feat: implement basic tower placement

include/game/Towers.h

@@ -18,7 +18,9 @@ enum class TowerType : std::uint8_t{
 
     Leach,
     Turret,
-    Necromancer
+    Necromancer,
+
+    TowerCount
 };
 
 enum class TowerSize : bool{
@@ -64,8 +66,8 @@ public:
 
     // operator to sort maps
     friend bool operator<(const TowerLevel& level, const TowerLevel& other){
-        return level.getLevel() * (std::uint8_t)level.getPath() <
-            other.getLevel() * (std::uint8_t)other.getPath();
+        return level.getLevel() * static_cast<std::uint8_t>(level.getPath()) <
+            other.getLevel() * static_cast<std::uint8_t>(other.getPath());
     }
 };
 

include/game/client/Client.h

@@ -18,10 +18,14 @@ private:
     ClientGame m_Game;
     bool m_Connected;
 public:
-    Client(render::Renderer* renderer) : m_Renderer(renderer), m_Game(m_Connexion.GetDispatcher(), m_Renderer), m_Connected(false){}
+    Client(render::Renderer* renderer) : m_Renderer(renderer), m_Game(this), m_Connected(false){}
 
     const ClientGame& getGame() const{ return m_Game; }
     const ClientConnexion& getConnexion() const{ return m_Connexion; }
+    render::Renderer* getRenderer() const {return m_Renderer;}
+
+    ClientGame& getGame(){ return m_Game; }
+    ClientConnexion& getConnexion(){ return m_Connexion; }
 
     void tick(std::uint64_t delta);
 

include/game/client/ClientGame.h

@@ -12,8 +12,11 @@
 namespace td {
 namespace client {
 
+class Client;
+
 class ClientGame : public protocol::PacketHandler, public game::Game{
 private:
+    Client* m_Client;
     std::uint8_t m_ConnexionID;
     std::uint32_t m_LobbyTime = 0;
     game::Player* m_Player = nullptr;
@@ -21,7 +24,7 @@ private:
     client::WorldClient m_WorldClient;
     render::WorldRenderer m_WorldRenderer;
 public:
-    ClientGame(protocol::PacketDispatcher* dispatcher, render::Renderer* renderer);
+    ClientGame(Client* client);
     virtual ~ClientGame();
 
     virtual void tick(std::uint64_t delta);
@@ -31,6 +34,13 @@ public:
     std::uint32_t getLobbyTime() const{return m_LobbyTime;}
     const game::Player* getPlayer() const{return m_Player;}
 
+    render::Renderer* getRenderer() const {return m_Renderer;}
+
+    void PlaceTower(game::TowerType type, const glm::vec2& position);
+
+    bool CanPlaceLittleTower(const glm::vec2& worldPos);
+    bool CanPlaceBigTower(const glm::vec2& worldPos);
+
     virtual void HandlePacket(protocol::ConnexionInfoPacket* packet);
     virtual void HandlePacket(protocol::PlayerJoinPacket* packet);
     virtual void HandlePacket(protocol::PlayerLeavePacket* packet);

include/game/client/TowersInfo.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include "game/Towers.h"
+#include <string>
+
+namespace td {
+namespace game {
+
+class TowerInfo {
+private:
+    std::string m_Name, m_Description;
+    bool m_IsBigTower;
+public:
+    TowerInfo(std::string&& name, std::string&& description, bool big) : m_Name(std::move(name)),
+        m_Description(std::move(description)), m_IsBigTower(big) {}
+
+    const std::string& getName() const { return m_Name; }
+    const std::string& getDescription() const { return m_Description; }
+
+    bool isBigTower() const { return m_IsBigTower; }
+};
+
+const TowerInfo& getTowerInfo(TowerType type);
+
+} // namespace game
+} // namespace td

include/game/client/WorldClient.h

@@ -16,6 +16,7 @@ public:
 
     virtual void HandlePacket(protocol::WorldBeginDataPacket* packet);
     virtual void HandlePacket(protocol::WorldDataPacket* packet);
+    virtual void HandlePacket(protocol::WorldAddTowerPacket* packet);
     virtual void HandlePacket(protocol::SpawnMobPacket* packet);
 };
 

include/game/server/ServerConnexion.h

@@ -37,6 +37,7 @@ public:
     virtual void HandlePacket(protocol::KeepAlivePacket* packet);
     virtual void HandlePacket(protocol::SelectTeamPacket* packet);
     virtual void HandlePacket(protocol::DisconnectPacket* packet);
+    virtual void HandlePacket(protocol::PlaceTowerPacket* packet);
 
     std::uint8_t getID() const{return m_ID;}
     const game::Player* getPlayer() const{return m_Player;}

include/protocol/PacketHandler.h

@@ -33,6 +33,8 @@ public:
     virtual void HandlePacket(DisconnectPacket* packet){}
     virtual void HandlePacket(ServerTpsPacket* packet){}
     virtual void HandlePacket(SpawnMobPacket* packet){}
+    virtual void HandlePacket(PlaceTowerPacket* packet){}
+    virtual void HandlePacket(WorldAddTowerPacket* packet){}
 };
 
 } // namespace protocol

include/protocol/Protocol.h

@@ -28,6 +28,8 @@ enum class PacketType : std::uint8_t{
     UpdatePlayerTeam,
     ServerTps,
     SpawnMob,
+    PlaceTower,
+    WorldAddTower
 };
 
 class Packet{
@@ -380,5 +382,49 @@ public:
     virtual PacketType getType() const{ return PacketType::SpawnMob; }
 };
 
+class PlaceTowerPacket : public Packet{
+private:
+    std::int32_t m_TowerX, m_TowerY;
+    game::TowerType m_TowerType;
+public:
+    PlaceTowerPacket(){}
+    PlaceTowerPacket(std::int32_t x, std::int32_t y, game::TowerType type) :
+        m_TowerX(x), m_TowerY(y), m_TowerType(type){}
+    virtual ~PlaceTowerPacket(){}
+
+    virtual DataBuffer Serialize() const;
+    virtual void Deserialize(DataBuffer& data);
+    virtual void Dispatch(PacketHandler* handler);
+
+    std::int32_t getTowerX() const { return m_TowerX; }
+    std::int32_t getTowerY() const { return m_TowerY; }
+    game::TowerType getTowerType() const { return m_TowerType; }
+
+    virtual PacketType getType() const{ return PacketType::PlaceTower; }
+};
+
+class WorldAddTowerPacket : public Packet{
+private:
+    std::int32_t m_TowerX, m_TowerY;
+    game::TowerType m_TowerType;
+    game::PlayerID m_Builder;
+public:
+    WorldAddTowerPacket(){}
+    WorldAddTowerPacket(std::int32_t x, std::int32_t y, game::TowerType type, game::PlayerID player) :
+        m_TowerX(x), m_TowerY(y), m_TowerType(type), m_Builder(player){}
+    virtual ~WorldAddTowerPacket(){}
+
+    virtual DataBuffer Serialize() const;
+    virtual void Deserialize(DataBuffer& data);
+    virtual void Dispatch(PacketHandler* handler);
+
+    std::int32_t getTowerX() const { return m_TowerX; }
+    std::int32_t getTowerY() const { return m_TowerY; }
+    game::TowerType getTowerType() const { return m_TowerType; }
+    game::PlayerID getBuilder() const {return m_Builder;}
+
+    virtual PacketType getType() const{ return PacketType::WorldAddTower; }
+};
+
 }
 }

include/render/WorldRenderer.h

@@ -7,36 +7,51 @@
 #include <glm/glm.hpp>
 
 namespace td {
+
+namespace client{
+
+class ClientGame;
+    
+} // namespace client
+
+
 namespace render {
 
 class WorldRenderer{
 private:
+    client::ClientGame* m_Client;
     Renderer* m_Renderer;
     game::World* m_World;
-    std::unique_ptr<GL::VAO> m_WorldVao, m_MobVao, m_SelectTileVao;
+    std::unique_ptr<GL::VertexArray> m_WorldVao, m_MobVao, m_SelectTileVao;
     glm::vec2 m_CamPos;
     glm::vec2 m_CursorPos;
+    glm::vec2 m_HoldCursorPos;
     float m_Zoom = 1;
     float m_CamSensibility = 1;
+    bool m_TowerPlacePopupOpened = false;
 public:
-    WorldRenderer(game::World* world, Renderer* renderer);
+    WorldRenderer(game::World* world, client::ClientGame* client);
     ~WorldRenderer();
 
     void loadModels();
 
     void update();
-    void render() const;
+    void render();
 
     void setCamPos(float camX, float camY);
 
     void moveCam(float relativeX, float relativeY, float aspectRatio);
     void changeZoom(float zoom);
-    void click(int mouseX, int mouseY);
 private:
+    void click();
     void renderWorld() const;
     void renderTowers() const;
     void renderMobs() const;
     void renderTileSelect() const;
+    void renderPopups() const;
+    void detectClick();
+    glm::vec2 getCursorWorldPos() const;
+    glm::vec2 getClickWorldPos() const;
 
     void updateCursorPos();
 };

src/game/client/ClientGame.cpp

@@ -1,14 +1,16 @@
 #include "game/client/ClientGame.h"
 #include "protocol/PacketDispatcher.h"
 //#include "game/Team.h"
+#include "game/client/Client.h"
 
 #include <iostream>
 
 namespace td {
 namespace client {
 
-ClientGame::ClientGame(protocol::PacketDispatcher* dispatcher, render::Renderer* renderer): protocol::PacketHandler(dispatcher), 
-    game::Game(&m_WorldClient), m_Renderer(renderer), m_WorldClient(this), m_WorldRenderer(&m_WorldClient, m_Renderer){
+ClientGame::ClientGame(Client* client): protocol::PacketHandler(client->getConnexion().GetDispatcher()), 
+    game::Game(&m_WorldClient), m_Client(client), m_Renderer(client->getRenderer()), m_WorldClient(this), 
+        m_WorldRenderer(&m_WorldClient, this){
     GetDispatcher()->RegisterHandler(protocol::PacketType::ConnectionInfo, this);
     GetDispatcher()->RegisterHandler(protocol::PacketType::PlayerJoin, this);
     GetDispatcher()->RegisterHandler(protocol::PacketType::PlayerList, this);
@@ -111,5 +113,54 @@ void ClientGame::renderWorld(){
     }
 }
 
+void ClientGame::PlaceTower(game::TowerType type, const glm::vec2& position){
+    protocol::PlaceTowerPacket packet(position.x, position.y, type);
+    m_Client->getConnexion().sendPacket(&packet);
+}
+
+bool ClientGame::CanPlaceLittleTower(const glm::vec2& worldPos){
+    game::TilePtr tile = m_WorldClient.getTile(worldPos.x, worldPos.y);
+
+    if(tile == nullptr){
+        return false;
+    }
+
+    if(tile->getType() == game::TileType::Tower){
+        for(int x = -1; x < 2; x++){
+            for(int y = -1; y < 2; y++){
+                game::TilePtr adjacentTile = m_WorldClient.getTile(worldPos.x + x, worldPos.y + y);
+                if(adjacentTile == nullptr || adjacentTile->getType() != game::TileType::Tower){
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    return false;
+}
+
+bool ClientGame::CanPlaceBigTower(const glm::vec2& worldPos){
+    game::TilePtr tile = m_WorldClient.getTile(worldPos.x, worldPos.y);
+
+    if(tile == nullptr){
+        return false;
+    }
+
+    if(tile->getType() == game::TileType::Tower){
+        for(int x = -2; x < 3; x++){
+            for(int y = -2; y < 3; y++){
+                game::TilePtr adjacentTile = m_WorldClient.getTile(worldPos.x + x, worldPos.y + y);
+                if(adjacentTile == nullptr || adjacentTile->getType() != game::TileType::Tower){
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    return false;
+}
+
 } // namespace client
 } // namespace td

src/game/client/TowersInfo.cpp

@@ -0,0 +1,27 @@
+#include "game/client/TowersInfo.h"
+
+#include <map>
+
+namespace td {
+namespace game {
+
+static const std::map<TowerType, TowerInfo> TowerInfoConstants = {
+    {TowerType::Archer, {"Archer", "Shoot projectiles", false}},
+    {TowerType::Artillery, {"Artillery", "Explosion", false}},
+    {TowerType::Ice, {"Ice", "Slow down enemies", false}},
+    {TowerType::Leach, {"Leach", "Shoot projectiles", true}},
+    {TowerType::Mage, {"Mage", "Set enemies on fire", false}},
+    {TowerType::Necromancer, {"Necromancer", "Summon troops", true}},
+    {TowerType::Poison, {"Poison", "Poison enemies", false}},
+    {TowerType::Quake, {"Quake", "Shoot projectiles", false}},
+    {TowerType::Sorcerer, {"Sorcerer", "Summon friendly troops", false}},
+    {TowerType::Turret, {"Turret", "Shoot arrow very fast", true}},
+    {TowerType::Zeus, {"Zeus", "Strike lightning", false}},
+};
+
+const TowerInfo& getTowerInfo(TowerType type){
+    return TowerInfoConstants.at(type);
+}
+
+} // namespace game
+} // namespace td

src/game/client/WorldClient.cpp

@@ -9,6 +9,7 @@ namespace client{
 WorldClient::WorldClient(ClientGame* game) : game::World(game), protocol::PacketHandler(game->GetDispatcher()), m_Game(game){
     GetDispatcher()->RegisterHandler(protocol::PacketType::WorldBeginData, this);
     GetDispatcher()->RegisterHandler(protocol::PacketType::WorldData, this);
+    GetDispatcher()->RegisterHandler(protocol::PacketType::WorldAddTower, this);
     GetDispatcher()->RegisterHandler(protocol::PacketType::SpawnMob, this);
 }
 
@@ -20,6 +21,10 @@ void WorldClient::HandlePacket(protocol::WorldDataPacket* packet){
     loadMap(packet);
 }
 
+void WorldClient::HandlePacket(protocol::WorldAddTowerPacket* packet){
+    
+}
+
 void WorldClient::HandlePacket(protocol::SpawnMobPacket* packet){
     spawnMobAt(packet->getMobID(), packet->getMobType(), packet->getMobLevel(), packet->getSender(), 
         packet->getMobX(), packet->getMobY(), packet->getMobDirection());

src/game/server/ServerConnexion.cpp

@@ -38,6 +38,7 @@ void ServerConnexion::registerHandlers(){
     GetDispatcher()->RegisterHandler(protocol::PacketType::KeepAlive, this);
     GetDispatcher()->RegisterHandler(protocol::PacketType::SelectTeam, this);
     GetDispatcher()->RegisterHandler(protocol::PacketType::Disconnect, this);
+    GetDispatcher()->RegisterHandler(protocol::PacketType::PlaceTower, this);
 }
 
 bool ServerConnexion::updateSocket(){
@@ -143,6 +144,11 @@ void ServerConnexion::initConnection(){
     }
 }
 
+void ServerConnexion::HandlePacket(protocol::PlaceTowerPacket* packet){
+    // process packet
+    protocol::WorldAddTowerPacket addTowerPacket(packet->getTowerX(), packet->getTowerY(), packet->getTowerType(), m_ID);
+    m_Server->broadcastPacket(&addTowerPacket);
+}
 
 ServerConnexion::~ServerConnexion(){
     if (GetDispatcher() != nullptr)

src/protocol/PacketFactory.cpp

@@ -26,6 +26,8 @@ static std::map<PacketType, PacketCreator> packets = {
     {PacketType::Disconnect,        []() -> Packet* {return new DisconnectPacket(); } },
     {PacketType::ServerTps,         []() -> Packet* {return new ServerTpsPacket(); } },
     {PacketType::SpawnMob,          []() -> Packet* {return new SpawnMobPacket(); } },
+    {PacketType::PlaceTower,        []() -> Packet* {return new PlaceTowerPacket(); } },
+    {PacketType::WorldAddTower,     []() -> Packet* {return new WorldAddTowerPacket(); } },
 };
 
 Packet* createPacket(PacketType type, DataBuffer& buffer){

src/protocol/Protocol.cpp

@@ -391,6 +391,26 @@ void SpawnMobPacket::Deserialize(DataBuffer& data){
         >> m_Sender >> m_MobX >> m_MobY;
 }
 
+DataBuffer PlaceTowerPacket::Serialize() const{
+    DataBuffer data;
+    data << getID() << m_TowerX << m_TowerY << m_TowerType;
+    return data;
+}
+
+void PlaceTowerPacket::Deserialize(DataBuffer& data){
+    data >> m_TowerX >> m_TowerY >> m_TowerType;
+}
+
+DataBuffer WorldAddTowerPacket::Serialize() const{
+    DataBuffer data;
+    data << getID() << m_TowerX << m_TowerY << m_TowerType << m_Builder;
+    return data;
+}
+
+void WorldAddTowerPacket::Deserialize(DataBuffer& data){
+    data >> m_TowerX >> m_TowerY >> m_TowerType >> m_Builder;
+}
+
 REGISTER_DISPATCH_CLASS(PlayerLoginPacket);
 REGISTER_DISPATCH_CLASS(WorldBeginDataPacket);
 REGISTER_DISPATCH_CLASS(WorldDataPacket);
@@ -408,6 +428,8 @@ REGISTER_DISPATCH_CLASS(UpdatePlayerTeamPacket);
 REGISTER_DISPATCH_CLASS(DisconnectPacket);
 REGISTER_DISPATCH_CLASS(ServerTpsPacket);
 REGISTER_DISPATCH_CLASS(SpawnMobPacket);
+REGISTER_DISPATCH_CLASS(PlaceTowerPacket);
+REGISTER_DISPATCH_CLASS(WorldAddTowerPacket);
 
 } // namespace protocol
 } // namespace td

src/render/WorldRenderer.cpp

@@ -3,13 +3,15 @@
 #include "render/Renderer.h"
 #include "../render/gui/imgui/imgui.h"
 #include "window/Display.h"
+#include "game/client/TowersInfo.h"
+#include "game/client/ClientGame.h"
 
 #include <iostream>
 
 namespace td {
 namespace render {
 
-void WorldRenderer::loadModels(){
+void WorldRenderer::loadModels() {
     std::cout << "World Created !\n";
     m_WorldVao = std::make_unique<GL::VertexArray>(std::move(WorldLoader::loadWorldModel(m_World)));
     m_MobVao = std::make_unique<GL::VertexArray>(std::move(WorldLoader::loadMobModel()));
@@ -17,103 +19,147 @@ void WorldRenderer::loadModels(){
     std::cout << "Vertex Count : " << m_WorldVao->getVertexCount() << std::endl;
 }
 
-WorldRenderer::WorldRenderer(game::World* world, Renderer* renderer) : m_Renderer(renderer), m_World(world) {
+WorldRenderer::WorldRenderer(game::World* world, client::ClientGame* client) : m_Client(client), m_Renderer(m_Client->getRenderer()), m_World(world) {
 }
 
-void WorldRenderer::updateCursorPos(){
-    ImGuiIO& io = ImGui::GetIO();
-
-    float mouseX = io.MousePos.x;
-    float mouseY = io.MousePos.y;
-
-    m_CursorPos = m_Renderer->getCursorWorldPos({mouseX, mouseY}, Display::getAspectRatio(), m_Zoom, Display::getWindowWidth(), Display::getWindowHeight());
+void WorldRenderer::updateCursorPos() {
+    m_CursorPos = getCursorWorldPos();
 }
 
-void WorldRenderer::update(){
-    if(m_WorldVao == nullptr)
+void WorldRenderer::update() {
+    if (m_WorldVao == nullptr)
         return;
     ImGuiIO& io = ImGui::GetIO();
-    if(io.MouseDown[0] && !ImGui::IsAnyItemActive()){
+    if (io.MouseDown[0] && !ImGui::IsAnyItemActive()) {
         ImVec2 mouseDelta = ImGui::GetIO().MouseDelta;
-        const float relativeX = mouseDelta.x / (float) Display::getWindowWidth() * 2;
-		const float relativeY = mouseDelta.y / (float) Display::getWindowHeight() * 2;
+        const float relativeX = mouseDelta.x / (float)Display::getWindowWidth() * 2;
+        const float relativeY = mouseDelta.y / (float)Display::getWindowHeight() * 2;
         moveCam(relativeX, relativeY, Display::getAspectRatio());
     }
-    if(io.MouseWheel != 0){
+    if (io.MouseWheel != 0) {
         changeZoom(io.MouseWheel);
     }
     updateCursorPos();
+    if (ImGui::IsMouseClicked(0)) {
+        if (!m_TowerPlacePopupOpened) {
+            m_HoldCursorPos = { io.MousePos.x, io.MousePos.y };
+        } else {
+            m_TowerPlacePopupOpened = false;
+        }
+    }
 }
 
-void WorldRenderer::renderWorld() const{
+void WorldRenderer::renderWorld() const {
     m_Renderer->renderVAO(*m_WorldVao);
 }
 
-void WorldRenderer::renderMobs() const{
-    for(game::MobPtr mob : m_World->getMobList()){
+void WorldRenderer::renderMobs() const {
+    for (game::MobPtr mob : m_World->getMobList()) {
         Renderer::Model model;
         model.vao = m_MobVao.get();
-        model.positon = {mob->getX(), mob->getY()};
+        model.positon = { mob->getX(), mob->getY() };
         m_Renderer->renderModel(model);
     }
 }
 
-void WorldRenderer::renderTowers() const{
+void WorldRenderer::renderTowers() const {
     Renderer::Model tileSelectModel;
     tileSelectModel.vao = m_SelectTileVao.get();
-    tileSelectModel.positon = {(int) m_CursorPos.x, (int) m_CursorPos.y};
-    
+    tileSelectModel.positon = { (int)m_CursorPos.x, (int)m_CursorPos.y };
+
     m_Renderer->renderModel(tileSelectModel);
 }
 
-void WorldRenderer::renderTileSelect() const{
+void WorldRenderer::renderTileSelect() const {
 
 }
 
-void WorldRenderer::render() const{
-    if(m_WorldVao == nullptr)
+void WorldRenderer::render() {
+    if (m_WorldVao == nullptr)
         return;
     renderWorld();
     renderMobs();
     renderTowers();
     renderTileSelect();
+    detectClick();
+    renderPopups();
 }
 
-WorldRenderer::~WorldRenderer(){
-    
+WorldRenderer::~WorldRenderer() {
+
 }
 
-void WorldRenderer::moveCam(float relativeX, float relativeY, float aspectRatio){
-    if(m_WorldVao == nullptr)
+void WorldRenderer::moveCam(float relativeX, float relativeY, float aspectRatio) {
+    if (m_WorldVao == nullptr)
         return;
     float movementX = -relativeX / m_Zoom * aspectRatio;
     float movementY = relativeY / m_Zoom;
-    m_Renderer->setCamMovement({movementX, movementY});
+    m_Renderer->setCamMovement({ movementX, movementY });
 }
 
-void WorldRenderer::changeZoom(float zoomStep){
-    if(m_WorldVao == nullptr)
+void WorldRenderer::changeZoom(float zoomStep) {
+    if (m_WorldVao == nullptr)
         return;
     static float sensibility = 1.5f;
-    if (zoomStep < 0){
+    if (zoomStep < 0) {
         m_Zoom /= -zoomStep * sensibility;
-    }
-    else{
+    }     else {
         m_Zoom *= zoomStep * sensibility;
     }
     m_Renderer->setZoom(m_Zoom);
     m_Renderer->setCamMovement({});
 }
 
-void WorldRenderer::click(int mouseX, int mouseY){
-    if(m_WorldVao == nullptr)
-        return;
+void WorldRenderer::click() {
+    if (m_Client->CanPlaceLittleTower(getClickWorldPos())) {
+        ImGui::OpenPopup("TowerPlace");
+        m_TowerPlacePopupOpened = true;
+    }
 }
 
-void WorldRenderer::setCamPos(float camX, float camY){
-    m_CamPos = {camX, camY};
+void WorldRenderer::setCamPos(float camX, float camY) {
+    m_CamPos = { camX, camY };
     m_Renderer->setCamPos(m_CamPos);
 }
 
+void WorldRenderer::renderPopups() const {
+    if (ImGui::BeginPopup("TowerPlace")) {
+        for (int i = 0; i < (int)game::TowerType::TowerCount; i++) {
+            game::TowerType towerType = game::TowerType(i);
+            const game::TowerInfo& towerInfo = game::getTowerInfo(towerType);
+            if (!towerInfo.isBigTower() || (towerInfo.isBigTower() && m_Client->CanPlaceBigTower(getClickWorldPos()))) {
+                if (ImGui::Button(game::getTowerInfo(towerType).getName().c_str())) {
+                    m_Client->PlaceTower(towerType, getClickWorldPos());
+                    ImGui::CloseCurrentPopup();
+                    break;
+                }
+                if (ImGui::IsItemHovered()) {
+                    ImGui::SetTooltip(game::getTowerInfo(towerType).getDescription().c_str());
+                }
+            }
+        }
+        ImGui::EndPopup();
+    }
+}
+
+void WorldRenderer::detectClick() {
+    ImGuiIO& io = ImGui::GetIO();
+    if (ImGui::IsMouseReleased(0) && !ImGui::IsAnyItemHovered() && !ImGui::IsAnyItemFocused()) {
+        glm::vec2 cursorPos = { io.MousePos.x, io.MousePos.y };
+        if (cursorPos == m_HoldCursorPos) {
+            click();
+        }
+    }
+}
+
+glm::vec2 WorldRenderer::getCursorWorldPos() const {
+    ImGuiIO& io = ImGui::GetIO();
+    return m_Renderer->getCursorWorldPos({ io.MousePos.x, io.MousePos.y }, Display::getAspectRatio(), m_Zoom, Display::getWindowWidth(), Display::getWindowHeight());
+}
+
+glm::vec2 WorldRenderer::getClickWorldPos() const{
+    return m_Renderer->getCursorWorldPos(m_HoldCursorPos, Display::getAspectRatio(), m_Zoom, Display::getWindowWidth(), Display::getWindowHeight());
+}
+
 } // namespace render
 } // namespace td

src/render/gui/TowerGui.cpp

@@ -305,8 +305,8 @@ void tick(){
 
 void render(){
     tick();
-    client->render();
     beginFrame();
+    client->render();
     if (client->isConnected())
         renderGame();
     else