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godot/core/script_language.h
Juan Linietsky abbea4d945 UDP Fixes 
-=-=-=-=-

Curse the day I decided to port UDP code, as it ended up
being two nights of work.  At least It's done now (I hope).

-Fixed UDP Support, API seems stable
-Added UDP Chat demo (chat that can lose your packets, heh)
-Added helpers to areas and bodies to get list of collided bodies and contained bodies.
-Sped up screen/viewport capture code.
-Added code to save an image as PNG
-Small fix so scripts register their singletons after modules did.
2014-11-13 00:53:12 -03:00

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/*************************************************************************/
/* script_language.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef SCRIPT_LANGUAGE_H
#define SCRIPT_LANGUAGE_H
#include "resource.h"
#include "map.h"
#include "pair.h"
/**
@author Juan Linietsky <reduzio@gmail.com>
*/
class ScriptLanguage;
class ScriptServer {
enum {
MAX_LANGUAGES=4
};
static ScriptLanguage *_languages[MAX_LANGUAGES];
static int _language_count;
static bool scripting_enabled;
public:
static void set_scripting_enabled(bool p_enabled);
static bool is_scripting_enabled();
static int get_language_count();
static ScriptLanguage *get_language(int p_idx);
static void register_language(ScriptLanguage *p_language);
static void init_languages();
};
class ScriptInstance;
class PlaceHolderScriptInstance;
class Script : public Resource {
OBJ_TYPE( Script, Resource );
OBJ_SAVE_TYPE( Script );
protected:
void _notification( int p_what);
static void _bind_methods();
friend class PlaceHolderScriptInstance;
virtual void _placeholder_erased(PlaceHolderScriptInstance *p_placeholder) {}
public:
virtual bool can_instance() const=0;
virtual StringName get_instance_base_type() const=0; // this may not work in all scripts, will return empty if so
virtual ScriptInstance* instance_create(Object *p_this)=0;
virtual bool instance_has(const Object *p_this) const=0;
virtual bool has_source_code() const=0;
virtual String get_source_code() const=0;
virtual void set_source_code(const String& p_code)=0;
virtual Error reload()=0;
virtual bool is_tool() const=0;
virtual String get_node_type() const=0;
virtual ScriptLanguage *get_language() const=0;
virtual void update_exports() {} //editor tool
Script() {}
};
class ScriptInstance {
public:
virtual bool set(const StringName& p_name, const Variant& p_value)=0;
virtual bool get(const StringName& p_name, Variant &r_ret) const=0;
virtual void get_property_list(List<PropertyInfo> *p_properties) const=0;
virtual void get_method_list(List<MethodInfo> *p_list) const=0;
virtual bool has_method(const StringName& p_method) const=0;
virtual Variant call(const StringName& p_method,VARIANT_ARG_LIST);
virtual Variant call(const StringName& p_method,const Variant** p_args,int p_argcount,Variant::CallError &r_error)=0;
virtual void call_multilevel(const StringName& p_method,VARIANT_ARG_LIST);
virtual void call_multilevel(const StringName& p_method,const Variant** p_args,int p_argcount);
virtual void call_multilevel_reversed(const StringName& p_method,const Variant** p_args,int p_argcount);
virtual void notification(int p_notification)=0;
virtual Ref<Script> get_script() const=0;
virtual ScriptLanguage *get_language()=0;
virtual ~ScriptInstance();
};
class ScriptLanguage {
public:
virtual String get_name() const=0;
/* LANGUAGE FUNCTIONS */
virtual void init()=0;
virtual String get_type() const=0;
virtual String get_extension() const=0;
virtual Error execute_file(const String& p_path) =0;
virtual void finish()=0;
/* EDITOR FUNCTIONS */
virtual void get_reserved_words(List<String> *p_words) const=0;
virtual void get_comment_delimiters(List<String> *p_delimiters) const=0;
virtual void get_string_delimiters(List<String> *p_delimiters) const=0;
virtual String get_template(const String& p_class_name, const String& p_base_class_name) const=0;
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=0;
virtual Script *create_script() const=0;
virtual bool has_named_classes() const=0;
virtual int find_function(const String& p_function,const String& p_code) const=0;
virtual String make_function(const String& p_class,const String& p_name,const StringArray& p_args) const=0;
virtual Error complete_keyword(const String& p_code, int p_line, const String& p_base_path, const String& p_keyword, List<String>* r_options) { return ERR_UNAVAILABLE; }
virtual void auto_indent_code(String& p_code,int p_from_line,int p_to_line) const=0;
/* DEBUGGER FUNCTIONS */
virtual String debug_get_error() const=0;
virtual int debug_get_stack_level_count() const=0;
virtual int debug_get_stack_level_line(int p_level) const=0;
virtual String debug_get_stack_level_function(int p_level) const=0;
virtual String debug_get_stack_level_source(int p_level) const=0;
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)=0;
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)=0;
virtual void debug_get_globals(List<String> *p_locals, List<Variant> *p_values, int p_max_subitems=-1,int p_max_depth=-1)=0;
virtual String debug_parse_stack_level_expression(int p_level,const String& p_expression,int p_max_subitems=-1,int p_max_depth=-1)=0;
/* LOADER FUNCTIONS */
virtual void get_recognized_extensions(List<String> *p_extensions) const=0;
virtual void get_public_functions(List<MethodInfo> *p_functions) const=0;
virtual void get_public_constants(List<Pair<String,Variant> > *p_constants) const=0;
virtual void frame();
virtual ~ScriptLanguage() {};
};
extern uint8_t script_encryption_key[32];
class PlaceHolderScriptInstance : public ScriptInstance {
Object *owner;
List<PropertyInfo> properties;
Map<StringName,Variant> values;
ScriptLanguage *language;
Ref<Script> script;
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 void get_method_list(List<MethodInfo> *p_list) const {}
virtual bool has_method(const StringName& p_method) const { return false; }
virtual Variant call(const StringName& p_method,VARIANT_ARG_LIST) { return Variant();}
virtual Variant call(const StringName& p_method,const Variant** p_args,int p_argcount,Variant::CallError &r_error) { r_error.error=Variant::CallError::CALL_ERROR_INVALID_METHOD; return Variant(); }
//virtual void call_multilevel(const StringName& p_method,VARIANT_ARG_LIST) { return Variant(); }
//virtual void call_multilevel(const StringName& p_method,const Variant** p_args,int p_argcount,Variant::CallError &r_error) { return Variant(); }
virtual void notification(int p_notification) {}
virtual Ref<Script> get_script() const { return script; }
virtual ScriptLanguage *get_language() { return language; }
Object *get_owner() { return owner; }
void update(const List<PropertyInfo> &p_properties,const Map<StringName,Variant>& p_values); //likely changed in editor
PlaceHolderScriptInstance(ScriptLanguage *p_language, Ref<Script> p_script,Object *p_owner);
~PlaceHolderScriptInstance();
};
class ScriptDebugger {
int lines_left;
int depth;
static ScriptDebugger * singleton;
Map<int,Set<StringName> > breakpoints;
ScriptLanguage *break_lang;
public:
typedef void (*RequestSceneTreeMessageFunc)(void *);
_FORCE_INLINE_ static ScriptDebugger * get_singleton() { return singleton; }
void set_lines_left(int p_left);
int get_lines_left() const;
void set_depth(int p_depth);
int get_depth() const;
String breakpoint_find_source(const String& p_source) const;
void insert_breakpoint(int p_line, const StringName& p_source);
void remove_breakpoint(int p_line, const StringName& p_source);
bool is_breakpoint(int p_line,const StringName& p_source) const;
bool is_breakpoint_line(int p_line) const;
void clear_breakpoints();
virtual void debug(ScriptLanguage *p_script,bool p_can_continue=true)=0;
virtual void idle_poll();
virtual void line_poll();
void set_break_language(ScriptLanguage *p_lang);
ScriptLanguage* get_break_language() const;
virtual void send_message(const String& p_message, const Array& p_args)=0;
virtual bool is_remote() const { return false; }
virtual void request_quit() {}
virtual void set_request_scene_tree_message_func(RequestSceneTreeMessageFunc p_func, void *p_udata) {}
ScriptDebugger();
virtual ~ScriptDebugger() {singleton=NULL;}
};
#endif
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