SHADE_Engine/src/Editor/EditorWindow/Inspector/SHEditorInspector.cpp

@@ -180,6 +180,10 @@ namespace SHADE
         {
           DrawComponent(listenerComponent);
         }
+        if (auto trajectoryComponent = SHComponentManager::GetComponent_s<SHTrajectoryRenderableComponent>(eid))
+        {
+          DrawComponent(trajectoryComponent);
+        }
         ImGui::Separator();
         // Render Scripts
         SHScriptEngine* scriptEngine = static_cast<SHScriptEngine*>(SHSystemManager::GetSystem<SHScriptEngine>());
@@ -195,6 +199,7 @@ namespace SHADE
           DrawAddComponentButton<SHButtonComponent>(eid);
           DrawAddComponentButton<SHToggleButtonComponent>(eid);
           DrawAddComponentButton<SHSliderComponent>(eid);
+          DrawAddComponentButton<SHTrajectoryRenderableComponent>(eid);
 
           // Components that require Transforms
 

SHADE_Engine/src/Graphics/MiddleEnd/TrajectoryRendering/SHTrajectoryRenderableComponent.cpp

@@ -42,16 +42,26 @@ namespace SHADE
     return mesh;
   }
 
-  SHVec4 const& SHTrajectoryRenderableComponent::GetStartColor(void) const noexcept
+  SHVec3 const& SHTrajectoryRenderableComponent::GetStartColor(void) const noexcept
   {
     return startColor;
   }
 
-  SHVec4 const& SHTrajectoryRenderableComponent::GetEndColor(void) const noexcept
+  SHVec3 const& SHTrajectoryRenderableComponent::GetEndColor(void) const noexcept
   {
     return endColor;
   }
 
+  float SHTrajectoryRenderableComponent::GetStartAlpha(void) const noexcept
+  {
+    return startAlpha;
+  }
+
+  float SHTrajectoryRenderableComponent::GetEndAlpha(void) const noexcept
+  {
+    return endAlpha;
+  }
+
   float SHTrajectoryRenderableComponent::GetColorEvolveRate(void) const noexcept
   {
     return colorEvolveRate;
@@ -67,17 +77,27 @@ namespace SHADE
     positions = inPositions;
   }
 
-  void SHTrajectoryRenderableComponent::SetStartColor(SHVec4 color) noexcept
+  void SHTrajectoryRenderableComponent::SetStartColor(SHVec3 color) noexcept
   {
     startColor = color;
   }
 
-  void SHTrajectoryRenderableComponent::SetEndColor(SHVec4 color) noexcept
+  void SHTrajectoryRenderableComponent::SetEndColor(SHVec3 color) noexcept
   {
     endColor = color;
 
   }
 
+  void SHTrajectoryRenderableComponent::SetStartAlpha(float a) noexcept
+  {
+    startAlpha = a;
+  }
+
+  void SHTrajectoryRenderableComponent::SetEndAlpha(float a) noexcept
+  {
+    endAlpha = a;
+  }
+
   void SHTrajectoryRenderableComponent::SetColorEvolveRate(float rate) noexcept
   {
     colorEvolveRate = rate;

SHADE_Engine/src/Graphics/MiddleEnd/TrajectoryRendering/SHTrajectoryRenderableComponent.h

@@ -10,7 +10,7 @@ namespace SHADE
 {
   class SHMesh;
 
-  class SHTrajectoryRenderableComponent : public SHComponent
+  class SH_API SHTrajectoryRenderableComponent : public SHComponent
   {
   private:
 
@@ -21,10 +21,16 @@ namespace SHADE
     std::vector<SHVec3> positions;
 
     //! Starting color of the trajectory
-    SHVec4 startColor;
+    SHVec3 startColor;
 
     //! Color the trajectory should evolve to the longer it is
-    SHVec4 endColor;
+    SHVec3 endColor;
+
+    //! Starting alpha of the trajectory
+    float startAlpha;
+
+    //! end alpha of the trajectory
+    float endAlpha;
 
     //! evolving rate of the color
     float colorEvolveRate;
@@ -35,14 +41,18 @@ namespace SHADE
     /*-----------------------------------------------------------------------*/
     void SetMesh(Handle<SHMesh> newMesh) noexcept;
     void SetPositions (std::vector<SHVec3> const& inPositions) noexcept;
-    void SetStartColor(SHVec4 startColor) noexcept;
-    void SetEndColor  (SHVec4 endColor) noexcept;
+    void SetStartColor(SHVec3 startColor) noexcept;
+    void SetEndColor  (SHVec3 endColor) noexcept;
+    void SetStartAlpha(float a) noexcept;
+    void SetEndAlpha  (float a) noexcept;
     void SetColorEvolveRate(float rate) noexcept;
 
     std::vector<SHVec3> GetPositions       (void) const noexcept;
     Handle<SHMesh>      GetMesh            (void) const noexcept;
-    SHVec4 const&       GetStartColor      (void) const noexcept;
-    SHVec4 const&       GetEndColor        (void) const noexcept;
+    SHVec3 const&       GetStartColor      (void) const noexcept;
+    SHVec3 const&       GetEndColor        (void) const noexcept;
+    float               GetStartAlpha      (void) const noexcept;
+    float               GetEndAlpha        (void) const noexcept;
     float               GetColorEvolveRate (void) const noexcept;
 
     void OnCreate(void) override final;

SHADE_Engine/src/Graphics/MiddleEnd/TrajectoryRendering/SHTrajectoryRenderingSubSystem.cpp

@@ -59,8 +59,8 @@ namespace SHADE
           .srcColorBlendFactor = vk::BlendFactor::eSrcAlpha,
           .dstColorBlendFactor = vk::BlendFactor::eOneMinusSrcAlpha,
           .colorBlendOp = vk::BlendOp::eAdd,
-          .srcAlphaBlendFactor = vk::BlendFactor::eOne,
-          .dstAlphaBlendFactor = vk::BlendFactor::eZero,
+          .srcAlphaBlendFactor = vk::BlendFactor::eSrcAlpha,
+          .dstAlphaBlendFactor = vk::BlendFactor::eOneMinusSrcAlpha,
           .alphaBlendOp = vk::BlendOp::eAdd,
           .colorWriteMask = vk::ColorComponentFlagBits::eR | vk::ColorComponentFlagBits::eG | vk::ColorComponentFlagBits::eB | vk::ColorComponentFlagBits::eA,
         }
@@ -88,8 +88,8 @@ namespace SHADE
         if (transform)
         {
           // convenient variable
-          SHVec4 const& startColor = comp.GetStartColor();
-          SHVec4 const& endColor = comp.GetEndColor();
+          SHVec3 const& startColor = comp.GetStartColor();
+          SHVec3 const& endColor = comp.GetEndColor();
           float colorEvolveRate = comp.GetColorEvolveRate();
 
           // trs to be reused
@@ -118,7 +118,8 @@ namespace SHADE
             colorData.push_back(currentColor);
 
             // evolve color
-            currentColor = SHVec4::Lerp(startColor, endColor, lerpValue);
+            currentColor = SHVec3::Lerp(startColor, endColor, lerpValue);
+            currentColor.w = SHMath::Lerp (comp.GetStartAlpha(), comp.GetEndAlpha(), lerpValue);
 
             // evolve lerp value and clamp to 1
             lerpValue = std::max (1.0f, lerpValue + colorEvolveRate);

SHADE_Engine/src/Serialization/SHYAMLConverters.h

@@ -15,6 +15,7 @@
 #include "Graphics/MiddleEnd/TextRendering/SHFont.h"
 #include "Animation/SHAnimatorComponent.h"
 #include "Physics/Collision/CollisionTags/SHCollisionTagMatrix.h"
+#include "Graphics/MiddleEnd/TrajectoryRendering/SHTrajectoryRenderableComponent.h"
 
 namespace YAML
 {
@@ -424,4 +425,37 @@ namespace YAML
     }
   };
 
+  template<>
+  struct convert<SHTrajectoryRenderableComponent>
+  {
+    static constexpr std::string_view MESH_YAML_TAG = "Mesh";
+    static constexpr std::string_view START_COLOR_YAML_TAG = "Start Color";
+    static constexpr std::string_view END_COLOR_YAML_TAG = "End Color";
+    static constexpr std::string_view COLOR_EVAL_RATE_YAML_TAG = "Color Eval Rate ";
+
+    static YAML::Node encode(SHTrajectoryRenderableComponent const& rhs)
+    {
+      YAML::Node node;
+      node[MESH_YAML_TAG.data()] = SHResourceManager::GetAssetID<SHMesh>(rhs.GetMesh()).value_or(0);
+      node[START_COLOR_YAML_TAG.data()] = SHVec3(rhs.GetStartColor());
+      node[END_COLOR_YAML_TAG.data()] = SHVec3(rhs.GetEndColor());
+      node[COLOR_EVAL_RATE_YAML_TAG.data()] = rhs.GetColorEvolveRate();
+
+      return node;
+    }
+    static bool decode(YAML::Node const& node, SHTrajectoryRenderableComponent& rhs)
+    {
+      if (node[MESH_YAML_TAG.data()].IsDefined())
+        rhs.SetMesh(SHResourceManager::LoadOrGet<SHMesh>(node[MESH_YAML_TAG.data()].as<AssetID>()));
+      if (node[START_COLOR_YAML_TAG.data()].IsDefined())
+        rhs.SetStartColor(node[START_COLOR_YAML_TAG.data()].as<SHVec3>());
+      if (node[END_COLOR_YAML_TAG.data()].IsDefined())
+        rhs.SetEndColor(node[END_COLOR_YAML_TAG.data()].as<SHVec3>());
+      if (node[COLOR_EVAL_RATE_YAML_TAG.data()].IsDefined())
+        rhs.SetColorEvolveRate(node[COLOR_EVAL_RATE_YAML_TAG.data()].as<float>());
+
+      return true;
+    }
+  };
+
 }

SHADE_Managed/src/Components/TrajectoryRenderable.cxx

@@ -0,0 +1,83 @@
+#include "SHpch.h"
+
+#include "TrajectoryRenderable.hxx"
+#include "Assets/NativeAsset.hxx"
+#include "Utility/Convert.hxx"
+
+
+namespace SHADE
+{
+  TrajectoryRenderable::TrajectoryRenderable(Entity entity)
+    :Component(entity)
+  {
+
+  }
+
+  MeshAsset TrajectoryRenderable::Mesh::get()
+  {
+    auto mesh = GetNativeComponent()->GetMesh();
+    return mesh ? MeshAsset(mesh) : MeshAsset();
+  }
+  void TrajectoryRenderable::Mesh::set(MeshAsset value)
+  {
+    if (value)
+    {
+      GetNativeComponent()->SetMesh(Handle<SHMesh>());
+    }
+    else
+    {
+      GetNativeComponent()->SetMesh(value.NativeObject);
+    }
+  }
+
+
+  void TrajectoryRenderable::StartColor::set(Vector3 val)
+  {
+    GetNativeComponent()->SetStartColor(Convert::ToNative(val));
+  }
+
+  Vector3 TrajectoryRenderable::StartColor::get()
+  {
+    return Convert::ToCLI(GetNativeComponent()->GetStartColor());
+  }
+
+  void TrajectoryRenderable::EndColor::set(Vector3 val)
+  {
+    GetNativeComponent()->SetEndColor(Convert::ToNative(val));
+  }
+
+  Vector3 TrajectoryRenderable::EndColor::get()
+  {
+    return Convert::ToCLI(GetNativeComponent()->GetEndColor());
+  }
+
+  void TrajectoryRenderable::StartAlpha::set(float val)
+  {
+    GetNativeComponent()->SetStartAlpha(val);
+  }
+
+  float TrajectoryRenderable::StartAlpha::get()
+  {
+    return GetNativeComponent()->GetStartAlpha();
+  }
+
+  void TrajectoryRenderable::EndAlpha::set(float val)
+  {
+    GetNativeComponent()->SetEndAlpha(val);
+  }
+
+  float TrajectoryRenderable::EndAlpha::get()
+  {
+    return GetNativeComponent()->GetEndAlpha();
+  }
+
+  void TrajectoryRenderable::ColorEvolveRate::set(float val)
+  {
+    GetNativeComponent()->SetColorEvolveRate(val);
+  }
+
+  float TrajectoryRenderable::ColorEvolveRate::get()
+  {
+    return GetNativeComponent()->GetColorEvolveRate();
+  }
+}

SHADE_Managed/src/Components/TrajectoryRenderable.hxx

@@ -0,0 +1,87 @@
+/************************************************************************************//*!
+\file           TrajectoryRenderable.hxx
+\author         Brandon Mak, brandon.hao,
+\par            email: brandon.hao\@digipen.edu
+\date           1st March, 2023
+\brief          Contains the definition of the managed Renderable class with the
+                declaration of functions for working with it.
+
+                Note: This file is written in C++17/CLI.
+
+Copyright (C) 2022 DigiPen Institute of Technology.
+Reproduction or disclosure of this file or its contents without the prior written consent
+of DigiPen Institute of Technology is prohibited.
+*//*************************************************************************************/
+#pragma once
+
+// Project Includes
+#include "Components/Component.hxx"
+#include "Math/Quaternion.hxx"
+// External Dependencies
+#include "Graphics/MiddleEnd/TrajectoryRendering/SHTrajectoryRenderableComponent.h"
+#include "Graphics/Color.hxx"
+#include "Assets/MeshAsset.hxx"
+
+namespace SHADE
+{
+  /// <summary>
+  /// CLR version of the SHADE Engine's SHRenderableComponent.
+  /// </summary>
+  public ref class TrajectoryRenderable : public Component<SHTrajectoryRenderableComponent>
+  {
+  internal:
+    /*-----------------------------------------------------------------------------*/
+    /* Constructors                                                                */
+    /*-----------------------------------------------------------------------------*/
+    /// <summary>
+    /// Constructs a Trajectory Renderable Component that represents a native Trajectory Renderable 
+    /// component tied to the specified Entity.
+    /// </summary>
+    /// <param name="entity">Entity that this Component will be tied to.</param>
+    TrajectoryRenderable(Entity entity);
+
+  public:
+    /*-----------------------------------------------------------------------------*/
+    /* Properties                                                                  */
+    /*-----------------------------------------------------------------------------*/
+    /// <summary>
+    /// Mesh used to render this Renderable.
+    /// </summary>
+    property MeshAsset Mesh
+    {
+      MeshAsset get();
+      void set(MeshAsset value);
+    }
+
+    property Vector3 StartColor
+    {
+      Vector3 get();
+      void set (Vector3 val);
+    }
+
+    property Vector3 EndColor
+    {
+      Vector3 get();
+      void set(Vector3 val);
+    }
+
+    property float StartAlpha
+    {
+      float get();
+      void set (float val);
+    }
+
+    property float EndAlpha
+    {
+      float get();
+      void set(float val);
+    }
+
+    property float ColorEvolveRate
+    {
+      float get();
+      void set(float val);
+    }
+  };
+}
+

SHADE_Managed/src/Engine/ECS.cxx

@@ -46,6 +46,8 @@ of DigiPen Institute of Technology is prohibited.
 #include "Components\UIElement.hxx"
 #include "Components\Canvas.hxx"
 #include "Components\Slider.hxx"
+#include "Components\TrajectoryRenderable.hxx"
+#include "Graphics\MiddleEnd\TrajectoryRendering\SHTrajectoryRenderableComponent.h"
 
 
 
@@ -335,6 +337,7 @@ namespace SHADE
         componentMap.Add(createComponentSet<SHUIComponent, UIElement>());
         componentMap.Add(createComponentSet<SHCanvasComponent, Canvas>());
         componentMap.Add(createComponentSet<SHSliderComponent, Slider>());
+        componentMap.Add(createComponentSet<SHTrajectoryRenderableComponent, TrajectoryRenderable>());
     }
     
     /*---------------------------------------------------------------------------------*/