From b6f947c559ba14a9876898b0a95bbb67e0880dc7 Mon Sep 17 00:00:00 2001
From: guymakinggames <66076221+guymakinggames@users.noreply.github.com>
Date: Tue, 14 Apr 2026 21:14:11 +0100
Subject: [PATCH] MapObj: Implement `FastenerObjSpace` (#995)

---
 data/file_list.yml              | 18 +++++++-------
 src/MapObj/FastenerObjSpace.cpp | 44 +++++++++++++++++++++++++++++++++
 src/MapObj/FastenerObjSpace.h   | 18 ++++++++++++++
 3 files changed, 71 insertions(+), 9 deletions(-)
 create mode 100644 src/MapObj/FastenerObjSpace.cpp
 create mode 100644 src/MapObj/FastenerObjSpace.h

diff --git a/data/file_list.yml b/data/file_list.yml
index 9b0b43b5..64c53263 100644
--- a/data/file_list.yml
+++ b/data/file_list.yml
@@ -69085,40 +69085,40 @@ MapObj/FastenerObjSpace.o:
   - offset: 0x27e1bc
     size: 124
     label: _ZN16FastenerObjSpaceC2EPKc
-    status: NotDecompiled
+    status: Matching
   - offset: 0x27e238
     size: 136
     label: _ZN16FastenerObjSpaceC1EPKc
-    status: NotDecompiled
+    status: Matching
   - offset: 0x27e2c0
     size: 112
     label: _ZN16FastenerObjSpace4initERKN2al13ActorInitInfoE
-    status: NotDecompiled
+    status: Matching
   - offset: 0x27e330
     size: 56
     label: _ZN16FastenerObjSpace6appearEv
-    status: NotDecompiled
+    status: Matching
   - offset: 0x27e368
     size: 44
     label: _ZN16FastenerObjSpace9disappearEv
-    status: NotDecompiled
+    status: Matching
   - offset: 0x27e394
     size: 4
     label: _ZN16FastenerObjSpace7exeWaitEv
-    status: NotDecompiled
+    status: Matching
   - offset: 0x27e398
     size: 92
     label: _ZN16FastenerObjSpace12exeDisappearEv
-    status: NotDecompiled
+    status: Matching
   - offset: 0x27e3f4
     size: 8
     label: _ZNK12_GLOBAL__N_123FastenerObjSpaceNrvWait7executeEPN2al11NerveKeeperE
-    status: NotDecompiled
+    status: Matching
     guess: true
   - offset: 0x27e3fc
     size: 96
     label: _ZNK12_GLOBAL__N_128FastenerObjSpaceNrvDisappear7executeEPN2al11NerveKeeperE
-    status: NotDecompiled
+    status: Matching
     guess: true
 MapObj/FastenerRailKeeper.o:
   '.text':
diff --git a/src/MapObj/FastenerObjSpace.cpp b/src/MapObj/FastenerObjSpace.cpp
new file mode 100644
index 00000000..0c34a383
--- /dev/null
+++ b/src/MapObj/FastenerObjSpace.cpp
@@ -0,0 +1,44 @@
+#include "MapObj/FastenerObjSpace.h"
+
+#include "Library/LiveActor/ActorClippingFunction.h"
+#include "Library/LiveActor/ActorInitUtil.h"
+#include "Library/LiveActor/ActorModelFunction.h"
+#include "Library/Nerve/NerveSetupUtil.h"
+#include "Library/Nerve/NerveUtil.h"
+
+namespace {
+NERVE_IMPL(FastenerObjSpace, Wait);
+NERVE_IMPL(FastenerObjSpace, Disappear);
+NERVES_MAKE_NOSTRUCT(FastenerObjSpace, Wait, Disappear);
+}  // namespace
+
+FastenerObjSpace::FastenerObjSpace(const char* name) : al::LiveActor(name) {}
+
+void FastenerObjSpace::init(const al::ActorInitInfo& info) {
+    al::initActorWithArchiveName(this, info, "FastenerSpace", nullptr);
+    al::initNerve(this, &Wait, 0);
+    makeActorAlive();
+}
+
+void FastenerObjSpace::appear() {
+    al::LiveActor::appear();
+    al::setModelAlphaMask(this, 1.0f);
+    al::setNerve(this, &Wait);
+}
+
+void FastenerObjSpace::disappear() {
+    al::invalidateClipping(this);
+    al::setNerve(this, &Disappear);
+}
+
+void FastenerObjSpace::exeWait() {
+    if (al::isFirstStep(this)) {
+    }
+}
+
+void FastenerObjSpace::exeDisappear() {
+    f32 rate = al::calcNerveRate(this, 60);
+    al::setModelAlphaMask(this, 1.0f - rate);
+    if (al::isGreaterStep(this, 60))
+        kill();
+}
diff --git a/src/MapObj/FastenerObjSpace.h b/src/MapObj/FastenerObjSpace.h
new file mode 100644
index 00000000..4e49f8f3
--- /dev/null
+++ b/src/MapObj/FastenerObjSpace.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#include "Library/LiveActor/LiveActor.h"
+
+class FastenerObjSpace : public al::LiveActor {
+public:
+    FastenerObjSpace(const char* name);
+    void init(const al::ActorInitInfo& info) override;
+    void appear() override;
+    void disappear();
+    void exeWait();
+    void exeDisappear();
+
+private:
+    al::LiveActor* mLinkActor = nullptr;
+};
+
+static_assert(sizeof(FastenerObjSpace) == 0x110);