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BlackboardPlan: Implement rudimentary mapping

This commit is contained in:
Serhii Snitsaruk 2024-05-13 23:21:55 +02:00
parent e55611a1a9
commit bdfe5f52c2
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GPG Key ID: A965EF8799FFEC2D
2 changed files with 63 additions and 9 deletions
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57
blackboard/blackboard_plan.cpp
View File

@ -24,6 +24,12 @@ bool BlackboardPlan::_set(const StringName &p_name, const Variant &p_value) {
}
return true;
}
if (name_str.begins_with("_mapping_")) {
StringName mapped_var_name = name_str.trim_prefix("_mapping_");
ERR_FAIL_COND_V(!has_var(mapped_var_name), false);
parent_scope_mapping[mapped_var_name] = p_value;
return true;
}
// * Storage
if (name_str.begins_with("var/")) {
@ -56,7 +62,20 @@ bool BlackboardPlan::_get(const StringName &p_name, Variant &r_ret) const {
// * Editor
if (var_map.has(p_name)) {
if (has_mapping(p_name)) {
r_ret = "Mapped to $" + parent_scope_mapping[p_name];
} else {
r_ret = var_map[p_name].get_value();
}
return true;
}
if (name_str.begins_with("_mapping_")) {
String mapped_var_name = name_str.trim_prefix("_mapping_");
if (parent_scope_mapping.has(mapped_var_name)) {
r_ret = parent_scope_mapping[mapped_var_name];
} else {
r_ret = StringName();
}
return true;
}
@ -90,22 +109,33 @@ void BlackboardPlan::_get_property_list(List<PropertyInfo> *p_list) const {
// * Editor
if (var.get_type() != Variant::NIL && (!is_derived() || !var_name.begins_with("_"))) {
if (has_mapping(var_name)) {
p_list->push_back(PropertyInfo(Variant::STRING, var_name, PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_READ_ONLY));
} else {
p_list->push_back(PropertyInfo(var.get_type(), var_name, var.get_hint(), var.get_hint_string(), PROPERTY_USAGE_EDITOR));
}
}
// * Storage
if (is_derived() && (!var.is_value_changed() || var.get_value() == base->var_map[var_name].get_value())) {
// Don't store variable if it's not modified in a derived plan.
// Variable is considered modified when it's marked as changed and its value is different from the base plan.
continue;
}
// * Storage
p_list->push_back(PropertyInfo(Variant::STRING, "var/" + var_name + "/name", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL));
p_list->push_back(PropertyInfo(Variant::INT, "var/" + var_name + "/type", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL));
p_list->push_back(PropertyInfo(var.get_type(), "var/" + var_name + "/value", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL));
p_list->push_back(PropertyInfo(Variant::INT, "var/" + var_name + "/hint", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL));
p_list->push_back(PropertyInfo(Variant::STRING, "var/" + var_name + "/hint_string", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL));
}
// * Mapping
if (is_mapping_allowed()) {
p_list->push_back(PropertyInfo(Variant::NIL, "Mapping", PROPERTY_HINT_NONE, "_mapping_", PROPERTY_USAGE_GROUP));
for (const Pair<StringName, BBVariable> &p : var_list) {
p_list->push_back(PropertyInfo(Variant::STRING_NAME, "_mapping_" + p.first, PROPERTY_HINT_NONE, "", PROPERTY_USAGE_DEFAULT));
}
}
}
bool BlackboardPlan::_property_can_revert(const StringName &p_name) const {
@ -131,6 +161,15 @@ void BlackboardPlan::set_base_plan(const Ref<BlackboardPlan> &p_base) {
notify_property_list_changed();
}
void BlackboardPlan::set_mapping_allowed(bool p_mapping_allowed) {
mapping_allowed = p_mapping_allowed;
emit_changed();
}
bool BlackboardPlan::has_mapping(const StringName &p_name) const {
return is_mapping_allowed() && parent_scope_mapping.has(p_name) && parent_scope_mapping[p_name] != StringName();
}
void BlackboardPlan::set_prefetch_nodepath_vars(bool p_enable) {
prefetch_nodepath_vars = p_enable;
emit_changed();
@ -335,12 +374,11 @@ inline void bb_add_var_dup_with_prefetch(const Ref<Blackboard> &p_blackboard, co
}
}
Ref<Blackboard> BlackboardPlan::create_blackboard(Node *p_node) {
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> bb = memnew(Blackboard);
for (const Pair<StringName, BBVariable> &p : var_list) {
bb_add_var_dup_with_prefetch(bb, p.first, p.second, prefetch_nodepath_vars, p_node);
}
bb->set_parent(p_parent_scope);
populate_blackboard(bb, false, p_node);
return bb;
}
@ -351,6 +389,13 @@ void BlackboardPlan::populate_blackboard(const Ref<Blackboard> &p_blackboard, bo
continue;
}
bb_add_var_dup_with_prefetch(p_blackboard, p.first, p.second, prefetch_nodepath_vars, p_node);
if (parent_scope_mapping.has(p.first)) {
StringName target_var = parent_scope_mapping[p.first];
if (target_var != StringName()) {
ERR_CONTINUE_MSG(p_blackboard->get_parent() == nullptr, vformat("BlackboardPlan: Cannot link variable $%s to parent scope because the parent scope is not set.", p.first));
p_blackboard->link_var(p.first, p_blackboard->get_parent(), target_var);
}
}
}
}

11
blackboard/blackboard_plan.h
View File

@ -36,6 +36,11 @@ private:
// and only the values can be different in those variables.
Ref<BlackboardPlan> base;
// Mapping between variables in this plan and their parent scope names.
// Used for linking variables to their parent scope counterparts upon Blackboard creation/population.
HashMap<StringName, StringName> parent_scope_mapping;
bool mapping_allowed = true;
// If true, NodePath variables will be prefetched, so that the vars will contain node pointers instead (upon BB creation/population).
bool prefetch_nodepath_vars = true;
@ -52,6 +57,10 @@ public:
void set_base_plan(const Ref<BlackboardPlan> &p_base);
Ref<BlackboardPlan> get_base_plan() const { return base; }
void set_mapping_allowed(bool p_mapping_allowed);
bool is_mapping_allowed() const { return mapping_allowed; }
bool has_mapping(const StringName &p_name) const;
void set_prefetch_nodepath_vars(bool p_enable);
bool is_prefetching_nodepath_vars() const;
@ -72,7 +81,7 @@ public:
void sync_with_base_plan();
_FORCE_INLINE_ bool is_derived() const { return base.is_valid(); }
Ref<Blackboard> create_blackboard(Node *p_agent);
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);
BlackboardPlan();