Added Microbe saving/loading in editor.

Uses existing serialization to read/write foo.microbe files in creations/microbe.
Uses new version file to record save versions, in case of backwards-compatibility issues.

.gitignore

@@ -85,5 +85,9 @@ nbproject/
 # Vim swap files
 *.swp
 
+
+# Version file
+
+!thriveversion.ver
 # Temporary/backup files
 *~

CMakeLists.txt

@@ -317,6 +317,13 @@ install(EXPORT lua
     DESTINATION bin
 )
 
+# Version file
+
+install(FILES
+    ${CMAKE_SOURCE_DIR}/thriveversion.ver
+    DESTINATION bin
+)
+
 # OGRE config and media
 
 install(FILES

scripts/microbe_editor/microbe_editor.lua

@@ -138,6 +138,19 @@ function MicrobeEditor:addNucleus()
     self.currentMicrobe:addOrganelle(0, 0, nucleusOrganelle)
 end
 
+function MicrobeEditor:loadMicrobe(entityId)
+    self.organelleCount = 0
+    if self.currentMicrobe ~= nil then
+        self.currentMicrobe.entity:destroy()
+    end
+    self.currentMicrobe = Microbe(Entity(entityId))
+    self.currentMicrobe.entity:stealName("working_microbe")
+    self.currentMicrobe.sceneNode.transform.orientation = Quaternion(Radian(Degree(180)), Vector3(0, 0, 1))-- Orientation
+    self.currentMicrobe.sceneNode.transform:touch()
+    self.currentMicrobe.collisionHandler:addCollisionGroup("powerupable")
+    Engine:playerData():setActiveCreature(entityId)
+end
+
 function MicrobeEditor:createNewMicrobe()
     self.organelleCount = 0
     if self.currentMicrobe ~= nil then

scripts/microbe_editor/microbe_editor_hud.lua

@@ -7,6 +7,9 @@ function MicrobeEditorHudSystem:__init()
     self.initialized = false
     self.editor = MicrobeEditor(self)
     self.hoverHex = nil
+    self.saveLoadPanel = nil
+    self.creationsListbox = nil
+    self.creationFileMap = {} -- Map from player creation name to filepath
     self.activeButton = nil -- stores button, not name
 end
 
@@ -43,16 +46,23 @@ function MicrobeEditorHudSystem:init(gameState)
     --aminoSynthesizerButton:getChild("AminoSynthesizer"):registerEventHandler("Clicked", aminoSynthesizerClicked)
     removeButton:getChild("Remove"):registerEventHandler("Clicked", removeClicked)
 
-
+    self.saveLoadPanel = root:getChild("SaveLoadPanel")
+    self.creationsListbox = self.saveLoadPanel:getChild("SavedCreations")
+
     root:getChild("BottomSection"):getChild("MicrobeStageButton"):registerEventHandler("Clicked", playClicked)
     root:getChild("BottomSection"):getChild("MenuButton"):registerEventHandler("Clicked", menuButtonClicked)
-
     root:getChild("MenuPanel"):getChild("MainMenuButton"):registerEventHandler("Clicked", menuMainMenuClicked)
     root:getChild("MenuPanel"):getChild("PlayButton"):registerEventHandler("Clicked", menuPlayClicked)
     root:getChild("MenuPanel"):getChild("ReturnButton"):registerEventHandler("Clicked", returnButtonClicked)
     root:getChild("MenuPanel"):getChild("QuitButton"):registerEventHandler("Clicked", quitButtonClicked)
+    root:getChild("BottomSection"):getChild("SaveButton"):registerEventHandler("Clicked", rootSaveCreationClicked)
+    root:getChild("BottomSection"):getChild("LoadButton"):registerEventHandler("Clicked", rootLoadCreationClicked)
+    root:getChild("SaveLoadPanel"):getChild("ReturnButton"):registerEventHandler("Clicked", returnButtonClicked)
+    root:getChild("SaveLoadPanel"):getChild("SaveButton"):registerEventHandler("Clicked", saveCreationClicked)
+    root:getChild("SaveLoadPanel"):getChild("LoadButton"):registerEventHandler("Clicked", loadCreationClicked)
 end
 
+
 function MicrobeEditorHudSystem:activate()
     global_activeMicrobeEditorHudSystem = self -- Global reference for event handlers
     self.editor:activate()
@@ -62,8 +72,7 @@ function MicrobeEditorHudSystem:activate()
         else
             button:enable()
         end
-    end
-
+    end    
 end
 
 function MicrobeEditorHudSystem:setActiveAction(actionName)
@@ -77,7 +86,7 @@ end
 
 function MicrobeEditorHudSystem:update(milliseconds)
     self.editor:update(milliseconds)
-     -- Render the hex under the cursor
+    -- Render the hex under the cursor
     local x, y = axialToCartesian(self.editor:getMouseHex())
     local translation = Vector3(-x, -y, 0)
     local sceneNode = self.hoverHex:getComponent(OgreSceneNodeComponent.TYPE_ID)
@@ -195,6 +204,59 @@ function removeClicked()
     global_activeMicrobeEditorHudSystem:setActiveAction("remove")
 end
 
+function rootSaveCreationClicked()
+    panel = global_activeMicrobeEditorHudSystem.saveLoadPanel
+    panel:getChild("SaveButton"):show()
+    panel:getChild("NameTextbox"):show()
+    panel:getChild("CreationNameDialogLabel"):show()
+    panel:getChild("LoadButton"):hide()
+    panel:getChild("SavedCreations"):hide()
+    panel:show()
+end
+
+function rootLoadCreationClicked()
+    panel = global_activeMicrobeEditorHudSystem.saveLoadPanel
+    panel:getChild("SaveButton"):hide()
+    panel:getChild("NameTextbox"):hide()
+    panel:getChild("CreationNameDialogLabel"):hide()
+    panel:getChild("LoadButton"):show()
+    panel:getChild("SavedCreations"):show()
+    panel:show()
+    global_activeMicrobeEditorHudSystem.creationsListbox:itemListboxResetList()
+    global_activeMicrobeEditorHudSystem.creationFileMap = {}
+    i = 0
+    pathsString = Engine:getCreationFileList("microbe")
+    -- using pattern matching for splitting on spaces
+    for path in string.gmatch(pathsString, "%S+")  do 
+       item = CEGUIWindow("Thrive/ListboxItem", "creationItems"..i)
+       pathSep = package.config:sub(1,1) -- / for unix, \ for windows
+       text = string.sub(path, string.len(path) - string.find(path:reverse(), pathSep) + 2)
+       item:setText(text)
+       global_activeMicrobeEditorHudSystem.creationsListbox:itemListboxAddItem(item)
+       global_activeMicrobeEditorHudSystem.creationFileMap[text] = path
+       i = i + 1
+    end
+    global_activeMicrobeEditorHudSystem.creationsListbox:itemListboxHandleUpdatedItemData()
+end
+
+function saveCreationClicked()
+    name = panel:getChild("NameTextbox"):getText()
+    -- Todo: Additional input sanitation
+    if string.len(name) > 0 then
+        Engine:saveCreation(global_activeMicrobeEditorHudSystem.editor.currentMicrobe.entity.id, name, "microbe") 
+        panel:hide()
+    end
+end
+
+function loadCreationClicked()
+    item = global_activeMicrobeEditorHudSystem.creationsListbox:itemListboxGetLastSelectedItem()
+    if not item:isNull() then 
+        entity = Engine:loadCreation(global_activeMicrobeEditorHudSystem.creationFileMap[item:getText()])
+        global_activeMicrobeEditorHudSystem.editor:loadMicrobe(entity)
+        panel:hide()
+    end
+end
+
 function playClicked()
     Engine:setCurrentGameState(GameState.MICROBE)
 end

scripts/microbe_stage/microbe_stage_hud.lua

@@ -107,6 +107,8 @@ function returnButtonClicked()
     if Engine:currentGameState():name() == "microbe" then
         Engine:currentGameState():rootGUIWindow():getChild("HelpPanel"):hide()
         Engine:currentGameState():rootGUIWindow():getChild("MessagePanel"):hide()
+    elseif Engine:currentGameState():name() == "microbe_editor" then
+        Engine:currentGameState():rootGUIWindow():getChild("SaveLoadPanel"):hide()
     end
 end
 

src/engine/engine.cpp

@@ -33,11 +33,11 @@
 #include "ogre/text_overlay.h"
 
 // Scripting
+#include <luabind/iterator_policy.hpp>
 #include "scripting/luabind.h"
 #include "scripting/lua_state.h"
 #include "scripting/script_initializer.h"
 
-
 // Microbe
 #include "microbe_stage/compound.h"
 
@@ -241,6 +241,7 @@ struct Engine::Implementation : public Ogre::WindowEventListener {
         }
         savegame.set("gameStates", std::move(gameStates));
         savegame.set("playerData", m_playerData.storage());
+        savegame.set("thriveversion", m_thriveVersion);
         std::ofstream stream(
             m_serialization.saveFile,
             std::ofstream::trunc | std::ofstream::binary
@@ -361,6 +362,18 @@ struct Engine::Implementation : public Ogre::WindowEventListener {
         );
     }
 
+    void
+    loadVersionNumber() {
+        std::ifstream versionFile ("thriveversion.ver");
+        if (versionFile.is_open()) {
+            std::getline(versionFile, m_thriveVersion);
+        }
+        else {
+            m_thriveVersion = "unknown";
+        }
+        versionFile.close();
+    }
+
     void
     shutdownInputManager() {
         if (not m_input.inputManager) {
@@ -439,6 +452,8 @@ struct Engine::Implementation : public Ogre::WindowEventListener {
 
     GameState* m_nextGameState = nullptr;
 
+    std::string m_thriveVersion;
+
     struct Serialization {
 
         std::string loadFile;
@@ -493,9 +508,13 @@ Engine::luaBindings() {
         .def("playerData", &Engine::playerData)
         .def("load", &Engine::load)
         .def("save", &Engine::save)
+        .def("saveCreation", static_cast<void(Engine::*)(EntityId, std::string, std::string)const>(&Engine::saveCreation))
+        .def("loadCreation", static_cast<EntityId(Engine::*)(std::string)>(&Engine::loadCreation))
+        .def("getCreationFileList", &Engine::getCreationFileList)
         .def("quit", &Engine::quit)
         .def("timedSystemShutdown", &Engine::timedSystemShutdown)
         .def("isSystemTimedShutdown", &Engine::isSystemTimedShutdown)
+        .def("thriveVersion", &Engine::thriveVersion)
         .property("componentFactory", &Engine::componentFactory)
         .property("keyboard", &Engine::keyboard)
         .property("mouse", &Engine::mouse)
@@ -577,6 +596,7 @@ Engine::init() {
     m_impl->setupInputManager();
     m_impl->setupGUI();
     m_impl->loadScripts("../scripts");
+    m_impl->loadVersionNumber();
     GameState* previousGameState = m_impl->m_currentGameState;
     for (const auto& pair : m_impl->m_gameStates) {
         const auto& gameState = pair.second;
@@ -641,6 +661,94 @@ Engine::save(
     m_impl->m_serialization.saveFile = filename;
 }
 
+void
+Engine::saveCreation(
+    EntityId entityId,
+    std::string name,
+    std::string type
+) const {
+    saveCreation(entityId, this->currentGameState()->entityManager(), name, type);
+}
+
+void
+Engine::saveCreation(
+    EntityId entityId,
+    const EntityManager& entityManager,
+    std::string name,
+    std::string type
+) const {
+    namespace fs = boost::filesystem;
+    StorageContainer creation = entityManager.storeEntity(entityId);
+    creation.set("thriveversion", this->thriveVersion());
+    std::ofstream stream(
+        (fs::path("creations") / fs::path(type) / fs::path(name + "." + type)).string<std::string>(),
+        std::ofstream::trunc | std::ofstream::binary
+    );
+    stream.exceptions(std::ofstream::failbit | std::ofstream::badbit);
+    if (stream) {
+        try {
+            stream << creation;
+            stream.flush();
+            stream.close();
+        }
+        catch (const std::ofstream::failure& e) {
+            std::cerr << "Error saving file: " << e.what() << std::endl;
+            throw;
+        }
+    }
+    else {
+        std::perror("Could not open file for saving");
+    }
+}
+
+EntityId
+Engine::loadCreation(
+    std::string file
+) {
+    return loadCreation(file, this->currentGameState()->entityManager());
+}
+
+EntityId
+Engine::loadCreation(
+    std::string file,
+    EntityManager& entityManager
+) {
+    std::ifstream stream(
+        file,
+        std::ifstream::binary
+    );
+    stream.clear();
+    stream.exceptions(std::ofstream::failbit | std::ofstream::badbit);
+    StorageContainer creation;
+    try {
+        stream >> creation;
+    }
+    catch(const std::ofstream::failure& e) {
+        std::cerr << "Error loading file: " << e.what() << std::endl;
+        throw;
+    }
+    EntityId entityId = entityManager.loadEntity(creation, m_impl->m_componentFactory);
+    return entityId;
+}
+
+std::string
+Engine::getCreationFileList(
+    std::string stage
+) const {
+    namespace fs = boost::filesystem;
+    fs::path directory("./creations/" + stage);
+    fs::directory_iterator end_iter;
+    std::stringstream stringbuilder;
+    if ( fs::exists(directory) && fs::is_directory(directory)) {
+        for( fs::directory_iterator dir_iter(directory) ; dir_iter != end_iter ; ++dir_iter) {
+            if (fs::is_regular_file(dir_iter->status()) )
+            {
+                stringbuilder << dir_iter->path().string() << " ";
+            }
+        }
+    }
+    return stringbuilder.str();
+}
 
 void
 Engine::setCurrentGameState(
@@ -758,3 +866,9 @@ Engine::isSystemTimedShutdown(
 ) const {
     return m_impl->m_prevShutdownSystems->find(&system) !=  m_impl->m_prevShutdownSystems->end();
 }
+
+const std::string&
+Engine::thriveVersion() const {
+    return m_impl->m_thriveVersion;
+}
+