decompile EntityUnkId4B

src/st/no3/4AFF0.c

@@ -609,7 +609,66 @@ void func_801CF6D8(Entity* arg0) {
 
 INCLUDE_ASM("st/no3/nonmatchings/4AFF0", EntityWarg);
 
-INCLUDE_ASM("st/no3/nonmatchings/4AFF0", EntityUnkId4B);
+// func_psp_09254348
+void EntityUnkId4B(Entity* self) {
+    u16 lastAnimFrame;
+    Entity* previous;
+    s16* hitboxPtr;
+
+    previous = self - 1;
+
+    if (!self->step) {
+        InitializeEntity(&D_80180B9C);
+        self->animCurFrame = 0;
+        self->hitPoints = 0x7FFF;
+    }
+
+    self->posX.i.hi = previous->posX.i.hi;
+    self->posY.i.hi = previous->posY.i.hi;
+    self->facingLeft = previous->facingLeft;
+    lastAnimFrame = previous->animCurFrame;
+
+    if (lastAnimFrame) {
+
+        if (self->params) {
+
+            if (lastAnimFrame >= 109) {
+                lastAnimFrame -= 108;
+            } else if (lastAnimFrame >= 82) {
+                lastAnimFrame -= 62;
+            } else if (lastAnimFrame >= 76) {
+                lastAnimFrame -= 59;
+            } else if (lastAnimFrame >= 63) {
+                lastAnimFrame -= 56;
+            } else if (lastAnimFrame >= 51) {
+                lastAnimFrame -= 50;
+            } else {
+                lastAnimFrame -= 49;
+            }
+            hitboxPtr = &D_801836BC[lastAnimFrame * 8];
+
+        } else {
+            if (previous->params) {
+                if (lastAnimFrame >= 86 || lastAnimFrame >= 57) {
+                    lastAnimFrame -= 57;
+                } else {
+                    lastAnimFrame = 13;
+                }
+            } else if (lastAnimFrame >= 96) {
+                lastAnimFrame -= 48;
+            } else {
+                lastAnimFrame -= 1;
+            }
+            hitboxPtr = &D_801832EC[lastAnimFrame * 8];
+        }
+
+        hitboxPtr = hitboxPtr + 4;
+        self->hitboxOffX = *hitboxPtr++;
+        self->hitboxOffY = *hitboxPtr++;
+        self->hitboxWidth = *hitboxPtr++;
+        self->hitboxHeight = *hitboxPtr;
+    }
+}
 
 // A single "puff" of the warg explosion animation, transparent
 void EntityWargExplosionPuffTransparent(Entity* entity) {

src/st/no3/no3.h

@@ -153,6 +153,9 @@ extern const char* D_80181ACC[];
 extern s16 D_80181AD4[];
 extern s16 D_80181AE0[];
 extern Point16 D_80181AEC[];
+extern s16 D_801832EC[];
+extern s16 D_801836BC[];
+extern u16 D_80180B9C;
 
 // *** EntityDeath Animations *** //
 extern u8 D_80181B04[];