SHADE_Engine/src/Animation/SHAnimationController.cpp

@@ -17,6 +17,52 @@ of DigiPen Institute of Technology is prohibited.
 
 namespace SHADE
 {
+  /*-----------------------------------------------------------------------------------*/
+  /* AnimParam Functions                                                               */
+  /*-----------------------------------------------------------------------------------*/
+  SHAnimationController::AnimParam::AnimParam(Type type)
+  : ParamType { type }
+  {
+    switch (ParamType)
+    {
+      case Type::Bool:
+        Value = false;
+        break;
+      case Type::Float:
+        Value = 0.0f;
+        break;
+      case Type::Int:
+        Value = 0;
+        break;
+    }
+  }
+
+  /*-----------------------------------------------------------------------------------*/
+  /* Transition - Usage Functions                                                      */
+  /*-----------------------------------------------------------------------------------*/
+  bool SHAnimationController::Transition::EvaluateCondition(const AnimParam& testParam) const noexcept
+  {
+    // Don't match, instant fail
+    if (testParam.ParamType != Param.ParamType)
+      return false;
+
+    // Evaluate them accordingly
+    switch (Param.ParamType)
+    {
+      case AnimParam::Type::Bool:
+      case AnimParam::Type::Trigger:
+        return evaluateCondition(std::get<bool>(testParam.Value));
+      case AnimParam::Type::Float:
+        return evaluateCondition(std::get<float>(testParam.Value));
+        break;
+      case AnimParam::Type::Int:
+        return evaluateCondition(std::get<int>(testParam.Value));
+        break;
+    }
+
+    return false;
+  }
+
   /*-----------------------------------------------------------------------------------*/
   /* Lifecycle Functions                                                               */
   /*-----------------------------------------------------------------------------------*/
@@ -38,7 +84,33 @@ namespace SHADE
       // Go to next state
       for (const auto& transition : instData.CurrentNode->Transitions)
       {
-        // TODO
+        // Check for no condition special case
+        if (transition.Condition == Transition::ConditionType::None)
+        {
+          changeNode(instData, transition.Target);
+          break;
+        }
+        else
+        {
+          // Check if we have the parameter
+          if (!instData.Params.contains(transition.ParamName))
+            continue;
+
+          // If evaluation success, we transition
+          AnimParam& param = instData.Params[transition.ParamName];
+          if (transition.EvaluateCondition(param))
+          {
+            changeNode(instData, transition.Target);
+
+            // If trigger, we need to unset it
+            if (param.ParamType == AnimParam::Type::Trigger)
+            {
+              param.Value = false;
+            }
+
+            break;
+          }
+        }
       }
     }
   }
@@ -83,22 +155,11 @@ namespace SHADE
   }
   
   /*-----------------------------------------------------------------------------------*/
-  /* AnimParam Functions                                                               */
+  /* Helper Functions                                                                  */
   /*-----------------------------------------------------------------------------------*/
-  SHAnimationController::AnimParam::AnimParam(Type type)
+  void SHAnimationController::changeNode(InstanceData& instData, Handle<Node> newNode)
-  : ParamType { type }
   {
-    switch (ParamType)
+    instData.CurrentNode = newNode;
-    {
+    instData.ClipPlaybackTime = 0.0f;
-      case Type::Bool:
-        Value = false;
-        break;
-      case Type::Float:
-        Value = 0.0f;
-        break;
-      case Type::Int:
-        Value = 0;
-        break;
-    }
   }
 }

SHADE_Engine/src/Animation/SHAnimationController.h

@@ -55,7 +55,7 @@ namespace SHADE
       enum class Type
       {
         Bool,
-        Trigger,
+        Trigger, // Variant of bool that can only be set to true and will be unset when consumed.
         Float,
         Int
       };
@@ -69,7 +69,7 @@ namespace SHADE
       /// on the specified type.
       /// </summary>
       /// <param name="type">Type of AnimParam.</param>
-      explicit AnimParam(Type type);
+      explicit AnimParam(Type type = Type::Int);
 
       /*-------------------------------------------------------------------------------*/
       /* Data Members                                                                  */
@@ -104,8 +104,26 @@ namespace SHADE
       /* Data Members                                                                  */
       /*-------------------------------------------------------------------------------*/
       ConditionType Condition;
-      AnimParam::ValueType Threshold;
+      AnimParam     Param;
+      std::string   ParamName;
       Handle<Node>  Target;
+
+      /*-------------------------------------------------------------------------------*/
+      /* Usage Functions                                                               */
+      /*-------------------------------------------------------------------------------*/
+      /// <summary>
+      /// Checks the condition of this Transition against an animation paramter.
+      /// </summary>
+      /// <param name="testParam">Parameter to test with.</param>
+      /// <returns>Whether the condition passed.</returns>
+      bool EvaluateCondition(const AnimParam& testParam) const noexcept;
+
+      private:
+      /*-------------------------------------------------------------------------------*/
+      /* Helper Functions                                                              */
+      /*-------------------------------------------------------------------------------*/
+      template<typename T>
+      bool evaluateCondition(T value) const noexcept;
     };
     
     /// <summary>
@@ -167,5 +185,12 @@ namespace SHADE
     Handle<Node> startNode;
     std::vector<Handle<Node>> nodes;
     std::unordered_map<std::string, AnimParam::Type> parameters;
+
+    /*---------------------------------------------------------------------------------*/
+    /* Helper Functions                                                                */
+    /*---------------------------------------------------------------------------------*/
+    void changeNode(InstanceData& instData, Handle<Node> newNode);
   };
 }
+
+#include "SHAnimationController.hpp"

SHADE_Engine/src/Animation/SHAnimationController.hpp

@@ -0,0 +1,67 @@
+/************************************************************************************//*!
+\file           SHAnimationController.hpp
+\author         Tng Kah Wei, kahwei.tng, 390009620
+\par            email: kahwei.tng\@digipen.edu
+\date           Mar 1, 2023
+\brief          Contains the definition of template functions SHAnimationController.
+
+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
+#include "SHAnimationController.h"
+
+namespace SHADE
+{
+  template<typename T>
+  bool SHAnimationController::Transition::evaluateCondition(T value) const noexcept
+  {
+    // Early failure if invalid data
+    if (!std::holds_alternative<T>(Param.Value))
+      return false;
+
+    // Get the value
+    const T PARAM_VAL = std::get<T>(Param.Value);
+
+    // Handle condition type
+    switch (Condition)
+    {
+      case SHAnimationController::Transition::ConditionType::None:
+        return true;
+      case SHAnimationController::Transition::ConditionType::Equals:
+        if constexpr (std::is_floating_point_v<T>)
+        {
+          static constexpr T EPSILON = static_cast<T>(0.001);
+          return std::abs(std::abs(value) - std::abs(PARAM_VAL)) < EPSILON;
+        }
+        else
+        {
+          return value == PARAM_VAL;
+        }
+        break;
+      case SHAnimationController::Transition::ConditionType::NotEquals:
+        if constexpr (std::is_floating_point_v<T>)
+        {
+          static constexpr T EPSILON = static_cast<T>(0.001);
+          return std::abs(std::abs(value) - std::abs(PARAM_VAL)) > EPSILON;
+        }
+        else
+        {
+          return value != PARAM_VAL;
+        }
+        break;
+      case SHAnimationController::Transition::ConditionType::LessThan:
+        return PARAM_VAL < value;
+      case SHAnimationController::Transition::ConditionType::LessThanOrEqual:
+        return PARAM_VAL <= value;
+      case SHAnimationController::Transition::ConditionType::GreaterThan:
+        return PARAM_VAL > value;
+      case SHAnimationController::Transition::ConditionType::GreaterThanOrEqual:
+        return PARAM_VAL >= value;
+    }
+
+    // Neither of the existing cases
+    return false;
+  }
+}

SHADE_Engine/src/Graphics/MiddleEnd/Textures/SHTextureLibrary.h

@@ -71,7 +71,7 @@ namespace SHADE
         //! of the texture library would mean the recreation of the desc set that also
         //! involves the generic data, which is bad bad bad. Solution is to separate the
         //! 2 desc sets. 
-        static constexpr uint32_t DEFAULT_MAX_TEXTURES = 2000;
+        static constexpr uint32_t DEFAULT_MAX_TEXTURES = 1000;
 
         /*-----------------------------------------------------------------------------*/
         /* Usage Functions                                                             */