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Fix AnimationBlendTree reset on resource loading

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When reset_state was called on an existing AnimationBlendTree, the
output node would disappear, causing some errors in the editor and
preventing animations to play properly.

This change ensures the output node is always present in the node tree.
This commit is contained in:
PouleyKetchoupp 2021-08-26 09:07:13 -07:00
parent f89adbf112
commit aae50da074
2 changed files with 8 additions and 1 deletions

7
scene/animation/animation_blend_tree.cpp

@ -1124,6 +1124,7 @@ void AnimationNodeBlendTree::_get_property_list(List<PropertyInfo> *p_list) cons
void AnimationNodeBlendTree::reset_state() {
graph_offset = Vector2();
nodes.clear();
_initialize_node_tree();
emit_changed();
emit_signal(SNAME("tree_changed"));
}
@ -1162,7 +1163,7 @@ void AnimationNodeBlendTree::_bind_methods() {
BIND_CONSTANT(CONNECTION_ERROR_CONNECTION_EXISTS);
}
AnimationNodeBlendTree::AnimationNodeBlendTree() {
void AnimationNodeBlendTree::_initialize_node_tree() {
Ref<AnimationNodeOutput> output;
output.instantiate();
Node n;
@ -1172,5 +1173,9 @@ AnimationNodeBlendTree::AnimationNodeBlendTree() {
nodes["output"] = n;
}
AnimationNodeBlendTree::AnimationNodeBlendTree() {
_initialize_node_tree();
}
AnimationNodeBlendTree::~AnimationNodeBlendTree() {
}

2
scene/animation/animation_blend_tree.h

@ -345,6 +345,8 @@ class AnimationNodeBlendTree : public AnimationRootNode {
void _tree_changed();
void _node_changed(const StringName &p_node);
void _initialize_node_tree();
protected:
static void _bind_methods();
bool _set(const StringName &p_name, const Variant &p_value);