Moved more files around, working on VN engine

src/dawn/display/animation/SimplerCallbackAnimation.hpp

@@ -0,0 +1,31 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "SimpleAnimation.hpp"
+
+namespace Dawn {
+  template<typename T>
+  struct SimplerCallbackAnimation : public SimpleAnimation<T> {
+    protected:
+      T value;
+
+      void onValueModified() override {
+        SimpleAnimation<T>::onValueModified();
+        this->callback(this->value);
+      }
+
+    public:
+      std::function<void(T)> callback = std::function<void(T)>();
+
+      /**
+       * Construct a new Simple Function Animation object
+       */
+      SimplerCallbackAnimation() :
+        SimpleAnimation<T>(&value)
+      {
+      }
+  };
+}

src/dawn/games/vn/components/VNManager.hpp

@@ -41,17 +41,11 @@ namespace Dawn {
        */
       void setEvent(VNEvent *event);
 
+      /**
+       * Ends the current event, and moves to the next one.
+       */
       void nextEvent();
 
-      // template <class T>
-      // T * setEvent(T *event) {
-      //   auto oldCurrent = this->currentEvent;
-      //   this->currentEvent = event;
-      //   if(this->hasInitialized && event != nullptr) event->start(oldCurrent);
-      //   delete oldCurrent;
-      //   return event;
-      // }
-
       void onStart() override;
       void onDispose() override;
 

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

@@ -0,0 +1,58 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "VNEvent.hpp"
+#include "scene/SceneItem.hpp"
+#include "display/animation/SimplerCallbackAnimation.hpp"
+
+#define VN_POSITION_EVENT_VALUE_UNCHANGED -123456789
+
+namespace Dawn {
+  class VNPositionEvent : public VNEvent {
+    public:
+      float_t x = VN_POSITION_EVENT_VALUE_UNCHANGED;
+      float_t y = VN_POSITION_EVENT_VALUE_UNCHANGED;
+      float_t z = VN_POSITION_EVENT_VALUE_UNCHANGED;
+      SceneItem *item = nullptr;
+      float_t duration;
+
+    protected:
+      SimplerCallbackAnimation<glm::vec3> animation;
+
+      void onStart() override {
+        assertNotNull(item);
+
+        auto start = item->transform.getLocalPosition();
+        auto destination = glm::vec3(
+          x == VN_POSITION_EVENT_VALUE_UNCHANGED ? start.x : x,
+          y == VN_POSITION_EVENT_VALUE_UNCHANGED ? start.y : y,
+          z == VN_POSITION_EVENT_VALUE_UNCHANGED ? start.z : z
+        );
+
+        if(duration > 0) {
+          animation.clear();
+
+          animation.addKeyframe(0, start);
+          animation.addKeyframe(duration, destination);
+
+          animation.callback = [&](glm::vec3 v){
+            this->item->transform.setLocalPosition(v);
+          };
+
+          useEvent([&]() {
+            this->next();
+          }, animation.event2AnimationEnd); 
+
+          useEvent([&](float_t delta) {
+            animation.tick(delta);
+          }, getScene()->eventSceneUpdate);
+        } else {
+          this->item->transform.setLocalPosition(destination);
+          this->next();
+        }
+      }
+  };
+}

src/dawn/state/StateEvent.hpp

@@ -39,8 +39,9 @@ namespace Dawn {
        * @param args Arguments for this event to pass to the listeners.
        */
       void invoke(A... args) {
-        auto it = this->_eventListeners.begin();
-        while(it != this->_eventListeners.end()) {
+        auto copy = this->_eventListeners;
+        auto it = copy.begin();
+        while(it != copy.end()) {
           it->listener(args...);
           ++it;
         }

src/dawnliminal/scenes/HelloWorldScene.hpp

@@ -9,6 +9,7 @@
 #include "prefabs/SimpleSpinningCubePrefab.hpp"
 #include "games/vn/components/VNManager.hpp"
 #include "games/vn/events/VNDummyEvent.hpp"
+#include "games/vn/events/VNPositionEvent.hpp"
 
 namespace Dawn {
   class HelloWorldScene : public Scene {
@@ -29,7 +30,14 @@ namespace Dawn {
         auto vnManager = vnItem->addComponent<VNManager>();
 
         auto eventTest = vnManager->createEvent<VNDummyEvent>();
+
+        auto positionEvent = vnManager->createEvent<VNPositionEvent>();
+        positionEvent->x = 2.0f;
+        positionEvent->item = cube;
+        positionEvent->duration = 3.0f;
+
         eventTest
+          ->then(positionEvent)
           ->then(vnManager->createEvent<VNDummyEvent>())
           ->then(vnManager->createEvent<VNDummyEvent>())
         ;