add entity models rigging draft

src/objects/rigging.hpp

@@ -0,0 +1,34 @@
+#ifndef OBJECTS_SKELETON_HPP_
+#define OBJECTS_SKELETON_HPP_
+
+#include "../typedefs.hpp"
+
+#include <vector>
+#include <memory>
+#include <glm/glm.hpp>
+
+namespace rigging {
+    struct Rig;
+
+    struct Pose {
+        std::vector<glm::mat4> matrices;
+    };
+
+    class RigNode {
+        uint index;
+        std::vector<std::unique_ptr<RigNode>> subnodes;
+    public:
+        RigNode(uint index);
+    };
+    
+    class RigConfig {
+        std::unique_ptr<RigNode> root;
+    };
+
+    struct Rig {
+        RigConfig* config;
+        Pose pose;
+    };
+};
+
+#endif // OBJECTS_SKELETON_HPP_