Add CommandManager::ShowWhichKey and include src in build

src/app/editor/editor.cmake

@@ -16,5 +16,6 @@ set(
   app/editor/utils/gfx_context.cc
   app/editor/overworld/entity.cc
   app/editor/system/settings_editor.cc
+  app/editor/system/command_manager.cc
   app/editor/system/extension_manager.cc
-)
+)

src/app/editor/editor_manager.cc

@@ -242,6 +242,8 @@ void EditorManager::ManageActiveEditors() {
 void EditorManager::ManageKeyboardShortcuts() {
   bool ctrl_or_super = (GetIO().KeyCtrl || GetIO().KeySuper);
 
+  command_manager_.ShowWhichKey();
+
   // If CMD + R is pressed, reload the top result of recent files
   if (IsKeyDown(ImGuiKey_R) && ctrl_or_super) {
     static RecentFilesManager manager("recent_files.txt");

src/app/editor/editor_manager.h

@@ -17,6 +17,7 @@
 #include "app/editor/overworld/overworld_editor.h"
 #include "app/editor/sprite/sprite_editor.h"
 #include "app/editor/system/constant_manager.h"
+#include "app/editor/system/command_manager.h"
 #include "app/editor/system/extension_manager.h"
 #include "app/editor/system/settings_editor.h"
 #include "app/emu/emulator.h"
@@ -99,6 +100,7 @@ class EditorManager : public SharedRom, public core::ExperimentFlags {
   emu::Emulator emulator_;
 
   Project current_project_;
+  CommandManager command_manager_;
   ConstantManager constant_manager_;
   ExtensionManager extension_manager_;
   yaze_editor_context editor_context_;

src/app/editor/system/command_manager.cc

@@ -0,0 +1,27 @@
+#include "command_manager.h"
+
+#include "imgui/imgui.h"
+
+namespace yaze {
+namespace app {
+namespace editor {
+
+// When the player presses Space, a popup will appear fixed to the bottom of the
+// ImGui window with a list of the available key commands which can be used.
+void CommandManager::ShowWhichKey() {
+  if (ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_Space))) {
+    ImGui::OpenPopup("WhichKey");
+  }
+
+  if (ImGui::BeginPopup("WhichKey")) {
+    for (const auto& [shortcut, command] : commands_) {
+      ImGui::Text("%s: %s", shortcut.c_str(),
+                  command->GetDescription().c_str());
+    }
+    ImGui::EndPopup();
+  }
+}
+
+}  // namespace editor
+}  // namespace app
+}  // namespace yaze

src/app/editor/system/command_manager.h

@@ -1,6 +1,7 @@
 #ifndef YAZE_APP_EDITOR_SYSTEM_COMMAND_MANAGER_H
 #define YAZE_APP_EDITOR_SYSTEM_COMMAND_MANAGER_H
 
+#include <stack>
 #include <string>
 #include <unordered_map>
 
@@ -16,6 +17,8 @@ class Command {
 
 class CommandManager {
  public:
+  void ShowWhichKey();
+
   void RegisterCommand(const std::string& shortcut, Command* command) {
     commands_[shortcut] = command;
   }
@@ -50,4 +53,6 @@ class CommandManager {
 
 }  // namespace editor
 }  // namespace app
-}  // namespace yaze
+}  // namespace yaze
+
+#endif  // YAZE_APP_EDITOR_SYSTEM_COMMAND_MANAGER_H