From 73e944ddedb1fe9f3b1c406d4891d5c14c9765ac Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Wed, 28 Oct 2026 22:19:15 +0000
Subject: [PATCH] Decompile 2 functions in
 Source/Contents/Effects/EffectPrimitiveMotion.cpp,
 Source/Contents/Effects/EffectParticle.h

Batch #1789 by ragnarok-clanker: 0 byte-identical, 2 confirmed by peer review.

- fn_19795 EffectParticle::PrimChemical2: logic confirmed by peer review
- fn_19797 EffectParticle::PrimChemical: logic confirmed by peer review

Peer-reviewed-by: Yommy
Reviewed-by: ragnarok-clanker
---
 Source/Contents/Effects/EffectParticle.h      |  3 +
 .../Effects/EffectPrimitiveMotion.cpp         | 58 +++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/Source/Contents/Effects/EffectParticle.h b/Source/Contents/Effects/EffectParticle.h
index 92afaf4..2a8c3ab 100644
--- a/Source/Contents/Effects/EffectParticle.h
+++ b/Source/Contents/Effects/EffectParticle.h
@@ -25,6 +25,9 @@ struct EffectParticle : CRenderObject {
   void PrimBottom();
   void PrimBottomOut();
   void PrimBubbleDrop();
+  void PrimChemical2();
+  void PrimChemical3();
+  void PrimChemical();
 
   bool AdvanceFrame();
   void UpdateRecords();
diff --git a/Source/Contents/Effects/EffectPrimitiveMotion.cpp b/Source/Contents/Effects/EffectPrimitiveMotion.cpp
index 83eae37..fb4748c 100644
--- a/Source/Contents/Effects/EffectPrimitiveMotion.cpp
+++ b/Source/Contents/Effects/EffectPrimitiveMotion.cpp
@@ -1048,6 +1048,64 @@ void EffectParticle::PrimBubbleDrop() {
   }
 }
 
+// OFFSET: 0x00BBB9D0
+// FUNCTION: fn_19795
+void EffectParticle::PrimChemical2() {
+  FaceCamera(this->state.slots);
+
+  const AttachedEffect* master = this->state.master;
+  this->render.position[0] = master->render.position[0];
+  this->render.position[1] = master->render.position[1];
+  this->render.position[2] = master->render.position[2];
+
+  for (int index = 0; index < 4; ++index) {
+    EffectPrimitiveSlot& slot = this->state.slots[index];
+
+    if (slot.life != 1) {
+      continue;
+    }
+
+    ++slot.process;
+
+    if (slot.process <= 20) {
+      slot.alphaB += 4;
+    } else if (slot.process > 50) {
+      slot.alphaB -= 2;
+
+      if (slot.alphaB < 0) {
+        slot.alphaB = 0;
+      }
+    }
+  }
+}
+
+// OFFSET: 0x00BBBB40
+
+// OFFSET: 0x00BBBC40
+// FUNCTION: fn_19797
+void EffectParticle::PrimChemical() {
+  FaceCamera(this->state.slots);
+
+  for (int index = 0; index < 4; ++index) {
+    EffectPrimitiveSlot& slot = this->state.slots[index];
+
+    if (slot.life != 1) {
+      continue;
+    }
+
+    ++slot.process;
+
+    if (slot.process <= 10) {
+      slot.alphaB += 18;
+    } else if (slot.process > 20) {
+      slot.alphaB -= 15;
+
+      if (slot.alphaB < 0) {
+        slot.alphaB = 0;
+      }
+    }
+  }
+}
 // OFFSET: 0x00BB6F30
 // FUNCTION: fn_19779
 bool EffectParticle::UpdateHit6() {