From 839807bc417e8bf639a935bb2ce7b3719cc8bfc0 Mon Sep 17 00:00:00 2001
From: Amorilia <amorilia@users.sourceforge.net>
Date: Tue, 31 Jan 2006 05:11:44 +0000
Subject: [PATCH] updated skeleton root calculation once more
---
nif_attrs.h | 37 ++++++++++++++++++++++++++++++++++++-
1 file changed, 36 insertions(+), 1 deletion(-)
diff --git a/nif_attrs.h b/nif_attrs.h
index e12e44ac..e0d8d485 100644
--- a/nif_attrs.h
+++ b/nif_attrs.h
@@ -1213,7 +1213,41 @@ public:
return blk_ref(-1);
}
- //Arbitrarily start at the first bone in the list
+ //Arbitrarily start at the first bone in the list, and get it's ancestors
+ /*NEW CODE BEGIN*/
+ // We want to get the closest common ancestor between the _owner and the bones
+ // So start with a list of ancestors of the first bone (this is just a random choice)
+ blk_ref block = bones[0];
+ blk_ref par = block->GetParent();
+ list<blk_ref> bone_pars;
+ while ( par.is_null() == false ) {
+ bone_pars.push_front(par);
+ par = par->GetParent();
+ };
+ // Now do the same with the owner.
+ block = _owner;
+ par = block->GetParent();
+ list<blk_ref> owner_pars;
+ while ( par.is_null() == false ) {
+ owner_pars.push_front(par);
+ par = par->GetParent();
+ };
+ // Now find closest common ancestor.
+ if ( owner_pars.empty() || bone_pars.empty() )
+ throw runtime_error("Skinning instance has no common parent with the bones it refers to (invalid NIF file?). Cannot set skeleton root.");
+ blk_ref skelroot;
+ list<blk_ref>::const_iterator bone_par_it = bone_pars.begin();
+ list<blk_ref>::const_iterator owner_par_it = owner_pars.begin();
+ while ( *bone_par_it == *owner_par_it ) {
+ skelroot = *bone_par_it;
+ bone_par_it++;
+ owner_par_it++;
+ };
+ if ( skelroot.is_null() )
+ throw runtime_error("Skinning instance has no common parent with the bones it refers to (invalid NIF file?). Cannot set skeleton root.");
+ return skelroot;
+ /*NEW CODE END*/
+ /*OLD CODE BEGIN
blk_ref block = bones[0];
blk_ref par;
int flags;
@@ -1248,6 +1282,7 @@ public:
//We didn't find the root this time, set block to par and try again
block = par;
}
+ OLD CODE END*/
}
string asString() const {
stringstream out;
--
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