Parallel event

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

@@ -15,7 +15,7 @@ VNManager::VNManager(SceneItem *item) :
 
 void VNManager::onStart() {
   if(this->currentEvent != nullptr) {
-    this->currentEvent->start(nullptr);
+    this->currentEvent->start(this, nullptr);
   }
 }
 
@@ -32,14 +32,6 @@ std::string VNManager::getFlag(std::string key) {
   return this->flags[key];
 }
 
-void VNManager::nextEvent() {
-  if(this->currentEvent == nullptr) return;
-  auto old = this->currentEvent;
-  old->end();
-  this->currentEvent = old->getNextEvent();
-  if(this->currentEvent != nullptr) this->currentEvent->start(old);
-}
-
 void VNManager::onDispose() {
   
 }

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

@@ -9,10 +9,17 @@
 namespace Dawn {
   class VNEvent;
 
-  class VNManager : public SceneItemComponent {
+  class IVNEventParent {
+    public:
+      VNEvent *currentEvent = nullptr;
+  };
+
+  class VNManager :
+    public SceneItemComponent,
+    public IVNEventParent
+  {
     protected:
       std::vector<VNEvent*> events;
-      VNEvent *currentEvent = nullptr;
       std::map<std::string, std::string> flags;
 
     public:
@@ -42,11 +49,6 @@ namespace Dawn {
        */
       void setEvent(VNEvent *event);
 
-      /**
-       * Ends the current event, and moves to the next one.
-       */
-      void nextEvent();
-
       /**
        * Sets a flag for the visual novel.
        * 

src/dawn/games/vn/events/VNEvent.cpp

@@ -11,7 +11,12 @@ void VNEvent::init(VNManager *manager) {
   this->manager = manager;
 }
 
-void VNEvent::start(VNEvent *previous) {
+void VNEvent::start(
+  IVNEventParent *parent,
+  VNEvent *previous
+) {
+  this->parent = parent;
+  finished = false;
   this->onStart();
 }
 
@@ -25,13 +30,20 @@ VNEvent * VNEvent::getNextEvent() {
 
 void VNEvent::next() {
   assertNotNull(this->manager);
-  assertTrue(this->manager->currentEvent == this);
-  this->manager->nextEvent();
+  assertNotNull(this->parent);
+
+  this->end();
+  auto next = this->getNextEvent();
+  this->manager->currentEvent = next;
+  if(next != nullptr) next->start(this->parent, this);
 }
 
 void VNEvent::end() {
+  this->finished = true;
   this->unsubscribeAllEvents();
   this->onEnd();
+
+  this->eventFinished.invoke();
 }
 
 void VNEvent::onStart() {}

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

@@ -9,24 +9,35 @@
 
 namespace Dawn {
   class VNEvent : public StateOwner {
+    public:
+      StateEvent<> eventFinished;
+
+      /**
+       * Invoked by a parent VN Manager. This is the start of the event.
+       * 
+       * @param parent The VN Event Parent. Usually the manager but not always.
+       * @param previous The previous event that was running before this one.
+       */
+      void start(
+        IVNEventParent *parent,
+        VNEvent *previous
+      );
+
     protected:
       VNManager *manager = nullptr;
+      IVNEventParent *parent = nullptr;
       VNEvent *doNext = nullptr;
       VNEvent *previous = nullptr;
+      bool_t finished = false;
 
       /**
        * Initializes the event. This is called by the VNManager, and should not
        * be called by anything else.
+       * 
        * @param manager The VNManager that is running this event.
        */
       void init(VNManager *manager);
 
-      /**
-       * Invoked by the VNManager, this is the start of the event.
-       * @param previous The previous event that was running before this one.
-       */
-      void start(VNEvent *previous);
-
       /**
        * Invoked by the VNManager, this is the end of the event. Perform the 
        * necessary cleanup, but remember that events may be re-started again

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

@@ -0,0 +1,39 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "VNEvent.hpp"
+
+namespace Dawn {
+  class VNParallelEvent :
+    public VNEvent,
+    public IVNEventParent
+  {
+    public:
+      std::vector<VNEvent*> events;
+
+    protected:
+      int32_t eventCount;
+      int32_t eventCompleteCount;
+
+      void onStart() override {
+        eventCount = 0;
+        eventCompleteCount = 0;
+
+        auto itEvents = this->events.begin();
+        while(itEvents != this->events.end()) {
+          auto event = *itEvents;
+          event->start(this, this);
+          eventCount++;
+
+          useEvent([&]{
+            eventCompleteCount++;
+            if(eventCompleteCount >= eventCount) this->next();
+          }, event->eventFinished);
+          itEvents++;
+        }
+      }
+  };
+}

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

@@ -8,10 +8,8 @@
 
 namespace Dawn {
   class VNWaitEvent : public VNAnimateEvent<float_t> {
-    public:
-
     protected:
-      void setValue(T value) override {
+      void setValue(float_t value) override {
         // Do nothing
       }
   };

src/dawnliminal/game/LiminalGame.cpp

@@ -10,6 +10,6 @@
 using namespace Dawn;
 
 Scene * Dawn::dawnGameGetInitialScene(DawnGame *game) {
-  // return new HelloWorldScene(game);
-  return new TestScene(game);
+  return new HelloWorldScene(game);
+  // return new TestScene(game);
 }

src/dawnliminal/scenes/HelloWorldScene.hpp

@@ -13,6 +13,8 @@
 #include "games/vn/events/VNPositionEvent.hpp"
 #include "games/vn/events/VNSetEvent.hpp"
 #include "games/vn/events/VNChoiceEvent.hpp"
+#include "games/vn/events/VNParallelEvent.hpp"
+#include "games/vn/events/VNWaitEvent.hpp"
 
 namespace Dawn {
   class HelloWorldScene : public Scene {
@@ -55,12 +57,21 @@ namespace Dawn {
         choiceEvent->choices["state2"] = "State 2";
         choiceEvent->choices["state3"] = "State 3";
 
+        auto parallelEvent = vnManager->createEvent<VNParallelEvent>();
+        auto wait0 = vnManager->createEvent<VNWaitEvent>();
+        wait0->duration = 1.0f;
+        parallelEvent->events.push_back(wait0);
+
+        auto wait1 = vnManager->createEvent<VNWaitEvent>();
+        wait1->duration = 3.0f;
+        parallelEvent->events.push_back(wait1);
 
         eventTest
+          ->then(parallelEvent)
           ->then(positionEvent)
-          ->then(vnTextEvent)
-          ->then(setPropertyEvent)
-          ->then(choiceEvent)
+          // ->then(vnTextEvent)
+          // ->then(setPropertyEvent)
+          // ->then(choiceEvent)
         ;
         vnManager->setEvent(eventTest);
       }