Foundation of wren scripting system

scripts/build.bat

@@ -36,6 +36,7 @@ IF NOT "!BUILD_ERRORLEVEL!"=="0" (
 
 
 xcopy /y test_data\engine_state.json build\Release\
+xcopy /y test_data\world_interface.wren build\Release\
 xcopy /y src\renderer\shaders\* build\Release\*
 
 
@@ -50,6 +51,7 @@ IF NOT "!BUILD_ERRORLEVEL!"=="0" (
 
 
 xcopy /y test_data\engine_state.json build\RelWithDebInfo\
+xcopy /y test_data\world_interface.wren build\RelWithDebInfo\
 xcopy /y src\renderer\shaders\* build\RelWithDebInfo\*
 
 ) ELSE (
@@ -63,6 +65,7 @@ IF NOT "!BUILD_ERRORLEVEL!"=="0" (
 
 
 xcopy /y test_data\engine_state.json build\Debug\
+xcopy /y test_data\world_interface.wren build\Debug\
 xcopy /y src\renderer\shaders\* build\Debug\*
 
 )

src/gui/console.h

@@ -22,7 +22,7 @@ namespace lunarium
     class GuiListener : public LogListener
     {
     public:
-        GuiListener(Console* pCon, uint32_t acceptedLogLevels = LogLevel::ANY, uint32_t acceptedLogCategories = LogLevel::ANY, const char* myName = "Gui Listener");
+        GuiListener(Console* pCon, uint32_t acceptedLogLevels = LogLevel::ANY  & ~LogLevel::GRAPHICS_INTERNAL_DEBUG, uint32_t acceptedLogCategories = LogLevel::ANY, const char* myName = "Gui Listener");
 		virtual bool Log(LogMessage& message);
 
     private:

src/run_modes/editor/contents/script.cpp

@@ -19,10 +19,11 @@ namespace lunarium { namespace editor
     Script::Script(std::filesystem::path file_location, std::filesystem::path asset_dir)
         : EditorAsset(AssetType::EATYPE_SCRIPT)
     {
+        std::string full_path = (asset_dir / file_location).string();
         std::ofstream ofs(asset_dir / file_location);
         if (!ofs.is_open())
         {
-            Logger::Warn(Editor::LogCat, "Could not create file %s", (asset_dir / file_location).string().c_str());
+            Logger::Warn(Editor::LogCat, "Could not create file \"%s\"", full_path.c_str());
         }
 
         ofs.close();

src/run_modes/editor/panels/world_view.cpp

@@ -115,9 +115,11 @@ namespace lunarium { namespace editor
     
     void WorldView::DoToolBar()
     {
+        ImVec4 tint = mSimRunning ? ImVec4(0.5f, 0.5f, 0.5f, 1.0f) : ImVec4(1, 1, 1, 1);
         ImGui::SetCursorPosX(ImGui::GetContentRegionAvailWidth() / 2 - 48);     // 48 is 32 + 16 which is 1 and a half button widths
         if (ImGui::ImageButton((ImTextureID)DataManager::mPlayArrow->GetGLID64(), 
-            ImVec2(DataManager::mPlayArrow->GetWidth(), DataManager::mPlayArrow->GetHeight())) && !mSimRunning)
+            ImVec2(DataManager::mPlayArrow->GetWidth(), DataManager::mPlayArrow->GetHeight()), 
+            ImVec2(0, 0), ImVec2(1, 1), -1, ImVec4(0, 0, 0, 0), tint) && !mSimRunning)
         {
             if (mSimPaused)
             {
@@ -127,14 +129,16 @@ namespace lunarium { namespace editor
             {
                 mpEditor->OnPlay();
                 mWorldState = mpWorld->GetState();
+                mpWorld->OnLoad();
                 mSimRunning = true;
             }
         }
 
         ImGui::SameLine();
-
+        tint = !mSimRunning ? ImVec4(0.5f, 0.5f, 0.5f, 1.0f) : ImVec4(1, 1, 1, 1);
         if (ImGui::ImageButton((ImTextureID)DataManager::mPause->GetGLID64(), 
-            ImVec2(DataManager::mPause->GetWidth(), DataManager::mPause->GetHeight())))
+            ImVec2(DataManager::mPause->GetWidth(), DataManager::mPause->GetHeight()), 
+            ImVec2(0, 0), ImVec2(1, 1), -1, ImVec4(0, 0, 0, 0), tint))
         {
             mpEditor->OnPause();
             mSimPaused = !mSimPaused;
@@ -142,10 +146,13 @@ namespace lunarium { namespace editor
 
         ImGui::SameLine();
 
+        tint = !mSimRunning ? ImVec4(0.5f, 0.5f, 0.5f, 1.0f) : ImVec4(1, 1, 1, 1);
         if (ImGui::ImageButton((ImTextureID)DataManager::mStop->GetGLID64(), 
-            ImVec2(DataManager::mStop->GetWidth(), DataManager::mStop->GetHeight())) && mSimRunning)
+            ImVec2(DataManager::mStop->GetWidth(), DataManager::mStop->GetHeight()), 
+            ImVec2(0, 0), ImVec2(1, 1), -1, ImVec4(0, 0, 0, 0), tint) && mSimRunning)
         {
             mpEditor->OnStop();
+            mpWorld->OnUnload();
             mpWorld->ResetState(mWorldState);
             mSimRunning = false;
         }

src/scripting/wren_state.cpp

@@ -64,6 +64,24 @@ namespace lunarium
     }
 
     
+    void WrenState::RunSnippet(std::string name, std::string code)
+    {
+        if (!mpVM)
+        {
+            Logger::Error(mLogCat, "Could not run script - the VM is nullptr");
+            return;
+        }
+
+        WrenInterpretResult result = wrenInterpret(mpVM, name.c_str(), code.c_str());
+        switch (result)
+        {
+            case WREN_RESULT_COMPILE_ERROR: Logger::Trace(mLogCat, "Snippet compile error in module: %s", name.c_str()); break;
+            case WREN_RESULT_RUNTIME_ERROR: Logger::Trace(mLogCat, "Snippet runtime error in module: %s", name.c_str()); break;
+            case WREN_RESULT_SUCCESS: Logger::Trace(mLogCat, "Snippet %s run successfully", name.c_str()); break;
+        }
+    }
+
+    
     void WrenState::WriteFN(WrenVM* vm, const char* text)
     {
         std::string final = String::TrimEnd(text, "\n");

src/scripting/wren_state.h

@@ -29,6 +29,7 @@ namespace lunarium
         u32 GetLogCat() const;
 
         void RunScript(WrenScript* script);
+        void RunSnippet(std::string name, std::string code);
 
     // CALL BACKS
     static void WriteFN(WrenVM* vm, const char* text);

src/world/world.cpp

@@ -10,17 +10,18 @@
 ******************************************************************************/
 
 #include "world.h"
+#include <LunariumConfig.h>
 #include <utils/logger.h>
+#include <utils/helpers.h>
 #include <assets/types/script.h>
 #include <assets/types/image.h>
 #include <renderer/renderer2D.h>
 #include <renderer/frame_buffer.h>
 #include <renderer/orthographic_camera.h>
 #include "entity.h"
-#include <scripting/wren_script.h>
 
-#define LOAD_ASSETS_FROM_EDITOR true
-#if LOAD_ASSETS_FROM_EDITOR
+//#define LOAD_ASSETS_FROM_EDITOR true
+#if !BUILD_NO_EDITOR
     #include <editor/contents/content_manager.h>
     #include <editor/contents/script.h>
 #endif
@@ -34,26 +35,55 @@ namespace lunarium
     // }
 
     World::World(std::string name)
-        : mUUID(UUID::GetNewID()), mName(name), mpActiveCamera(nullptr), mFrameBuffer(nullptr),
-            mGetAssetsFromEditor(LOAD_ASSETS_FROM_EDITOR)
+        : mUUID(UUID::GetNewID()), mName(name), mpActiveCamera(nullptr), mFrameBuffer(nullptr)
+                //mGetAssetsFromEditor(EDITOR_MODE)
     {
-        InitScriptState();
     }
 
     
     void World::InitScriptState()
     {
         mScriptState.Initialize().LogIfFailed(LogCategory::GAME_SYSTEM, "Failed to initialize the world script state");
+
+        // TODO: Load the world interface script
+        mWorldInterface.SetModuleName("WorldInterface");
+        std::string code = File::ReadTextFile("world_interface.wren");  // This will eventually move to internal data
+        mWorldInterface.SetScriptCode(code);
+
+        mScriptState.RunScript(&mWorldInterface);
+        mScriptState.RunSnippet("WorldInterface", "WorldInterface.Init()");
     }
 
     void World::OnLoad()
     {
-        // TODO: Call OnLoad in the world script and on each region script
+        InitScriptState();
+
+        // Load scripts from all ScriptComponents in the world
+         auto group_scripts = mECSRegistry.view<ScriptComponent>();
+        for(auto entity: group_scripts) 
+        {
+            auto& script_comp = group_scripts.get<ScriptComponent>(entity);
+
+// If were attached to the editor we need to get the script from the editor's content manager
+#if !BUILD_NO_EDITOR
+
+            editor::Script* pScript = (editor::Script*) editor::ContentManager::GetInstance().GetAsset(script_comp.ScriptID);
+
+            WrenScript script(pScript->GetScriptFile().filename().string().c_str(), pScript->GetScript());
+
+            mScriptState.RunScript(&script);
+#endif
+        }
+
+        // Call OnLoad for each registered EntityBehavior class object
+        mScriptState.RunSnippet("WorldInterface", "WorldInterface.DoOnLoad()");
     }
     
     void World::OnUnload()
     {
-        // TODO: Call OnUnLoad in the world script and on each region script
+        // TODO: Call OnUnLoad for each registered EntityBehavior class object
+        mScriptState.RunSnippet("WorldInterface", "WorldInterface.DoOnUnload()");
+        mScriptState.Shutdown();
     }
 
     void World::SetRunMode(RunMode mode)
@@ -69,20 +99,12 @@ namespace lunarium
     void World::Update(float dt)
     {
         // Update all scripts
-        auto group_scripts = mECSRegistry.view<ScriptComponent>();
-        for(auto entity: group_scripts) 
-        {
-            auto& script_comp = group_scripts.get<ScriptComponent>(entity);
-
-#if LOAD_ASSETS_FROM_EDITOR
+        // Call OnUpdate for each registered EntityBehavior class object
+        std::string code = "WorldInterface.Update(";
+        code.append(std::to_string(dt));
+        code.append(")");
+        mScriptState.RunSnippet("WorldInterface", code);
        
-            editor::Script* pScript = (editor::Script*) editor::ContentManager::GetInstance().GetAsset(script_comp.ScriptID);
-
-            WrenScript script(pScript->GetScriptFile().filename().string().c_str(), pScript->GetScript());
-
-            mScriptState.RunScript(&script);
-#endif
-        }
 
 
         // Update Transforms for any enity with a velocity

src/world/world.h

@@ -16,6 +16,7 @@
 #include <core/types.h>
 #include <assets/serializing/json_serializable.h>
 #include <scripting/wren_state.h>
+#include <scripting/wren_script.h>
 #include <utils/op_res.h>
 #include <entt/entt.hpp>
 #include "components.h"
@@ -105,6 +106,7 @@ namespace lunarium
         LUUID mUUID;
         std::string mName;
         WrenState mScriptState;
+        WrenScript mWorldInterface;
 
         // State critical Data
         entt::registry mECSRegistry;
@@ -123,7 +125,7 @@ namespace lunarium
 
 
         // TEST STUFF
-        bool mGetAssetsFromEditor;  // This is for testing until we get a proper asset manager
+        //bool mGetAssetsFromEditor;  // This is for testing until we get a proper asset manager
         
     private: // HELPERS
         void InitScriptState();

test_data/world_interface.wren

@@ -0,0 +1,58 @@
+/******************************************************************************
+*	File		-	world_interface.wren
+*	Author		-	Joey Pollack
+*	Date		-	2022/11/16 (y/m/d)
+*	Mod Date	-	2022/11/16 (y/m/d)
+*	Description	-	The main interface for scripts to interact with the game world
+******************************************************************************/
+
+// Manages all of the EntityBehaviors
+class WorldInterface {
+
+     static Init() {
+        __Behaviors = []
+        System.print("WorldInterface initialized")
+    }
+
+    static RegisterBehavior(behavior) {
+        __Behaviors.add(behavior)
+        // behavior.OnLoad()
+    }
+
+    static DoOnLoad() {
+        for (behavior in __Behaviors) {
+            behavior.OnLoad()
+        }
+    }
+
+    static DoOnUnload() {
+        for (behavior in __Behaviors) {
+            behavior.OnUnload()
+        }
+    }
+
+    static Update(dt) {
+        //System.print("Updating %(__Behaviors.count) behaviors...")
+        for (behavior in __Behaviors) {
+            behavior.Update(dt)
+        }
+    }
+}
+
+
+
+class EntityBehavior {
+    OnLoad() {
+
+    }
+
+    OnUnload() {
+
+    }
+
+    Update(dt) {
+
+    }
+}
+
+//WorldInterface.Init()