CallMethod: Store result on the blackboard

bt/tasks/utility/bt_call_method.cpp

@@ -12,6 +12,7 @@
 #include "bt_call_method.h"
 
 #include "../../../util/limbo_compat.h"
+#include "../../../util/limbo_utility.h"
 
 //**** Setters / Getters
 
@@ -33,11 +34,16 @@ void BTCallMethod::set_include_delta(bool p_include_delta) {
 	emit_changed();
 }
 
-void BTCallMethod::set_args(Array p_args) {
+void BTCallMethod::set_args(TypedArray<BBVariant> p_args) {
 	args = p_args;
 	emit_changed();
 }
 
+void BTCallMethod::set_result_var(const String &p_result_var) {
+	result_var = p_result_var;
+	emit_changed();
+}
+
 //**** Task Implementation
 
 PackedStringArray BTCallMethod::get_configuration_warnings() {
@@ -63,10 +69,11 @@ String BTCallMethod::_generate_name() {
 		}
 		args_str += vformat("%s", args).trim_prefix("[").trim_suffix("]");
 	}
-	return vformat("CallMethod %s(%s)  node: %s",
+	return vformat("CallMethod %s(%s)  node: %s  %s",
-			(method != StringName() ? method : "???"),
+			method != StringName() ? method : "???",
 			args_str,
-			(node_param.is_valid() && !node_param->to_string().is_empty() ? node_param->to_string() : "???"));
+			node_param.is_valid() && !node_param->to_string().is_empty() ? node_param->to_string() : "???",
+			result_var.is_empty() ? "" : LW_NAME(output_var_prefix) + LimboUtility::get_singleton()->decorate_var(result_var));
 }
 
 BT::Status BTCallMethod::_tick(double p_delta) {
@@ -75,6 +82,8 @@ BT::Status BTCallMethod::_tick(double p_delta) {
 	Object *obj = node_param->get_value(get_agent(), get_blackboard());
 	ERR_FAIL_COND_V_MSG(obj == nullptr, FAILURE, "BTCallMethod: Failed to get object: " + node_param->to_string());
 
+	Variant result;
+
 #ifdef LIMBOAI_MODULE
 	const Variant delta = include_delta ? Variant(p_delta) : Variant();
 	const Variant **argptrs = nullptr;
@@ -91,7 +100,7 @@ BT::Status BTCallMethod::_tick(double p_delta) {
 	}
 
 	Callable::CallError ce;
-	obj->callp(method, argptrs, argument_count, ce);
+	result = obj->callp(method, argptrs, argument_count, ce);
 	if (ce.error != Callable::CallError::CALL_OK) {
 		ERR_FAIL_V_MSG(FAILURE, "BTCallMethod: Error calling method: " + Variant::get_call_error_text(obj, method, argptrs, argument_count, ce) + ".");
 	}
@@ -105,9 +114,13 @@ BT::Status BTCallMethod::_tick(double p_delta) {
 	}
 
 	// TODO: Unsure how to detect call error, so we return SUCCESS for now...
-	obj->callv(method, call_args);
+	result = obj->callv(method, call_args);
 #endif // LIMBOAI_MODULE & LIMBOAI_GDEXTENSION
 
+	if (!result_var.is_empty()) {
+		get_blackboard()->set_var(result_var, result);
+	}
+
 	return SUCCESS;
 }
 
@@ -122,9 +135,12 @@ void BTCallMethod::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_args"), &BTCallMethod::get_args);
 	ClassDB::bind_method(D_METHOD("set_include_delta", "p_include_delta"), &BTCallMethod::set_include_delta);
 	ClassDB::bind_method(D_METHOD("is_delta_included"), &BTCallMethod::is_delta_included);
+	ClassDB::bind_method(D_METHOD("set_result_var", "p_result_var"), &BTCallMethod::set_result_var);
+	ClassDB::bind_method(D_METHOD("get_result_var"), &BTCallMethod::get_result_var);
 
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "node", PROPERTY_HINT_RESOURCE_TYPE, "BBNode"), "set_node_param", "get_node_param");
 	ADD_PROPERTY(PropertyInfo(Variant::STRING_NAME, "method"), "set_method", "get_method");
+	ADD_PROPERTY(PropertyInfo(Variant::STRING, "result_var"), "set_result_var", "get_result_var");
 	ADD_GROUP("Arguments", "args_");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "args_include_delta"), "set_include_delta", "is_delta_included");
 	ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "args"), "set_args", "get_args");

bt/tasks/utility/bt_call_method.h

@@ -25,6 +25,7 @@ private:
 	Ref<BBNode> node_param;
 	Array args;
 	bool include_delta = false;
+	String result_var;
 
 protected:
 	static void _bind_methods();
@@ -45,6 +46,9 @@ public:
 	void set_include_delta(bool p_include_delta);
 	bool is_delta_included() const { return include_delta; }
 
+	void set_result_var(const String &p_result_var);
+	String get_result_var() const { return result_var; }
+
 	virtual PackedStringArray get_configuration_warnings() override;
 
 	BTCallMethod();

util/limbo_string_names.cpp

@@ -136,4 +136,5 @@ LimboStringNames::LimboStringNames() {
 
 	EVENT_FINISHED = "finished";
 	repeat_forever.parse_utf8("Repeat ∞");
+	output_var_prefix.parse_utf8("➜");
 }

util/limbo_string_names.h

@@ -151,6 +151,7 @@ public:
 
 	String EVENT_FINISHED;
 	String repeat_forever;
+	String output_var_prefix;
 };
 
 #define LW_NAME(m_arg) LimboStringNames::get_singleton()->m_arg