Merge pull request #236 from SHADE-DP/SP3-6-c-scripting

Added GameObject.Null and Enabling/Disabling of Scripts

SHADE_Engine/src/Editor/SHEditorUI.cpp

@@ -155,16 +155,23 @@ namespace SHADE
   }
 
   bool SHEditorUI::InputCheckbox(const std::string& label, bool& value, bool* isHovered)
+  {
+    if (!label.empty())
     {
       ImGui::Text(label.c_str());
+      ImGui::SameLine();
+    }
     if (isHovered)
       *isHovered = ImGui::IsItemHovered();
-    ImGui::SameLine();
     return ImGui::Checkbox("##", &value);
   }
   bool SHEditorUI::InputInt(const std::string& label, int& value, bool* isHovered)
+  {
+    if (!label.empty())
     {
       ImGui::Text(label.c_str());
+      ImGui::SameLine();
+    }
     if (isHovered)
       *isHovered = ImGui::IsItemHovered();
     ImGui::SameLine();
@@ -177,7 +184,11 @@ namespace SHADE
   bool SHEditorUI::InputUnsignedInt(const std::string& label, unsigned int& value, bool* isHovered)
   {
     int signedVal = static_cast<int>(value);
+    if (!label.empty())
+    {
       ImGui::Text(label.c_str());
+      ImGui::SameLine();
+    }
     if (isHovered)
       *isHovered = ImGui::IsItemHovered();
     ImGui::SameLine();
@@ -190,8 +201,12 @@ namespace SHADE
     return CHANGED;
   }
   bool SHEditorUI::InputFloat(const std::string& label, float& value, bool* isHovered)
+  {
+    if (!label.empty())
     {
       ImGui::Text(label.c_str());
+      ImGui::SameLine();
+    }
     if (isHovered)
       *isHovered = ImGui::IsItemHovered();
     ImGui::SameLine();
@@ -212,8 +227,12 @@ namespace SHADE
     return CHANGED;
   }
   bool SHEditorUI::InputSlider(const std::string& label, int min, int max, int& value, bool* isHovered /*= nullptr*/)
+  {
+    if (!label.empty())
     {
       ImGui::Text(label.c_str());
+      ImGui::SameLine();
+    }
     if (isHovered)
       *isHovered = ImGui::IsItemHovered();
     ImGui::SameLine();
@@ -235,8 +254,12 @@ namespace SHADE
   }
 
   bool SHEditorUI::InputSlider(const std::string& label, float min, float max, float& value, bool* isHovered)
+  {
+    if (!label.empty())
     {
       ImGui::Text(label.c_str());
+      ImGui::SameLine();
+    }
     if (isHovered)
       *isHovered = ImGui::IsItemHovered();
     ImGui::SameLine();
@@ -272,7 +295,11 @@ namespace SHADE
   {
     std::array<char, TEXT_FIELD_MAX_LENGTH> buffer = { '\0' };
     strcpy_s(buffer.data(), TEXT_FIELD_MAX_LENGTH, value.c_str());
+    if (!label.empty())
+    {
       ImGui::Text(label.c_str());
+      ImGui::SameLine();
+    }
     if (isHovered)
       *isHovered = ImGui::IsItemHovered();
     ImGui::SameLine();
@@ -285,8 +312,12 @@ namespace SHADE
   }
 
   bool SHEditorUI::InputGameObjectField(const std::string& label, uint32_t& value, bool* isHovered, bool alwaysNull)
+  {
+    if (!label.empty())
     {
       ImGui::Text(label.c_str());
+      ImGui::SameLine();
+    }
     if (isHovered)
       *isHovered = ImGui::IsItemHovered();
     ImGui::SameLine();
@@ -326,7 +357,11 @@ namespace SHADE
     const std::string& INITIAL_NAME = v >= static_cast<int>(enumNames.size()) ? "Unknown" : enumNames[v];
     bool b = false;
 
+    if (!label.empty())
+    {
       ImGui::Text(label.c_str());
+      ImGui::SameLine();
+    }
     if (isHovered)
       *isHovered = ImGui::IsItemHovered();
     ImGui::SameLine();

SHADE_Managed/src/Editor/Editor.cxx

@@ -117,6 +117,12 @@ namespace SHADE
 
         // Header
         SHEditorUI::PushID(index);
+        bool enabled = script->Enabled;
+        if (SHEditorUI::InputCheckbox("", enabled))
+        {
+            script->Enabled = enabled;
+        }
+        SHEditorUI::SameLine();
         if (SHEditorUI::CollapsingHeader(LABEL))
         {
             SHEditorUI::PushID(LABEL);

SHADE_Managed/src/Engine/GameObject.cxx

@@ -54,6 +54,14 @@ namespace SHADE
         return GameObject(ENTITY_ID);
     }
 
+    /*---------------------------------------------------------------------------------*/
+    /* Static Properties                                                               */
+    /*---------------------------------------------------------------------------------*/
+    GameObject GameObject::Null::get()
+    {
+        return GameObject();
+    }
+
     /*---------------------------------------------------------------------------------*/
     /* Properties                                                                      */
     /*---------------------------------------------------------------------------------*/

SHADE_Managed/src/Engine/GameObject.hxx

@@ -62,6 +62,17 @@ namespace SHADE
         /// <returns>GameObject that has the specified name. Null if not found.</returns>
         static System::Nullable<GameObject> Find(System::String^ name);
 
+        /*-----------------------------------------------------------------------------*/
+        /* Static Properties                                                           */
+        /*-----------------------------------------------------------------------------*/
+        /// <summary>
+        /// Default empty GameObject.
+        /// </summary>
+        static property GameObject Null
+        {
+            GameObject get();
+        }
+
         /*-----------------------------------------------------------------------------*/
         /* Properties                                                                  */
         /*-----------------------------------------------------------------------------*/

SHADE_Managed/src/Scripts/Script.cxx

@@ -22,6 +22,36 @@ of DigiPen Institute of Technology is prohibited.
 
 namespace SHADE
 {
+    /*---------------------------------------------------------------------------------*/
+    /* Properties                                                                      */
+    /*---------------------------------------------------------------------------------*/
+    GameObject Script::Owner::get()
+    {
+        return owner;
+    }
+    GameObject Script::GameObject::get()
+    {
+        return owner;
+    }
+    bool Script::Enabled::get()
+    {
+        return enabled;
+    }
+    void Script::Enabled::set(bool value)
+    {
+        // Same, don't set
+        if (value == enabled)
+            return;
+
+        enabled = value;
+
+        // There's a change, so call the appropriate function
+        if (enabled)
+            OnEnable();
+        else
+            OnDisable();
+    }
+
     /*---------------------------------------------------------------------------------*/
     /* Component Access Functions                                                      */
     /*---------------------------------------------------------------------------------*/
@@ -104,11 +134,10 @@ namespace SHADE
     /*---------------------------------------------------------------------------------*/
     /* "All-time" Lifecycle Functions                                                  */
     /*---------------------------------------------------------------------------------*/
-    void Script::Initialize(GameObject newOwner)
+    void Script::Initialize(SHADE::GameObject newOwner)
     {
         owner = newOwner;
     }
-
     void Script::OnAttached()
     {
         SAFE_NATIVE_CALL_BEGIN
@@ -131,6 +160,12 @@ namespace SHADE
         awake();
         SAFE_NATIVE_CALL_END(this)
     }
+    void Script::OnEnable()
+    {
+        SAFE_NATIVE_CALL_BEGIN
+        onEnable();
+        SAFE_NATIVE_CALL_END(this)
+    }
     void Script::Start()
     {
         SAFE_NATIVE_CALL_BEGIN
@@ -162,6 +197,12 @@ namespace SHADE
         onDrawGizmos();
         SAFE_NATIVE_CALL_END(this)
     }
+    void Script::OnDisable()
+    {
+        SAFE_NATIVE_CALL_BEGIN
+        onDisable();
+        SAFE_NATIVE_CALL_END(this)
+    }
     void Script::OnDestroy()
     {
         SAFE_NATIVE_CALL_BEGIN
@@ -228,6 +269,7 @@ namespace SHADE
     /* Virtual Lifecycle Functions                                                     */
     /*---------------------------------------------------------------------------------*/
     void Script::awake() {}
+    void Script::onEnable() {}
     void Script::start() {}
     void Script::fixedUpdate() {}
     void Script::update() {}
@@ -236,6 +278,7 @@ namespace SHADE
     {
         OnGizmosDrawOverriden = false;
     }
+    void Script::onDisable() {}
     void Script::onDestroy() {}
 
     /*---------------------------------------------------------------------------------*/

SHADE_Managed/src/Scripts/Script.hxx

@@ -38,11 +38,28 @@ namespace SHADE
         /* Properties                                                                  */
         /*-----------------------------------------------------------------------------*/
         /// <summary>
+        /// GameObject that this Script belongs to. This is a legacy interface, use
+        /// GameObject instead.
+        /// </summary>
+        [System::ObsoleteAttribute("Use GameObject instead.", false)]
+        property SHADE::GameObject Owner
+        {
+            SHADE::GameObject get();
+        }
+        /// <summary>
         /// GameObject that this Script belongs to.
         /// </summary>
-        property GameObject Owner
+        property SHADE::GameObject GameObject
         {
-            GameObject get() { return owner; }
+            SHADE::GameObject get();
+        }
+        /// <summary>
+        /// Whether or not this Script should have it's update functions be executed.
+        /// </summary>
+        property bool Enabled
+        {
+            bool get();
+            void set(bool value);
         }
 
         /*-----------------------------------------------------------------------------*/
@@ -127,7 +144,7 @@ namespace SHADE
         /// </summary>
         /// <typeparam name="T">
         /// Type of script to get.
-        /// This needs to be a default constructable Script.
+        /// This needs to be a default constructible Script.
         /// </typeparam>
         /// <returns>Reference to the script added</returns>
         generic<typename T> where T : ref class, Script
@@ -206,7 +223,7 @@ namespace SHADE
         /// <summary>
         /// Used to initialize a Script with a GameObject.
         /// </summary>
-        void Initialize(GameObject newOwner);
+        void Initialize(SHADE::GameObject newOwner);
         /// <summary>
         /// Used to call onAttached(). This is called immediately when this script is
         /// attached to a GameObject.
@@ -232,6 +249,11 @@ namespace SHADE
         /// </summary>
         void Start();
         /// <summary>
+        /// Used to call onEnable. This should be called right when a script is enabled
+        /// directly.
+        /// </summary>
+        void OnEnable();
+        /// <summary>
         /// Used to call fixedUpdate(). This should be called in sync with Physics
         /// update steps and thus in most cases will execute more than Update() will.
         /// This will be called immediately before a Physics update step.
@@ -253,6 +275,11 @@ namespace SHADE
         /// </summary>
         void OnDrawGizmos();
         /// <summary>
+        /// Used to call onDisable. This should be called right when a script is disabled
+        /// directly.
+        /// </summary>
+        void OnDisable();
+        /// <summary>
         /// Used to call onDestroy(). This should be called at the end of the frame
         /// where the attached GameObject or this script is destroyed directly or
         /// indirectly due to destruction of the owner.
@@ -329,6 +356,10 @@ namespace SHADE
         /// </summary>
         virtual void awake();
         /// <summary>
+        /// Called when this script is enabled.
+        /// </summary>
+        virtual void onEnable();
+        /// <summary>
         /// Called on the first frame that the attached GameObject is active but always
         /// after Awake().
         /// </summary>
@@ -353,6 +384,10 @@ namespace SHADE
         /// </summary>
         virtual void onDrawGizmos();
         /// <summary>
+        /// Called when this script is disabled.
+        /// </summary>
+        virtual void onDisable();
+        /// <summary>
         /// Called just before the end of the frame where the attached GameObject or
         /// this script is destroyed directly or indirectly due to destruction of the
         /// owner.
@@ -403,7 +438,8 @@ namespace SHADE
         /*-----------------------------------------------------------------------------*/
         /* Data Members                                                                */
         /*-----------------------------------------------------------------------------*/
-        GameObject owner;
+        SHADE::GameObject owner;
+        bool enabled = true;
     };
 
 }

SHADE_Managed/src/Scripts/ScriptStore.cxx

@@ -528,6 +528,7 @@ namespace SHADE
             ScriptList^ scripts = entity.Value;
             for (int i = 0; i < scripts->Count; ++i)
             {
+                if (scripts[i]->Enabled)
                     scripts[i]->FixedUpdate();
             }
         }
@@ -546,6 +547,7 @@ namespace SHADE
             ScriptList^ scripts = entity.Value;
             for (int i = 0; i < scripts->Count; ++i)
             {
+                if (scripts[i]->Enabled)
                     scripts[i]->Update();
             }
         }
@@ -564,6 +566,7 @@ namespace SHADE
             ScriptList^ scripts = entity.Value;
             for (int i = 0; i < scripts->Count; ++i)
             {
+                if (scripts[i]->Enabled)
                     scripts[i]->LateUpdate();
             }
         }
@@ -583,6 +586,7 @@ namespace SHADE
             ScriptList^ scripts = entity.Value;
             for (int i = 0; i < scripts->Count; ++i)
             {
+                if (scripts[i]->Enabled)
                     scripts[i]->OnDrawGizmos();
             }
         }