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BlackboardPlan: Allow passing different prefetch root for the base plan 

(cherry picked from commit a8a0f24492)
This commit is contained in:
Serhii Snitsaruk 2024-09-15 14:16:54 +02:00
parent 5ac6cda415
commit 65a1a3d46b
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GPG Key ID: A965EF8799FFEC2D
2 changed files with 25 additions and 27 deletions
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47
blackboard/blackboard_plan.cpp
View File

@ -387,33 +387,16 @@ void BlackboardPlan::sync_with_base_plan() {
}
}
// Add a variable duplicate to the blackboard, optionally with NodePath prefetch.
inline void bb_add_var_dup_with_prefetch(const Ref<Blackboard> &p_blackboard, const StringName &p_name, const BBVariable &p_var, bool p_prefetch, Node *p_node) {
if (unlikely(p_prefetch && p_var.get_type() == Variant::NODE_PATH)) {
Node *n = p_node->get_node_or_null(p_var.get_value());
BBVariable var = p_var.duplicate(true);
if (n != nullptr) {
var.set_value(n);
} else {
ERR_PRINT(vformat("BlackboardPlan: Prefetch failed for variable $%s with value: %s", p_name, p_var.get_value()));
var.set_value(Variant());
}
p_blackboard->assign_var(p_name, var);
} else {
p_blackboard->assign_var(p_name, p_var.duplicate(true));
}
}
Ref<Blackboard> BlackboardPlan::create_blackboard(Node *p_node, const Ref<Blackboard> &p_parent_scope) {
ERR_FAIL_COND_V(p_node == nullptr && prefetch_nodepath_vars, memnew(Blackboard));
Ref<Blackboard> BlackboardPlan::create_blackboard(Node *p_prefetch_root, const Ref<Blackboard> &p_parent_scope, Node *p_prefetch_root_for_base_plan) {
ERR_FAIL_COND_V(p_prefetch_root == nullptr && prefetch_nodepath_vars, memnew(Blackboard));
Ref<Blackboard> bb = memnew(Blackboard);
bb->set_parent(p_parent_scope);
populate_blackboard(bb, true, p_node);
populate_blackboard(bb, true, p_prefetch_root, p_prefetch_root_for_base_plan);
return bb;
}
void BlackboardPlan::populate_blackboard(const Ref<Blackboard> &p_blackboard, bool overwrite, Node *p_node) {
ERR_FAIL_COND(p_node == nullptr && prefetch_nodepath_vars);
void BlackboardPlan::populate_blackboard(const Ref<Blackboard> &p_blackboard, bool overwrite, Node *p_prefetch_root, Node *p_prefetch_root_for_base_plan) {
ERR_FAIL_COND(p_prefetch_root == nullptr && prefetch_nodepath_vars);
ERR_FAIL_COND(p_blackboard.is_null());
for (const Pair<StringName, BBVariable> &p : var_list) {
if (p_blackboard->has_local_var(p.first) && !overwrite) {
@ -429,7 +412,21 @@ void BlackboardPlan::populate_blackboard(const Ref<Blackboard> &p_blackboard, bo
}
bool has_mapping = parent_scope_mapping.has(p.first);
bool do_prefetch = !has_mapping && prefetch_nodepath_vars;
bb_add_var_dup_with_prefetch(p_blackboard, p.first, p.second, do_prefetch, p_node);
// Add a variable duplicate to the blackboard, optionally with NodePath prefetch.
BBVariable var = p.second.duplicate(true);
if (unlikely(do_prefetch && p.second.get_type() == Variant::NODE_PATH)) {
Node *prefetch_root = !is_derived() || is_derived_var_changed(p.first) ? p_prefetch_root : p_prefetch_root_for_base_plan;
Node *n = prefetch_root->get_node_or_null(p.second.get_value());
if (n != nullptr) {
var.set_value(n);
} else {
ERR_PRINT(vformat("BlackboardPlan: Prefetch failed for variable $%s with value: %s", p.first, p.second.get_value()));
var.set_value(Variant());
}
}
p_blackboard->assign_var(p.first, var);
if (has_mapping) {
StringName target_var = parent_scope_mapping[p.first];
if (target_var != StringName()) {
@ -450,8 +447,8 @@ void BlackboardPlan::_bind_methods() {
ClassDB::bind_method(D_METHOD("sync_with_base_plan"), &BlackboardPlan::sync_with_base_plan);
ClassDB::bind_method(D_METHOD("set_parent_scope_plan_provider", "callable"), &BlackboardPlan::set_parent_scope_plan_provider);
ClassDB::bind_method(D_METHOD("get_parent_scope_plan_provider"), &BlackboardPlan::get_parent_scope_plan_provider);
ClassDB::bind_method(D_METHOD("create_blackboard", "node", "parent_scope"), &BlackboardPlan::create_blackboard, DEFVAL(Ref<Blackboard>()));
ClassDB::bind_method(D_METHOD("populate_blackboard", "blackboard", "overwrite", "node"), &BlackboardPlan::populate_blackboard);
ClassDB::bind_method(D_METHOD("create_blackboard", "prefetch_root", "parent_scope", "prefetch_root_for_base_plan"), &BlackboardPlan::create_blackboard, DEFVAL(Ref<Blackboard>()), DEFVAL(Variant()));
ClassDB::bind_method(D_METHOD("populate_blackboard", "blackboard", "overwrite", "prefetch_root", "prefetch_root_for_base_plan"), &BlackboardPlan::populate_blackboard, DEFVAL(Variant()));
// To avoid cluttering the member namespace, we do not export unnecessary properties in this class.
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "prefetch_nodepath_vars", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_STORAGE), "set_prefetch_nodepath_vars", "is_prefetching_nodepath_vars");

5
blackboard/blackboard_plan.h
View File

@ -88,9 +88,10 @@ public:
void sync_with_base_plan();
_FORCE_INLINE_ bool is_derived() const { return base.is_valid(); }
_FORCE_INLINE_ bool is_derived_var_changed(const StringName &p_name) const { return base.is_valid() && var_map.has(p_name) && var_map[p_name].is_value_changed(); }
Ref<Blackboard> create_blackboard(Node *p_agent, const Ref<Blackboard> &p_parent_scope = Ref<Blackboard>());
void populate_blackboard(const Ref<Blackboard> &p_blackboard, bool overwrite, Node *p_node);
Ref<Blackboard> create_blackboard(Node *p_prefetch_root, const Ref<Blackboard> &p_parent_scope = Ref<Blackboard>(), Node *p_prefetch_root_for_base_plan = nullptr);
void populate_blackboard(const Ref<Blackboard> &p_blackboard, bool overwrite, Node *p_prefetch_root, Node *p_prefetch_root_for_base_plan = nullptr);
BlackboardPlan();
};