From fa098fec09a2f192d39038349d78fe13118e7079 Mon Sep 17 00:00:00 2001
From: Serhii Snitsaruk <limbonaut@pm.me>
Date: Fri, 16 Dec 2022 12:13:03 +0100
Subject: [PATCH] Blackboard: Add erase_var()

---
 blackboard.cpp | 5 +++++
 blackboard.h   | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/blackboard.cpp b/blackboard.cpp
index faac7ef..0eea85c 100644
--- a/blackboard.cpp
+++ b/blackboard.cpp
@@ -31,6 +31,10 @@ bool Blackboard::has_var(const Variant &p_key) const {
 	return data.has(p_key) || (parent.is_valid() && parent->has_var(p_key));
 }
 
+void Blackboard::erase_var(const Variant &p_key) {
+	data.erase(p_key);
+}
+
 void Blackboard::prefetch_nodepath_vars(Node *p_node) {
 	ERR_FAIL_COND(p_node == nullptr);
 	for (int i = 0; i < data.size(); i++) {
@@ -52,6 +56,7 @@ void Blackboard::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("has_var", "p_key"), &Blackboard::has_var);
 	ClassDB::bind_method(D_METHOD("set_parent_scope", "p_blackboard"), &Blackboard::set_parent_scope);
 	ClassDB::bind_method(D_METHOD("get_parent_scope"), &Blackboard::get_parent_scope);
+	ClassDB::bind_method(D_METHOD("erase_var"), &Blackboard::erase_var);
 	ClassDB::bind_method(D_METHOD("prefetch_nodepath_vars", "p_node"), &Blackboard::prefetch_nodepath_vars);
 	ClassDB::bind_method(D_METHOD("top"), &Blackboard::top);
 }
\ No newline at end of file
diff --git a/blackboard.h b/blackboard.h
index 322dd15..b6134ee 100644
--- a/blackboard.h
+++ b/blackboard.h
@@ -31,6 +31,8 @@ public:
 	Variant get_var(const Variant &p_key, const Variant &p_default) const;
 	void set_var(const Variant &p_key, const Variant &p_value);
 	bool has_var(const Variant &p_key) const;
+	void erase_var(const Variant &p_key);
+
 	void prefetch_nodepath_vars(Node *p_node);
 };