From 15a906740732ae8b77babd7d81e859540f2bba9b Mon Sep 17 00:00:00 2001
From: jonschz <jonschz@users.noreply.github.com>
Date: Sat, 30 Nov 2024 15:18:11 +0100
Subject: [PATCH] Implement `Act2Actor::VTable0xa0`

---
 LEGO1/lego/legoomni/include/act2actor.h      |   6 +-
 LEGO1/lego/legoomni/src/actors/act2actor.cpp | 123 ++++++++++++++++++-
 2 files changed, 122 insertions(+), 7 deletions(-)

diff --git a/LEGO1/lego/legoomni/include/act2actor.h b/LEGO1/lego/legoomni/include/act2actor.h
index ec82cea2..18a795cd 100644
--- a/LEGO1/lego/legoomni/include/act2actor.h
+++ b/LEGO1/lego/legoomni/include/act2actor.h
@@ -2,6 +2,7 @@
 #define ACT2ACTOR_H
 
 #include "legoanimactor.h"
+#include "legopathedgecontainer.h"
 
 // VTABLE: LEGO1 0x100d6078 LegoPathActor
 // VTABLE: LEGO1 0x100d6148 LegoAnimActor
@@ -27,6 +28,7 @@ class Act2Actor : public LegoAnimActor {
 	MxS32 VTable0xa0() override;                                            // vtable+0xa0
 
 	void FUN_10019520();
+	void FUN_100192a0(undefined4 p_param);
 
 	// SYNTHETIC: LEGO1 0x1001a0a0
 	// Act2Actor::`scalar deleting destructor'
@@ -37,7 +39,7 @@ class Act2Actor : public LegoAnimActor {
 
 private:
 	undefined m_unk0x1c;  // 0x1c
-	undefined m_unk0x1d;  // 0x1d
+	MxS8 m_unk0x1d;       // 0x1d
 	undefined m_unk0x1e;  // 0x1e
 	MxBool m_unk0x1f;     // 0x1f
 	undefined4 m_unk0x20; // 0x20
@@ -50,7 +52,7 @@ class Act2Actor : public LegoAnimActor {
 	undefined4 m_unk0x3c; // 0x3c
 	undefined m_unk0x40;  // 0x40
 	undefined4 m_unk0x44; // 0x44
-	undefined m_unk0x48;  // 0x48
+	MxS8 m_unk0x48;       // 0x48
 	undefined4 m_unk0x4c; // 0x4c
 };
 
diff --git a/LEGO1/lego/legoomni/src/actors/act2actor.cpp b/LEGO1/lego/legoomni/src/actors/act2actor.cpp
index d582db05..d958d785 100644
--- a/LEGO1/lego/legoomni/src/actors/act2actor.cpp
+++ b/LEGO1/lego/legoomni/src/actors/act2actor.cpp
@@ -9,7 +9,8 @@ DECOMP_SIZE_ASSERT(Act2Actor, 0x1a8)
 DECOMP_SIZE_ASSERT(Act2Actor::UnknownListStructure, 0x20)
 
 // TODO: Copy the data once we know more about its fields. Total: 10 entries
-// // GLOBAL: LEGO1 0x100f0db8
+// GLOBAL: LEGO1 0x100f0db8
+// GLOBAL: BETA10 0x101dbd00
 Act2Actor::UnknownListStructure g_unk0x100f0db8[] = {{{0}, 0, {0}}};
 
 // FUNCTION: LEGO1 0x100187e0
@@ -82,6 +83,12 @@ void Act2Actor::SetWorldSpeed(MxFloat p_worldSpeed)
 	m_unk0x44 = 0;
 }
 
+// FUNCTION: LEGO1 0x100192a0
+void Act2Actor::FUN_100192a0(undefined4 p_param)
+{
+	// TODO
+}
+
 // STUB: LEGO1 0x10019520
 // STUB: BETA10 0x1000d4d6
 void Act2Actor::FUN_10019520()
@@ -89,12 +96,118 @@ void Act2Actor::FUN_10019520()
 	// TODO
 }
 
-// STUB: LEGO1 0x100195a0
-// STUB: BETA10 0x1000d7d3
+// FUNCTION: LEGO1 0x100195a0
+// FUNCTION: BETA10 0x1000d7d3
 MxS32 Act2Actor::VTable0xa0()
 {
-	// TODO
-	return 0;
+	undefined4 newLocation;
+
+	CurrentWorld();
+	MxU16 randomVal = rand() / (RAND_MAX / 2) + 1;
+
+	if (m_unk0x48 == 8 && m_unk0x1d != 8) {
+		newLocation = 8;
+	}
+	else {
+		switch (m_unk0x1d) {
+		case 0:
+			if (randomVal == 1) {
+				newLocation = 3;
+			}
+			else {
+				newLocation = 7;
+			}
+			break;
+		case 1:
+			if (randomVal == 1) {
+				newLocation = 2;
+			}
+			else {
+				newLocation = 4;
+			}
+			break;
+		case 2:
+			if (randomVal == 1) {
+				newLocation = 3;
+			}
+			else {
+				newLocation = 6;
+			}
+			break;
+		case 3:
+			if (randomVal == 1) {
+				newLocation = 5;
+			}
+			else {
+				newLocation = 1;
+			}
+			break;
+		case 4:
+			if (randomVal == 1) {
+				newLocation = 7;
+			}
+			else {
+				newLocation = 0;
+			}
+			break;
+		case 5:
+			if (randomVal == 1) {
+				newLocation = 6;
+			}
+			else {
+				newLocation = 1;
+			}
+			break;
+		case 6:
+			if (randomVal == 1) {
+				newLocation = 0;
+			}
+			else {
+				newLocation = 4;
+			}
+			break;
+		case 7:
+			if (randomVal == 1) {
+				newLocation = 2;
+			}
+			else {
+				newLocation = 5;
+			}
+			break;
+		case 8:
+			if (randomVal == 1) {
+				newLocation = 0;
+			}
+			else {
+				newLocation = 4;
+			}
+		}
+	}
+
+	undefined4 firstChoice = newLocation;
+
+	if (m_unk0x48 < 7 || g_unk0x100f0db8[m_unk0x1d].m_unk0x1c) {
+		while (g_unk0x100f0db8[newLocation].m_unk0x1c || m_unk0x1d == newLocation) {
+			if (newLocation == 7) {
+				newLocation = 0;
+			}
+			else {
+				newLocation++;
+			}
+
+			assert(newLocation != firstChoice);
+		}
+	}
+
+	m_unk0x1d = newLocation;
+	FUN_100192a0(newLocation);
+
+	if (m_grec) {
+		return SUCCESS;
+	}
+	else {
+		return FAILURE;
+	}
 }
 
 // FUNCTION: LEGO1 0x1001a180