Fixed some bugs with AI

src/dawn/poker/visualnovel/PokerDetermineBetterEvent.hpp

@@ -15,7 +15,7 @@ namespace Dawn {
       IVisualNovelEvent * eventAiBet = nullptr;
       IVisualNovelEvent * eventHumanBet = nullptr;
 
-      void onStart() override;
+      void onStart(IVisualNovelEvent *previous) override;
       bool_t onUpdate() override;
       void onEnd() override;
 
@@ -37,7 +37,6 @@ namespace Dawn {
       T * whenEveryoneFolded(T *event) {
         assertNotNull(event);
         this->eventEveryoneFolded = event;
-        event->previous = this;
         return event;
       }
 
@@ -51,7 +50,6 @@ namespace Dawn {
       T * whenBettingFinished(T *event) {
         assertNotNull(event);
         this->eventBettingFinished = event;
-        event->previous = this;
         return event;
       }
 
@@ -66,7 +64,6 @@ namespace Dawn {
       T * whenTurn(T *event) {
         assertNotNull(event);
         this->eventTurn = event;
-        event->previous = this;
         return event;
       }
 
@@ -80,7 +77,6 @@ namespace Dawn {
       T * whenAiBet(T *event) {
         assertNotNull(event);
         this->eventAiBet = event;
-        event->previous = this;
         return event;
       }
 
@@ -94,7 +90,6 @@ namespace Dawn {
       T * whenHumanBet(T *event) {
         assertNotNull(event);
         this->eventHumanBet = event;
-        event->previous = this;
         return event;
       }