Split keyframes on animation editor into their constituents

# Conflicts:
#	SHADE_Engine/src/Animation/SHAnimationClip.h

SHADE_Engine/src/Animation/SHAnimationClip.h

@@ -60,6 +60,7 @@ namespace SHADE
     /// Constructs an SHAnimation Clip from a specified SHAnimAsset.
     /// </summary>
     /// <param name="asset">Animation asset to load.</param>
+    SHAnimationClip() = default;
     explicit SHAnimationClip(const SHAnimAsset& asset);
     
     /*---------------------------------------------------------------------------------*/
@@ -68,14 +69,16 @@ namespace SHADE
     const std::vector<Channel>& GetChannels() const noexcept { return channels; }
     int GetTicksPerSecond() const noexcept { return ticksPerSecond; }
     float GetTotalTime() const noexcept { return totalTime; }
+    int GetTotalFrames() const noexcept { return totalFrames; }
 
-    private:
+    //private:
     /*---------------------------------------------------------------------------------*/
     /* Data Members                                                                    */
     /*---------------------------------------------------------------------------------*/
     std::vector<Channel> channels;
     int ticksPerSecond;
     float totalTime;
+    int totalFrames;
 
     /*---------------------------------------------------------------------------------*/
     /* Helper Functions                                                                */

SHADE_Engine/src/Editor/EditorWindow/AnimationEditor/SHAnimationEditor.cpp

@@ -0,0 +1,194 @@
+/************************************************************************************//*!
+\file           SHAnimationClip.cpp
+\author         Tng Kah Wei, kahwei.tng, 390009620
+\par            email: kahwei.tng\@digipen.edu
+\date           Nov 20, 2022
+\brief          Contains the function definitions of the SHAnimationClip class.
+
+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.
+*//*************************************************************************************/
+// Pre-compiled Header
+#include "SHpch.h"
+// Primary Header
+#include "SHAnimationEditor.h"
+
+namespace SHADE
+{
+  /*-----------------------------------------------------------------------------------*/
+  /* Constructors                                                                      */
+  /*-----------------------------------------------------------------------------------*/
+  SHAnimationEditor::SHAnimationEditor()
+  : SHEditorWindow(ICON_MD_ANIMATION" Animation Editor", ImGuiWindowFlags_MenuBar)
+  {
+    // Construct a simple test clip
+    clip.channels.emplace_back
+    (
+      SHAnimationClip::Channel
+      {
+        .Name = "Child 1",
+        .PositionKeyFrames =
+        {
+          SHAnimationKeyFrame<SHVec3>
+          {
+            .FrameIndex = 0,
+            .Data       = SHVec3 { 1.0f, 0.0f, 0.0f }
+          },
+          SHAnimationKeyFrame<SHVec3>
+          {
+            .FrameIndex = 30,
+            .Data       = SHVec3 { 0.0f, 0.0f, 0.0f }
+          },
+          SHAnimationKeyFrame<SHVec3>
+          {
+            .FrameIndex = 60,
+            .Data       = SHVec3 { 1.0f, 0.0f, 0.0f }
+          }
+        }
+      }
+    );
+    clip.channels.emplace_back
+    (
+      SHAnimationClip::Channel
+      {
+        .Name = "Child 2",
+        .PositionKeyFrames =
+        {
+          SHAnimationKeyFrame<SHVec3>
+          {
+            .FrameIndex = 0,
+            .Data = SHVec3 { 1.0f, 0.0f, 0.0f }
+          },
+          SHAnimationKeyFrame<SHVec3>
+          {
+            .FrameIndex = 30,
+            .Data = SHVec3 { 0.0f, 0.0f, 0.0f }
+          }
+        }
+      }
+    );
+    clip.channels.emplace_back
+    (
+      SHAnimationClip::Channel
+      {
+        .Name = "Child 3",
+        .PositionKeyFrames =
+        {
+          SHAnimationKeyFrame<SHVec3>
+          {
+            .FrameIndex = 15,
+            .Data = SHVec3 { 1.0f, 0.0f, 0.0f }
+          },
+          SHAnimationKeyFrame<SHVec3>
+          {
+            .FrameIndex = 30,
+            .Data = SHVec3 { 0.0f, 0.0f, 0.0f }
+          },
+          SHAnimationKeyFrame<SHVec3>
+          {
+            .FrameIndex = 45,
+            .Data = SHVec3 { 1.0f, 0.0f, 0.0f }
+          }
+        }
+      }
+    );
+    clip.totalFrames = 60;
+    clip.totalTime = static_cast<float>(clip.totalFrames) / clip.GetTicksPerSecond();
+  }
+
+  
+  /*-----------------------------------------------------------------------------------*/
+  /* Editor Lifecycle                                                                  */
+  /*-----------------------------------------------------------------------------------*/
+  void SHAnimationEditor::Init()
+  {
+    SHEditorWindow::Init();
+  }
+  void SHAnimationEditor::Update()
+  {
+    SHEditorWindow::Update();
+
+    // Constants
+    static constexpr float CHANNELS_COL_WIDTH = 150.0f;
+    static constexpr float TMP_TABLE_PADDING = 50.0f;
+
+    // Render the window
+    if (Begin())
+    {
+      // Construct 2-column table of the channels on the left
+      if (ImGui::BeginTable("animWindowTable", 2, ImGuiTableFlags_None))
+      {
+        // Set up Columns
+        ImGui::TableSetupColumn("Channels", ImGuiTableColumnFlags_WidthFixed, CHANNELS_COL_WIDTH);
+        ImGui::TableSetupColumn("");
+
+        // Compute dimensions for the clip
+        const float COL_WIDTH = windowSize.x - CHANNELS_COL_WIDTH - TMP_TABLE_PADDING;
+        const float DIST_PER_FRAME = 18.0f;//COL_WIDTH / static_cast<float>(clip.GetTotalFrames()); // Hardcoded distance based on the keyframe icon size
+
+        // Get Resources
+        const auto WINDOW_POS = ImGui::GetWindowPos();
+        auto drawList = ImGui::GetForegroundDrawList();
+
+        // Render Header
+        ImGui::TableHeadersRow();
+        ImGui::SameLine();
+        const auto TIMELINE_HEADER_START_POS = ImGui::GetCursorPos();
+        static constexpr int STEP = 10;
+        for (int frame = 0; frame <= clip.GetTotalFrames(); frame += STEP)
+        {
+          const float X_OFFSET = TIMELINE_HEADER_START_POS.x + frame * DIST_PER_FRAME;
+          // Draw Text
+          ImGui::SetCursorPos(ImVec2(X_OFFSET, TIMELINE_HEADER_START_POS.y));
+          SHEditorUI::Text(std::to_string(frame)); 
+
+          // Draw line
+          ImVec2 startPoint { WINDOW_POS.x + X_OFFSET, WINDOW_POS.y + TIMELINE_HEADER_START_POS.y };
+          drawList->AddLine(startPoint, ImVec2(startPoint.x, startPoint.y + beginContentRegionAvailable.y), ImGui::GetColorU32(ImVec4(1.0f, 1.0f, 1.0f, 1.0f)));
+
+          // Draw smaller lines
+          for (int innerFrames = frame + 1; innerFrames < std::min(frame + STEP, clip.GetTotalFrames()); ++innerFrames)
+          {
+            ImVec2 innerStartPoint{ WINDOW_POS.x + TIMELINE_HEADER_START_POS.x + innerFrames * DIST_PER_FRAME, WINDOW_POS.y + TIMELINE_HEADER_START_POS.y };
+            drawList->AddLine(innerStartPoint, ImVec2(innerStartPoint.x, innerStartPoint.y + beginContentRegionAvailable.y), ImGui::GetColorU32(ImVec4(0.2f, 0.2f, 0.2f, 1.0f)));
+          }
+        }
+        ImGui::SetCursorPos(TIMELINE_HEADER_START_POS);
+
+        // Render all channels
+        for (const auto& channel : clip.channels)
+        {
+          ImGui::TableNextRow();
+          ImGui::TableNextColumn();
+          const bool SHOW_ALL = ImGui::CollapsingHeader(channel.Name.c_str(), ImGuiTreeNodeFlags_DefaultOpen);
+          ImGui::TableNextColumn();
+
+          if (SHOW_ALL)
+          {
+            drawChannelKeyFrames("Position", channel.PositionKeyFrames);
+            drawChannelKeyFrames("Rotation", channel.RotationKeyFrames);
+            drawChannelKeyFrames("Scale", channel.ScaleKeyFrames);
+          }
+          else
+          {
+            // TODO: Show flattened view
+          }
+        } 
+
+        ImGui::EndTable();
+      }
+
+    }
+    ImGui::End();
+  }
+
+  /*-----------------------------------------------------------------------------------*/
+  /* Usage Functions                                                                   */
+  /*-----------------------------------------------------------------------------------*/
+
+  /*-----------------------------------------------------------------------------------*/
+  /* Helper Functions                                                                  */
+  /*-----------------------------------------------------------------------------------*/
+
+}

SHADE_Engine/src/Editor/EditorWindow/AnimationEditor/SHAnimationEditor.h

@@ -0,0 +1,57 @@
+/************************************************************************************//*!
+\file           SHAnimationEditor.h
+\author         Tng Kah Wei, kahwei.tng, 390009620
+\par            email: kahwei.tng\@digipen.edu
+\date           Jan 8, 2023
+\brief          Contains the definition of the SHAnimationEditor class and related types.
+
+Copyright (C) 2023 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 "Editor/EditorWindow/SHEditorWindow.h"
+#include "Animation/SHAnimationClip.h"
+
+namespace SHADE
+{
+  /// <summary>
+  /// ImGui window that contains the SHAnimationEditor
+  /// </summary>
+  class SHAnimationEditor final : public SHEditorWindow
+  {
+    public:
+    /*---------------------------------------------------------------------------------*/
+    /* Constructor/Destructors                                                         */
+    /*---------------------------------------------------------------------------------*/
+    SHAnimationEditor();
+    virtual ~SHAnimationEditor() = default;
+
+    /*---------------------------------------------------------------------------------*/
+    /* Editor Lifecycle                                                                */
+    /*---------------------------------------------------------------------------------*/
+    void Init() override;
+    void Update() override;
+
+    private:
+    /*---------------------------------------------------------------------------------*/
+    /* Static Constants                                                                */
+    /*---------------------------------------------------------------------------------*/
+    static constexpr float DIST_PER_FRAME = 18.0f;
+
+    /*---------------------------------------------------------------------------------*/
+    /* Data Members                                                                    */
+    /*---------------------------------------------------------------------------------*/
+    SHAnimationClip clip;
+
+    /*---------------------------------------------------------------------------------*/
+    /* Helper Functions                                                                */
+    /*---------------------------------------------------------------------------------*/
+    template<typename T>
+    void drawChannelKeyFrames(const std::string& name, const std::vector<SHAnimationKeyFrame<T>>& keyframes);
+  };
+}
+
+#include "SHAnimationEditor.hpp"

SHADE_Engine/src/Editor/EditorWindow/AnimationEditor/SHAnimationEditor.hpp

@@ -0,0 +1,47 @@
+/************************************************************************************//*!
+\file           SHAnimationEditor.hpp
+\author         Tng Kah Wei, kahwei.tng, 390009620
+\par            email: kahwei.tng\@digipen.edu
+\date           Jan 16, 2023
+\brief          Contains the definition of the SHAnimationEditor function templates.
+
+Copyright (C) 2023 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
+// Primary Include
+#include "SHAnimationEditor.h"
+// Project Include
+#include "Editor/SHEditorUI.h"
+// External Dependencies
+#include <imgui.h>
+#include "Editor/IconsMaterialDesign.h"
+
+namespace SHADE
+{
+  template<typename T>
+  void SHAnimationEditor::drawChannelKeyFrames(const std::string& name, const std::vector<SHAnimationKeyFrame<T>>& keyframes)
+  {
+    // Ignore if keyframes list is empty
+    if (keyframes.empty())
+      return;
+
+    // Title
+    ImGui::TableNextRow();
+    ImGui::TableNextColumn();
+    ImGui::Indent();
+    ImGui::Text(name.c_str());
+    ImGui::Unindent();
+    ImGui::TableNextColumn();
+
+    // Draw all the keyframes
+    const auto START_POS = ImGui::GetCursorPos();
+    for (const auto& keyframe : keyframes)
+    {
+      ImGui::SetCursorPos(ImVec2(START_POS.x + keyframe.FrameIndex * DIST_PER_FRAME, START_POS.y));
+      SHEditorUI::OffsetText(ICON_MD_RADIO_BUTTON_CHECKED, 6.0f); // Hardcoded offset to align icon since ImGui can't calculate icon with properly
+    }
+    ImGui::SetCursorPos(START_POS);
+  }
+}

SHADE_Engine/src/Editor/SHEditor.cpp

@@ -31,6 +31,7 @@
 //#==============================================================#
 #include "EditorWindow/SHEditorWindowManager.h"
 #include "EditorWindow/SHEditorWindowIncludes.h"
+#include "EditorWindow/AnimationEditor/SHAnimationEditor.h"
 
 //#==============================================================#
 //||                      Library Includes                      ||
@@ -104,6 +105,7 @@ namespace SHADE
     SHEditorWindowManager::CreateEditorWindow<SHAssetBrowser>();
     SHEditorWindowManager::CreateEditorWindow<SHMaterialInspector>();
     SHEditorWindowManager::CreateEditorWindow<SHColliderTagPanel>();
+    SHEditorWindowManager::CreateEditorWindow<SHAnimationEditor>();
 
     SHEditorWindowManager::CreateEditorWindow<SHEditorViewport>();
 

SHADE_Engine/src/Editor/SHEditorUI.cpp

@@ -137,6 +137,18 @@ namespace SHADE
   {
     ImGui::Text(title.c_str());
   }
+
+  void SHEditorUI::CenteredText(const std::string& title)
+  {
+    OffsetText(title, -ImGui::CalcTextSize(title.c_str()).x * 1.5f);
+  }
+
+  void SHEditorUI::OffsetText(const std::string& title, float offset)
+  {
+    ImGui::SetCursorPosX(ImGui::GetCursorPosX() + offset);
+    ImGui::Text(title.c_str());
+  }
+
   bool SHEditorUI::SmallButton(const std::string& title)
   {
     return ImGui::SmallButton(title.c_str());

SHADE_Engine/src/Editor/SHEditorUI.h

@@ -90,7 +90,7 @@ namespace SHADE
     /// <returns>True if the header is open, false otherwise.</returns>
     static bool CollapsingHeader(const std::string& title, bool* isHovered = nullptr);
     static void SameLine();
-	static void Separator();
+	  static void Separator();
 
     /*-----------------------------------------------------------------------------*/
     /* ImGui Wrapper Functions - Queries                                           */
@@ -98,9 +98,9 @@ namespace SHADE
     static bool IsItemHovered();
 
     /*-----------------------------------------------------------------------------*/
-	/* ImGui Wrapper Functions - Menu                                              */
-	/*-----------------------------------------------------------------------------*/
-	static bool BeginMenu(const std::string& label);
+	  /* ImGui Wrapper Functions - Menu                                              */
+	  /*-----------------------------------------------------------------------------*/
+	  static bool BeginMenu(const std::string& label);
     static bool BeginMenu(const std::string& label, const char* icon);
     static void EndMenu();
     static void BeginTooltip();
@@ -150,6 +150,19 @@ namespace SHADE
     /// <param name="title">Text to display.</param>
     static void Text(const std::string& title);
     /// <summary>
+    /// Creates a visual text widget that is visually centered about the current
+    /// cursor point.
+    /// </summary>
+    /// <param name="title">Text to display.</param>
+    static void CenteredText(const std::string& title);
+    /// <summary>
+    /// Creates a visual text widget that is visually offset from the current cursor 
+    /// point.
+    /// </summary>
+    /// <param name="title">Text to display.</param>
+    /// <param name="offset">Distance to offset. Positive is to the right.</param>
+    static void OffsetText(const std::string& title, float offset);
+    /// <summary>
     /// Creates a small inline button widget.
     /// <br/>
     /// Wraps up ImGui::SmallButton().
@@ -164,8 +177,8 @@ namespace SHADE
     /// </summary>
     /// <param name="title">Text to display.</param>
     /// <returns>True if button was pressed.</returns>
-	static bool Button(const std::string& title);
-	static bool Selectable(const std::string& label);
+	  static bool Button(const std::string& title);
+	  static bool Selectable(const std::string& label);
     static bool Selectable(const std::string& label, const char* icon);
     /// <summary>
     /// Creates a checkbox widget for boolean input.
@@ -341,7 +354,6 @@ namespace SHADE
     /// <returns>Whether the value was modified.</returns>     
     static bool InputEnumCombo(const std::string& label, int& v, const std::vector<std::string>& enumNames, bool* isHovered = nullptr);
 
-
     private:
     // Prevent instantiation of this static class
     SHEditorUI() = delete;