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# ifndef VSCRIPT_H
# define VSCRIPT_H
# include "script_language.h"
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# include "os/thread.h"
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class VisualScriptInstance ;
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class VisualScriptNodeInstance ;
class VisualScript ;
class VisualScriptNode : public Resource {
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GDCLASS ( VisualScriptNode , Resource )
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friend class VisualScript ;
Set < VisualScript * > scripts_used ;
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Array default_input_values ;
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bool breakpoint ;
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void _set_default_input_values ( Array p_values ) ;
Array _get_default_input_values ( ) const ;
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void validate_input_default_values ( ) ;
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protected :
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void _notification ( int p_what ) ;
void ports_changed_notify ( ) ;
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static void _bind_methods ( ) ;
public :
Ref < VisualScript > get_visual_script ( ) const ;
virtual int get_output_sequence_port_count ( ) const = 0 ;
virtual bool has_input_sequence_port ( ) const = 0 ;
virtual String get_output_sequence_port_text ( int p_port ) const = 0 ;
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virtual bool has_mixed_input_and_sequence_ports ( ) const { return false ; }
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virtual int get_input_value_port_count ( ) const = 0 ;
virtual int get_output_value_port_count ( ) const = 0 ;
virtual PropertyInfo get_input_value_port_info ( int p_idx ) const = 0 ;
virtual PropertyInfo get_output_value_port_info ( int p_idx ) const = 0 ;
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void set_default_input_value ( int p_port , const Variant & p_value ) ;
Variant get_default_input_value ( int p_port ) const ;
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virtual String get_caption ( ) const = 0 ;
virtual String get_text ( ) const = 0 ;
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virtual String get_category ( ) const = 0 ;
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//used by editor, this is not really saved
void set_breakpoint ( bool p_breakpoint ) ;
bool is_breakpoint ( ) const ;
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virtual VisualScriptNodeInstance * instance ( VisualScriptInstance * p_instance ) = 0 ;
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struct TypeGuess {
Variant : : Type type ;
InputEvent : : Type ev_type ;
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StringName GDCLASS ;
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Ref < Script > script ;
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TypeGuess ( ) { type = Variant : : NIL ; ev_type = InputEvent : : NONE ; }
} ;
virtual TypeGuess guess_output_type ( TypeGuess * p_inputs , int p_output ) const ;
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VisualScriptNode ( ) ;
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} ;
class VisualScriptNodeInstance {
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friend class VisualScriptInstance ;
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friend class VisualScriptLanguage ; //for debugger
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enum { //input argument addressing
INPUT_SHIFT = 1 < < 24 ,
INPUT_MASK = INPUT_SHIFT - 1 ,
INPUT_DEFAULT_VALUE_BIT = INPUT_SHIFT , // from unassigned input port, using default value (edited by user)
} ;
int id ;
int sequence_index ;
VisualScriptNodeInstance * * sequence_outputs ;
int sequence_output_count ;
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Vector < VisualScriptNodeInstance * > dependencies ;
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int * input_ports ;
int input_port_count ;
int * output_ports ;
int output_port_count ;
int working_mem_idx ;
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int pass_idx ;
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VisualScriptNode * base ;
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public :
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enum StartMode {
START_MODE_BEGIN_SEQUENCE ,
START_MODE_CONTINUE_SEQUENCE ,
START_MODE_RESUME_YIELD
} ;
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enum {
STEP_SHIFT = 1 < < 24 ,
STEP_MASK = STEP_SHIFT - 1 ,
STEP_FLAG_PUSH_STACK_BIT = STEP_SHIFT , //push bit to stack
STEP_FLAG_GO_BACK_BIT = STEP_SHIFT < < 1 , //go back to previous node
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STEP_NO_ADVANCE_BIT = STEP_SHIFT < < 2 , //do not advance past this node
STEP_EXIT_FUNCTION_BIT = STEP_SHIFT < < 3 , //return from function
STEP_YIELD_BIT = STEP_SHIFT < < 4 , //yield (will find VisualScriptFunctionState state in first working memory)
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FLOW_STACK_PUSHED_BIT = 1 < < 30 , //in flow stack, means bit was pushed (must go back here if end of sequence)
FLOW_STACK_MASK = FLOW_STACK_PUSHED_BIT - 1
} ;
_FORCE_INLINE_ int get_input_port_count ( ) const { return input_port_count ; }
_FORCE_INLINE_ int get_output_port_count ( ) const { return output_port_count ; }
_FORCE_INLINE_ int get_sequence_output_count ( ) const { return sequence_output_count ; }
_FORCE_INLINE_ int get_id ( ) const { return id ; }
virtual int get_working_memory_size ( ) const { return 0 ; }
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virtual int step ( const Variant * * p_inputs , Variant * * p_outputs , StartMode p_start_mode , Variant * p_working_mem , Variant : : CallError & r_error , String & r_error_str ) = 0 ; //do a step, return which sequence port to go out
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Ref < VisualScriptNode > get_base_node ( ) { return Ref < VisualScriptNode > ( base ) ; }
VisualScriptNodeInstance ( ) ;
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virtual ~ VisualScriptNodeInstance ( ) ;
} ;
class VisualScript : public Script {
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GDCLASS ( VisualScript , Script )
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RES_BASE_EXTENSION ( " vs " ) ;
public :
struct SequenceConnection {
union {
struct {
uint64_t from_node : 24 ;
uint64_t from_output : 16 ;
uint64_t to_node : 24 ;
} ;
uint64_t id ;
} ;
bool operator < ( const SequenceConnection & p_connection ) const {
return id < p_connection . id ;
}
} ;
struct DataConnection {
union {
struct {
uint64_t from_node : 24 ;
uint64_t from_port : 8 ;
uint64_t to_node : 24 ;
uint64_t to_port : 8 ;
} ;
uint64_t id ;
} ;
bool operator < ( const DataConnection & p_connection ) const {
return id < p_connection . id ;
}
} ;
private :
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friend class VisualScriptInstance ;
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StringName base_type ;
struct Argument {
String name ;
Variant : : Type type ;
} ;
struct Function {
struct NodeData {
Point2 pos ;
Ref < VisualScriptNode > node ;
} ;
Map < int , NodeData > nodes ;
Set < SequenceConnection > sequence_connections ;
Set < DataConnection > data_connections ;
int function_id ;
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Vector2 scroll ;
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Function ( ) { function_id = - 1 ; }
} ;
struct Variable {
PropertyInfo info ;
Variant default_value ;
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bool _export ;
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} ;
Map < StringName , Function > functions ;
Map < StringName , Variable > variables ;
Map < StringName , Vector < Argument > > custom_signals ;
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Map < Object * , VisualScriptInstance * > instances ;
# ifdef TOOLS_ENABLED
Set < PlaceHolderScriptInstance * > placeholders ;
//void _update_placeholder(PlaceHolderScriptInstance *p_placeholder);
virtual void _placeholder_erased ( PlaceHolderScriptInstance * p_placeholder ) ;
void _update_placeholders ( ) ;
# endif
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void _set_variable_info ( const StringName & p_name , const Dictionary & p_info ) ;
Dictionary _get_variable_info ( const StringName & p_name ) const ;
void _set_data ( const Dictionary & p_data ) ;
Dictionary _get_data ( ) const ;
protected :
void _node_ports_changed ( int p_id ) ;
static void _bind_methods ( ) ;
public :
void add_function ( const StringName & p_name ) ;
bool has_function ( const StringName & p_name ) const ;
void remove_function ( const StringName & p_name ) ;
void rename_function ( const StringName & p_name , const StringName & p_new_name ) ;
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void set_function_scroll ( const StringName & p_name , const Vector2 & p_scroll ) ;
Vector2 get_function_scroll ( const StringName & p_name ) const ;
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void get_function_list ( List < StringName > * r_functions ) const ;
int get_function_node_id ( const StringName & p_name ) const ;
void add_node ( const StringName & p_func , int p_id , const Ref < VisualScriptNode > & p_node , const Point2 & p_pos = Point2 ( ) ) ;
void remove_node ( const StringName & p_func , int p_id ) ;
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bool has_node ( const StringName & p_func , int p_id ) const ;
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Ref < VisualScriptNode > get_node ( const StringName & p_func , int p_id ) const ;
void set_node_pos ( const StringName & p_func , int p_id , const Point2 & p_pos ) ;
Point2 get_node_pos ( const StringName & p_func , int p_id ) const ;
void get_node_list ( const StringName & p_func , List < int > * r_nodes ) const ;
void sequence_connect ( const StringName & p_func , int p_from_node , int p_from_output , int p_to_node ) ;
void sequence_disconnect ( const StringName & p_func , int p_from_node , int p_from_output , int p_to_node ) ;
bool has_sequence_connection ( const StringName & p_func , int p_from_node , int p_from_output , int p_to_node ) const ;
void get_sequence_connection_list ( const StringName & p_func , List < SequenceConnection > * r_connection ) const ;
void data_connect ( const StringName & p_func , int p_from_node , int p_from_port , int p_to_node , int p_to_port ) ;
void data_disconnect ( const StringName & p_func , int p_from_node , int p_from_port , int p_to_node , int p_to_port ) ;
bool has_data_connection ( const StringName & p_func , int p_from_node , int p_from_port , int p_to_node , int p_to_port ) const ;
void get_data_connection_list ( const StringName & p_func , List < DataConnection > * r_connection ) const ;
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bool is_input_value_port_connected ( const StringName & p_name , int p_node , int p_port ) const ;
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bool get_input_value_port_connection_source ( const StringName & p_name , int p_node , int p_port , int * r_node , int * r_port ) const ;
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void add_variable ( const StringName & p_name , const Variant & p_default_value = Variant ( ) , bool p_export = false ) ;
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bool has_variable ( const StringName & p_name ) const ;
void remove_variable ( const StringName & p_name ) ;
void set_variable_default_value ( const StringName & p_name , const Variant & p_value ) ;
Variant get_variable_default_value ( const StringName & p_name ) const ;
void set_variable_info ( const StringName & p_name , const PropertyInfo & p_info ) ;
PropertyInfo get_variable_info ( const StringName & p_name ) const ;
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void set_variable_export ( const StringName & p_name , bool p_export ) ;
bool get_variable_export ( const StringName & p_name ) const ;
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void get_variable_list ( List < StringName > * r_variables ) const ;
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void rename_variable ( const StringName & p_name , const StringName & p_new_name ) ;
void add_custom_signal ( const StringName & p_name ) ;
bool has_custom_signal ( const StringName & p_name ) const ;
void custom_signal_add_argument ( const StringName & p_func , Variant : : Type p_type , const String & p_name , int p_index = - 1 ) ;
void custom_signal_set_argument_type ( const StringName & p_func , int p_argidx , Variant : : Type p_type ) ;
Variant : : Type custom_signal_get_argument_type ( const StringName & p_func , int p_argidx ) const ;
void custom_signal_set_argument_name ( const StringName & p_func , int p_argidx , const String & p_name ) ;
String custom_signal_get_argument_name ( const StringName & p_func , int p_argidx ) const ;
void custom_signal_remove_argument ( const StringName & p_func , int p_argidx ) ;
int custom_signal_get_argument_count ( const StringName & p_func ) const ;
void custom_signal_swap_argument ( const StringName & p_func , int p_argidx , int p_with_argidx ) ;
void remove_custom_signal ( const StringName & p_name ) ;
void rename_custom_signal ( const StringName & p_name , const StringName & p_new_name ) ;
void get_custom_signal_list ( List < StringName > * r_custom_signals ) const ;
int get_available_id ( ) const ;
void set_instance_base_type ( const StringName & p_type ) ;
virtual bool can_instance ( ) const ;
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virtual Ref < Script > get_base_script ( ) const ;
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virtual StringName get_instance_base_type ( ) const ;
virtual ScriptInstance * instance_create ( Object * p_this ) ;
virtual bool instance_has ( const Object * p_this ) const ;
virtual bool has_source_code ( ) const ;
virtual String get_source_code ( ) const ;
virtual void set_source_code ( const String & p_code ) ;
virtual Error reload ( bool p_keep_state = false ) ;
virtual bool is_tool ( ) const ;
virtual String get_node_type ( ) const ;
virtual ScriptLanguage * get_language ( ) const ;
virtual bool has_script_signal ( const StringName & p_signal ) const ;
virtual void get_script_signal_list ( List < MethodInfo > * r_signals ) const ;
virtual bool get_property_default_value ( const StringName & p_property , Variant & r_value ) const ;
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virtual void get_script_method_list ( List < MethodInfo > * p_list ) const ;
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virtual bool has_method ( const StringName & p_method ) const ;
virtual MethodInfo get_method_info ( const StringName & p_method ) const ;
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virtual void get_script_property_list ( List < PropertyInfo > * p_list ) const ;
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# ifdef TOOLS_ENABLED
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virtual bool are_subnodes_edited ( ) const ;
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# endif
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VisualScript ( ) ;
~ VisualScript ( ) ;
} ;
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class VisualScriptInstance : public ScriptInstance {
Object * owner ;
Ref < VisualScript > script ;
Map < StringName , Variant > variables ; //using variable path, not script
Map < int , VisualScriptNodeInstance * > instances ;
struct Function {
int node ;
int max_stack ;
int trash_pos ;
int return_pos ;
int flow_stack_size ;
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int pass_stack_size ;
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int node_count ;
int argument_count ;
bool valid ;
} ;
Map < StringName , Function > functions ;
Vector < Variant > default_values ;
int max_input_args , max_output_args ;
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StringName source ;
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void _dependency_step ( VisualScriptNodeInstance * node , int p_pass , int * pass_stack , const Variant * * input_args , Variant * * output_args , Variant * variant_stack , Variant : : CallError & r_error , String & error_str , VisualScriptNodeInstance * * r_error_node ) ;
Variant _call_internal ( const StringName & p_method , void * p_stack , int p_stack_size , VisualScriptNodeInstance * p_node , int p_flow_stack_pos , int p_pass , bool p_resuming_yield , Variant : : CallError & r_error ) ;
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//Map<StringName,Function> functions;
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friend class VisualScriptFunctionState ; //for yield
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friend class VisualScriptLanguage ; //for debugger
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public :
virtual bool set ( const StringName & p_name , const Variant & p_value ) ;
virtual bool get ( const StringName & p_name , Variant & r_ret ) const ;
virtual void get_property_list ( List < PropertyInfo > * p_properties ) const ;
virtual Variant : : Type get_property_type ( const StringName & p_name , bool * r_is_valid = NULL ) const ;
virtual void get_method_list ( List < MethodInfo > * p_list ) const ;
virtual bool has_method ( const StringName & p_method ) const ;
virtual Variant call ( const StringName & p_method , const Variant * * p_args , int p_argcount , Variant : : CallError & r_error ) ;
virtual void notification ( int p_notification ) ;
bool set_variable ( const StringName & p_variable , const Variant & p_value ) {
Map < StringName , Variant > : : Element * E = variables . find ( p_variable ) ;
if ( ! E )
return false ;
E - > get ( ) = p_value ;
return true ;
}
bool get_variable ( const StringName & p_variable , Variant * r_variable ) const {
const Map < StringName , Variant > : : Element * E = variables . find ( p_variable ) ;
if ( ! E )
return false ;
* r_variable = E - > get ( ) ;
return true ;
}
virtual Ref < Script > get_script ( ) const ;
_FORCE_INLINE_ VisualScript * get_script_ptr ( ) { return script . ptr ( ) ; }
_FORCE_INLINE_ Object * get_owner_ptr ( ) { return owner ; }
void create ( const Ref < VisualScript > & p_script , Object * p_owner ) ;
virtual ScriptLanguage * get_language ( ) ;
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virtual RPCMode get_rpc_mode ( const StringName & p_method ) const ;
virtual RPCMode get_rset_mode ( const StringName & p_variable ) const ;
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VisualScriptInstance ( ) ;
~ VisualScriptInstance ( ) ;
} ;
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class VisualScriptFunctionState : public Reference {
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GDCLASS ( VisualScriptFunctionState , Reference ) ;
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friend class VisualScriptInstance ;
ObjectID instance_id ;
ObjectID script_id ;
VisualScriptInstance * instance ;
StringName function ;
Vector < uint8_t > stack ;
int working_mem_index ;
int variant_stack_size ;
VisualScriptNodeInstance * node ;
int flow_stack_pos ;
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int pass ;
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Variant _signal_callback ( const Variant * * p_args , int p_argcount , Variant : : CallError & r_error ) ;
protected :
static void _bind_methods ( ) ;
public :
void connect_to_signal ( Object * p_obj , const String & p_signal , Array p_binds ) ;
bool is_valid ( ) const ;
Variant resume ( Array p_args ) ;
VisualScriptFunctionState ( ) ;
~ VisualScriptFunctionState ( ) ;
} ;
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typedef Ref < VisualScriptNode > ( * VisualScriptNodeRegisterFunc ) ( const String & p_type ) ;
class VisualScriptLanguage : public ScriptLanguage {
Map < String , VisualScriptNodeRegisterFunc > register_funcs ;
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struct CallLevel {
Variant * stack ;
Variant * * work_mem ;
const StringName * function ;
VisualScriptInstance * instance ;
int * current_id ;
} ;
int _debug_parse_err_node ;
String _debug_parse_err_file ;
String _debug_error ;
int _debug_call_stack_pos ;
int _debug_max_call_stack ;
CallLevel * _call_stack ;
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public :
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StringName notification ;
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StringName _get_output_port_unsequenced ;
StringName _step ;
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StringName _subcall ;
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static VisualScriptLanguage * singleton ;
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Mutex * lock ;
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bool debug_break ( const String & p_error , bool p_allow_continue = true ) ;
bool debug_break_parse ( const String & p_file , int p_node , const String & p_error ) ;
_FORCE_INLINE_ void enter_function ( VisualScriptInstance * p_instance , const StringName * p_function , Variant * p_stack , Variant * * p_work_mem , int * current_id ) {
if ( Thread : : get_main_ID ( ) ! = Thread : : get_caller_ID ( ) )
return ; //no support for other threads than main for now
if ( ScriptDebugger : : get_singleton ( ) - > get_lines_left ( ) > 0 & & ScriptDebugger : : get_singleton ( ) - > get_depth ( ) > = 0 )
ScriptDebugger : : get_singleton ( ) - > set_depth ( ScriptDebugger : : get_singleton ( ) - > get_depth ( ) + 1 ) ;
if ( _debug_call_stack_pos > = _debug_max_call_stack ) {
//stack overflow
_debug_error = " Stack Overflow (Stack Size: " + itos ( _debug_max_call_stack ) + " ) " ;
ScriptDebugger : : get_singleton ( ) - > debug ( this ) ;
return ;
}
_call_stack [ _debug_call_stack_pos ] . stack = p_stack ;
_call_stack [ _debug_call_stack_pos ] . instance = p_instance ;
_call_stack [ _debug_call_stack_pos ] . function = p_function ;
_call_stack [ _debug_call_stack_pos ] . work_mem = p_work_mem ;
_call_stack [ _debug_call_stack_pos ] . current_id = current_id ;
_debug_call_stack_pos + + ;
}
_FORCE_INLINE_ void exit_function ( ) {
if ( Thread : : get_main_ID ( ) ! = Thread : : get_caller_ID ( ) )
return ; //no support for other threads than main for now
if ( ScriptDebugger : : get_singleton ( ) - > get_lines_left ( ) > 0 & & ScriptDebugger : : get_singleton ( ) - > get_depth ( ) > = 0 )
ScriptDebugger : : get_singleton ( ) - > set_depth ( ScriptDebugger : : get_singleton ( ) - > get_depth ( ) - 1 ) ;
if ( _debug_call_stack_pos = = 0 ) {
_debug_error = " Stack Underflow (Engine Bug) " ;
ScriptDebugger : : get_singleton ( ) - > debug ( this ) ;
return ;
}
_debug_call_stack_pos - - ;
}
//////////////////////////////////////
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virtual String get_name ( ) const ;
/* LANGUAGE FUNCTIONS */
virtual void init ( ) ;
virtual String get_type ( ) const ;
virtual String get_extension ( ) const ;
virtual Error execute_file ( const String & p_path ) ;
virtual void finish ( ) ;
/* EDITOR FUNCTIONS */
virtual void get_reserved_words ( List < String > * p_words ) const ;
virtual void get_comment_delimiters ( List < String > * p_delimiters ) const ;
virtual void get_string_delimiters ( List < String > * p_delimiters ) const ;
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virtual Ref < Script > get_template ( const String & p_class_name , const String & p_base_class_name ) const ;
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virtual bool validate ( const String & p_script , int & r_line_error , int & r_col_error , String & r_test_error , const String & p_path = " " , List < String > * r_functions = NULL ) const ;
virtual Script * create_script ( ) const ;
virtual bool has_named_classes ( ) const ;
virtual int find_function ( const String & p_function , const String & p_code ) const ;
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virtual String make_function ( const String & p_class , const String & p_name , const PoolStringArray & p_args ) const ;
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virtual void auto_indent_code ( String & p_code , int p_from_line , int p_to_line ) const ;
virtual void add_global_constant ( const StringName & p_variable , const Variant & p_value ) ;
/* DEBUGGER FUNCTIONS */
virtual String debug_get_error ( ) const ;
virtual int debug_get_stack_level_count ( ) const ;
virtual int debug_get_stack_level_line ( int p_level ) const ;
virtual String debug_get_stack_level_function ( int p_level ) const ;
virtual String debug_get_stack_level_source ( int p_level ) const ;
virtual void debug_get_stack_level_locals ( int p_level , List < String > * p_locals , List < Variant > * p_values , int p_max_subitems = - 1 , int p_max_depth = - 1 ) ;
virtual void debug_get_stack_level_members ( int p_level , List < String > * p_members , List < Variant > * p_values , int p_max_subitems = - 1 , int p_max_depth = - 1 ) ;
virtual void debug_get_globals ( List < String > * p_locals , List < Variant > * p_values , int p_max_subitems = - 1 , int p_max_depth = - 1 ) ;
virtual String debug_parse_stack_level_expression ( int p_level , const String & p_expression , int p_max_subitems = - 1 , int p_max_depth = - 1 ) ;
virtual void reload_all_scripts ( ) ;
virtual void reload_tool_script ( const Ref < Script > & p_script , bool p_soft_reload ) ;
/* LOADER FUNCTIONS */
virtual void get_recognized_extensions ( List < String > * p_extensions ) const ;
virtual void get_public_functions ( List < MethodInfo > * p_functions ) const ;
virtual void get_public_constants ( List < Pair < String , Variant > > * p_constants ) const ;
virtual void profiling_start ( ) ;
virtual void profiling_stop ( ) ;
virtual int profiling_get_accumulated_data ( ProfilingInfo * p_info_arr , int p_info_max ) ;
virtual int profiling_get_frame_data ( ProfilingInfo * p_info_arr , int p_info_max ) ;
void add_register_func ( const String & p_name , VisualScriptNodeRegisterFunc p_func ) ;
Ref < VisualScriptNode > create_node_from_name ( const String & p_name ) ;
void get_registered_node_names ( List < String > * r_names ) ;
VisualScriptLanguage ( ) ;
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~ VisualScriptLanguage ( ) ;
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} ;
//aid for registering
template < class T >
static Ref < VisualScriptNode > create_node_generic ( const String & p_name ) {
Ref < T > node ;
node . instance ( ) ;
return node ;
}
# endif // VSCRIPT_H
