feat: add upgrade popup prototype

src/render/WorldRenderer.cpp

@@ -2,6 +2,7 @@
 #include "render/loader/WorldLoader.h"
 #include "render/Renderer.h"
 #include "render/gui/imgui/imgui.h"
+#include "gui/imgui/imgui_internal.h"
 #include "window/Display.h"
 #include "game/client/ClientGame.h"
 
@@ -88,7 +89,7 @@ void WorldRenderer::renderTileSelect() const {
     m_Renderer->renderModel(tileSelectModel);
 }
 
-void WorldRenderer::renderPopups() const {
+void WorldRenderer::renderPopups() {
     renderTowerPlacePopup();
     renderTowerUpgradePopup();
 }
@@ -100,9 +101,9 @@ void WorldRenderer::render() {
     renderMobs();
     renderTowers();
     renderTileSelect();
-    detectClick();
     renderMobTooltip();
     renderPopups();
+    detectClick();
 }
 
 WorldRenderer::~WorldRenderer() {
@@ -132,12 +133,10 @@ void WorldRenderer::changeZoom(float zoomStep) {
 
 void WorldRenderer::click() {
     const game::TowerPtr tower = m_Client->getWorld().getTower(getClickWorldPos());
-    if(tower != nullptr){ // there is a tower here
+    if (tower != nullptr) { // there is a tower here
         ImGui::OpenPopup("TowerUpgrade");
-        m_PopupOpened = true;
-    }else if (m_Client->getWorld().CanPlaceLittleTower(getClickWorldPos(), m_Client->getPlayer()->getID())) {
+    } else if (m_Client->getWorld().CanPlaceLittleTower(getClickWorldPos(), m_Client->getPlayer()->getID())) {
         ImGui::OpenPopup("TowerPlace");
-        m_PopupOpened = true;
     }
 }
 
@@ -146,8 +145,9 @@ void WorldRenderer::setCamPos(float camX, float camY) {
     m_Renderer->setCamPos(m_CamPos);
 }
 
-void WorldRenderer::renderTowerPlacePopup() const {
+void WorldRenderer::renderTowerPlacePopup() {
     if (ImGui::BeginPopup("TowerPlace")) {
+        m_PopupOpened = true;
         for (int i = 0; i < (int)game::TowerType::TowerCount; i++) {
             game::TowerType towerType = game::TowerType(i);
             const game::TowerInfo& towerInfo = game::getTowerInfo(towerType);
@@ -164,16 +164,45 @@ void WorldRenderer::renderTowerPlacePopup() const {
         }
         ImGui::EndPopup();
     }
+    m_PopupOpened = false;
 }
 
-void WorldRenderer::renderTowerUpgradePopup() const {
+void WorldRenderer::renderTowerUpgradePopup() {
     if (ImGui::BeginPopup("TowerUpgrade")) {
+        m_PopupOpened = true;
         game::TowerPtr tower = m_Client->getWorld().getTower(getClickWorldPos());
-        if(tower == nullptr){
+        if (tower == nullptr) {
             ImGui::EndPopup();
             return;
         }
         ImGui::Text("Tower : %s", game::TowerFactory::getTowerName(tower->getType()).c_str());
+
+        for (int y = 0; y < 3; y++) { // path: 0 -> top  1 -> middle  2 -> bottom
+            for (int x = 0; x < 4; x++) { // level: 1, 2, 3, 4
+
+                if (x > 0)
+                    ImGui::SameLine();
+
+                const game::TowerStats* towerStats = game::getTowerStats(tower->getType(), { x + 1, game::TowerPath(y) });
+
+                bool disabled = towerStats == nullptr;
+
+                ImGui::PushID(x * 4 + y);
+                if (disabled) {
+                    ImGui::BeginDisabled();
+                    ImGui::PushStyleColor(ImGuiCol_Button, ImGui::GetStyleColorVec4(ImGuiCol_PopupBg));
+                    ImGui::Button("", ImVec2(100, 100));
+                    ImGui::PopStyleColor();
+                    ImGui::EndDisabled();
+                } else {
+                    if (ImGui::Button("Upgrade", ImVec2(100, 100))) {
+                        std::cout << "Clicked !\n";
+                    }
+                }
+                ImGui::PopID();
+            }
+        }
+
         ImGui::EndPopup();
     }
 }
@@ -183,6 +212,7 @@ void WorldRenderer::detectClick() {
     if (ImGui::IsMouseReleased(0) && !ImGui::IsAnyItemHovered() && !ImGui::IsAnyItemFocused()) {
         glm::vec2 cursorPos = { io.MousePos.x, io.MousePos.y };
         if (cursorPos == m_HoldCursorPos) {
+            m_LastClicked = m_HoldCursorPos;
             click();
         }
     }
@@ -239,7 +269,7 @@ glm::vec2 WorldRenderer::getCursorWorldPos() const {
 }
 
 glm::vec2 WorldRenderer::getClickWorldPos() const {
-    return m_Renderer->getCursorWorldPos(m_HoldCursorPos, Display::getAspectRatio(), m_Zoom, Display::getWindowWidth(), Display::getWindowHeight());
+    return m_Renderer->getCursorWorldPos(m_LastClicked, Display::getAspectRatio(), m_Zoom, Display::getWindowWidth(), Display::getWindowHeight());
 }
 
 } // namespace render