From 41b52e3532d4d746a0629a402064346ed4f92e57 Mon Sep 17 00:00:00 2001
From: Anthony Rabine <anthony@rabine.fr>
Date: Sat, 23 Dec 2023 14:33:05 +0100
Subject: [PATCH] better event, better audio, add QOI to emulator, emulator is
 executed

---
 software/chip32/chip32_vm.h                   |   1 +
 .../library/{miniaudio.c => audio_player.cpp} |  94 ++++--
 software/library/audio_player.h               |  47 +++
 .../src => software/library}/json.hpp         |   0
 .../src => software/library}/resource.h       |   0
 .../library}/resource_manager.h               |   0
 .../library}/story_project.cpp                |  43 +--
 .../src => software/library}/story_project.h  |  49 +--
 .../src => software/library}/thread_pool.hpp  |   0
 software/library/thread_safe_queue.h          |  52 +++
 {story-editor/src => software/library}/uuid.h |   0
 story-editor/CMakeLists.txt                   |  22 +-
 .../libs/ImGuiColorTextEdit/TextEditor.cpp    |  25 +-
 .../libs/ImGuiColorTextEdit/TextEditor.h      |  14 +-
 story-editor/src/base_node.cpp                |   4 +-
 story-editor/src/base_node.h                  |   6 +-
 story-editor/src/code_editor.cpp              |   4 +-
 story-editor/src/code_editor.h                |   5 +
 story-editor/src/emulator_window.cpp          |  48 ++-
 story-editor/src/emulator_window.h            |  11 +-
 story-editor/src/gui.cpp                      |  58 +++-
 .../{i_story_project.h => i_story_manager.h}  |  15 +-
 story-editor/src/main_window.cpp              | 302 ++++++++++++++++--
 story-editor/src/main_window.h                |  40 ++-
 story-editor/src/media_node.cpp               |  22 +-
 story-editor/src/media_node.h                 |   6 +-
 story-editor/src/node_editor_window.cpp       |   8 +-
 story-editor/src/node_editor_window.h         |  12 +-
 story-editor/src/resources_window.cpp         |  12 +-
 story-editor/src/resources_window.h           |   6 +-
 30 files changed, 690 insertions(+), 216 deletions(-)
 rename software/library/{miniaudio.c => audio_player.cpp} (58%)
 create mode 100644 software/library/audio_player.h
 rename {story-editor/src => software/library}/json.hpp (100%)
 rename {story-editor/src => software/library}/resource.h (100%)
 rename {story-editor/src => software/library}/resource_manager.h (100%)
 rename {story-editor/src => software/library}/story_project.cpp (91%)
 rename {story-editor/src => software/library}/story_project.h (80%)
 rename {story-editor/src => software/library}/thread_pool.hpp (100%)
 create mode 100644 software/library/thread_safe_queue.h
 rename {story-editor/src => software/library}/uuid.h (100%)
 rename story-editor/src/{i_story_project.h => i_story_manager.h} (79%)

diff --git a/software/chip32/chip32_vm.h b/software/chip32/chip32_vm.h
index ebd93eb..0dc9d65 100644
--- a/software/chip32/chip32_vm.h
+++ b/software/chip32/chip32_vm.h
@@ -130,6 +130,7 @@ typedef enum
 
 typedef enum
 {
+    VM_READY,                   // VM Ready to be started
     VM_FINISHED,                // execution completed (i.e. got halt instruction)
     VM_SKIPED,                  // skipped instruction
     VM_WAIT_EVENT,              // execution paused since we hit the maximum instructions
diff --git a/software/library/miniaudio.c b/software/library/audio_player.cpp
similarity index 58%
rename from software/library/miniaudio.c
rename to software/library/audio_player.cpp
index 5091335..e60112d 100644
--- a/software/library/miniaudio.c
+++ b/software/library/audio_player.cpp
@@ -13,10 +13,14 @@ the simple_mixing example for how best to do this.
 #define MINIAUDIO_IMPLEMENTATION
 #include "miniaudio.h"
 
+#include <functional>
 #include <stdio.h>
+#include "audio_player.h"
 
 
-ma_event g_stopEvent; /* <-- Signaled by the audio thread, waited on by the main thread. */
+static ThreadSafeQueue<AudioCommand> g_audioQueue;
+static ma_decoder decoder;
+static ma_device device;
 
 void data_callback(ma_device* pDevice, void* pOutput, const void* pInput, ma_uint32 frameCount)
 {
@@ -27,21 +31,24 @@ void data_callback(ma_device* pDevice, void* pOutput, const void* pInput, ma_uin
 
     ma_uint64 framesRead;
     ma_result result =  ma_decoder_read_pcm_frames(pDecoder, pOutput, frameCount, &framesRead);
-    
-    if (framesRead < frameCount) {
-        // Reached the end.
-        ma_event_signal(&g_stopEvent);
+
+
+    if (result == MA_AT_END) {
+        g_audioQueue.push({"end", ""});
     }
+    //    if (framesRead < frameCount) {
+    //        // Reached the end.
+    //        ma_event_signal(&g_stopEvent);
+    //    }
 
     (void)pInput;
 }
 
-int miniaudio_play(const char* filename)
+
+static int miniaudio_play(const char* filename)
 {
     ma_result result;
-    ma_decoder decoder;
     ma_device_config deviceConfig;
-    ma_device device;
 
     result = ma_decoder_init_file(filename, NULL, &decoder);
     if (result != MA_SUCCESS) {
@@ -61,8 +68,6 @@ int miniaudio_play(const char* filename)
         ma_decoder_uninit(&decoder);
         return -3;
     }
-    
-    ma_event_init(&g_stopEvent);
 
     if (ma_device_start(&device) != MA_SUCCESS) {
         printf("Failed to start playback device.\n");
@@ -71,14 +76,67 @@ int miniaudio_play(const char* filename)
         return -4;
     }
 
-    printf("Wait untile end...\n");
-   // getchar();
-    ma_event_wait(&g_stopEvent);
-    printf("End!\n");
-
-    ma_device_uninit(&device);
-    ma_decoder_uninit(&decoder);
-
     return 0;
 }
 
+AudioPlayer::AudioPlayer(IAudioEvent &event)
+    : m_event(event)
+{
+    m_audioThread = std::thread( std::bind(&AudioPlayer::AudioThread, this) );
+}
+
+void AudioPlayer::Play(const std::string &filename)
+{
+    g_audioQueue.push({"play", filename});
+}
+
+AudioPlayer::~AudioPlayer()
+{
+    // Quit audio thread
+    g_audioQueue.push({"quit", ""});
+    if (m_audioThread.joinable())
+    {
+        m_audioThread.join();
+    }
+}
+
+void AudioPlayer::CloseAudio()
+{
+    ma_device_uninit(&device);
+    ma_decoder_uninit(&decoder);
+}
+
+#define AUDIO_STATE_WAIT_PLAY  1
+#define AUDIO_STATE_WAIT_END  2
+
+void AudioPlayer::AudioThread()
+{
+    int state = AUDIO_STATE_WAIT_PLAY;
+    for (;;)
+    {
+        auto cmd = g_audioQueue.front();
+        g_audioQueue.pop();
+
+        if (cmd.order == "quit") {
+            return;
+        }
+        else if (cmd.order == "play")
+        {
+            if (state == AUDIO_STATE_WAIT_PLAY)
+            {
+                state = AUDIO_STATE_WAIT_END;
+                miniaudio_play(cmd.filename.c_str());
+            }
+        }
+        else if (cmd.order == "end")
+        {
+            if (state == AUDIO_STATE_WAIT_END)
+            {
+                state = AUDIO_STATE_WAIT_PLAY;
+                CloseAudio();
+                m_event.EndOfAudio();
+            }
+        }
+    }
+}
+
diff --git a/software/library/audio_player.h b/software/library/audio_player.h
new file mode 100644
index 0000000..72ec5a6
--- /dev/null
+++ b/software/library/audio_player.h
@@ -0,0 +1,47 @@
+#ifndef AUDIO_PLAYER_H
+#define AUDIO_PLAYER_H
+
+#include "miniaudio.h"
+#include <string>
+#include <thread>
+#include <mutex>
+#include <thread>
+#include <condition_variable>
+#include <queue>
+#include "thread_safe_queue.h"
+
+
+struct AudioCommand {
+    std::string order;
+    std::string filename;
+};
+
+class IAudioEvent
+{
+public:
+    virtual ~IAudioEvent() {}
+
+    virtual void EndOfAudio() = 0;
+};
+
+
+class AudioPlayer
+{
+public:
+
+    AudioPlayer(IAudioEvent &event);
+    ~AudioPlayer();
+
+    void Play(const std::string &filename);
+
+private:
+    IAudioEvent &m_event;
+
+    std::thread m_audioThread;
+
+    void AudioThread();
+    void CloseAudio();
+};
+
+
+#endif // AUDIO_PLAYER_H
diff --git a/story-editor/src/json.hpp b/software/library/json.hpp
similarity index 100%
rename from story-editor/src/json.hpp
rename to software/library/json.hpp
diff --git a/story-editor/src/resource.h b/software/library/resource.h
similarity index 100%
rename from story-editor/src/resource.h
rename to software/library/resource.h
diff --git a/story-editor/src/resource_manager.h b/software/library/resource_manager.h
similarity index 100%
rename from story-editor/src/resource_manager.h
rename to software/library/resource_manager.h
diff --git a/story-editor/src/story_project.cpp b/software/library/story_project.cpp
similarity index 91%
rename from story-editor/src/story_project.cpp
rename to software/library/story_project.cpp
index eab9b18..bb8c548 100644
--- a/story-editor/src/story_project.cpp
+++ b/software/library/story_project.cpp
@@ -4,21 +4,16 @@
 #include <iostream>
 #include <queue>
 #include <filesystem>
+
 #include "json.hpp"
 
 StoryProject::StoryProject()
 {
-    m_audioThread = std::thread( std::bind(&StoryProject::AudioThread, this) );
+
 }
 
 StoryProject::~StoryProject()
 {
-    // Quit audio thread
-    m_audioQueue.push({"quit", ""});
-    if (m_audioThread.joinable())
-    {
-        m_audioThread.join();
-    }
 }
 
 
@@ -100,7 +95,7 @@ void StoryProject::SaveStory(const std::vector<uint8_t> &m_program)
 
 void StoryProject::Initialize(const std::string &file_path)
 {
-    m_project_file_path = file_path;
+    m_story_file_path = file_path;
     std::filesystem::path p(file_path);
     m_working_dir= p.parent_path().generic_string();
 
@@ -243,7 +238,7 @@ void StoryProject::Save(const nlohmann::json &model, ResourceManager &manager)
     {
         nlohmann::json resourcesData;
 
-        auto [b, e] = manager.filter("");
+        auto [b, e] = manager.Items();
         for (auto it = b; it != e; ++it)
         {
             nlohmann::json obj = {{"type", (*it)->type},
@@ -258,7 +253,7 @@ void StoryProject::Save(const nlohmann::json &model, ResourceManager &manager)
 
     j["nodegraph"] = model;
 
-    std::ofstream o(m_project_file_path);
+    std::ofstream o(m_story_file_path);
     o << std::setw(4) << j << std::endl;
 }
 
@@ -364,32 +359,6 @@ std::string StoryProject::GetFileExtension(const std::string &fileName)
     return "";
 }
 
-extern "C" int miniaudio_play(const char* filename);
-
-void StoryProject::AudioThread()
-{
-    for (;;)
-    {
-        auto cmd = m_audioQueue.front();
-
-        if (cmd.order == "play") {
-            miniaudio_play(cmd.filename.c_str());
-           // QMetaObject::invokeMethod(this, "sigAudioStopped", Qt::QueuedConnection);
-            m_audioQueue.pop();
-        } else {
-            return;
-        }
-    }
-}
-
-void StoryProject::PlaySoundFile(const std::string &fileName)
-{
-    m_audioQueue.push({"play", fileName});
-}
-
-
-
-
 void StoryProject::SetImageFormat(ImageFormat format)
 {
     m_imageFormat = format;
@@ -408,7 +377,7 @@ void StoryProject::SetDisplayFormat(int w, int h)
 
 std::string StoryProject::GetProjectFilePath() const
 {
-    return m_project_file_path;
+    return m_story_file_path;
 }
 
 std::string StoryProject::GetWorkingDir() const
diff --git a/story-editor/src/story_project.h b/software/library/story_project.h
similarity index 80%
rename from story-editor/src/story_project.h
rename to software/library/story_project.h
index 392b035..a353c24 100644
--- a/story-editor/src/story_project.h
+++ b/software/library/story_project.h
@@ -5,47 +5,13 @@
 #include <string>
 #include <filesystem>
 #include "json.hpp"
-#include <condition_variable>
-#include <queue>
+
 #include <memory>
 #include <random>
-#include <thread>
-#include <mutex>
+
 #include "json.hpp"
 #include "resource_manager.h"
-
-template <typename T>
-class ThreadSafeQueue {
-    std::mutex mutex;
-    std::condition_variable cond_var;
-    std::queue<T> queue;
-
-public:
-    void push(T&& item) {
-        {
-            std::lock_guard lock(mutex);
-            queue.push(item);
-        }
-
-        cond_var.notify_one();
-    }
-
-    T& front() {
-        std::unique_lock lock(mutex);
-        cond_var.wait(lock, [&]{ return !queue.empty(); });
-        return queue.front();
-    }
-
-    void pop() {
-        std::lock_guard lock(mutex);
-        queue.pop();
-    }
-};
-
-struct AudioCommand {
-    std::string order;
-    std::string filename;
-};
+#include "audio_player.h"
 
 
 
@@ -141,9 +107,8 @@ public:
     static void EraseString(std::string &theString, const std::string &toErase);
     static std::string ToUpper(const std::string &input);
 
-
     void SaveStory(const std::vector<uint8_t> &m_program);
-    void PlaySoundFile(const std::string &fileName);
+
 private:
     // Project properties and location
     std::string m_name; /// human readable name
@@ -156,17 +121,13 @@ private:
     std::string m_titleSound;
 
     std::filesystem::path m_working_dir; /// Temporary folder based on the uuid, where the archive is unzipped
-    std::string m_project_file_path; /// JSON project file
+    std::string m_story_file_path; /// JSON project file
 
     int m_display_w{320};
     int m_display_h{240};
 
-    std::thread m_audioThread;
-    ThreadSafeQueue<AudioCommand> m_audioQueue;
-
     ImageFormat m_imageFormat{IMG_FORMAT_BMP_4BITS};
     SoundFormat m_soundFormat{SND_FORMAT_WAV};
-    void AudioThread();
 };
 
 #endif // STORY_PROJECT_H
diff --git a/story-editor/src/thread_pool.hpp b/software/library/thread_pool.hpp
similarity index 100%
rename from story-editor/src/thread_pool.hpp
rename to software/library/thread_pool.hpp
diff --git a/software/library/thread_safe_queue.h b/software/library/thread_safe_queue.h
new file mode 100644
index 0000000..28cd42d
--- /dev/null
+++ b/software/library/thread_safe_queue.h
@@ -0,0 +1,52 @@
+#ifndef THREAD_SAFE_QUEUE_H
+#define THREAD_SAFE_QUEUE_H
+
+#include <thread>
+#include <condition_variable>
+#include <mutex>
+#include <queue>
+
+template <typename T>
+class ThreadSafeQueue {
+    std::mutex mutex;
+    std::condition_variable cond_var;
+    std::queue<T> queue;
+
+public:
+    void push(T&& item) {
+        {
+            std::lock_guard lock(mutex);
+            queue.push(item);
+        }
+
+        cond_var.notify_one();
+    }
+
+    T& front() {
+        std::unique_lock lock(mutex);
+        cond_var.wait(lock, [&]{ return !queue.empty(); });
+        return queue.front();
+    }
+
+    void pop() {
+        std::lock_guard lock(mutex);
+        queue.pop();
+    }
+
+    bool try_pop(T& popped_item) {
+        std::unique_lock lock(mutex);
+
+        if (queue.empty()) {
+            return false; // La file d'attente est vide
+        }
+
+        popped_item = std::move(queue.front());
+        queue.pop();
+
+        return true;
+    }
+};
+
+
+
+#endif // THREAD_SAFE_QUEUE_H
diff --git a/story-editor/src/uuid.h b/software/library/uuid.h
similarity index 100%
rename from story-editor/src/uuid.h
rename to software/library/uuid.h
diff --git a/story-editor/CMakeLists.txt b/story-editor/CMakeLists.txt
index a42339d..749a9b0 100644
--- a/story-editor/CMakeLists.txt
+++ b/story-editor/CMakeLists.txt
@@ -131,10 +131,10 @@ set(SRCS
     src/connection.cpp
     src/connection.h
 
-    src/uuid.h
-    src/resource_manager.h
-    src/i_story_project.h
-    src/resource.h
+    src/media_converter.cpp
+    src/media_converter.h
+
+    src/i_story_manager.h
 
     libs/ImGuiColorTextEdit/TextEditor.cpp
     libs/ImGuiColorTextEdit/TextEditor.h
@@ -155,13 +155,15 @@ set(SRCS
 
     ../software/chip32/chip32_assembler.cpp
     ../software/chip32/chip32_vm.c
-    ../software/library/miniaudio.c
+    ../software/library/audio_player.cpp
+    ../software/library/audio_player.h
     ../software/library/miniaudio.h
-
-    src/story_project.cpp
-    src/story_project.h
-    src/media_converter.cpp
-    src/media_converter.h
+    ../software/library/uuid.h
+    ../software/library/resource.h
+    ../software/library/resource_manager.h
+    ../software/library/story_project.cpp
+    ../software/library/story_project.h
+    ../software/library/thread_safe_queue.h
 )
 
 if(WIN32)
diff --git a/story-editor/libs/ImGuiColorTextEdit/TextEditor.cpp b/story-editor/libs/ImGuiColorTextEdit/TextEditor.cpp
index d375392..5b07602 100644
--- a/story-editor/libs/ImGuiColorTextEdit/TextEditor.cpp
+++ b/story-editor/libs/ImGuiColorTextEdit/TextEditor.cpp
@@ -26,7 +26,8 @@ bool equals(InputIt1 first1, InputIt1 last1,
 
 TextEditor::TextEditor()
 	: mLineSpacing(1.0f)
-	, mUndoIndex(0)
+    , mUndoIndex(0)
+    , mExternalUndoBuffer(nullptr)
 	, mTabSize(4)
 	, mOverwrite(false)
 	, mReadOnly(false)
@@ -41,15 +42,10 @@ TextEditor::TextEditor()
 	, mColorRangeMin(0)
 	, mColorRangeMax(0)
 	, mSelectionMode(SelectionMode::Normal)
-	, mCheckComments(true)
-	, mLastClick(-1.0f)
-	, mHandleKeyboardInputs(true)
-	, mHandleMouseInputs(true)
-	, mIgnoreImGuiChild(false)
-	, mShowWhitespaces(true)
-	, mShowShortTabGlyphs(false)
-	, mStartTime(std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count())
-	, mExternalUndoBuffer(nullptr)
+    , mShowShortTabGlyphs(false)
+    , mCheckComments(true)
+    , mStartTime(std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count())
+    , mLastClick(-1.0f)
 {
 	SetPalette(GetDarkPalette());
 	SetLanguageDefinition(LanguageDefinition::HLSL());
@@ -981,6 +977,15 @@ void TextEditor::Render()
 				}
 			}
 
+
+            // Draw execution marker
+            if (mExecutionMarker == (lineNo + 1))
+            {
+                auto end = ImVec2(lineStartScreenPos.x + contentSize.x + 2.0f * scrollX, lineStartScreenPos.y + mCharAdvance.y);
+                drawList->AddRectFilled(start, end, mPalette[(int)PaletteIndex::Selection]);
+            }
+
+
 			// Draw line number (right aligned)
 			snprintf(buf, 16, "%d  ", lineNo + 1);
 
diff --git a/story-editor/libs/ImGuiColorTextEdit/TextEditor.h b/story-editor/libs/ImGuiColorTextEdit/TextEditor.h
index dd072d0..25eec72 100644
--- a/story-editor/libs/ImGuiColorTextEdit/TextEditor.h
+++ b/story-editor/libs/ImGuiColorTextEdit/TextEditor.h
@@ -247,6 +247,10 @@ public:
 	void SetErrorMarkers(const ErrorMarkers& aMarkers) { mErrorMarkers = aMarkers; }
 	void SetBreakpoints(const Breakpoints& aMarkers) { mBreakpoints = aMarkers; }
 
+    void SetExecutionMarker(int line) {
+        mExecutionMarker = line;
+    }
+
 	void Render(const char* aTitle, const ImVec2& aSize = ImVec2(), bool aBorder = false);
 	void SetText(const std::string& aText);
 	std::string GetText() const;
@@ -386,10 +390,10 @@ private:
 	bool mCursorPositionChanged;
 	int mColorRangeMin, mColorRangeMax;
 	SelectionMode mSelectionMode;
-	bool mHandleKeyboardInputs;
-	bool mHandleMouseInputs;
-	bool mIgnoreImGuiChild;
-	bool mShowWhitespaces;
+    bool mHandleKeyboardInputs{true};
+    bool mHandleMouseInputs{true};
+    bool mIgnoreImGuiChild{false};
+    bool mShowWhitespaces{true};
 	bool mShowShortTabGlyphs;
 
 	Palette mPaletteBase;
@@ -404,6 +408,6 @@ private:
 	Coordinates mInteractiveStart, mInteractiveEnd;
 	std::string mLineBuffer;
 	uint64_t mStartTime;
-
 	float mLastClick;
+    int mExecutionMarker{-1};
 };
diff --git a/story-editor/src/base_node.cpp b/story-editor/src/base_node.cpp
index b6817a0..a824c1a 100644
--- a/story-editor/src/base_node.cpp
+++ b/story-editor/src/base_node.cpp
@@ -5,8 +5,8 @@
 
 unsigned long BaseNode::s_nextId = 1;
 
-BaseNode::BaseNode(const std::string &title, IStoryProject &proj)
-    : m_project(proj)
+BaseNode::BaseNode(const std::string &title, IStoryManager &proj)
+    : m_story(proj)
 {
   //  m_id = UUID().String();
 
diff --git a/story-editor/src/base_node.h b/story-editor/src/base_node.h
index 4565ab9..a989385 100644
--- a/story-editor/src/base_node.h
+++ b/story-editor/src/base_node.h
@@ -7,7 +7,7 @@
 #include <string>
 
 #include "json.hpp"
-#include "i_story_project.h"
+#include "i_story_manager.h"
 
 #include <imgui_node_editor.h>
 namespace ed = ax::NodeEditor;
@@ -101,7 +101,7 @@ public:
         float y;
     };
 
-    BaseNode(const std::string &title, IStoryProject &proj);
+    BaseNode(const std::string &title, IStoryManager &proj);
 
 
     virtual void Draw() = 0;
@@ -223,7 +223,7 @@ public:
     void DeleteOutput();
 
 private:
-    IStoryProject &m_project;
+    IStoryManager &m_story;
 
     std::unique_ptr<Node> m_node;
 
diff --git a/story-editor/src/code_editor.cpp b/story-editor/src/code_editor.cpp
index 37b07ce..d4abbf8 100644
--- a/story-editor/src/code_editor.cpp
+++ b/story-editor/src/code_editor.cpp
@@ -18,8 +18,8 @@ void CodeEditor::Initialize()
 
 
     // "breakpoint" markers
-    m_breakPoints.insert(42);
-    mEditor.SetBreakpoints(m_breakPoints);
+   // m_breakPoints.insert(42);
+  //  mEditor.SetBreakpoints(m_breakPoints);
 
 }
 
diff --git a/story-editor/src/code_editor.h b/story-editor/src/code_editor.h
index 86b06e8..8bdcb0d 100644
--- a/story-editor/src/code_editor.h
+++ b/story-editor/src/code_editor.h
@@ -15,6 +15,11 @@ public:
     void SetScript(const std::string &txt);
     void ClearErrors();
     void AddError(int line, const std::string &text);
+
+    void HighlightLine(int line)
+    {
+        mEditor.SetExecutionMarker(line);
+    }
 private:
     TextEditor mEditor;
     TextEditor::Breakpoints m_breakPoints;
diff --git a/story-editor/src/emulator_window.cpp b/story-editor/src/emulator_window.cpp
index d4a5eb0..475116a 100644
--- a/story-editor/src/emulator_window.cpp
+++ b/story-editor/src/emulator_window.cpp
@@ -2,9 +2,9 @@
 #include "gui.h"
 #include "IconsMaterialDesignIcons.h"
 
-EmulatorWindow::EmulatorWindow(IStoryProject &proj)
+EmulatorWindow::EmulatorWindow(IStoryManager &proj)
     : WindowBase("Emulator")
-    , m_project(proj)
+    , m_story(proj)
 {
 
 }
@@ -31,8 +31,17 @@ void EmulatorWindow::Draw()
 //    ImGui::Image((void*)(intptr_t)my_image_texture, ImVec2(313, 367));
 
 //    float sz = ImGui::GetTextLineHeight();
+
     ImVec2 p = ImGui::GetCursorScreenPos();
-    ImGui::GetWindowDrawList()->AddRectFilled(p, ImVec2(p.x + 320, p.y + 240), ImGui::GetColorU32(ImVec4(1.0, 1.0, 1.0, 1.0)));
+
+    if (m_image.Valid())
+    {
+        ImGui::Image(m_image.texture, ImVec2(320, 240));
+    }
+    else
+    {
+        ImGui::GetWindowDrawList()->AddRectFilled(p, ImVec2(p.x + 320, p.y + 240), ImGui::GetColorU32(ImVec4(1.0, 1.0, 1.0, 1.0)));
+    }
 
     ImGui::SetCursorScreenPos(ImVec2(p.x, p.y + 244));
 
@@ -42,13 +51,25 @@ void EmulatorWindow::Draw()
     ImGui::PushFont(ImGui::GetFont());
 
 
-    ImGui::Button(ICON_MDI_PLAY_CIRCLE_OUTLINE, ImVec2(50, 50));
+    if (ImGui::Button(ICON_MDI_PLAY_CIRCLE_OUTLINE, ImVec2(50, 50)))
+    {
+        m_story.Play();
+    }
     ImGui::SameLine();
-    ImGui::Button(ICON_MDI_STOP_CIRCLE_OUTLINE, ImVec2(50, 50));
+    if (ImGui::Button(ICON_MDI_STOP_CIRCLE_OUTLINE, ImVec2(50, 50)))
+    {
+        m_story.Pause();
+    }
     ImGui::SameLine();
-    ImGui::Button(ICON_MDI_ARROW_LEFT_BOLD_CIRCLE_OUTLINE, ImVec2(50, 50));
+    if (ImGui::Button(ICON_MDI_ARROW_LEFT_BOLD_CIRCLE_OUTLINE, ImVec2(50, 50)))
+    {
+        m_story.Previous();
+    }
     ImGui::SameLine();
-    ImGui::Button(ICON_MDI_ARROW_RIGHT_BOLD_CIRCLE_OUTLINE, ImVec2(50, 50));
+    if (ImGui::Button(ICON_MDI_ARROW_RIGHT_BOLD_CIRCLE_OUTLINE, ImVec2(50, 50)))
+    {
+        m_story.Next();
+    }
 
     ImGui::GetFont()->Scale = old_size;
     ImGui::PopFont();
@@ -57,9 +78,20 @@ void EmulatorWindow::Draw()
 
     if (ImGui::Button("Build"))
     {
-        m_project.Build();
+        m_story.Build();
     }
     ImGui::SameLine();
 
     WindowBase::EndDraw();
 }
+
+void EmulatorWindow::ClearImage()
+{
+    m_image.Clear();
+}
+
+void EmulatorWindow::SetImage(const std::string &image)
+{
+    m_image.name = image;
+    m_image.Load(m_story.BuildFullAssetsPath(image));
+}
diff --git a/story-editor/src/emulator_window.h b/story-editor/src/emulator_window.h
index d2c5594..c7f790e 100644
--- a/story-editor/src/emulator_window.h
+++ b/story-editor/src/emulator_window.h
@@ -1,17 +1,22 @@
 #pragma once
 
 #include "window_base.h"
-#include "i_story_project.h"
+#include "i_story_manager.h"
+#include "gui.h"
 
 class EmulatorWindow : public WindowBase
 {
 public:
-    EmulatorWindow(IStoryProject &proj);
+    EmulatorWindow(IStoryManager &proj);
 
     void Initialize();
     virtual void Draw() override;
 
+    void ClearImage();
+    void SetImage(const std::string &image);
+
 private:
-    IStoryProject &m_project;
+    IStoryManager &m_story;
+    Gui::Image m_image;
 };
 
diff --git a/story-editor/src/gui.cpp b/story-editor/src/gui.cpp
index 46a5c53..e454ad2 100644
--- a/story-editor/src/gui.cpp
+++ b/story-editor/src/gui.cpp
@@ -22,6 +22,7 @@ your use of the corresponding standard functions.
 
 #include "IconsMaterialDesignIcons.h"
 #include "IconsFontAwesome5_c.h"
+#include "qoi.h"
 
 static void glfw_error_callback(int error, const char* description)
 {
@@ -34,24 +35,59 @@ static SDL_Renderer* renderer{nullptr};
 
 #include "stb_image.h"
 
+static std::string GetFileExtension(const std::string &fileName)
+{
+    if(fileName.find_last_of(".") != std::string::npos)
+        return fileName.substr(fileName.find_last_of(".")+1);
+    return "";
+}
+
 
 // Simple helper function to load an image into a OpenGL texture with common settings
 bool LoadTextureFromFile(const char* filename, Gui::Image &img)
 {
-    int channels;
-    unsigned char* data = stbi_load(filename, &img.w, &img.h, &channels, 0);
 
-    if (data == nullptr) {
-        fprintf(stderr, "Failed to load image: %s\n", stbi_failure_reason());
-        return false;
+
+    std::string ext = GetFileExtension(filename);
+
+    SDL_Surface* surface = nullptr;
+
+    if (ext == "qoi")
+    {
+        qoi_desc desc;
+        void *pixels = qoi_read(filename, &desc, 0);
+        unsigned int channels = desc.channels;
+        img.w = desc.width;
+        img.h = desc.height;
+
+        surface = SDL_CreateRGBSurfaceFrom((void*)pixels, img.w, img.h, channels * 8, channels * img.w,
+                                           0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
+
+        if (pixels != NULL)
+        {
+            free(pixels);
+        }
     }
+    else
+    {
+        unsigned char* data = nullptr;
+        int channels;
+        data = stbi_load(filename, &img.w, &img.h, &channels, 0);
 
-    // SDL3
-//    SDL_Surface* surface = SDL_CreateSurfaceFrom((void*)data, img.w, img.h, 4 * img.w, SDL_PIXELFORMAT_RGBA8888);
+        if (data == nullptr) {
+            fprintf(stderr, "Failed to load image: %s\n", stbi_failure_reason());
+            return false;
+        }
 
-    // SDL2
-    SDL_Surface* surface = SDL_CreateRGBSurfaceFrom((void*)data, img.w, img.h, channels * 8, channels * img.w,
-                                                    0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
+
+        // SDL3
+        //    SDL_Surface* surface = SDL_CreateSurfaceFrom((void*)data, img.w, img.h, 4 * img.w, SDL_PIXELFORMAT_RGBA8888);
+
+        // SDL2
+        surface = SDL_CreateRGBSurfaceFrom((void*)data, img.w, img.h, channels * 8, channels * img.w,
+                                           0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
+        stbi_image_free(data);
+    }
 
 
     if (surface == nullptr) {
@@ -67,7 +103,7 @@ bool LoadTextureFromFile(const char* filename, Gui::Image &img)
 
 //    SDL_DestroySurface(surface); // SDL3
     SDL_FreeSurface(surface); // SDL2
-    stbi_image_free(data);
+
 
     return true;
 }
diff --git a/story-editor/src/i_story_project.h b/story-editor/src/i_story_manager.h
similarity index 79%
rename from story-editor/src/i_story_project.h
rename to story-editor/src/i_story_manager.h
index f51ccf3..7584895 100644
--- a/story-editor/src/i_story_project.h
+++ b/story-editor/src/i_story_manager.h
@@ -1,5 +1,5 @@
-#ifndef I_STORY_PROJECT_H
-#define I_STORY_PROJECT_H
+#ifndef I_STORY_MANAGER_H
+#define I_STORY_MANAGER_H
 
 
 #include <string>
@@ -10,10 +10,10 @@
 #include "resource.h"
 #include "connection.h"
 
-class IStoryProject
+class IStoryManager
 {
 public:
-    virtual ~IStoryProject() {}
+    virtual ~IStoryManager() {}
 
     virtual void Log(const std::string &txt, bool critical = false) = 0;
     virtual void PlaySoundFile(const std::string &fileName) = 0;
@@ -31,7 +31,12 @@ public:
     virtual void Build() = 0;
     virtual std::list<std::shared_ptr<Connection>> GetNodeConnections(unsigned long nodeId) = 0;
     virtual std::string GetNodeEntryLabel(unsigned long nodeId) = 0;
+    virtual void Play() = 0;
+    virtual void Pause() = 0;
+    virtual void Next() = 0;
+    virtual void Previous() = 0;
+
 
 };
 
-#endif // I_STORY_PROJECT_H
+#endif // I_STORY_MANAGER_H
diff --git a/story-editor/src/main_window.cpp b/story-editor/src/main_window.cpp
index b193011..6461746 100644
--- a/story-editor/src/main_window.cpp
+++ b/story-editor/src/main_window.cpp
@@ -4,6 +4,7 @@
 
 #include "platform_folders.h"
 #include "uuid.h"
+#include "media_converter.h"
 
 #ifdef USE_WINDOWS_OS
 #include <winsock2.h>
@@ -22,9 +23,24 @@ MainWindow::MainWindow()
     : m_emulatorWindow(*this)
     , m_resourcesWindow(*this)
     , m_nodeEditorWindow(*this)
-
+    , m_player(*this)
 {
-    m_project.Clear();
+
+    // VM Initialize
+    m_chip32_ctx.stack_size = 512;
+
+    m_chip32_ctx.rom.mem = m_rom_data;
+    m_chip32_ctx.rom.addr = 0;
+    m_chip32_ctx.rom.size = sizeof(m_rom_data);
+
+    m_chip32_ctx.ram.mem = m_ram_data;
+    m_chip32_ctx.ram.addr = sizeof(m_rom_data);
+    m_chip32_ctx.ram.size = sizeof(m_ram_data);
+
+    Callback<uint8_t(chip32_ctx_t *, uint8_t)>::func = std::bind(&MainWindow::Syscall, this, std::placeholders::_1, std::placeholders::_2);
+    m_chip32_ctx.syscall = static_cast<syscall_t>(Callback<uint8_t(chip32_ctx_t *, uint8_t)>::callback);
+
+    m_story.Clear();
 }
 
 MainWindow::~MainWindow()
@@ -32,6 +48,194 @@ MainWindow::~MainWindow()
 
 }
 
+
+std::string MainWindow::GetFileNameFromMemory(uint32_t addr)
+{
+    char strBuf[100];
+    bool isRam = addr & 0x80000000;
+    addr &= 0xFFFF; // mask the RAM/ROM bit, ensure 16-bit addressing
+    if (isRam) {
+        strcpy(&strBuf[0], (const char *)&m_chip32_ctx.ram.mem[addr]);
+    } else {
+        strcpy(&strBuf[0], (const char *)&m_chip32_ctx.rom.mem[addr]);
+    }
+    return strBuf;
+}
+
+/*
+void MainWindow::EventFinished(uint32_t replyEvent)
+{
+    if (m_dbg.run_result == VM_WAIT_EVENT)
+    {
+        // Result event is in R0
+        m_chip32_ctx.registers[R0] = replyEvent;
+        m_dbg.run_result = VM_OK;
+
+        if (m_dbg.free_run)
+        {
+            m_runTimer->start(100);
+        }
+        else
+        {
+            stepInstruction();
+        }
+    }
+}*/
+
+
+void MainWindow::Play()
+{
+    if (m_dbg.run_result == VM_FINISHED)
+    {
+        Build();
+
+        if (m_dbg.run_result == VM_READY)
+        {
+            m_dbg.free_run = true;
+            m_dbg.run_result = VM_OK; // actually starts the execution
+        }
+    }
+}
+
+void MainWindow::Pause()
+{
+
+}
+
+void MainWindow::Next()
+{
+
+}
+
+void MainWindow::Previous()
+{
+
+}
+
+void MainWindow::EndOfAudio()
+{
+    Log("End of audio track");
+    m_eventQueue.push({VmEventType::EvAudioFinished});
+}
+
+void MainWindow::StepInstruction()
+{
+    m_dbg.run_result = chip32_step(&m_chip32_ctx);
+    UpdateVmView();
+}
+
+void MainWindow::ProcessStory()
+{
+    if (m_dbg.run_result == VM_FINISHED)
+        return;
+
+    if (m_dbg.run_result == VM_READY)
+        return;
+
+    // 1. First, check events
+    if (m_dbg.run_result == VM_WAIT_EVENT)
+    {
+        VmEvent event;
+        if (m_eventQueue.try_pop(event))
+        {
+            if (event.type == VmEventType::EvStep)
+            {
+                m_dbg.run_result = VM_OK;
+            }
+            else if (event.type == VmEventType::EvOkButton)
+            {
+                m_chip32_ctx.registers[R0] = 0x01;
+                m_dbg.run_result = VM_OK;
+            }
+            else if (event.type == VmEventType::EvLeftButton)
+            {
+                m_chip32_ctx.registers[R0] = 0x02;
+                m_dbg.run_result = VM_OK;
+            }
+            else if (event.type == VmEventType::EvRightButton)
+            {
+                m_chip32_ctx.registers[R0] = 0x04;
+                m_dbg.run_result = VM_OK;
+            }
+            else if (event.type == VmEventType::EvAudioFinished)
+            {
+                m_chip32_ctx.registers[R0] = 0x08;
+                m_dbg.run_result = VM_OK;
+            }
+        }
+    }
+
+    if (m_dbg.run_result == VM_OK)
+    {
+        if (m_dbg.m_breakpoints.contains(m_dbg.line + 1))
+        {
+            Log("Breakpoint on line: " + std::to_string(m_dbg.line + 1));
+            m_dbg.free_run = false;
+            return;
+        }
+        StepInstruction();
+    }
+
+    if (m_dbg.run_result == VM_FINISHED)
+    {
+        m_dbg.free_run = false;
+    }
+
+    // In this case, we wait for single step debugger
+    if ((m_dbg.run_result == VM_OK) && !m_dbg.free_run)
+    {
+        m_dbg.run_result = VM_WAIT_EVENT;
+    }
+}
+
+uint8_t MainWindow::Syscall(chip32_ctx_t *ctx, uint8_t code)
+{
+    uint8_t retCode = SYSCALL_RET_OK;
+    Log("SYSCALL: " + std::to_string(code));
+
+    // Media
+    if (code == 1) // Execute media
+    {
+        if (m_chip32_ctx.registers[R0] != 0)
+        {
+            // image file name address is in R0
+            std::string imageFile = m_story.BuildFullAssetsPath(GetFileNameFromMemory(m_chip32_ctx.registers[R0]));
+            Log("Image: " + imageFile);
+            m_emulatorWindow.SetImage(imageFile);
+        }
+        else
+        {
+            m_emulatorWindow.ClearImage();
+        }
+
+        if (m_chip32_ctx.registers[R1] != 0)
+        {
+            // sound file name address is in R1
+            std::string soundFile = m_story.BuildFullAssetsPath(GetFileNameFromMemory(m_chip32_ctx.registers[R1]));
+            Log(", Sound: " + soundFile);
+            m_player.Play(soundFile);
+        }
+        retCode = SYSCALL_RET_WAIT_EV; // set the VM in pause
+    }
+    // WAIT EVENT bits:
+    // 0: block
+    // 1: OK button
+    // 2: home button
+    // 3: pause button
+    // 4: rotary left
+    // 5: rotary right
+    else if (code == 2) // Wait for event
+    {
+        // Event mask is located in R0
+        // optional timeout is located in R1
+        // if timeout is set to zero, wait for infinite and beyond
+        retCode = SYSCALL_RET_WAIT_EV; // set the VM in pause
+    }
+
+
+    return retCode;
+}
+
 void MainWindow::DrawStatusBar()
 {
     float statusWindowHeight = ImGui::GetFrameHeight() * 1.4f;
@@ -221,11 +425,11 @@ void MainWindow::OpenProjectDialog()
             std::string filePath = ImGuiFileDialog::Instance()->GetCurrentPath();
 
 
-            m_project.Initialize(filePathName);
+            m_story.Initialize(filePathName);
 
             nlohmann::json model;
 
-            if (m_project.Load(filePathName, model, m_resources))
+            if (m_story.Load(filePathName, model, m_resources))
             {
                 Log("Open project success");
                 m_nodeEditorWindow.Load(model);
@@ -247,7 +451,7 @@ void MainWindow::OpenProjectDialog()
 
 void MainWindow::EnableProject()
 {
-    auto proj = m_project.GetProjectFilePath();
+    auto proj = m_story.GetProjectFilePath();
     // Add to recent if not exists
     if (std::find(m_recentProjects.begin(), m_recentProjects.end(), proj) != m_recentProjects.end())
     {
@@ -426,21 +630,21 @@ void MainWindow::NewProjectPopup()
 
             if (valid)
             {
-                m_project.Initialize(std::filesystem::path(projdir) / "project.json");
+                m_story.Initialize(std::filesystem::path(projdir) / "project.json");
 
                 if (display_item_current_idx == 0)
                 {
-                    m_project.SetDisplayFormat(320, 240);
+                    m_story.SetDisplayFormat(320, 240);
                 }
                 else
                 {
-                    m_project.SetDisplayFormat(640, 480);
+                    m_story.SetDisplayFormat(640, 480);
                 }
 
-                m_project.SetImageFormat(GetImageFormat(image_item_current_idx));
-                m_project.SetSoundFormat(GetSoundFormat(sound_item_current_idx));
-                m_project.SetName(project_name);
-                m_project.SetUuid(UUID().String());
+                m_story.SetImageFormat(GetImageFormat(image_item_current_idx));
+                m_story.SetSoundFormat(GetSoundFormat(sound_item_current_idx));
+                m_story.SetName(project_name);
+                m_story.SetUuid(UUID().String());
 
                 SaveProject();
                 EnableProject();
@@ -466,12 +670,12 @@ void MainWindow::SaveProject()
 {
     nlohmann::json model;
     m_nodeEditorWindow.Save(model);
-    m_project.Save(model, m_resources);
+    m_story.Save(model, m_resources);
 }
 
 void MainWindow::CloseProject()
 {
-    m_project.Clear();
+    m_story.Clear();
     m_nodeEditorWindow.Clear();
 
 //    m_model.Clear();
@@ -505,6 +709,10 @@ void MainWindow::Loop()
         DrawMainMenuBar();
        // DrawStatusBar();
 
+
+        ProcessStory();
+
+
         // ------------  Draw all windows
         m_consoleWindow.Draw();
         m_emulatorWindow.Draw();
@@ -543,12 +751,12 @@ void MainWindow::Log(const std::string &txt, bool critical)
 void MainWindow::PlaySoundFile(const std::string &fileName)
 {
     Log("Play sound file: " + fileName);
-    m_project.PlaySoundFile(fileName);
+    m_player.Play(fileName);
 }
 
 std::string MainWindow::BuildFullAssetsPath(const std::string &fileName) const
 {
-    return m_project.BuildFullAssetsPath(fileName);
+    return m_story.BuildFullAssetsPath(fileName);
 }
 
 std::pair<FilterIterator, FilterIterator> MainWindow::Images()
@@ -647,9 +855,9 @@ void MainWindow::GenerateBinary()
             // FIXME
 //            m_ramView->SetMemory(m_ram_data, sizeof(m_ram_data));
 //            m_romView->SetMemory(m_rom_data, m_program.size());
-            m_project.SaveStory(m_program);
+            m_story.SaveStory(m_program);
             chip32_initialize(&m_chip32_ctx);
-            m_dbg.run_result = VM_OK;
+            m_dbg.run_result = VM_READY;
             UpdateVmView();
             //            DebugContext::DumpCodeAssembler(m_assembler);
         }
@@ -672,14 +880,70 @@ void MainWindow::UpdateVmView()
 {
     // FIXME
 //    m_vmDock->updateRegistersView(m_chip32_ctx);
-//    highlightNextLine();
+
+
+    // Highlight next line in the test editor
+    uint32_t pcVal = m_chip32_ctx.registers[PC];
+
+    // On recherche quelle est la ligne qui possède une instruction à cette adresse
+    std::vector<Chip32::Instr>::const_iterator ptr = m_assembler.Begin();
+    for (; ptr != m_assembler.End(); ++ptr)
+    {
+        if ((ptr->addr == pcVal) && ptr->isRomCode())
+        {
+            break;
+        }
+    }
+
+    if (ptr != m_assembler.End())
+    {
+        m_dbg.line = (ptr->line - 1);
+        m_editor.HighlightLine(m_dbg.line);
+    }
+    else
+    {
+        // Not found
+        Log("Reached end or instruction not found line: " + std::to_string(m_dbg.line));
+    }
+
+
     // Refresh RAM content
 //    m_ramView->SetMemory(m_ram_data, m_chip32_ctx.ram.size);
 }
 
 void MainWindow::ConvertResources()
 {
+    auto [b, e] = m_resources.Items();
+    for (auto it = b; it != e; ++it)
+    {
+        std::string inputfile = m_story.BuildFullAssetsPath((*it)->file.c_str());
+        std::string outputfile = std::filesystem::path(m_story.AssetsPath() / StoryProject::RemoveFileExtension((*it)->file)).string();
 
+        int retCode = 0;
+        if ((*it)->format == "PNG")
+        {
+            outputfile += ".qoi"; // FIXME: prendre la congif en cours désirée
+            retCode = MediaConverter::ImageToQoi(inputfile, outputfile);
+        }
+        else if ((*it)->format == "MP3")
+        {
+            outputfile += ".wav"; // FIXME: prendre la congif en cours désirée
+            retCode = MediaConverter::Mp3ToWav(inputfile, outputfile);
+        }
+        else
+        {
+            Log("Skipped: " + inputfile + ", unknown format" + outputfile, true);
+        }
+
+        if (retCode < 0)
+        {
+            Log("Failed to convert media file " + inputfile + ", error code: " + std::to_string(retCode) + " to: " + outputfile, true);
+        }
+        else if (retCode == 0)
+        {
+            Log("Convertered file: " + inputfile);
+        }
+    }
 }
 
 void MainWindow::SaveParams()
diff --git a/story-editor/src/main_window.h b/story-editor/src/main_window.h
index 5e3e773..34f61ab 100644
--- a/story-editor/src/main_window.h
+++ b/story-editor/src/main_window.h
@@ -1,6 +1,9 @@
 #ifndef MAINWINDOW_H
 #define MAINWINDOW_H
 
+
+#include <functional>
+
 #include "gui.h"
 #include "console_window.h"
 #include "code_editor.h"
@@ -13,7 +16,8 @@
 #include "chip32_assembler.h"
 #include "chip32_vm.h"
 #include "story_project.h"
-#include "i_story_project.h"
+#include "i_story_manager.h"
+#include "thread_safe_queue.h"
 
 struct DebugContext
 {
@@ -25,6 +29,10 @@ struct DebugContext
 
     std::set<int> m_breakpoints;
 
+    void Stop() {
+        run_result = VM_FINISHED;
+    }
+
     static void DumpCodeAssembler(Chip32::Assembler & assembler) {
 
         for (std::vector<Chip32::Instr>::const_iterator iter = assembler.Begin();
@@ -51,7 +59,7 @@ struct DebugContext
     }
 };
 
-#include <functional>
+
 
 template <typename T>
 struct Callback;
@@ -70,7 +78,7 @@ std::function<Ret(Params...)> Callback<Ret(Params...)>::func;
 
 
 
-class MainWindow : public IStoryProject
+class MainWindow : public IStoryManager, public IAudioEvent
 {
 public:
     MainWindow();
@@ -80,8 +88,9 @@ public:
     void Loop();
 
 private:
+    enum VmEventType { EvNoEvent, EvStep, EvOkButton, EvLeftButton, EvRightButton, EvAudioFinished};
 
-    StoryProject m_project;
+    StoryProject m_story;
 
     // VM
     uint8_t m_rom_data[16*1024];
@@ -95,6 +104,7 @@ private:
     DebugContext m_dbg;
     std::string m_currentCode;
 
+
     std::vector<std::string> m_recentProjects;
 
     ResourceManager m_resources;
@@ -110,8 +120,17 @@ private:
 
     PropertiesWindow m_PropertiesWindow;
 
+    AudioPlayer m_player;
 
-    // From IStoryProject (proxy to StoryProject class)
+    struct VmEvent
+    {
+        VmEventType type;
+    };
+
+    ThreadSafeQueue<VmEvent> m_eventQueue;
+
+
+    // From IStoryManager (proxy to StoryProject class)
     virtual void Log(const std::string &txt, bool critical = false) override;
     virtual void PlaySoundFile(const std::string &fileName) override;;
     virtual std::string BuildFullAssetsPath(const std::string &fileName) const override;
@@ -125,6 +144,13 @@ private:
     virtual void Build() override;
     virtual std::list<std::shared_ptr<Connection>> GetNodeConnections(unsigned long nodeId) override;
     virtual std::string GetNodeEntryLabel(unsigned long nodeId) override;
+    virtual void Play() override;
+    virtual void Pause() override;
+    virtual void Next() override;
+    virtual void Previous() override;
+
+    // From IAudioEvent
+    virtual void EndOfAudio() override;
 
     void SaveParams();
     void LoadParams();
@@ -143,6 +169,10 @@ private:
     void ConvertResources();
     void GenerateBinary();
     void UpdateVmView();
+    uint8_t Syscall(chip32_ctx_t *ctx, uint8_t code);
+    std::string GetFileNameFromMemory(uint32_t addr);
+    void ProcessStory();
+    void StepInstruction();
 };
 
 #endif // MAINWINDOW_H
diff --git a/story-editor/src/media_node.cpp b/story-editor/src/media_node.cpp
index 48db78c..d510181 100644
--- a/story-editor/src/media_node.cpp
+++ b/story-editor/src/media_node.cpp
@@ -4,9 +4,9 @@ namespace ed = ax::NodeEditor;
 #include "IconsMaterialDesignIcons.h"
 #include "story_project.h"
 
-MediaNode::MediaNode(const std::string &title, IStoryProject &proj)
+MediaNode::MediaNode(const std::string &title, IStoryManager &proj)
     : BaseNode(title, proj)
-    , m_project(proj)
+    , m_story(proj)
 {
     Gui::LoadRawImage("fairy.png", m_image);
 
@@ -87,8 +87,6 @@ void MediaNode::Draw()
 
     DrawPins();
 
-
-
     BaseNode::FrameEnd();
 
 }
@@ -144,7 +142,7 @@ void MediaNode::DrawProperties()
 
     if (ImGui::Button(m_buttonUniqueName.c_str()))
     {
-        m_project.PlaySoundFile(m_soundPath);
+        m_story.PlaySoundFile(m_soundPath);
     }
 
     ImGui::SameLine();
@@ -163,7 +161,7 @@ void MediaNode::DrawProperties()
     if (ImGui::BeginPopup("popup_button")) {
         ImGui::SeparatorText(isImage ? "Images" : "Sounds");
 
-        auto [filtreDebut, filtreFin] = isImage ? m_project.Images() : m_project.Sounds();
+        auto [filtreDebut, filtreFin] = isImage ? m_story.Images() : m_story.Sounds();
         int n = 0;
         for (auto it = filtreDebut; it != filtreFin; ++it, n++)
         {
@@ -188,13 +186,13 @@ void MediaNode::DrawProperties()
 void MediaNode::SetImage(const std::string &f)
 {
     m_image.name = f;
-    m_image.Load(m_project.BuildFullAssetsPath(f));
+    m_image.Load(m_story.BuildFullAssetsPath(f));
 }
 
 void MediaNode::SetSound(const std::string &f)
 {
     m_soundName = f;
-    m_soundPath = m_project.BuildFullAssetsPath(m_soundName);
+    m_soundPath = m_story.BuildFullAssetsPath(m_soundName);
 }
 
 
@@ -238,14 +236,14 @@ std::string MediaNode::GenerateConstants()
            << " DC32, "
            << nb_out_conns << ", ";
 
-        std::list<std::shared_ptr<Connection>> conns = m_project.GetNodeConnections(GetId());
+        std::list<std::shared_ptr<Connection>> conns = m_story.GetNodeConnections(GetId());
         int i = 0;
         for (auto & c : conns)
         {
             std::stringstream ssChoice;
 
             // On va chercher le label d'entrée du noeud connecté à l'autre bout
-            ss << m_project.GetNodeEntryLabel(c->inNodeId);
+            ss << m_story.GetNodeEntryLabel(c->inNodeId);
             if (i < (nb_out_conns - 1))
             {
                 ss << ", ";
@@ -311,7 +309,7 @@ std::string MediaNode::Build()
     }
     else if (nb_out_conns == 1) // it is a transition node
     {
-        std::list<std::shared_ptr<Connection>> conns = m_project.GetNodeConnections(GetId());
+        std::list<std::shared_ptr<Connection>> conns = m_story.GetNodeConnections(GetId());
 
 
         for (auto c : conns)
@@ -320,7 +318,7 @@ std::string MediaNode::Build()
             {
                 // On place dans R0 le prochain noeud à exécuter en cas de OK
                 ss << "lcons r0, "
-                   << m_project.GetNodeEntryLabel(c->inNodeId) << "\n"
+                   << m_story.GetNodeEntryLabel(c->inNodeId) << "\n"
                    << "ret\n";
             }
         }
diff --git a/story-editor/src/media_node.h b/story-editor/src/media_node.h
index 5198512..e05b445 100644
--- a/story-editor/src/media_node.h
+++ b/story-editor/src/media_node.h
@@ -6,7 +6,7 @@
 #include <set>
 
 #include "base_node.h"
-#include "i_story_project.h"
+#include "i_story_manager.h"
 #include "gui.h"
 #include <imgui_node_editor.h>
 
@@ -14,7 +14,7 @@
 class MediaNode : public BaseNode
 {
 public:
-    MediaNode(const std::string &title, IStoryProject &proj);
+    MediaNode(const std::string &title, IStoryManager &proj);
 
     void Draw() override;
 
@@ -25,7 +25,7 @@ public:
     virtual std::string GetEntryLabel() override;
     virtual std::string GenerateConstants() override;
 private:
-    IStoryProject &m_project;
+    IStoryManager &m_story;
     Gui::Image  m_image;
     std::string m_soundName;
     std::string m_soundPath;
diff --git a/story-editor/src/node_editor_window.cpp b/story-editor/src/node_editor_window.cpp
index e6cb600..ab60239 100644
--- a/story-editor/src/node_editor_window.cpp
+++ b/story-editor/src/node_editor_window.cpp
@@ -10,9 +10,9 @@
 #include "gui.h"
 
 
-NodeEditorWindow::NodeEditorWindow(IStoryProject &proj)
+NodeEditorWindow::NodeEditorWindow(IStoryManager &proj)
     : WindowBase("Node editor")
-    , m_project(proj)
+    , m_story(proj)
 {
 
     registerNode<MediaNode>("media-node");
@@ -47,7 +47,7 @@ void NodeEditorWindow::LoadNode(const nlohmann::json &nodeJson)
         nlohmann::json internalDataJson = nodeJson["internal-data"];
         std::string type = nodeJson["type"].get<std::string>();
 
-        auto n = createNode(type, "", m_project);
+        auto n = createNode(type, "", m_story);
         if (n)
         {
             n->SetType(type); // FIXME: set type in createNode factory?
@@ -225,7 +225,7 @@ uint32_t NodeEditorWindow::FindFirstNode() const
         if (!foundConnection)
         {
             id = n->GetId();
-            m_project.Log("First node is: " + std::to_string(id));
+            m_story.Log("First node is: " + std::to_string(id));
             break;
         }
     }
diff --git a/story-editor/src/node_editor_window.h b/story-editor/src/node_editor_window.h
index 60788b3..9a2bdf2 100644
--- a/story-editor/src/node_editor_window.h
+++ b/story-editor/src/node_editor_window.h
@@ -9,7 +9,7 @@
 #include <imgui_node_editor.h>
 #include "base_node.h"
 #include "window_base.h"
-#include "i_story_project.h"
+#include "i_story_manager.h"
 #include "story_project.h"
 #include "json.hpp"
 
@@ -48,7 +48,7 @@ public:
         std::shared_ptr<Connection> model;
     };
 
-    NodeEditorWindow(IStoryProject &proj);
+    NodeEditorWindow(IStoryManager &proj);
     ~NodeEditorWindow();
     virtual void Draw() override;
 
@@ -63,7 +63,7 @@ public:
     std::shared_ptr<BaseNode> GetSelectedNode();
 
 private:
-    IStoryProject &m_project;
+    IStoryManager &m_story;
 
     ed::EditorContext* m_context = nullptr;
 
@@ -90,12 +90,12 @@ private:
 
     template<class NodeType>
     struct Factory {
-        static std::shared_ptr<BaseNode> create_func(const std::string &title, IStoryProject &proj) {
+        static std::shared_ptr<BaseNode> create_func(const std::string &title, IStoryManager &proj) {
             return std::make_shared<NodeType>(title, proj);
         }
     };
 
-    typedef std::shared_ptr<BaseNode> (*GenericCreator)(const std::string &title, IStoryProject &proj);
+    typedef std::shared_ptr<BaseNode> (*GenericCreator)(const std::string &title, IStoryManager &proj);
     typedef std::map<std::string, GenericCreator> Registry;
     Registry m_registry;
 
@@ -104,7 +104,7 @@ private:
         m_registry.insert(typename Registry::value_type(key, Factory<Derived>::create_func));
     }
 
-    std::shared_ptr<BaseNode> createNode(const std::string& key, const std::string &title, IStoryProject &proj) {
+    std::shared_ptr<BaseNode> createNode(const std::string& key, const std::string &title, IStoryManager &proj) {
         typename Registry::const_iterator i = m_registry.find(key);
         if (i == m_registry.end()) {
             throw std::invalid_argument(std::string(__PRETTY_FUNCTION__) +
diff --git a/story-editor/src/resources_window.cpp b/story-editor/src/resources_window.cpp
index 20ff73e..f7b90b2 100644
--- a/story-editor/src/resources_window.cpp
+++ b/story-editor/src/resources_window.cpp
@@ -8,9 +8,9 @@
 
 //static thread_pool pool;
 
-ResourcesWindow::ResourcesWindow(IStoryProject &project)
+ResourcesWindow::ResourcesWindow(IStoryManager &project)
     : WindowBase("Resources")
-    , m_project(project)
+    , m_story(project)
 {
 
 }
@@ -44,7 +44,7 @@ void ResourcesWindow::ChooseFile()
 
 
             std::filesystem::path p(filePathName);
-            std::filesystem::path p2 = m_project.BuildFullAssetsPath( p.filename());
+            std::filesystem::path p2 = m_story.BuildFullAssetsPath( p.filename());
             std::filesystem::copy(p, p2, std::filesystem::copy_options::overwrite_existing);
 
             auto res = std::make_shared<Resource>();
@@ -56,7 +56,7 @@ void ResourcesWindow::ChooseFile()
             res->format = ext;
             res->type = m_soundFile ? "sound" : "image";
             res->file = p.filename().generic_string();
-            m_project.AddResource(res);
+            m_story.AddResource(res);
         }
 
         // close
@@ -104,7 +104,7 @@ void ResourcesWindow::Draw()
 
         ImGui::TableHeadersRow();
 
-        auto [b, e] = m_project.Resources();
+        auto [b, e] = m_story.Resources();
 
         int id = 1000;
         for (auto it = b; it != e; ++it)
@@ -152,7 +152,7 @@ void ResourcesWindow::Draw()
             ImGui::TableNextColumn();
             if (ImGui::SmallButton("Delete"))
             {
-                m_project.DeleteResource(it);
+                m_story.DeleteResource(it);
                 quitLoop = true;
             }
             ImGui::PopID();
diff --git a/story-editor/src/resources_window.h b/story-editor/src/resources_window.h
index 4248146..fee3882 100644
--- a/story-editor/src/resources_window.h
+++ b/story-editor/src/resources_window.h
@@ -3,18 +3,18 @@
 #include <vector>
 #include <map>
 #include <mutex>
-#include "i_story_project.h"
+#include "i_story_manager.h"
 #include "window_base.h"
 
 class ResourcesWindow : public WindowBase
 {
 public:
-    ResourcesWindow(IStoryProject &project);
+    ResourcesWindow(IStoryManager &project);
     ~ResourcesWindow();
     virtual void Draw() override;
 
 private:
-    IStoryProject &m_project;
+    IStoryManager &m_story;
 
     bool m_showImportDialog{false};
     bool m_soundFile{false};