From b2ec18f943fc91fdc2869026f394e8e94c627678 Mon Sep 17 00:00:00 2001
From: Christian Semmler <mail@csemmler.com>
Date: Mon, 25 Sep 2023 14:58:15 -0400
Subject: [PATCH] Implement/match MxDSParallelAction (#138)

* Implement/match MxDSParallelAction

* Fix type

* Remove space

* Add neccessary MxDSMultiAction functions
---
 LEGO1/mxdsaction.cpp         |  4 +-
 LEGO1/mxdsaction.h           |  5 ++-
 LEGO1/mxdsmediaaction.h      |  1 +
 LEGO1/mxdsmultiaction.h      |  2 +
 LEGO1/mxdsparallelaction.cpp | 72 ++++++++++++++++++++++++++++++++++++
 LEGO1/mxdsparallelaction.h   |  5 +++
 6 files changed, 86 insertions(+), 3 deletions(-)

diff --git a/LEGO1/mxdsaction.cpp b/LEGO1/mxdsaction.cpp
index cccea39c..536fbd8a 100644
--- a/LEGO1/mxdsaction.cpp
+++ b/LEGO1/mxdsaction.cpp
@@ -96,8 +96,8 @@ void MxDSAction::Deserialize(char **p_source, MxS16 p_unk24)
 
   this->m_flags = *(MxU32*) *p_source;
   *p_source += sizeof(MxU32);
-  this->m_startTime = *(DWORD*) *p_source;
-  *p_source += sizeof(DWORD);
+  this->m_startTime = *(MxLong*) *p_source;
+  *p_source += sizeof(MxLong);
   this->m_duration = *(MxLong*) *p_source;
   *p_source += sizeof(MxLong);
   this->m_loopCount = *(MxS32*) *p_source;
diff --git a/LEGO1/mxdsaction.h b/LEGO1/mxdsaction.h
index ce54cfc4..7d9d2f0c 100644
--- a/LEGO1/mxdsaction.h
+++ b/LEGO1/mxdsaction.h
@@ -13,6 +13,7 @@ class MxDSAction : public MxDSObject
   enum
   {
     Flag_Looping = 0x01,
+    Flag_Bit3 = 0x04,
     Flag_Enabled = 0x20,
     Flag_Parsed = 0x80,
   };
@@ -53,15 +54,17 @@ class MxDSAction : public MxDSObject
   inline void SetFlags(MxU32 m_flags) { this->m_flags = m_flags; }
   inline char *GetExtraData() { return m_extraData; }
   inline MxU16 GetExtraLength() const { return m_extraLength; }
+  inline MxLong GetStartTime() const { return m_startTime; }
   inline const MxVector3Data &GetLocation() const { return m_location; }
   inline void SetOmni(MxOmni *p_omni) { m_omni = p_omni; }
 
   inline MxBool IsLooping() const { return this->m_flags & Flag_Looping; }
+  inline MxBool IsBit3() const { return this->m_flags & Flag_Bit3; }
 
 private:
   MxU32 m_sizeOnDisk;
   MxU32 m_flags;
-  DWORD m_startTime;
+  MxLong m_startTime;
 
 protected:
   MxLong m_duration;
diff --git a/LEGO1/mxdsmediaaction.h b/LEGO1/mxdsmediaaction.h
index f3c03839..cc710425 100644
--- a/LEGO1/mxdsmediaaction.h
+++ b/LEGO1/mxdsmediaaction.h
@@ -34,6 +34,7 @@ class MxDSMediaAction : public MxDSAction
   void CopyMediaSrcPath(const char *p_mediaSrcPath);
 
   inline MxS32 GetMediaFormat() const { return this->m_mediaFormat; }
+  inline MxLong GetSustainTime() const { return this->m_sustainTime; }
 private:
   MxU32 m_sizeOnDisk;
   char *m_mediaSrcPath;
diff --git a/LEGO1/mxdsmultiaction.h b/LEGO1/mxdsmultiaction.h
index 21b1dc03..4063343c 100644
--- a/LEGO1/mxdsmultiaction.h
+++ b/LEGO1/mxdsmultiaction.h
@@ -39,6 +39,8 @@ class MxDSMultiAction : public MxDSAction
 
 private:
   MxU32 m_sizeOnDisk;
+
+protected:
   MxDSActionList *m_actions;
 };
 
diff --git a/LEGO1/mxdsparallelaction.cpp b/LEGO1/mxdsparallelaction.cpp
index 2e0d66da..564e39c6 100644
--- a/LEGO1/mxdsparallelaction.cpp
+++ b/LEGO1/mxdsparallelaction.cpp
@@ -1,4 +1,5 @@
 #include "mxdsparallelaction.h"
+#include "mxdsmediaaction.h"
 
 DECOMP_SIZE_ASSERT(MxDSParallelAction, 0x9c)
 
@@ -12,3 +13,74 @@ MxDSParallelAction::MxDSParallelAction()
 MxDSParallelAction::~MxDSParallelAction()
 {
 }
+
+// OFFSET: LEGO1 0x100cb090
+void MxDSParallelAction::CopyFrom(MxDSParallelAction &p_dsParallelAction)
+{
+}
+
+// OFFSET: LEGO1 0x100cb0a0
+MxDSParallelAction &MxDSParallelAction::operator=(MxDSParallelAction &p_dsParallelAction)
+{
+  if (this == &p_dsParallelAction)
+    return *this;
+
+  MxDSMultiAction::operator=(p_dsParallelAction);
+  this->CopyFrom(p_dsParallelAction);
+  return *this;
+}
+
+// OFFSET: LEGO1 0x100cb0d0
+MxDSAction *MxDSParallelAction::Clone()
+{
+  MxDSParallelAction *clone = new MxDSParallelAction();
+
+  if (clone)
+    *clone = *this;
+
+  return clone;
+}
+
+// OFFSET: LEGO1 0x100cb160
+MxLong MxDSParallelAction::GetDuration()
+{
+  if (this->m_duration)
+    return this->m_duration;
+
+  MxDSActionListCursor cursor(this->m_actions);
+  MxDSAction *action;
+
+  while (cursor.Next(action)) {
+    if (!action)
+      continue;
+
+    MxLong duration = action->GetDuration();
+    if (duration == -1) {
+      this->m_duration = -1;
+      break;
+    }
+
+    duration += action->GetStartTime();
+    if (action->IsA("MxDSMediaAction")) {
+      MxLong sustainTime = ((MxDSMediaAction*) action)->GetSustainTime();
+
+      if (sustainTime == -1)
+        duration = -1;
+      else if (sustainTime)
+        duration += sustainTime;
+    }
+
+    if (duration == -1) {
+      this->m_duration = -1;
+      break;
+     }
+      
+    if (this->m_duration < duration)
+      this->m_duration = duration;
+  }
+
+  if (this->IsBit3())
+    this->m_duration *= this->m_loopCount;
+
+  return this->m_duration;
+}
\ No newline at end of file
diff --git a/LEGO1/mxdsparallelaction.h b/LEGO1/mxdsparallelaction.h
index 067dc82c..962ba34b 100644
--- a/LEGO1/mxdsparallelaction.h
+++ b/LEGO1/mxdsparallelaction.h
@@ -11,6 +11,9 @@ class MxDSParallelAction : public MxDSMultiAction
   MxDSParallelAction();
   virtual ~MxDSParallelAction() override;
 
+  void CopyFrom(MxDSParallelAction &p_dsParallelAction);
+  MxDSParallelAction &operator=(MxDSParallelAction &p_dsParallelAction);
+
   // OFFSET: LEGO1 0x100caf00
   inline virtual const char *ClassName() const override // vtable+0x0c
   {
@@ -24,6 +27,8 @@ class MxDSParallelAction : public MxDSMultiAction
     return !strcmp(name, MxDSParallelAction::ClassName()) || MxDSMultiAction::IsA(name);
   }
 
+  virtual MxLong GetDuration(); // vtable+24;
+  virtual MxDSAction *Clone(); // vtable+2c;
 };
 
 #endif // MXDSPARALLELACTION_H