Added BlendTree that stores and blends multiple animations

2016-02-22 15:58:38 +01:00
parent 3c9c95cff4
commit abd36c81f8
20 changed files with 641 additions and 453 deletions
@@ -0,0 +1,75 @@
+#ifndef BlendTree_h__
+#define BlendTree_h__
+
+#include "Common.h"
+#include "../GLM.h"
+#include "Skeleton.h"
+#include "../Core/EntityWrapper.h"
+#include "../Core/World.h"
+#include <stack>
+
+class BlendTree
+{
+public:
+    enum class NodeType
+    {
+        Additive,
+        Blend,
+        Override,
+        Animation,
+    };
+
+
+    struct Node
+    {
+        std::string Name;
+        Node* Parent = nullptr;
+        Node* Child[2] = { nullptr, nullptr };
+        NodeType Type;
+        std::vector<glm::mat4> Pose;
+        float Weight = 0.f;
+
+        Node* Next() {
+            Node* next = this;
+
+            if (next->Child[1] == nullptr) {
+                // Node has no right child
+                next = this;
+                while (next->Parent != nullptr && next == next->Parent->Child[1]) {
+                    next = next->Parent;
+                }
+                next = next->Parent;
+            } else {
+                // Find the leftmost node in the right subtree
+                next = next->Child[1];
+                while (next->Child[0] != nullptr) {
+                    next = next->Child[0];
+                }
+            }
+
+            return next;
+
+        }
+    };
+
+  
+
+
+
+    BlendTree(EntityWrapper ModelEntity, Skeleton* skeleton);
+    ~BlendTree();
+
+    std::vector<glm::mat4> GetBoneTransforms(Skeleton* skeleton);
+
+    void PrintTree();
+
+private:
+    Node* m_Root = nullptr;
+
+    void FillTree(Node* parentNode, EntityWrapper parentEntity, Skeleton* skeleton);
+    BlendTree::Node* FillTreeByName(Node* parentNode, std::string name, EntityWrapper parentEntity, Skeleton* skeleton);
+
+    void Blend(Skeleton* skeleton, std::vector<glm::mat4>& pose);
+};
+
+#endif