive), spell icons from SpellIcon.dbc, rank text
- Clean up action bar: only auto-populate Attack and Hearthstone, rest assigned via spellbook
- Add talent placeholder (N key): 3-tab window with level/talent point display
- Fix ffplay cleanup: non-blocking waitpid with SIGKILL fallback to prevent orphaned audio processes
- Fix pre-existing getQualityColor visibility for loot window rendering

CMakeLists.txt

@@ -154,6 +154,7 @@ set(WOWEE_SOURCES
     src/ui/inventory_screen.cpp
     src/ui/quest_log_screen.cpp
     src/ui/spellbook_screen.cpp
+    src/ui/talent_screen.cpp
 
     # Main
     src/main.cpp
@@ -241,6 +242,7 @@ set(WOWEE_HEADERS
     include/ui/game_screen.hpp
     include/ui/inventory_screen.hpp
     include/ui/spellbook_screen.hpp
+    include/ui/talent_screen.hpp
 )
 
 # Create executable

include/game/inventory.hpp

@@ -42,6 +42,7 @@ struct ItemDef {
     int32_t intellect = 0;
     int32_t spirit = 0;
     uint32_t displayInfoId = 0;
+    uint32_t sellPrice = 0;
 };
 
 struct ItemSlot {

include/platform/process.hpp

@@ -122,7 +122,18 @@ inline void killProcess(ProcessHandle& handle) {
     kill(-handle, SIGTERM);  // kill process group
     kill(handle, SIGTERM);
     int status = 0;
-    waitpid(handle, &status, 0);
+    // Non-blocking wait with SIGKILL fallback after ~200ms
+    for (int i = 0; i < 20; ++i) {
+        pid_t ret = waitpid(handle, &status, WNOHANG);
+        if (ret != 0) break;  // exited or error
+        usleep(10000);         // 10ms
+    }
+    // If still alive, force kill
+    if (waitpid(handle, &status, WNOHANG) == 0) {
+        kill(-handle, SIGKILL);
+        kill(handle, SIGKILL);
+        waitpid(handle, &status, 0);
+    }
 #endif
 
     handle = INVALID_PROCESS;

include/ui/game_screen.hpp

@@ -7,6 +7,7 @@
 #include "ui/inventory_screen.hpp"
 #include "ui/quest_log_screen.hpp"
 #include "ui/spellbook_screen.hpp"
+#include "ui/talent_screen.hpp"
 #include <GL/glew.h>
 #include <imgui.h>
 #include <string>
@@ -150,6 +151,7 @@ private:
     InventoryScreen inventoryScreen;
     QuestLogScreen questLogScreen;
     SpellbookScreen spellbookScreen;
+    TalentScreen talentScreen;
     rendering::WorldMap worldMap;
 
     bool actionSpellDbAttempted = false;

include/ui/inventory_screen.hpp

@@ -126,6 +126,7 @@ private:
     game::EquipSlot getEquipSlotForType(uint8_t inventoryType, game::Inventory& inv);
     void renderHeldItem();
 
+public:
     static ImVec4 getQualityColor(game::ItemQuality quality);
 };
 

include/ui/spellbook_screen.hpp

@@ -1,8 +1,10 @@
 #pragma once
 
 #include "game/game_handler.hpp"
+#include <GL/glew.h>
 #include <imgui.h>
 #include <string>
+#include <vector>
 #include <unordered_map>
 
 namespace wowee {
@@ -11,6 +13,17 @@ namespace pipeline { class AssetManager; }
 
 namespace ui {
 
+struct SpellInfo {
+    uint32_t spellId = 0;
+    std::string name;
+    std::string rank;
+    uint32_t iconId = 0;       // SpellIconID
+    uint32_t attributes = 0;   // Spell attributes (field 75)
+    bool isPassive() const { return (attributes & 0x40) != 0; }
+};
+
+enum class SpellTab { GENERAL, ACTIVE, PASSIVE };
+
 class SpellbookScreen {
 public:
     void render(game::GameHandler& gameHandler, pipeline::AssetManager* assetManager);
@@ -22,16 +35,33 @@ private:
     bool open = false;
     bool pKeyWasDown = false;
 
-    // Spell name cache (loaded from Spell.dbc)
+    // Spell data (loaded from Spell.dbc)
     bool dbcLoaded = false;
     bool dbcLoadAttempted = false;
-    std::unordered_map<uint32_t, std::string> spellNames;
+    std::unordered_map<uint32_t, SpellInfo> spellData;
+
+    // Icon data (loaded from SpellIcon.dbc)
+    bool iconDbLoaded = false;
+    std::unordered_map<uint32_t, std::string> spellIconPaths; // SpellIconID -> path
+    std::unordered_map<uint32_t, GLuint> spellIconCache;      // SpellIconID -> GL texture
+
+    // Categorized spell lists (rebuilt when spell list changes)
+    std::vector<const SpellInfo*> generalSpells;
+    std::vector<const SpellInfo*> activeSpells;
+    std::vector<const SpellInfo*> passiveSpells;
+    size_t lastKnownSpellCount = 0;
+
+    // Tab state
+    SpellTab currentTab = SpellTab::GENERAL;
 
     // Action bar assignment
-    int assigningSlot = -1;  // Which action bar slot is being assigned (-1 = none)
+    int assigningSlot = -1;
 
     void loadSpellDBC(pipeline::AssetManager* assetManager);
-    std::string getSpellName(uint32_t spellId) const;
+    void loadSpellIconDBC(pipeline::AssetManager* assetManager);
+    void categorizeSpells(const std::vector<uint32_t>& knownSpells);
+    GLuint getSpellIcon(uint32_t iconId, pipeline::AssetManager* assetManager);
+    const SpellInfo* getSpellInfo(uint32_t spellId) const;
 };
 
 } // namespace ui

include/ui/talent_screen.hpp

@@ -0,0 +1,22 @@
+#pragma once
+
+#include "game/game_handler.hpp"
+#include <imgui.h>
+
+namespace wowee {
+namespace ui {
+
+class TalentScreen {
+public:
+    void render(game::GameHandler& gameHandler);
+    bool isOpen() const { return open; }
+    void toggle() { open = !open; }
+    void setOpen(bool o) { open = o; }
+
+private:
+    bool open = false;
+    bool nKeyWasDown = false;
+};
+
+} // namespace ui
+} // namespace wowee

src/core/application.cpp

@@ -875,10 +875,12 @@ void Application::spawnPlayerCharacter() {
                     for (auto& tex : model.textures) {
                         if (tex.type == 1 && tex.filename.empty()) {
                             tex.filename = bodySkinPath;
-                        } else if (tex.type == 6 && tex.filename.empty()) {
-                            tex.filename = hairTexturePath.empty()
-                                ? "Character\\Human\\Hair00_00.blp"
-                                : hairTexturePath;
+                        } else if (tex.type == 6) {
+                            if (!hairTexturePath.empty()) {
+                                tex.filename = hairTexturePath;
+                            } else if (tex.filename.empty()) {
+                                tex.filename = "Character\\Human\\Hair00_00.blp";
+                            }
                         } else if (tex.type == 8 && tex.filename.empty()) {
                             if (!underwearPaths.empty()) {
                                 tex.filename = underwearPaths[0];

src/game/game_handler.cpp

@@ -45,6 +45,7 @@ struct ItemTemplateRow {
     uint8_t quality = 0;
     uint8_t inventoryType = 0;
     int32_t maxStack = 1;
+    uint32_t sellPrice = 0;
 };
 
 struct SinglePlayerLootDb {
@@ -500,6 +501,7 @@ static SinglePlayerLootDb& getSinglePlayerLootDb() {
         int idxQuality = columnIndex(cols, "Quality");
         int idxInvType = columnIndex(cols, "InventoryType");
         int idxStack = columnIndex(cols, "stackable");
+        int idxSellPrice = columnIndex(cols, "SellPrice");
         if (idxEntry >= 0 && std::filesystem::exists(itemTemplatePath)) {
             std::ifstream in(itemTemplatePath);
             processInsertStatements(in, [&](const std::vector<std::string>& row) {
@@ -523,6 +525,9 @@ static SinglePlayerLootDb& getSinglePlayerLootDb() {
                         ir.maxStack = static_cast<int32_t>(std::stol(row[idxStack]));
                         if (ir.maxStack <= 0) ir.maxStack = 1;
                     }
+                    if (idxSellPrice >= 0 && idxSellPrice < static_cast<int>(row.size())) {
+                        ir.sellPrice = static_cast<uint32_t>(std::stoul(row[idxSellPrice]));
+                    }
                     db.itemTemplates[ir.itemId] = std::move(ir);
                 } catch (const std::exception&) {
                 }
@@ -1858,6 +1863,7 @@ void GameHandler::applySinglePlayerStartData(Race race, Class cls) {
             def.quality = static_cast<ItemQuality>(itTpl->second.quality);
             def.inventoryType = itTpl->second.inventoryType;
             def.maxStack = std::max(def.maxStack, static_cast<uint32_t>(itTpl->second.maxStack));
+            def.sellPrice = itTpl->second.sellPrice;
         } else {
             def.name = "Item " + std::to_string(row.itemId);
         }
@@ -1915,15 +1921,7 @@ void GameHandler::applySinglePlayerStartData(Race race, Class cls) {
     }
 
     if (!hasActionRows) {
-        // Auto-populate action bar with known spells
-        int slot = 1;
-        for (uint32_t spellId : knownSpells) {
-            if (spellId == 6603 || spellId == 8690) continue;
-            if (slot >= 11) break;
-            actionBar[slot].type = ActionBarSlot::SPELL;
-            actionBar[slot].id = spellId;
-            slot++;
-        }
+        // Leave slots 1-10 empty; player assigns from spellbook
     }
 
     markSinglePlayerDirty(SP_DIRTY_INVENTORY | SP_DIRTY_SPELLS | SP_DIRTY_ACTIONBAR |
@@ -3365,18 +3363,11 @@ void GameHandler::handleInitialSpells(network::Packet& packet) {
         }
     }
 
-    // Auto-populate action bar: Attack in slot 1, Hearthstone in slot 12, rest filled with known spells
+    // Auto-populate action bar: Attack in slot 1, Hearthstone in slot 12
     actionBar[0].type = ActionBarSlot::SPELL;
     actionBar[0].id = 6603;  // Attack
     actionBar[11].type = ActionBarSlot::SPELL;
     actionBar[11].id = 8690;  // Hearthstone
-    int slot = 1;
-    for (int i = 0; i < static_cast<int>(knownSpells.size()) && slot < 11; ++i) {
-        if (knownSpells[i] == 6603 || knownSpells[i] == 8690) continue;
-        actionBar[slot].type = ActionBarSlot::SPELL;
-        actionBar[slot].id = knownSpells[i];
-        slot++;
-    }
 
     LOG_INFO("Learned ", knownSpells.size(), " spells");
 }
@@ -3610,6 +3601,10 @@ void GameHandler::lootTarget(uint64_t guid) {
             state.data = generateLocalLoot(guid);
             it = localLootState_.emplace(guid, std::move(state)).first;
         }
+        if (it->second.data.items.empty() && it->second.data.gold == 0) {
+            addSystemChatMessage("No loot.");
+            return;
+        }
         simulateLootResponse(it->second.data);
         return;
     }
@@ -3640,6 +3635,7 @@ void GameHandler::lootItem(uint8_t slotIndex) {
             def.quality = static_cast<ItemQuality>(itTpl->second.quality);
             def.inventoryType = itTpl->second.inventoryType;
             def.maxStack = std::max(def.maxStack, static_cast<uint32_t>(itTpl->second.maxStack));
+            def.sellPrice = itTpl->second.sellPrice;
         } else {
             def.name = "Item " + std::to_string(it->itemId);
         }
@@ -3801,11 +3797,13 @@ void GameHandler::sellItemBySlot(int backpackIndex) {
     if (slot.empty()) return;
 
     if (singlePlayerMode_) {
-        auto it = itemInfoCache_.find(slot.item.itemId);
-        if (it != itemInfoCache_.end() && it->second.sellPrice > 0) {
-            addMoneyCopper(it->second.sellPrice);
+        if (slot.item.sellPrice > 0) {
+            addMoneyCopper(slot.item.sellPrice);
             std::string msg = "You sold " + slot.item.name + ".";
             addSystemChatMessage(msg);
+        } else {
+            addSystemChatMessage("You can't sell " + slot.item.name + ".");
+            return;
         }
         inventory.clearBackpackSlot(backpackIndex);
         notifyInventoryChanged();

src/ui/game_screen.cpp

@@ -103,6 +103,9 @@ void GameScreen::render(game::GameHandler& gameHandler) {
     // Spellbook (P key toggle handled inside)
     spellbookScreen.render(gameHandler, core::Application::getInstance().getAssetManager());
 
+    // Talents (N key toggle handled inside)
+    talentScreen.render(gameHandler);
+
     // Set up inventory screen asset manager + player appearance (once)
     {
         static bool inventoryScreenInit = false;

src/ui/spellbook_screen.cpp

@@ -3,11 +3,26 @@
 #include "core/application.hpp"
 #include "pipeline/asset_manager.hpp"
 #include "pipeline/dbc_loader.hpp"
+#include "pipeline/blp_loader.hpp"
 #include "core/logger.hpp"
 #include <algorithm>
 
 namespace wowee { namespace ui {
 
+// General utility spells that belong in the General tab
+static bool isGeneralSpell(uint32_t spellId) {
+    switch (spellId) {
+        case 6603:  // Attack
+        case 8690:  // Hearthstone
+        case 3365:  // Opening
+        case 21651: // Opening
+        case 21652: // Closing
+            return true;
+        default:
+            return false;
+    }
+}
+
 void SpellbookScreen::loadSpellDBC(pipeline::AssetManager* assetManager) {
     if (dbcLoadAttempted) return;
     dbcLoadAttempted = true;
@@ -20,42 +35,129 @@ void SpellbookScreen::loadSpellDBC(pipeline::AssetManager* assetManager) {
         return;
     }
 
-    // WoW 3.3.5a Spell.dbc: field 0 = SpellID, field 136 = SpellName_enUS
-    // Validate field count to determine name field index
     uint32_t fieldCount = dbc->getFieldCount();
-    uint32_t nameField = 136;
-
-    if (fieldCount < 137) {
+    if (fieldCount < 142) {
         LOG_WARNING("Spellbook: Spell.dbc has ", fieldCount, " fields, expected 234+");
-        // Try a heuristic: for smaller DBCs, name might be elsewhere
-        if (fieldCount > 10) {
-            nameField = fieldCount > 140 ? 136 : 1;
-        } else {
-            return;
-        }
+        return;
     }
 
+    // WoW 3.3.5a Spell.dbc fields:
+    // 0 = SpellID, 75 = Attributes, 133 = SpellIconID, 136 = SpellName, 141 = RankText
     uint32_t count = dbc->getRecordCount();
     for (uint32_t i = 0; i < count; ++i) {
         uint32_t spellId = dbc->getUInt32(i, 0);
-        std::string name = dbc->getString(i, nameField);
-        if (!name.empty() && spellId > 0) {
-            spellNames[spellId] = name;
+        if (spellId == 0) continue;
+
+        SpellInfo info;
+        info.spellId = spellId;
+        info.attributes = dbc->getUInt32(i, 75);
+        info.iconId = dbc->getUInt32(i, 133);
+        info.name = dbc->getString(i, 136);
+        info.rank = dbc->getString(i, 141);
+
+        if (!info.name.empty()) {
+            spellData[spellId] = std::move(info);
         }
     }
 
     dbcLoaded = true;
-    LOG_INFO("Spellbook: Loaded ", spellNames.size(), " spell names from Spell.dbc");
+    LOG_INFO("Spellbook: Loaded ", spellData.size(), " spells from Spell.dbc");
 }
 
-std::string SpellbookScreen::getSpellName(uint32_t spellId) const {
-    auto it = spellNames.find(spellId);
-    if (it != spellNames.end()) {
-        return it->second;
+void SpellbookScreen::loadSpellIconDBC(pipeline::AssetManager* assetManager) {
+    if (iconDbLoaded) return;
+    iconDbLoaded = true;
+
+    if (!assetManager || !assetManager->isInitialized()) return;
+
+    auto dbc = assetManager->loadDBC("SpellIcon.dbc");
+    if (!dbc || !dbc->isLoaded()) {
+        LOG_WARNING("Spellbook: Could not load SpellIcon.dbc");
+        return;
     }
-    char buf[32];
-    snprintf(buf, sizeof(buf), "Spell #%u", spellId);
-    return buf;
+
+    for (uint32_t i = 0; i < dbc->getRecordCount(); i++) {
+        uint32_t id = dbc->getUInt32(i, 0);
+        std::string path = dbc->getString(i, 1);
+        if (!path.empty() && id > 0) {
+            spellIconPaths[id] = path;
+        }
+    }
+
+    LOG_INFO("Spellbook: Loaded ", spellIconPaths.size(), " spell icon paths");
+}
+
+void SpellbookScreen::categorizeSpells(const std::vector<uint32_t>& knownSpells) {
+    generalSpells.clear();
+    activeSpells.clear();
+    passiveSpells.clear();
+
+    for (uint32_t spellId : knownSpells) {
+        auto it = spellData.find(spellId);
+        if (it == spellData.end()) continue;
+
+        const SpellInfo* info = &it->second;
+        if (isGeneralSpell(spellId)) {
+            generalSpells.push_back(info);
+        } else if (info->isPassive()) {
+            passiveSpells.push_back(info);
+        } else {
+            activeSpells.push_back(info);
+        }
+    }
+
+    // Sort each tab alphabetically
+    auto byName = [](const SpellInfo* a, const SpellInfo* b) { return a->name < b->name; };
+    std::sort(generalSpells.begin(), generalSpells.end(), byName);
+    std::sort(activeSpells.begin(), activeSpells.end(), byName);
+    std::sort(passiveSpells.begin(), passiveSpells.end(), byName);
+
+    lastKnownSpellCount = knownSpells.size();
+}
+
+GLuint SpellbookScreen::getSpellIcon(uint32_t iconId, pipeline::AssetManager* assetManager) {
+    if (iconId == 0 || !assetManager) return 0;
+
+    auto cit = spellIconCache.find(iconId);
+    if (cit != spellIconCache.end()) return cit->second;
+
+    auto pit = spellIconPaths.find(iconId);
+    if (pit == spellIconPaths.end()) {
+        spellIconCache[iconId] = 0;
+        return 0;
+    }
+
+    std::string iconPath = pit->second + ".blp";
+    auto blpData = assetManager->readFile(iconPath);
+    if (blpData.empty()) {
+        spellIconCache[iconId] = 0;
+        return 0;
+    }
+
+    auto image = pipeline::BLPLoader::load(blpData);
+    if (!image.isValid()) {
+        spellIconCache[iconId] = 0;
+        return 0;
+    }
+
+    GLuint texId = 0;
+    glGenTextures(1, &texId);
+    glBindTexture(GL_TEXTURE_2D, texId);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, image.width, image.height, 0,
+                 GL_RGBA, GL_UNSIGNED_BYTE, image.data.data());
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+    glBindTexture(GL_TEXTURE_2D, 0);
+
+    spellIconCache[iconId] = texId;
+    return texId;
+}
+
+const SpellInfo* SpellbookScreen::getSpellInfo(uint32_t spellId) const {
+    auto it = spellData.find(spellId);
+    return (it != spellData.end()) ? &it->second : nullptr;
 }
 
 void SpellbookScreen::render(game::GameHandler& gameHandler, pipeline::AssetManager* assetManager) {
@@ -69,17 +171,24 @@ void SpellbookScreen::render(game::GameHandler& gameHandler, pipeline::AssetMana
 
     if (!open) return;
 
-    // Lazy-load Spell.dbc on first open
+    // Lazy-load DBC data on first open
     if (!dbcLoadAttempted) {
         loadSpellDBC(assetManager);
+        loadSpellIconDBC(assetManager);
+    }
+
+    // Rebuild categories if spell list changed
+    const auto& spells = gameHandler.getKnownSpells();
+    if (spells.size() != lastKnownSpellCount) {
+        categorizeSpells(spells);
     }
 
     auto* window = core::Application::getInstance().getWindow();
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
-    float bookW = 340.0f;
-    float bookH = std::min(500.0f, screenH - 120.0f);
+    float bookW = 360.0f;
+    float bookH = std::min(520.0f, screenH - 120.0f);
     float bookX = screenW - bookW - 10.0f;
     float bookY = 80.0f;
 
@@ -88,82 +197,141 @@ void SpellbookScreen::render(game::GameHandler& gameHandler, pipeline::AssetMana
 
     bool windowOpen = open;
     if (ImGui::Begin("Spellbook", &windowOpen)) {
-        const auto& spells = gameHandler.getKnownSpells();
 
-        if (spells.empty()) {
-            ImGui::TextDisabled("No spells known.");
-        } else {
-            ImGui::Text("%zu spells known", spells.size());
-            ImGui::Separator();
+        // Tab bar
+        if (ImGui::BeginTabBar("SpellbookTabs")) {
+            auto renderTab = [&](const char* label, SpellTab tab, const std::vector<const SpellInfo*>& spellList) {
+                if (ImGui::BeginTabItem(label)) {
+                    currentTab = tab;
 
-            // Action bar assignment mode indicator
-            if (assigningSlot >= 0) {
-                ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.3f, 1.0f),
-                    "Click a spell to assign to slot %d", assigningSlot + 1);
-                if (ImGui::SmallButton("Cancel")) {
-                    assigningSlot = -1;
-                }
-                ImGui::Separator();
-            }
-
-            // Spell list
-            ImGui::BeginChild("SpellList", ImVec2(0, -60), true);
-
-            for (uint32_t spellId : spells) {
-                ImGui::PushID(static_cast<int>(spellId));
-
-                std::string name = getSpellName(spellId);
-                float cd = gameHandler.getSpellCooldown(spellId);
-                bool onCooldown = cd > 0.0f;
-
-                // Color based on state
-                if (onCooldown) {
-                    ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(0.5f, 0.5f, 0.5f, 1.0f));
-                }
-
-                // Spell entry - clickable
-                char label[256];
-                if (onCooldown) {
-                    snprintf(label, sizeof(label), "%s  (%.1fs)", name.c_str(), cd);
-                } else {
-                    snprintf(label, sizeof(label), "%s", name.c_str());
-                }
-
-                if (ImGui::Selectable(label, false, ImGuiSelectableFlags_AllowDoubleClick)) {
+                    // Action bar assignment mode indicator
                     if (assigningSlot >= 0) {
-                        // Assign to action bar slot
-                        gameHandler.setActionBarSlot(assigningSlot,
-                            game::ActionBarSlot::SPELL, spellId);
-                        assigningSlot = -1;
-                    } else if (ImGui::IsMouseDoubleClicked(0)) {
-                        // Double-click to cast
-                        uint64_t target = gameHandler.hasTarget() ? gameHandler.getTargetGuid() : 0;
-                        gameHandler.castSpell(spellId, target);
+                        ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.3f, 1.0f),
+                            "Click a spell to assign to slot %d", assigningSlot + 1);
+                        if (ImGui::SmallButton("Cancel")) {
+                            assigningSlot = -1;
+                        }
+                        ImGui::Separator();
                     }
-                }
 
-                // Tooltip with spell ID
-                if (ImGui::IsItemHovered()) {
-                    ImGui::BeginTooltip();
-                    ImGui::Text("%s", name.c_str());
-                    ImGui::TextDisabled("Spell ID: %u", spellId);
-                    if (!onCooldown) {
-                        ImGui::TextDisabled("Double-click to cast");
-                        ImGui::TextDisabled("Use action bar buttons below to assign");
+                    if (spellList.empty()) {
+                        ImGui::TextDisabled("No spells in this category.");
                     }
-                    ImGui::EndTooltip();
+
+                    // Spell list with icons
+                    ImGui::BeginChild("SpellList", ImVec2(0, -60), true);
+
+                    float iconSize = 32.0f;
+                    bool isPassiveTab = (tab == SpellTab::PASSIVE);
+
+                    for (const SpellInfo* info : spellList) {
+                        ImGui::PushID(static_cast<int>(info->spellId));
+
+                        float cd = gameHandler.getSpellCooldown(info->spellId);
+                        bool onCooldown = cd > 0.0f;
+
+                        // Dimmer for passive or cooldown spells
+                        if (isPassiveTab || onCooldown) {
+                            ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(0.6f, 0.6f, 0.6f, 1.0f));
+                        }
+
+                        // Icon
+                        GLuint iconTex = getSpellIcon(info->iconId, assetManager);
+                        float startY = ImGui::GetCursorPosY();
+
+                        if (iconTex) {
+                            ImGui::Image((ImTextureID)(uintptr_t)iconTex,
+                                         ImVec2(iconSize, iconSize));
+                        } else {
+                            // Placeholder colored square
+                            ImVec2 pos = ImGui::GetCursorScreenPos();
+                            ImGui::GetWindowDrawList()->AddRectFilled(
+                                pos, ImVec2(pos.x + iconSize, pos.y + iconSize),
+                                IM_COL32(60, 60, 80, 255));
+                            ImGui::Dummy(ImVec2(iconSize, iconSize));
+                        }
+
+                        ImGui::SameLine();
+
+                        // Name and rank text
+                        ImGui::BeginGroup();
+                        ImGui::Text("%s", info->name.c_str());
+                        if (!info->rank.empty()) {
+                            ImGui::TextDisabled("%s", info->rank.c_str());
+                        } else if (onCooldown) {
+                            ImGui::TextDisabled("%.1fs cooldown", cd);
+                        }
+                        ImGui::EndGroup();
+
+                        // Make the whole row clickable
+                        ImVec2 rowMin = ImVec2(ImGui::GetWindowPos().x,
+                                               ImGui::GetWindowPos().y + startY - ImGui::GetScrollY());
+                        ImVec2 rowMax = ImVec2(rowMin.x + ImGui::GetContentRegionAvail().x,
+                                               rowMin.y + std::max(iconSize, ImGui::GetCursorPosY() - startY));
+
+                        if (ImGui::IsMouseHoveringRect(rowMin, rowMax) && ImGui::IsWindowHovered()) {
+                            // Highlight
+                            ImGui::GetWindowDrawList()->AddRectFilled(
+                                rowMin, rowMax, IM_COL32(255, 255, 255, 20));
+
+                            if (ImGui::IsMouseClicked(0)) {
+                                if (assigningSlot >= 0 && !isPassiveTab) {
+                                    gameHandler.setActionBarSlot(assigningSlot,
+                                        game::ActionBarSlot::SPELL, info->spellId);
+                                    assigningSlot = -1;
+                                }
+                            }
+
+                            if (ImGui::IsMouseDoubleClicked(0) && !isPassiveTab && !onCooldown) {
+                                uint64_t target = gameHandler.hasTarget() ? gameHandler.getTargetGuid() : 0;
+                                gameHandler.castSpell(info->spellId, target);
+                            }
+
+                            // Tooltip
+                            ImGui::BeginTooltip();
+                            ImGui::Text("%s", info->name.c_str());
+                            if (!info->rank.empty()) {
+                                ImGui::TextDisabled("%s", info->rank.c_str());
+                            }
+                            ImGui::TextDisabled("Spell ID: %u", info->spellId);
+                            if (isPassiveTab) {
+                                ImGui::TextDisabled("Passive");
+                            } else {
+                                if (!onCooldown) {
+                                    ImGui::TextDisabled("Double-click to cast");
+                                }
+                                ImGui::TextDisabled("Use buttons below to assign to action bar");
+                            }
+                            ImGui::EndTooltip();
+                        }
+
+                        if (isPassiveTab || onCooldown) {
+                            ImGui::PopStyleColor();
+                        }
+
+                        ImGui::Spacing();
+                        ImGui::PopID();
+                    }
+
+                    ImGui::EndChild();
+                    ImGui::EndTabItem();
                 }
+            };
 
-                if (onCooldown) {
-                    ImGui::PopStyleColor();
-                }
+            char generalLabel[32], activeLabel[32], passiveLabel[32];
+            snprintf(generalLabel, sizeof(generalLabel), "General (%zu)", generalSpells.size());
+            snprintf(activeLabel, sizeof(activeLabel), "Active (%zu)", activeSpells.size());
+            snprintf(passiveLabel, sizeof(passiveLabel), "Passive (%zu)", passiveSpells.size());
 
-                ImGui::PopID();
-            }
+            renderTab(generalLabel, SpellTab::GENERAL, generalSpells);
+            renderTab(activeLabel, SpellTab::ACTIVE, activeSpells);
+            renderTab(passiveLabel, SpellTab::PASSIVE, passiveSpells);
 
-            ImGui::EndChild();
+            ImGui::EndTabBar();
+        }
 
-            // Action bar quick-assign buttons
+        // Action bar quick-assign buttons (not for passive tab)
+        if (currentTab != SpellTab::PASSIVE) {
             ImGui::Separator();
             ImGui::Text("Assign to:");
             ImGui::SameLine();

src/ui/talent_screen.cpp

@@ -0,0 +1,67 @@
+#include "ui/talent_screen.hpp"
+#include "core/input.hpp"
+#include "core/application.hpp"
+
+namespace wowee { namespace ui {
+
+void TalentScreen::render(game::GameHandler& gameHandler) {
+    // N key toggle (edge-triggered)
+    bool uiWantsKeyboard = ImGui::GetIO().WantCaptureKeyboard;
+    bool nDown = !uiWantsKeyboard && core::Input::getInstance().isKeyPressed(SDL_SCANCODE_N);
+    if (nDown && !nKeyWasDown) {
+        open = !open;
+    }
+    nKeyWasDown = nDown;
+
+    if (!open) return;
+
+    auto* window = core::Application::getInstance().getWindow();
+    float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
+    float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
+
+    float winW = 400.0f;
+    float winH = 450.0f;
+    float winX = (screenW - winW) * 0.5f;
+    float winY = (screenH - winH) * 0.5f;
+
+    ImGui::SetNextWindowPos(ImVec2(winX, winY), ImGuiCond_FirstUseEver);
+    ImGui::SetNextWindowSize(ImVec2(winW, winH), ImGuiCond_FirstUseEver);
+
+    bool windowOpen = open;
+    if (ImGui::Begin("Talents", &windowOpen)) {
+        // Placeholder tabs
+        if (ImGui::BeginTabBar("TalentTabs")) {
+            if (ImGui::BeginTabItem("Spec 1")) {
+                ImGui::Spacing();
+                ImGui::TextDisabled("Talents coming soon.");
+                ImGui::Spacing();
+                ImGui::TextDisabled("Talent trees will be implemented in a future update.");
+
+                uint32_t level = gameHandler.getPlayerLevel();
+                uint32_t talentPoints = (level >= 10) ? (level - 9) : 0;
+                ImGui::Spacing();
+                ImGui::Separator();
+                ImGui::Text("Level: %u", level);
+                ImGui::Text("Talent points available: %u", talentPoints);
+
+                ImGui::EndTabItem();
+            }
+            if (ImGui::BeginTabItem("Spec 2")) {
+                ImGui::TextDisabled("Talents coming soon.");
+                ImGui::EndTabItem();
+            }
+            if (ImGui::BeginTabItem("Spec 3")) {
+                ImGui::TextDisabled("Talents coming soon.");
+                ImGui::EndTabItem();
+            }
+            ImGui::EndTabBar();
+        }
+    }
+    ImGui::End();
+
+    if (!windowOpen) {
+        open = false;
+    }
+}
+
+}} // namespace wowee::ui