Decompile modelGetPart

src/include/commands.h

@@ -3404,12 +3404,15 @@
 	value,
 
 /**
- * Remove the necklace from the given chr.
+ * Toggle the visibility of part of the chr's model. It's used for Cassandra's
+ * necklace.
+ *
+ * modelpart should be a MODELPART constant, and refers to a node in the model.
  */
-#define remove_cass_necklace(chr) \
+#define chr_toggle_modelpart(chr, modelpart) \
 	mkshort(0x018c), \
 	chr, \
-	0x07,
+	modelpart,
 
 /**
  * Activate the given lift.
@@ -3910,11 +3913,18 @@
 	mkshort(portal), \
 	flag,
 
-#define set_object_part_visible(object, bool) \
+/**
+ * Shows or hides part of the object's model.
+ *
+ * modelpart should be a MODELPART constant, and refers to a node in the model.
+ *
+ * visible is a boolean. TRUE makes it visible. FALSE makes it invisible.
+ */
+#define object_set_modelpart_visible(object, modelpart, visible) \
 	mkshort(0x01d1), \
 	object, \
-	0xb7, \
-	bool,
+	modelpart, \
+	visible,
 
 /**
  * Emits sparks from the given chr.

src/include/constants.h

@@ -1458,6 +1458,16 @@
 #define MODEL_CETANDOORSIDE         0x01b7
 #define MODEL_BUDDYBRIDGE           0x01b8
 
+#define MODELNODETYPE_ROOT     0x01
+#define MODELNODETYPE_HEADSPOT 0x17
+
+#define MODELPART_MUZZLEFLASHRIGHT 0x0002
+#define MODELPART_MUZZLEFLASHLEFT  0x0003
+#define MODELPART_HUDPIECE         0x0004
+#define MODELPART_NECKLACE         0x0007
+#define MODELPART_006E             0x006e
+#define MODELPART_SKGANGWAY        0x00b7
+
 #define MOVEMODE_WALK     0
 #define MOVEMODE_BIKE     3
 #define MOVEMODE_GRAB     4

src/include/game/chr/chraction.h

@@ -323,7 +323,7 @@ s16 *teamGetChrIds(s32 team_id);
 s16 *squadronGetChrIds(s32 squadron_id);
 void audioMarkAsRecentlyPlayed(s16 audioid);
 bool audioWasNotPlayedRecently(s16 audioid);
-void func0f04cf90(struct chrdata *chr, s32 arg1);
+void chrToggleModelPart(struct chrdata *chr, s32 partnum);
 bool chrIsAvoiding(struct chrdata *chr);
 void chrEmitSparks(struct chrdata *chr);
 

src/include/game/chr/chraicommands.h

@@ -373,7 +373,7 @@
 /*0x0189*/ bool aiLiftGoToStop(void);
 /*0x018a*/ bool aiIfLiftAtStop(void);
 /*0x018b*/ bool aiConfigureRain(void);
-/*0x018c*/ bool aiChrToggleProp(void);
+/*0x018c*/ bool aiChrToggleModelPart(void);
 /*0x018d*/ bool aiActivateLift(void);
 /*0x018e*/ bool aiMiniSkedarTryPounce(void);
 /*0x018f*/ bool aiIfObjectDistanceToPadLessThan(void);
@@ -428,7 +428,7 @@
 /*0x01ce*/ bool aiSetPassiveMode(void);
 /*0x01cf*/ bool aiChrSetFiringInCutscene(void);
 /*0x01d0*/ bool aiSetPortalFlag(void);
-/*0x01d1*/ bool aiSetObjPartVisible(void);
+/*0x01d1*/ bool aiObjSetModelPartVisible(void);
 /*0x01d2*/ bool aiChrEmitSparks(void);
 /*0x01d3*/ bool aiSetDrCarollImages(void);
 /*0x01d4*/ bool ai01d4(void);

src/include/game/propobj.h

@@ -338,6 +338,6 @@ u32 func0f091030(void);
 void func0f0910ac(void);
 u32 func0f091250(void);
 u32 func0f0912dc(void);
-void objSetPartVisible(struct defaultobj *obj, s32 partnum, bool visible);
+void objSetModelPartVisible(struct defaultobj *obj, s32 partnum, bool visible);
 
 #endif

src/include/lib/lib_1a500.h

@@ -14,10 +14,10 @@ u32 func0001a740(void);
 u32 func0001a784(void);
 u32 func0001a7cc(void);
 u32 func0001a85c(void);
-struct model08_00 *func0001a91c(struct model08 *arg0, s32 arg1);
+struct modelnode *modelGetPart(struct model08 *arg0, s32 partnum);
 struct modelthing *func0001a9bc(void *modelfiledata, s32 arg1);
 u32 func0001a9e8(void);
-struct model10 *func0001aa1c(struct model *model, struct model08_00 *arg1);
+struct model10 *func0001aa1c(struct model *model, struct modelnode *node);
 u32 func0001ab0c(void);
 u32 func0001abc4(void);
 void func0001ad0c(struct model *model, struct coord *coord);
@@ -45,7 +45,7 @@ u32 func0001c81c(void);
 u32 func0001c868(void);
 u32 func0001c924(void);
 u32 func0001c950(void);
-void func0001cb0c(struct model *model, struct model08_00 *arg1);
+void func0001cb0c(struct model *model, struct modelnode *node);
 u32 func0001cc20(void);
 u32 func0001cd18(void);
 u32 func0001ce64(void);

src/include/types.h

@@ -155,16 +155,20 @@ struct stagethinglist {
 	u16 *things;
 };
 
-struct model08_00 {
-	u16 unk00;
+struct modelnode {
+	u16 type;
 	u32 unk04;
 };
 
 struct model08 {
-	struct model08_00 *unk00;
+	struct modelnode *rootnode;
 	struct stagethinglist *unk04;
-	u32 unk08;
-	u16 unk0c;
+
+	// This is a pointer to a variable length array of pointers to modelnodes,
+	// but the array is followed by an s16 array of part numbers.
+	struct modelnode **parts;
+
+	s16 numparts;
 	s16 unk0e;
 };
 
@@ -186,8 +190,7 @@ struct model0c {
 	/*0x38*/ f32 unk38;
 };
 
-// This seems to be a model component which can be turned on and off, like a
-// muzzle flash, Jo's hudpiece and probably Cass's necklace.
+// Suspected to be multiple structs, or a union based on the node type
 struct model10 {
 	union {
 		u16 u16;