Nuked Transform

src/dawn/display/CMakeLists.txt

@@ -7,7 +7,6 @@
 target_sources(${DAWN_TARGET_NAME}
   PRIVATE
     RenderPipeline.cpp
-    Transform.cpp
     Tileset.cpp
     Color.cpp
 )

src/dawn/display/RenderPipeline.cpp

@@ -105,7 +105,7 @@ void RenderPipeline::renderSceneCamera(std::shared_ptr<Scene> scene, std::shared
   // Update shader parameter buffers with current knowledge
   struct RenderPipelineShaderBufferData shaderBufferData;
   shaderBufferData.projection = camera->getProjection();
-  shaderBufferData.view = camera->transform->getWorldTransform();
+  shaderBufferData.view = camera->item->getWorldTransform();
   shaderBuffer.buffer(&shaderBufferData);
 
   // Prepare a render context. This is just a nice way of letting renderables 

src/dawn/display/RenderPipeline.hpp

@@ -54,7 +54,10 @@ namespace Dawn {
        * @param scene Scene to render.
        * @param camera Camera within the scene to render.
        */
-      virtual void renderSceneCamera(std::shared_ptr<Scene> scene, std::shared_ptr<Camera> camera);
+      virtual void renderSceneCamera(
+        std::shared_ptr<Scene> scene,
+        std::shared_ptr<Camera> camera
+      );
 
       /**
        * Cleanup a render pipeline that has been initialized.

src/dawn/display/Transform.cpp

@@ -1,195 +0,0 @@
-// Copyright (c) 2022 Dominic Masters
-// 
-// This software is released under the MIT License.
-// https://opensource.org/licenses/MIT
-
-#include "Transform.hpp"
-#include "scene/SceneItem.hpp"
-#include "util/mathutils.hpp"
-
-using namespace Dawn;
-
-Transform::Transform(SceneItem *item) :
-  transformLocal(1.0f),
-  transformWorld(1.0f)
-{
-  assertNotNull(item, "Transform::Transform: Item cannot be null");
-  
-  this->item = item;
-  this->updateLocalValuesFromLocalTransform();
-}
-
-void Transform::updateLocalValuesFromLocalTransform() {
-  glm::vec3 skew;
-  glm::vec4 perspective;
-  glm::decompose(
-    this->transformLocal,
-    this->localScale,
-    this->localRotation,
-    this->localPosition,
-    skew, perspective
-  );
-}
-
-void Transform::updateLocalTransformFromLocalValues() {
-  glm::mat4 translate = glm::translate(glm::mat4(1.0), this->localPosition);
-  glm::mat4 rotate = glm::mat4_cast(this->localRotation);
-  glm::mat4 scale = glm::scale(glm::mat4(1.0), this->localScale);
-  this->transformLocal = translate * rotate * scale;
-  this->updateWorldTransformFromLocalTransform();
-}
-
-void Transform::updateWorldTransformFromLocalTransform() {
-  auto parent = this->getParent();
-  if(parent != nullptr) {
-    auto newWorld = parent->getWorldTransform();
-    this->transformWorld = newWorld * transformLocal;
-  } else {
-    this->transformWorld = transformLocal;
-  }
-}
-
-void Transform::updateLocalTransformFromWorldTransform() {
-  glm::mat4 parentMat(1.0f);
-  auto parent = this->getParent();
-  if(parent != nullptr) parentMat = parent->getWorldTransform();
-  this->transformLocal = parentMat / this->transformWorld;
-  this->updateLocalValuesFromLocalTransform();
-}
-
-void Transform::updateChildrenTransforms() {
-  auto it = this->children.begin();
-  while(it != this->children.end()) {
-    (*it)->updateWorldTransformFromLocalTransform();
-    ++it;
-  }
-}
-
-void Transform::lookAt(glm::vec3 pos, glm::vec3 look) {
-  this->lookAt(pos, look, glm::vec3(0, 1, 0));
-}
-
-void Transform::lookAt(glm::vec3 pos, glm::vec3 look, glm::vec3 up) {
-  this->setWorldTransform(glm::lookAt(pos, look, up));
-}
-
-float_t Transform::lookAtPixelPerfect(
-  glm::vec3 position, glm::vec3 look, float_t viewportHeight, float_t fov
-) {
-  float_t z = (
-    tanf((mathDeg2Rad(180.0f) - fov) / 2.0f) *
-    (viewportHeight/2.0f)
-  );
-  this->lookAt(glm::vec3(position.x, position.y, position.z + z), look);
-  return z;
-}
-
-glm::vec3 Transform::getLocalPosition() {
-  return this->localPosition;
-}
-
-void Transform::setLocalPosition(glm::vec3 position) {
-  this->localPosition = position;
-  this->updateLocalTransformFromLocalValues();
-  this->updateChildrenTransforms();
-  this->eventTransformUpdated.invoke();
-}
-
-glm::vec3 Transform::getLocalScale() {
-  return this->localScale;
-}
-
-void Transform::setLocalScale(glm::vec3 scale) {
-  this->localScale = scale;
-  this->updateLocalTransformFromLocalValues();
-  this->updateChildrenTransforms();
-  this->eventTransformUpdated.invoke();
-}
-
-glm::quat Transform::getLocalRotation() {
-  return this->localRotation;
-}
-
-void Transform::setLocalRotation(glm::quat rotation) {
-  this->localRotation = rotation;
-  this->updateLocalTransformFromLocalValues();
-  this->updateChildrenTransforms();
-  this->eventTransformUpdated.invoke();
-}
-
-
-glm::mat4 Transform::getLocalTransform() {
-  return this->transformLocal;
-}
-
-void Transform::setLocalTransform(glm::mat4 transform) {
-  this->transformLocal = transform;
-
-  this->updateLocalValuesFromLocalTransform();
-  this->updateChildrenTransforms();
-  this->eventTransformUpdated.invoke();
-}
-
-glm::vec3 Transform::getWorldPosition() {
-  return this->transformWorld[3];
-}
-
-glm::mat4 Transform::getWorldTransform() {
-  return this->transformWorld;
-}
-
-void Transform::setWorldTransform(glm::mat4 transform) {
-  this->transformWorld = transform;
-  this->updateLocalTransformFromWorldTransform();
-  this->updateChildrenTransforms();
-  this->eventTransformUpdated.invoke();
-}
-
-
-void Transform::setParent(Transform *parent) {
-  assertTrue(parent == nullptr || parent != this, "Transform::setParent: Cannot set parent to self");
-  
-  auto currentParent = this->getParent();
-  if(currentParent == parent) return;
-
-  if(currentParent != nullptr) {
-    auto it = currentParent->children.begin();
-    while(it != currentParent->children.end()) {
-      if(*it == this) {
-        currentParent->children.erase(it);
-        break;
-      }
-      ++it;
-    }
-  }
-
-  this->parent = parent;
-  if(parent != nullptr) parent->children.push_back(this);
-
-  this->updateLocalTransformFromWorldTransform();
-  this->updateChildrenTransforms();
-  this->eventTransformUpdated.invoke();
-}
-
-Transform * Transform::getParent() {
-  return this->parent;
-}
-
-bool_t Transform::isChildOf(Transform *parent) {
-  Transform *current = this->getParent();
-  while(current != nullptr) {
-    if(current == parent) return true;
-    current = current->getParent();
-  }
-  return false;
-}
-
-Transform::~Transform() {
-  this->setParent(nullptr);
-
-  auto it = this->children.begin();
-  while(it != this->children.end()) {
-    (*it)->setParent(nullptr);
-    it = this->children.begin();
-  }
-}

src/dawn/display/Transform.hpp

@@ -1,180 +0,0 @@
-// Copyright (c) 2022 Dominic Masters
-// 
-// This software is released under the MIT License.
-// https://opensource.org/licenses/MIT
-
-#pragma once
-#include "dawnlibs.hpp"
-#include "assert/assert.hpp"
-#include "util/flag.hpp"
-#include "state/StateEvent.hpp"
-
-namespace Dawn {
-  class SceneItem;
-
-  class Transform {
-    private:
-      // Local (real) values
-      glm::vec3 localPosition;
-      glm::vec3 localScale;
-      glm::quat localRotation;
-
-      // Cached (non-real) values
-      glm::mat4 transformLocal;
-      glm::mat4 transformWorld;
-
-      // glm::vec3 position;
-      // glm::vec3 scale;
-      // glm::quat rotation;
-
-      // Heirarchy
-      Transform *parent = nullptr;
-      std::vector<Transform *> children;
-
-      // Hidden methods
-      void updateLocalValuesFromLocalTransform();
-      void updateLocalTransformFromLocalValues();
-      void updateWorldTransformFromLocalTransform();
-      void updateLocalTransformFromWorldTransform();
-      void updateChildrenTransforms();
-
-    public:
-      // I have no idea if I'm keeping this
-      // Event<> eventTransformUpdated;
-      StateEvent<> eventTransformUpdated;
-      SceneItem *item;
-
-      /**
-       * Constructs a new transform instance. Currently I have bound transforms
-       * to their parent SceneItem, but in future I may allow them to become
-       * disconnected from each other, for example I really could use a special
-       * transform designed purely for UI elements, since they don't act like
-       * normal scene items, but for now Transforms and SceneItems are 1:1
-       * 
-       * @param item Item that this transform belongs to.
-       */
-      Transform(SceneItem *item);
-
-      /**
-       * Orients this transform to look at a given point in world space.
-       * 
-       * @param position Position of the origin of this transform.
-       * @param look Position in world space this transform looks at.
-       */
-      void lookAt(glm::vec3 position, glm::vec3 look);
-      void lookAt(glm::vec3 position, glm::vec3 look, glm::vec3 up);
-
-      /**
-       * Shorthand combined for lookAt and perspectivePixelPerfectDistance
-       * to allow you to create pixel perfect lookAt camera view matricies.
-       * 
-       * @param position Position of the camera. Z is for an offset.
-       * @param look Position in world space this transform looks at.
-       * @param viewportHeight Height of the viewport.
-       * @param fov Field of view (in radians).
-       * @return The Z distance that was calculated.
-       */
-      float_t lookAtPixelPerfect(
-        glm::vec3 position, glm::vec3 look, float_t viewportHeight, float_t fov
-      );
-
-      /**
-       * Returns the local position (position relative to "my parent").
-       * @return The 3D local position in parent-relative space.
-       */
-      glm::vec3 getLocalPosition();
-
-      /**
-       * Update / Set the local position of this transform relative to my parent
-       * @param position Position to set for the local transform.
-       */
-      void setLocalPosition(glm::vec3 position);
-
-      /**
-       * Retusn the scale of this item, relative to my parent.
-       * @return 3D Scale vector of this item in parent-relative space.
-       */
-      glm::vec3 getLocalScale();
-
-      /**
-       * Set the local scale of this item.
-       * @param scale Scale of this item, relative to its parent.
-       */
-      void setLocalScale(glm::vec3 scale);
-
-      /**
-       * Returns the local rotation for this transform.
-       * @return The local rotation (parent-relative).
-       */
-      glm::quat getLocalRotation();
-      
-      /**
-       * Set the local (parent-relative) rotation for this transform.
-       * @param rotation Rotation in parent relative space.
-       */
-      void setLocalRotation(glm::quat rotation);
-
-      /**
-       * Returns the transform matrix for this transform, in parent-relative 
-       * space.
-       * @return The transform origin in parent-relative space.
-       */
-      glm::mat4 getLocalTransform();
-
-      /**
-       * Sets the local transform matrix for this transform.
-       * @param transform Local (parent-relative) transform to set.
-       */
-      void setLocalTransform(glm::mat4 transform);
-
-      /**
-       * Returns the position of the origin of this transform in world-space.
-       * 
-       * @return Transform origin in world-space.
-       */
-      glm::vec3 getWorldPosition();
-
-      /**
-       * Returns the transformation matrix for this transform, in world-space.
-       * @return The transform origin in world-space.
-       */
-      glm::mat4 getWorldTransform();
-
-      /**
-       * Updates the transform's world-space.
-       * @param transform Sets the transform position in world-space.
-       */
-      void setWorldTransform(glm::mat4 transform);
-    
-      /**
-       * Updates the transform that this transform is a child of. Will also
-       * handle disconnecting any existing parent.
-       * 
-       * @param p Parent that this transform is now a child of.
-       */
-      void setParent(Transform *p);
-
-      /**
-       * Returns the parent transform of this transform, or nullptr if there is
-       * no parent for this transform.
-       * @return Pointer to the parent transform, or nullptr.
-       */
-      Transform * getParent();
-
-      /**
-       * Returns true if this transform is a child of the given transform, this
-       * climbs up the heirarchy until it finds a match.
-       * 
-       * @param p Transform to check if this transform is a child of.
-       * @return True if this transform is a child of the given transform.
-       */
-      bool_t isChildOf(Transform *p);
-
-      /**
-       * Dispose and clenaup this transform, also removes self from parent.
-       */
-      ~Transform();
-
-      friend SceneItem;
-  };
-} 

src/dawn/games/vn/events/VNPositionEvent.hpp

@@ -32,7 +32,7 @@ namespace Dawn {
       void onStart() override {
         assertNotNull(item);
 
-        auto start = item->transform.getLocalPosition();
+        auto start = item->getLocalPosition();
         if(from.x == VN_POSITION_EVENT_VALUE_UNCHANGED) start.x = from.x;
         if(from.y == VN_POSITION_EVENT_VALUE_UNCHANGED) start.y = from.y;
         if(from.z == VN_POSITION_EVENT_VALUE_UNCHANGED) start.z = from.z;
@@ -45,7 +45,7 @@ namespace Dawn {
       }
 
       void setValue(glm::vec3 value) override {
-        this->item->transform.setLocalPosition(value);
+        this->item->setLocalPosition(value);
       }
   };
 }

src/dawn/scene/SceneItem.cpp

@@ -5,14 +5,19 @@
 
 #include "SceneItem.hpp"
 #include "SceneItemComponent.hpp"
+#include "util/mathutils.hpp"
 
 using namespace Dawn;
 
-SceneItem::SceneItem(Scene *scene, sceneitemid_t id)  : transform(this) {
+SceneItem::SceneItem(Scene *scene, sceneitemid_t id)  :
+  transformLocal(1.0f),
+  transformWorld(1.0f)
+{
   assertNotNull(scene, "SceneItem::SceneItem: Scene cannot be null");
   
   this->id = id;
   this->scene = scene;
+  this->updateLocalValuesFromLocalTransform();
 }
 
 void SceneItem::init() {
@@ -63,5 +68,185 @@ void SceneItem::destroy() {
   this->components.clear();
 }
 
+void SceneItem::updateLocalValuesFromLocalTransform() {
+  glm::vec3 skew;
+  glm::vec4 perspective;
+  glm::decompose(
+    this->transformLocal,
+    this->localScale,
+    this->localRotation,
+    this->localPosition,
+    skew, perspective
+  );
+}
+
+void SceneItem::updateLocalTransformFromLocalValues() {
+  glm::mat4 translate = glm::translate(glm::mat4(1.0), this->localPosition);
+  glm::mat4 rotate = glm::mat4_cast(this->localRotation);
+  glm::mat4 scale = glm::scale(glm::mat4(1.0), this->localScale);
+  this->transformLocal = translate * rotate * scale;
+  this->updateWorldTransformFromLocalTransform();
+}
+
+void SceneItem::updateWorldTransformFromLocalTransform() {
+  auto parent = this->getParent().lock();
+  if(parent != nullptr) {
+    auto newWorld = parent->getWorldTransform();
+    this->transformWorld = newWorld * transformLocal;
+  } else {
+    this->transformWorld = transformLocal;
+  }
+}
+
+
+void SceneItem::updateLocalTransformFromWorldTransform() {
+  glm::mat4 parentMat(1.0f);
+  auto parent = this->getParent().lock();
+  if(parent != nullptr) parentMat = parent->getWorldTransform();
+  this->transformLocal = parentMat / this->transformWorld;
+  this->updateLocalValuesFromLocalTransform();
+}
+
+void SceneItem::updateChildrenTransforms() {
+  auto it = this->children.begin();
+  while(it != this->children.end()) {
+    auto childTrans = it->lock();
+    if(childTrans)  childTrans->updateWorldTransformFromLocalTransform();
+    ++it;
+  }
+}
+
+void SceneItem::lookAt(glm::vec3 pos, glm::vec3 look) {
+  this->lookAt(pos, look, glm::vec3(0, 1, 0));
+}
+
+void SceneItem::lookAt(glm::vec3 pos, glm::vec3 look, glm::vec3 up) {
+  this->setWorldTransform(glm::lookAt(pos, look, up));
+}
+
+float_t SceneItem::lookAtPixelPerfect(
+  glm::vec3 position, glm::vec3 look, float_t viewportHeight, float_t fov
+) {
+  float_t z = (
+    tanf((mathDeg2Rad(180.0f) - fov) / 2.0f) *
+    (viewportHeight/2.0f)
+  );
+  this->lookAt(glm::vec3(position.x, position.y, position.z + z), look);
+  return z;
+}
+
+glm::vec3 SceneItem::getLocalPosition() {
+  return this->localPosition;
+}
+
+void SceneItem::setLocalPosition(glm::vec3 position) {
+  this->localPosition = position;
+  this->updateLocalTransformFromLocalValues();
+  this->updateChildrenTransforms();
+  this->eventTransformUpdated.invoke();
+}
+
+glm::vec3 SceneItem::getLocalScale() {
+  return this->localScale;
+}
+
+void SceneItem::setLocalScale(glm::vec3 scale) {
+  this->localScale = scale;
+  this->updateLocalTransformFromLocalValues();
+  this->updateChildrenTransforms();
+  this->eventTransformUpdated.invoke();
+}
+
+glm::quat SceneItem::getLocalRotation() {
+  return this->localRotation;
+}
+
+void SceneItem::setLocalRotation(glm::quat rotation) {
+  this->localRotation = rotation;
+  this->updateLocalTransformFromLocalValues();
+  this->updateChildrenTransforms();
+  this->eventTransformUpdated.invoke();
+}
+
+
+glm::mat4 SceneItem::getLocalTransform() {
+  return this->transformLocal;
+}
+
+void SceneItem::setLocalTransform(glm::mat4 transform) {
+  this->transformLocal = transform;
+
+  this->updateLocalValuesFromLocalTransform();
+  this->updateChildrenTransforms();
+  this->eventTransformUpdated.invoke();
+}
+
+glm::vec3 SceneItem::getWorldPosition() {
+  return this->transformWorld[3];
+}
+
+glm::mat4 SceneItem::getWorldTransform() {
+  return this->transformWorld;
+}
+
+void SceneItem::setWorldTransform(glm::mat4 transform) {
+  this->transformWorld = transform;
+  this->updateLocalTransformFromWorldTransform();
+  this->updateChildrenTransforms();
+  this->eventTransformUpdated.invoke();
+}
+
+
+void SceneItem::setParent(std::shared_ptr<SceneItem> parent) {
+  assertTrue(
+    parent == nullptr || parent != shared_from_this(),
+    "SceneItem::setParent: Cannot set parent to self"
+  );
+  
+  auto currentParent = this->getParent().lock();
+  if(currentParent == parent) return;
+
+  if(currentParent != nullptr) {
+    auto it = currentParent->children.begin();
+    while(it != currentParent->children.end()) {
+      auto child = (*it).lock();
+      if(child == shared_from_this()) {
+        currentParent->children.erase(it);
+        break;
+      }
+      ++it;
+    }
+  }
+
+  this->parent = parent;
+  if(parent != nullptr) parent->children.push_back(shared_from_this());
+
+  this->updateLocalTransformFromWorldTransform();
+  this->updateChildrenTransforms();
+  this->eventTransformUpdated.invoke();
+}
+
+std::weak_ptr<SceneItem> SceneItem::getParent() {
+  return this->parent;
+}
+
+bool_t SceneItem::isChildOf(std::shared_ptr<SceneItem> parent) {
+  auto current = this->getParent();
+  std::shared_ptr<SceneItem> currentLocked;
+  while(currentLocked = current.lock()) {
+    if(currentLocked == parent) return true;
+    current = currentLocked->getParent();
+  }
+  return false;
+}
+
 SceneItem::~SceneItem() {
+  this->setParent(nullptr);
+
+  auto it = this->children.begin();
+  while(it != this->children.end()) {
+    auto child = (*it).lock();
+    if(child != nullptr) child->setParent(nullptr);
+    it = this->children.begin();
+  }
 }

src/dawn/scene/SceneItem.hpp

@@ -4,21 +4,47 @@
 // https://opensource.org/licenses/MIT
 
 #pragma once
-#include "display/Transform.hpp"
 #include "scene/Scene.hpp"
 #include "util/array.hpp"
 
 namespace Dawn {
   class SceneItemComponent;
 
-  class SceneItem : public StateOwner {
+  class SceneItem :
+    public StateOwner,
+    public std::enable_shared_from_this<SceneItem>
+  {
     private:
       std::vector<std::shared_ptr<SceneItemComponent>> components;
+      // Local (real) values
+      glm::vec3 localPosition;
+      glm::vec3 localScale;
+      glm::quat localRotation;
+
+      // Cached (non-real) values
+      glm::mat4 transformLocal;
+      glm::mat4 transformWorld;
+
+      // glm::vec3 position;
+      // glm::vec3 scale;
+      // glm::quat rotation;
+
+      // Heirarchy
+      std::weak_ptr<SceneItem> parent;
+      std::vector<std::weak_ptr<SceneItem>> children;
+
+      // Hidden methods
+      void updateLocalValuesFromLocalTransform();
+      void updateLocalTransformFromLocalValues();
+      void updateWorldTransformFromLocalTransform();
+      void updateLocalTransformFromWorldTransform();
+      void updateChildrenTransforms();
 
     public:
       Scene *scene;
       sceneitemid_t id;
-      Transform transform;
+      // I have no idea if I'm keeping this
+      StateEvent<> eventTransformUpdated;
 
       /**
        * Constructor for a SceneItem. Scene Items should only be called and
@@ -106,10 +132,16 @@ namespace Dawn {
        */
       template<class T>
       std::shared_ptr<T> findChild() {
-        auto it = this->transform.children.begin();
+        auto it = this->children.begin();
-        while(it != this->transform.children.end()) {
+        while(it != this->children.end()) {
-          auto child = (*it)->item->getComponent<T>();
+          auto childItem = it->lock();
-          if(child != nullptr) return child;
+          if(childItem == nullptr) {
+            ++it;
+            continue;
+          }
+
+          auto childComponent = childItem->getComponent<T>();
+          if(childComponent != nullptr) return childComponent;
           ++it;
         }
         return nullptr;
@@ -124,11 +156,16 @@ namespace Dawn {
        */
       template<class T>
       std::vector<std::shared_ptr<T>> findChildren() {
-        auto it = this->transform.children.begin();
+        auto it = this->children.begin();
         std::vector<std::shared_ptr<T>> children;
-        while(it != this->transform.children.end()) {
+        while(it != this->children.end()) {
-          auto child = (*it)->item->getComponent<T>();
+          auto childItem = it->lock();
-          if(child != nullptr) children.push_back(child);
+          if(childItem == nullptr) {
+            ++it;
+            continue;
+          }
+          auto childComponent = childItem->getComponent<T>();
+          if(childComponent != nullptr) children.push_back(childComponent);
           ++it;
         }
         return children;
@@ -143,19 +180,146 @@ namespace Dawn {
        */
       template<class T>
       std::vector<std::shared_ptr<T>> findChildrenDeep() {
-        std::vector<Transform*> transformsToCheck = this->transform.children;
+        auto childrenToCheck = this->children;
         std::vector<std::shared_ptr<T>> itemsFound;
 
-        while(transformsToCheck.size() > 0) {
+        while(childrenToCheck.size() > 0) {
-          Transform *tras = *transformsToCheck.begin();
+          auto it = *childrenToCheck.begin();
-          vectorAppend(transformsToCheck, tras->children);
+          auto otherItem = it.lock();
-          auto component = tras->item->getComponent<T>();
+          if(otherItem != nullptr) {
+            vectorAppend(childrenToCheck, otherItem->children);
+          }
+          auto component = otherItem->getComponent<T>();
           if(component != nullptr) itemsFound.push_back(component);
-          transformsToCheck.erase(transformsToCheck.begin());
+          childrenToCheck.erase(childrenToCheck.begin());
         }
 
         return itemsFound;
       }
+
+      // // // // // // // // // // // // // // // // // // // // // // // // //
+
+      /**
+       * Orients this transform to look at a given point in world space.
+       * 
+       * @param position Position of the origin of this transform.
+       * @param look Position in world space this transform looks at.
+       */
+      void lookAt(const glm::vec3 position, const glm::vec3 look);
+      void lookAt(
+        const glm::vec3 position,
+        const glm::vec3 look,
+        const glm::vec3 up
+      );
+
+      /**
+       * Shorthand combined for lookAt and perspectivePixelPerfectDistance
+       * to allow you to create pixel perfect lookAt camera view matricies.
+       * 
+       * @param position Position of the camera. Z is for an offset.
+       * @param look Position in world space this transform looks at.
+       * @param viewportHeight Height of the viewport.
+       * @param fov Field of view (in radians).
+       * @return The Z distance that was calculated.
+       */
+      float_t lookAtPixelPerfect(
+        const glm::vec3 position,
+        const glm::vec3 look,
+        const float_t viewportHeight,
+        const float_t fov
+      );
+
+      /**
+       * Returns the local position (position relative to "my parent").
+       * @return The 3D local position in parent-relative space.
+       */
+      glm::vec3 getLocalPosition();
+
+      /**
+       * Update / Set the local position of this transform relative to my parent
+       * @param position Position to set for the local transform.
+       */
+      void setLocalPosition(const glm::vec3 position);
+
+      /**
+       * Retusn the scale of this item, relative to my parent.
+       * @return 3D Scale vector of this item in parent-relative space.
+       */
+      glm::vec3 getLocalScale();
+
+      /**
+       * Set the local scale of this item.
+       * @param scale Scale of this item, relative to its parent.
+       */
+      void setLocalScale(const glm::vec3 scale);
+
+      /**
+       * Returns the local rotation for this transform.
+       * @return The local rotation (parent-relative).
+       */
+      glm::quat getLocalRotation();
+      
+      /**
+       * Set the local (parent-relative) rotation for this transform.
+       * @param rotation Rotation in parent relative space.
+       */
+      void setLocalRotation(const glm::quat rotation);
+
+      /**
+       * Returns the transform matrix for this transform, in parent-relative 
+       * space.
+       * @return The transform origin in parent-relative space.
+       */
+      glm::mat4 getLocalTransform();
+
+      /**
+       * Sets the local transform matrix for this transform.
+       * @param transform Local (parent-relative) transform to set.
+       */
+      void setLocalTransform(const glm::mat4 transform);
+
+      /**
+       * Returns the position of the origin of this transform in world-space.
+       * 
+       * @return Transform origin in world-space.
+       */
+      glm::vec3 getWorldPosition();
+
+      /**
+       * Returns the transformation matrix for this transform, in world-space.
+       * @return The transform origin in world-space.
+       */
+      glm::mat4 getWorldTransform();
+
+      /**
+       * Updates the transform's world-space.
+       * @param transform Sets the transform position in world-space.
+       */
+      void setWorldTransform(const glm::mat4 transform);
+    
+      /**
+       * Updates the transform that this transform is a child of. Will also
+       * handle disconnecting any existing parent.
+       * 
+       * @param p Parent that this transform is now a child of.
+       */
+      void setParent(const std::shared_ptr<SceneItem> p);
+
+      /**
+       * Returns the parent transform of this transform, or nullptr if there is
+       * no parent for this transform.
+       * @return Pointer to the parent transform, or nullptr.
+       */
+      std::weak_ptr<SceneItem> getParent();
+
+      /**
+       * Returns true if this transform is a child of the given transform, this
+       * climbs up the heirarchy until it finds a match.
+       * 
+       * @param p Transform to check if this transform is a child of.
+       * @return True if this transform is a child of the given transform.
+       */
+      bool_t isChildOf(std::shared_ptr<SceneItem> p);
       
       /**
        * Destroy this SceneItem.

src/dawn/scene/SceneItemComponent.cpp

@@ -13,7 +13,6 @@ using namespace Dawn;
 SceneItemComponent::SceneItemComponent(SceneItem *item) {
   assertNotNull(item, "SceneItemComponent::SceneItemComponent: Item cannot be null");
   this->item = item;
-  this->transform = &item->transform;
 }
 
 void SceneItemComponent::init() {

src/dawn/scene/SceneItemComponent.hpp

@@ -5,7 +5,6 @@
 
 #pragma once
 #include "dawnlibs.hpp"
-#include "display/Transform.hpp"
 #include "scene/SceneItem.hpp"
 #include "state/StateOwner.hpp"
 
@@ -15,7 +14,6 @@ namespace Dawn {
   class SceneItemComponent : public StateOwner {
     public:
       SceneItem *item;
-      Transform *transform;
       bool_t hasInitialized = false;
 
       /**

src/dawn/scene/components/display/Camera.cpp

@@ -66,7 +66,7 @@ glm::vec3 Camera::getRayDirectionFromScreenSpace(glm::vec2 screenSpace) {
   glm::vec4 eyeCoords = inverseProjectionMatrix * clipCoords;
   eyeCoords = glm::vec4(eyeCoords.x, eyeCoords.y, -1.0f, 0.0f);
 
-  glm::mat4 inverseViewMatrix = glm::inverse(transform->getWorldTransform());
+  glm::mat4 inverseViewMatrix = glm::inverse(item->getWorldTransform());
   glm::vec4 t = inverseViewMatrix * eyeCoords;
 
   return glm::normalize(glm::vec3(t.x, t.y, t.z));

src/dawn/scene/components/display/PixelPerfectCamera.cpp

@@ -33,13 +33,13 @@ void PixelPerfectCamera::updateDimensions() {
       break;
     
     case CAMERA_TYPE_PERSPECTIVE:
-      this->transform->lookAtPixelPerfect(
+      item->lookAtPixelPerfect(
         glm::vec3(0, 0, 0),
         glm::vec3(0, 0, 0),
         target->getHeight() / this->scale,
         this->camera->fov
       );
-      // this->transform->lookAt(glm::vec3(360, 360, 360), glm::vec3(0, 0, 0));
+      // this->lookAt(glm::vec3(360, 360, 360), glm::vec3(0, 0, 0));
       break;
     
     default:

src/dawn/scene/components/example/ExampleSpin.cpp

@@ -29,10 +29,10 @@ ExampleSpin::ExampleSpin(SceneItem *item) :
 
 void ExampleSpin::onStart() {
   useEvent([&](float_t delta){
-    auto quat = this->transform->getLocalRotation();
+    auto quat = item->getLocalRotation();
     quat = glm::rotate(quat, delta, glm::vec3(0, 1, 0));
     quat = glm::rotate(quat, delta / 2.0f, glm::vec3(1, 0, 0));
     quat = glm::rotate(quat, delta / 4.0f, glm::vec3(0, 0, 1));
-    this->transform->setLocalRotation(quat);
+    item->setLocalRotation(quat);
   }, getScene()->eventSceneUnpausedUpdate);
 }

src/dawn/scene/components/physics/2d/CharacterController2D.cpp

@@ -38,7 +38,7 @@ void CharacterController2D::onStart() {
       while(itColliders != allColliders.end()) {
         auto c = *itColliders;
         ++itColliders;
-        if(c->item == this->item || c->transform->isChildOf(this->transform)) continue;
+        if(c->item == this->item || c->item->isChildOf(item->shared_from_this())) continue;
         result = c->getCollidingResult(
           velocity,
           myCollider,
@@ -65,8 +65,8 @@ void CharacterController2D::onStart() {
     }
 
     if(moveAmount != glm::vec2(0, 0)) {
-      transform->setLocalPosition(
+      item->setLocalPosition(
-        transform->getLocalPosition() + (glm::vec3(moveAmount.x, 0, moveAmount.y) * delta)
+        item->getLocalPosition() + (glm::vec3(moveAmount.x, 0, moveAmount.y) * delta)
       );
     }
 
@@ -76,7 +76,7 @@ void CharacterController2D::onStart() {
     while(itTriggers != allTriggers.end()) {
       auto c = *itTriggers;
       ++itTriggers;
-      if(c->item == this->item || c->transform->isChildOf(this->transform)) continue;
+      if(c->item == this->item || c->item->isChildOf(item->shared_from_this())) continue;
       if(c->getCollidingResult(myCollider)) {
         c->eventTriggerEnter.invoke(this);
       }

src/dawn/scene/components/physics/2d/SolidController2D.cpp

@@ -29,7 +29,7 @@ bool_t SolidController2D::getCollidingResult(
   assertNotNull(movingObject, "SolidController2D::getCollidingResult: Moving object cannot be null");
   if(movement.x == 0 && movement.y == 0) return false;
 
-  auto myPos = physics3Dto2D(movingObject->transform->getWorldPosition());
+  auto myPos = physics3Dto2D(movingObject->item->getWorldPosition());
 
   // Check what the moving object is
   switch(movingObject->getColliderType()) {
@@ -42,7 +42,7 @@ bool_t SolidController2D::getCollidingResult(
         case COLLIDER2D_TYPE_BOX: {
           auto box2 = std::static_pointer_cast<BoxCollider>(this->collider);
           assertNotNull(box2, "SolidController2D::getCollidingResult: Collider is not a BoxCollider");
-          auto otherPos = physics3Dto2D(box2->transform->getWorldPosition());
+          auto otherPos = physics3Dto2D(box2->item->getWorldPosition());
 
           return boxCheckCollision(
             myPos, box1->min, box1->max,

src/dawn/scene/components/physics/2d/TriggerController2D.cpp

@@ -32,8 +32,8 @@ bool_t TriggerController2D::getCollidingResult(std::shared_ptr<Collider2D> movin
           auto box2 = std::static_pointer_cast<BoxCollider>(collider);
           assertNotNull(box2, "TriggerController2D::getCollidingResult: Collider is not a BoxCollider");
           return boxIsBoxColliding(
-            physics3Dto2D(box1->transform->getWorldPosition()), box1->min, box1->max,
+            physics3Dto2D(box1->item->getWorldPosition()), box1->min, box1->max,
-            physics3Dto2D(box2->transform->getWorldPosition()), box2->min, box2->max
+            physics3Dto2D(box2->item->getWorldPosition()), box2->min, box2->max
           );
         }
         

src/dawn/scene/components/physics/3d/CapsuleCollider.cpp

@@ -22,7 +22,7 @@ bool_t CapsuleCollider::performRaycast(
     {
       .height = this->height,
       .radius = this->radius,
-      .origin = this->transform->getWorldPosition()
+      .origin = item->getWorldPosition()
     },
     &result->point,
     &result->normal,

src/dawn/scene/components/physics/3d/CharacterController3D.cpp

@@ -30,6 +30,6 @@ void CharacterController3D::onStart() {
     // }
 
     // Move / Update
-    transform->setLocalPosition(transform->getLocalPosition() + (velocity * delta));
+    item->setLocalPosition(item->getLocalPosition() + (velocity * delta));
   }, getScene()->eventSceneUpdate);
 }

src/dawn/scene/components/physics/3d/CubeCollider.cpp

@@ -20,7 +20,7 @@ bool_t CubeCollider::performRaycast(
   return Dawn::raytestCube(
     ray,
     { .min = this->min, .max = this->max },
-    this->transform->getWorldTransform(),
+    item->getWorldTransform(),
     &result->point,
     &result->normal,
     &result->distance

src/dawn/scene/components/physics/3d/SphereCollider.cpp

@@ -23,7 +23,7 @@ bool_t SphereCollider::performRaycast(
 
   return raytestSphere(
     ray,
-    { .center = transform->getLocalPosition(), .radius = this->radius },
+    { .center = item->getLocalPosition(), .radius = this->radius },
     &result->point,
     &result->normal,
     &result->distance

src/dawn/scene/components/scene/SubSceneCameraAlign.cpp

@@ -23,7 +23,7 @@ void SubSceneCameraAlign::realign() {
   float_t myRatio = this->camera->getAspect();
   
   this->camera->type = CAMERA_TYPE_ORTHONOGRAPHIC;
-  this->camera->transform->lookAt(glm::vec3(0, 0, 10), glm::vec3(0, 0, 0));
+  this->camera->item->lookAt(glm::vec3(0, 0, 10), glm::vec3(0, 0, 0));
 
   if(ratio > myRatio) {
     // My Ratio is narrower

src/dawn/scene/components/ui/UIBorder.cpp

@@ -37,7 +37,7 @@ std::vector<struct ShaderPassItem> UIBorder::getUIRenderPasses() {
   item.shader = shader;
   item.colorValues[shader->paramColor] = COLOR_WHITE;
   item.parameterBuffers[shader->bufferUiCanvas] = &this->getCanvas()->shaderBuffer;
-  item.matrixValues[shader->paramModel] = this->transform->getWorldTransform();
+  item.matrixValues[shader->paramModel] = this->item->getWorldTransform();
   if(this->texture == nullptr) {
     item.boolValues[shader->paramHasTexture] = false;
   } else {
@@ -45,7 +45,7 @@ std::vector<struct ShaderPassItem> UIBorder::getUIRenderPasses() {
     item.textureSlots[0] = this->texture;
     item.textureValues[shader->paramTexture] = 0;
   }
-  item.w = this->transform->getWorldPosition().z;
+  item.w = this->item->getWorldPosition().z;
   item.renderFlags = RENDER_MANAGER_RENDER_FLAG_BLEND;
   item.mesh = &mesh;
   

src/dawn/scene/components/ui/UICanvas.cpp

@@ -26,7 +26,7 @@ void UICanvas::rebufferShaderParameters() {
   switch(this->drawType) {
     case UI_DRAW_TYPE_WORLD_ABSOLUTE:
       data.projection = camera->getProjection();
-      data.view = camera->transform->getWorldTransform();
+      data.view = camera->item->getWorldTransform();
       break;
 
     case UI_DRAW_TYPE_WORLD_CAMERA_RELATIVE:

src/dawn/scene/components/ui/UIComponent.cpp

@@ -22,9 +22,9 @@ UIComponent::UIComponent(SceneItem *item) :
 }
 
 std::shared_ptr<UIComponentDimensional> UIComponent::getParentDimensional() {
-  auto parent = this->transform->getParent();
+  auto parent = item->getParent().lock();
   if(parent == nullptr) return nullptr;
-  auto dimensional = parent->item->getComponent<UIComponentDimensional>();
+  auto dimensional = parent->getComponent<UIComponentDimensional>();
   assertNotNull(dimensional, "UIComponent::getParentDimensional: Parent must have a UIComponentDimensional");
   return dimensional;
 }
@@ -34,7 +34,7 @@ void UIComponent::updateAlignment() {
   
   auto align = (glm::vec4)this->alignment;
   auto dimensional = this->getParentDimensional();
-  auto translate = this->transform->getLocalPosition();
+  auto translate = item->getLocalPosition();
 
   assertNotNull(dimensional, "UIComponent::updateAlignment: Parent must have a UIComponentDimensional");
 
@@ -99,7 +99,7 @@ void UIComponent::updateAlignment() {
   translate.x += dimensional->getChildOffsetX();
   translate.y += dimensional->getChildOffsetY();
 
-  this->transform->setLocalPosition(translate);
+  item->setLocalPosition(translate);
   this->alignmentNeedsUpdating = false;
   this->eventAlignmentUpdated.invoke();
 }
@@ -240,11 +240,11 @@ void UIComponent::calculateDimensions(
 
 std::shared_ptr<UICanvas> UIComponent::getCanvas() {
   // TODO: Cache this on first hit.
-  auto parent = this->transform->getParent();
+  auto parent = item->getParent().lock();
-  while(parent != nullptr) {
+  while(parent) {
-    auto canvas = parent->item->getComponent<UICanvas>();
+    auto canvas = parent->getComponent<UICanvas>();
     if(canvas != nullptr) return canvas;
-    parent = parent->getParent();
+    parent = parent->getParent().lock();
   }
   assertUnreachable("UIComponent::getCanvas: No canvas found");
   return nullptr;

src/dawn/scene/components/ui/UIImage.cpp

@@ -32,7 +32,7 @@ std::vector<struct ShaderPassItem> UIImage::getUIRenderPasses() {
   item.shader = shader;
   item.colorValues[shader->paramColor] = this->color;
   item.parameterBuffers[shader->bufferUiCanvas] = &getCanvas()->shaderBuffer;
-  item.matrixValues[shader->paramModel] = this->transform->getWorldTransform();
+  item.matrixValues[shader->paramModel] = this->item->getWorldTransform();
   if(this->texture == nullptr) {
     item.boolValues[shader->paramHasTexture] = false;
   } else {
@@ -40,7 +40,7 @@ std::vector<struct ShaderPassItem> UIImage::getUIRenderPasses() {
     item.textureSlots[0] = this->texture;
     item.textureValues[shader->paramTexture] = 0;
   }
-  item.w = this->transform->getWorldPosition().z;
+  item.w = this->item->getWorldPosition().z;
   item.renderFlags = RENDER_MANAGER_RENDER_FLAG_BLEND;
   item.mesh = &mesh;
   return { item };

src/dawn/scene/components/ui/UIMesh.cpp

@@ -26,23 +26,23 @@ float_t UIMesh::getContentHeight() {
 }
 
 std::vector<struct ShaderPassItem> UIMesh::getUIRenderPasses() {
-  struct ShaderPassItem item;
+  struct ShaderPassItem shaderItem;
   auto shader = getGame()->renderManager->uiShader;
-  item.shader = shader;
+  shaderItem.shader = shader;
-  item.colorValues[shader->paramColor] = this->color;
+  shaderItem.colorValues[shader->paramColor] = this->color;
-  item.parameterBuffers[shader->bufferUiCanvas] = &getCanvas()->shaderBuffer;
+  shaderItem.parameterBuffers[shader->bufferUiCanvas] = &getCanvas()->shaderBuffer;
-  item.matrixValues[shader->paramModel] = this->transform->getWorldTransform();
+  shaderItem.matrixValues[shader->paramModel] = item->getWorldTransform();
   if(this->texture == nullptr) {
-    item.boolValues[shader->paramHasTexture] = false;
+    shaderItem.boolValues[shader->paramHasTexture] = false;
   } else {
-    item.boolValues[shader->paramHasTexture] = true;
+    shaderItem.boolValues[shader->paramHasTexture] = true;
-    item.textureSlots[0] = this->texture;
+    shaderItem.textureSlots[0] = this->texture;
-    item.textureValues[shader->paramTexture] = 0;
+    shaderItem.textureValues[shader->paramTexture] = 0;
   }
-  item.w = this->transform->getWorldPosition().z;
+  shaderItem.w = item->getWorldPosition().z;
-  item.renderFlags = RENDER_MANAGER_RENDER_FLAG_BLEND;
+  shaderItem.renderFlags = RENDER_MANAGER_RENDER_FLAG_BLEND;
-  item.mesh = &mesh;
+  shaderItem.mesh = &mesh;
-  return { item };
+  return { shaderItem };
 }
 
 void UIMesh::onStart() {

src/dawn/scene/components/ui/menu/UISimpleMenu.cpp

@@ -75,7 +75,7 @@ void UISimpleMenu::onStart() {
           case UI_DRAW_TYPE_WORLD_ABSOLUTE:
             mouse *= 2.0f;
             mouse -= glm::vec2(1, 1);
-            ray.origin = canvas->camera->transform->getWorldPosition();
+            ray.origin = canvas->camera->item->getWorldPosition();
             ray.direction = canvas->camera->getRayDirectionFromScreenSpace(mouse);
             break;
 
@@ -107,7 +107,7 @@ void UISimpleMenu::onStart() {
           if(!raytestQuad(
             ray, 
             glm::vec2(0, 0), size,
-            highlight->transform->getWorldTransform(),
+            highlight->item->getWorldTransform(),
             &point,
             &normal,
             &distance

src/dawn/scene/components/ui/text/UILabel.cpp

@@ -90,7 +90,7 @@ std::vector<struct ShaderPassItem> UILabel::getUIRenderPasses() {
   auto shader = getGame()->renderManager->fontShader;
 
   // Translate
-  glm::mat4 model = transform->getWorldTransform();
+  glm::mat4 model = item->getWorldTransform();
   model = glm::translate(model, glm::vec3(this->textOffset, 0.0f));
 
   struct ShaderPassItem item;

src/dawn/scenes/TestScene.hpp

@@ -15,7 +15,7 @@ namespace Dawn {
 
       void stage() override {
         camera = Camera::create(this);
-        camera->transform->lookAt(glm::vec3(5, 5, 5), glm::vec3(0, 0, 0));
+        camera->lookAt(glm::vec3(5, 5, 5), glm::vec3(0, 0, 0));
 
         cube = SimpleSpinningCubePrefab::prefabCreate(this);
       }

src/dawnhelloworld/scenes/HelloWorldScene.hpp

@@ -17,7 +17,7 @@ namespace Dawn {
 
       void stage() override {
         camera = Camera::create(this);
-        camera->transform->lookAt(glm::vec3(3, 3, 3), glm::vec3(0, 0, 0));
+        camera->item->lookAt(glm::vec3(3, 3, 3), glm::vec3(0, 0, 0));
 
         cube = SimpleSpinningCubePrefab::create(this);
 

src/dawnopenal/scene/components/audio/AudioListener.cpp

@@ -17,17 +17,17 @@ void AudioListener::onStart() {
   ALfloat listenerOri[] = { 0.0, 0.0, -1.0, 0.0, 1.0, 0.0 };
   alListenerfv(AL_ORIENTATION, listenerOri);
 
-  glm::vec3 position = this->transform->getLocalPosition();
+  glm::vec3 position = this->item->getLocalPosition();
   alListener3f(AL_POSITION, position.x, position.y, position.z);
 
-  this->transform->eventTransformUpdated.addListener(this, &AudioListener::onTransformUpdate);
+  this->item->eventTransformUpdated.addListener(this, &AudioListener::onTransformUpdate);
 }
 
 void AudioListener::onDispose() {
-  this->transform->eventTransformUpdated.removeListener(this, &AudioListener::onTransformUpdate);
+  this->item->eventTransformUpdated.removeListener(this, &AudioListener::onTransformUpdate);
 }
 
 void AudioListener::onTransformUpdate() {
-  glm::vec3 position = this->transform->getWorldPosition();
+  glm::vec3 position = this->item->getWorldPosition();
   alListener3f(AL_POSITION, position.x, position.y, position.z);
 }

src/dawnopengl/scene/components/display/material/SimpleBillboardedMaterial.cpp

@@ -36,7 +36,7 @@ std::vector<struct ShaderPassItem>
   onlyPass.mesh = mesh->mesh;
   onlyPass.shader = shader;
   onlyPass.colorValues[shader->paramColor] = this->color;
-  onlyPass.matrixValues[shader->paramModel] = this->transform->getWorldTransform();
+  onlyPass.matrixValues[shader->paramModel] = item->getWorldTransform();
   onlyPass.parameterBuffers[shader->bufferRenderPipeline] =
     &context.renderPipeline->shaderBuffer
   ;

src/dawnopengl/scene/components/display/material/SimpleTexturedMaterial.cpp

@@ -38,7 +38,7 @@ std::vector<struct ShaderPassItem>
   onlyPass.shader = shader;
   onlyPass.colorValues[shader->paramColor] = this->color;
   onlyPass.matrixValues[shader->paramModel] =
-    this->transform->getWorldTransform()
+    item->getWorldTransform()
   ;
   onlyPass.parameterBuffers[
     shader->bufferRenderPipeline

src/dawnrose/scene/components/GameCamera.cpp

@@ -21,10 +21,10 @@ void GameCamera::onStart() {
   assertNotNull(this->player);
 
   useEvent([&]{
-    glm::vec3 lookOffset = player->transform->getLocalRotation() * glm::vec3(0, 0, 1.0f);
+    glm::vec3 lookOffset = player->getLocalRotation() * glm::vec3(0, 0, 1.0f);
     glm::vec2 target = glm::vec2(lookOffset.x, lookOffset.z) * lookOffsetScale;
     slowTarget += (target - slowTarget) * getGame()->timeManager.delta * movementScrollSpeed;
-  }, this->player->transform->eventTransformUpdated);
+  }, this->player->eventTransformUpdated);
 
   useEvent([&](float_t delta){
     if(current != slowTarget) {
@@ -37,7 +37,7 @@ void GameCamera::onStart() {
     }
 
     glm::vec3 current3 = glm::vec3(current.x, 0, current.y);
-    glm::vec3 t0 = player->transform->getLocalPosition();
+    glm::vec3 t0 = player->getLocalPosition();
-    camera->transform->lookAt(t0 + current3 + zoomOffset, t0 + current3);
+    camera->lookAt(t0 + current3 + zoomOffset, t0 + current3);
   }, getScene()->eventSceneUpdate);
 }