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improve error messages and checking

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This commit is contained in:
Chris Cromer 2022-04-16 15:54:05 -04:00
parent 3ad9bd9d99
commit 53ce0bd1ff
Signed by: cromer
GPG Key ID: FA91071797BEEEC2
3 changed files with 113 additions and 27 deletions
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4
src/state_machine/State.cpp
View File

@ -25,12 +25,12 @@ void State::_init()
void State::_state_enter(const String state, const Array args)
{
WARN_PRINT("State " + state + " is missing its _state_enter method!");
WARN_PRINT("State " + get_state_machine()->get_current_state() + " is missing its _state_enter method!");
}
void State::_state_exit(const String state, const Array args)
{
WARN_PRINT("State " + state + " is missing its _state_exit method!");
WARN_PRINT("State " + get_state_machine()->get_current_state() + " is missing its _state_exit method!");
}
void State::set_parent(Node *parent)

102
src/state_machine/StateMachine.cpp
View File

@ -34,7 +34,15 @@ void StateMachine::_ready()
connect("tree_entered", this, "_on_StateMachine_tree_entered");
connect("tree_exiting", this, "_on_StateMachine_tree_exiting");
parent = get_parent();
set_current_state(get_default_state());
add_states();
if (has(get_default_state()))
{
set_current_state(get_default_state());
}
else
{
WARN_PRINT("The selected default state " + get_default_state() + " doesn't exist!");
}
setup();
}
@ -46,13 +54,13 @@ void StateMachine::setup()
{
if (children.size() > 0)
{
WARN_PRINT("State machine doesn't have a default state set, using first child!");
WARN_PRINT("The state machine doesn't have a default state set, using first child!");
auto child = Object::cast_to<Node>(children[0].operator Object*());
set_current_state(child->get_name());
}
else
{
ERR_PRINT("State machine doesn't have a default state set and has no child states!");
ERR_PRINT("The state machine doesn't have a default state set and has no child states!");
return;
}
}
@ -60,7 +68,6 @@ void StateMachine::setup()
for (uint8_t i = 0; i < children.size(); i++)
{
auto child = Object::cast_to<Node>(children[i].operator Object*());
add_state(child->get_name(), child);
child->call("set_state_machine", this);
@ -72,7 +79,24 @@ void StateMachine::setup()
}
}
this->call("_state_enter", get_current_state());
Node *state_node = Object::cast_to<Node>(this->states[get_current_state()]);
if (state_node->has_method("_state_enter"))
{
this->call("_state_enter", get_current_state());
}
else {
WARN_PRINT("The state " + get_current_state() + " doesn't have a _state_enter method!");
}
}
void StateMachine::add_states()
{
auto children = get_children();
for (uint8_t i = 0; i < children.size(); i++)
{
auto child = Object::cast_to<Node>(children[i].operator Object*());
add_state(child->get_name(), child);
}
}
void StateMachine::add_state(const String state, Node *child)
@ -111,8 +135,31 @@ void StateMachine::change(const String state, const Array &args)
return this->restart(state, args);
}
if (!has(state))
{
WARN_PRINT("The state " + state + " does not exist, called from state " + get_current_state() + "!");
return;
}
auto previous_state = get_current_state();
auto exiting = this->call("_state_exit", state, args);
Variant exiting;
Node *state_node = Object::cast_to<Node>(this->states[previous_state]);
if (state_node)
{
if (state_node->has_method("_state_exit"))
{
exiting = this->call("_state_exit", state, args);
}
else
{
WARN_PRINT("The state " + get_current_state() + " doesn't have a _state_exit method!");
}
}
else
{
ERR_PRINT("Could not get current state node for " + get_current_state() + "!");
}
if (get_current_state() != "")
{
@ -132,7 +179,23 @@ void StateMachine::change(const String state, const Array &args)
auto child = Object::cast_to<Node>(states[get_current_state()].operator Object*());
this->add_child(child);
this->call("_state_enter", previous_state, args);
state_node = Object::cast_to<Node>(this->states[get_current_state()]);
if (state_node)
{
if (state_node->has_method("_state_enter"))
{
this->call("_state_enter", previous_state, args);
}
else
{
WARN_PRINT("The state " + get_current_state() + " doesn't have a _state_enter method!");
}
}
else
{
ERR_PRINT("Could not get current state node for " + get_current_state() + "!");
}
this->emit_signal("state_entered", get_current_state());
if (debug)
{
@ -143,11 +206,23 @@ void StateMachine::change(const String state, const Array &args)
Variant StateMachine::call(const String method, const Array &args)
{
auto node = Object::cast_to<Node>(states[get_current_state()].operator Object*());
if (node != nullptr)
if (node)
{
return node->call(method, args);
if (node->has_method(method))
{
return node->call(method, args);
}
else
{
WARN_PRINT("The state " + get_current_state() + " doesn't contain the method " + method + "!");
return Variant();
}
}
else
{
ERR_PRINT("Could not get current state node for " + get_current_state() + "!");
return Variant();
}
return Variant();
}
Variant StateMachine::_call(const String method, const Array &args)
@ -196,7 +271,7 @@ void StateMachine::_on_StateMachine_tree_exiting()
for (uint8_t i = 0; i < keys.size(); i++)
{
auto child = Object::cast_to<Node>(states[keys[i]].operator Object*());
if (child != nullptr)
if (child)
{
auto children = get_children();
if (!children.has(child))
@ -204,5 +279,10 @@ void StateMachine::_on_StateMachine_tree_exiting()
this->add_child(child);
}
}
else
{
ERR_PRINT("Could not get child node!");
return;
}
}
}

34
src/state_machine/StateMachine.h
View File

@ -43,6 +43,12 @@ namespace godot
*/
Dictionary states;
/**
* @brief This adds all nodes of the states machine as states in the machine.
*
*/
void add_states();
/**
* @brief This adds a state to the list of states in the state machine.
*
@ -51,6 +57,13 @@ namespace godot
*/
void add_state(const String state, Node *child);
/**
* @brief Set the current state object.
*
* @param[in] current_state The current state that is running.
*/
void set_current_state(const String current_state);
public:
/**
* @brief This method registers classes with Godot.
@ -157,6 +170,13 @@ namespace godot
*/
String get_default_state();
/**
* @brief Get the current state object.
*
* @return String The current running state.
*/
String get_current_state();
/**
* @brief Set the debug object.
*
@ -172,20 +192,6 @@ namespace godot
*/
bool get_debug();
/**
* @brief Set the current state object.
*
* @param[in] current_state The current state that is running.
*/
void set_current_state(const String current_state);
/**
* @brief Get the current state object.
*
* @return String The current running state.
*/
String get_current_state();
/**
* @brief This method is called when the signal tree_entered is emitted.
*