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physics: Prevent adding same Physical to more than one PhysicalNode

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Also silently ignore if the same Physical is added to the same PhysicalNode more than once.
This commit is contained in:
rdb 2021-03-21 13:00:08 +01:00
parent 52c0e2759e
commit 1c754738bd
1 changed files with 7 additions and 3 deletions
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10
panda/src/physics/physicalNode.I
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@ -42,10 +42,14 @@ get_num_physicals() const {
}
/**
* Adds a Physical to this PhysicalNode. If it is already added to this node,
* does nothing. It is an error to add a Physical to multiple PhysicalNodes.
*/
INLINE void PhysicalNode::
add_physical(Physical *physical) {
_physicals.push_back(physical);
physical->_physical_node = this;
if (physical->_physical_node != this) {
nassertv(physical->_physical_node == nullptr);
_physicals.push_back(physical);
physical->_physical_node = this;
}
}