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Fixed spBone_worldToLocalRotationY

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* crashes when bone has no parent
* doesn't calculate local rotation when bone has parent
This commit is contained in:
Borislav Stanimirov 2016-07-14 20:08:52 +03:00
parent 7e5aa7db2b
commit b795ba2f4e
1 changed files with 4 additions and 4 deletions
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2
spine-c/src/spine/Bone.c
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@ -213,7 +213,7 @@ float spBone_worldToLocalRotationX (spBone* self) {
float spBone_worldToLocalRotationY (spBone* self) { float spBone_worldToLocalRotationY (spBone* self) {
spBone* parent = self->parent; spBone* parent = self->parent;
if (self->parent) return self->rotation; if (!parent) return self->rotation;
return ATAN2(parent->a * self->d - parent->c * self->b, parent->d * self->b - parent->b * self->d) * RAD_DEG; return ATAN2(parent->a * self->d - parent->c * self->b, parent->d * self->b - parent->b * self->d) * RAD_DEG;
} }