text: /*************************************************************************/
  /*  visual_script_builtin_funcs.cpp                                      */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
  /*                                                                       */
  /* 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.                */
  /*************************************************************************/
  
  #include "visual_script_builtin_funcs.h"
  
  #include "core/class_db.h"
  #include "core/func_ref.h"
  #include "core/io/marshalls.h"
  #include "core/math/math_funcs.h"
  #include "core/os/os.h"
  #include "core/reference.h"
  #include "core/variant_parser.h"
  
  const char *VisualScriptBuiltinFunc::func_name[VisualScriptBuiltinFunc::FUNC_MAX] = {
  	"sin",
  	"cos",
  	"tan",
  	"sinh",
  	"cosh",
  	"tanh",
  	"asin",
  	"acos",
  	"atan",
  	"atan2",
  	"sqrt",
  	"fmod",
  	"fposmod",
  	"floor",
  	"ceil",
  	"round",
  	"abs",
  	"sign",
  	"pow",
  	"log",
  	"exp",
  	"is_nan",
  	"is_inf",
  	"ease",
  	"decimals",
  	"stepify",
  	"lerp",
  	"inverse_lerp",
  	"range_lerp",
  	"dectime",
  	"randomize",
  	"randi",
  	"randf",
  	"rand_range",
  	"seed",
  	"rand_seed",
  	"deg2rad",
  	"rad2deg",
  	"linear2db",
  	"db2linear",
  	"polar2cartesian",
  	"cartesian2polar",
  	"wrapi",
  	"wrapf",
  	"max",
  	"min",
  	"clamp",
  	"nearest_po2",
  	"weakref",
  	"funcref",
  	"convert",
  	"typeof",
  	"type_exists",
  	"char",
  	"str",
  	"print",
  	"printerr",
  	"printraw",
  	"var2str",
  	"str2var",
  	"var2bytes",
  	"bytes2var",
  	"color_named",
  	"smoothstep",
  };
  
  VisualScriptBuiltinFunc::BuiltinFunc VisualScriptBuiltinFunc::find_function(const String &p_string) {
  
  	for (int i = 0; i < FUNC_MAX; i++) {
  		if (p_string == func_name[i])
  			return BuiltinFunc(i);
  	}
  
  	return FUNC_MAX;
  }
  
  String VisualScriptBuiltinFunc::get_func_name(BuiltinFunc p_func) {
  
  	ERR_FAIL_INDEX_V(p_func, FUNC_MAX, String());
  	return func_name[p_func];
  }
  
  int VisualScriptBuiltinFunc::get_output_sequence_port_count() const {
  
  	return has_input_sequence_port() ? 1 : 0;
  }
  
  bool VisualScriptBuiltinFunc::has_input_sequence_port() const {
  
  	switch (func) {
  
  		case MATH_RANDOMIZE:
  		case TEXT_PRINT:
  		case TEXT_PRINTERR:
  		case TEXT_PRINTRAW:
  			return true;
  		default:
  			return false;
  	}
  }
  
  int VisualScriptBuiltinFunc::get_func_argument_count(BuiltinFunc p_func) {
  
  	switch (p_func) {
  
  		case MATH_RANDOMIZE:
  		case MATH_RAND:
  		case MATH_RANDF:
  			return 0;
  		case MATH_SIN:
  		case MATH_COS:
  		case MATH_TAN:
  		case MATH_SINH:
  		case MATH_COSH:
  		case MATH_TANH:
  		case MATH_ASIN:
  		case MATH_ACOS:
  		case MATH_ATAN:
  		case MATH_SQRT:
  		case MATH_FLOOR:
  		case MATH_CEIL:
  		case MATH_ROUND:
  		case MATH_ABS:
  		case MATH_SIGN:
  		case MATH_LOG:
  		case MATH_EXP:
  		case MATH_ISNAN:
  		case MATH_ISINF:
  		case MATH_DECIMALS:
  		case MATH_SEED:
  		case MATH_RANDSEED:
  		case MATH_DEG2RAD:
  		case MATH_RAD2DEG:
  		case MATH_LINEAR2DB:
  		case MATH_DB2LINEAR:
  		case LOGIC_NEAREST_PO2:
  		case OBJ_WEAKREF:
  		case TYPE_OF:
  		case TEXT_CHAR:
  		case TEXT_STR:
  		case TEXT_PRINT:
  		case TEXT_PRINTERR:
  		case TEXT_PRINTRAW:
  		case VAR_TO_STR:
  		case STR_TO_VAR:
  		case TYPE_EXISTS:
  			return 1;
  		case VAR_TO_BYTES:
  		case BYTES_TO_VAR:
  		case MATH_ATAN2:
  		case MATH_FMOD:
  		case MATH_FPOSMOD:
  		case MATH_POW:
  		case MATH_EASE:
  		case MATH_STEPIFY:
  		case MATH_RANDOM:
  		case MATH_POLAR2CARTESIAN:
  		case MATH_CARTESIAN2POLAR:
  		case LOGIC_MAX:
  		case LOGIC_MIN:
  		case FUNC_FUNCREF:
  		case TYPE_CONVERT:
  		case COLORN:
  			return 2;
  		case MATH_LERP:
  		case MATH_INVERSE_LERP:
  		case MATH_SMOOTHSTEP:
  		case MATH_DECTIME:
  		case MATH_WRAP:
  		case MATH_WRAPF:
  		case LOGIC_CLAMP:
  			return 3;
  		case MATH_RANGE_LERP:
  			return 5;
  		case FUNC_MAX: {
  		}
  	}
  	return 0;
  }
  
  int VisualScriptBuiltinFunc::get_input_value_port_count() const {
  
  	return get_func_argument_count(func);
  }
  int VisualScriptBuiltinFunc::get_output_value_port_count() const {
  
  	switch (func) {
  		case MATH_RANDOMIZE:
  		case TEXT_PRINT:
  		case TEXT_PRINTERR:
  		case TEXT_PRINTRAW:
  		case MATH_SEED:
  			return 0;
  		case MATH_RANDSEED:
  			return 2;
  		default:
  			return 1;
  	}
  
  	return 1;
  }
  
  String VisualScriptBuiltinFunc::get_output_sequence_port_text(int p_port) const {
  
  	return String();
  }
  
  PropertyInfo VisualScriptBuiltinFunc::get_input_value_port_info(int p_idx) const {
  
  	switch (func) {
  
  		case MATH_SIN:
  		case MATH_COS:
  		case MATH_TAN:
  		case MATH_SINH:
  		case MATH_COSH:
  		case MATH_TANH:
  		case MATH_ASIN:
  		case MATH_ACOS:
  		case MATH_ATAN:
  		case MATH_SQRT: {
  			return PropertyInfo(Variant::REAL, "s");
  		} break;
  		case MATH_ATAN2: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "y");
  			else
  				return PropertyInfo(Variant::REAL, "x");
  		} break;
  		case MATH_FMOD:
  		case MATH_FPOSMOD: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "x");
  			else
  				return PropertyInfo(Variant::REAL, "y");
  		} break;
  		case MATH_FLOOR:
  		case MATH_CEIL:
  		case MATH_ROUND:
  		case MATH_ABS:
  		case MATH_SIGN: {
  			return PropertyInfo(Variant::REAL, "s");
  
  		} break;
  
  		case MATH_POW: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "x");
  			else
  				return PropertyInfo(Variant::REAL, "y");
  		} break;
  		case MATH_LOG:
  		case MATH_EXP:
  		case MATH_ISNAN:
  		case MATH_ISINF: {
  			return PropertyInfo(Variant::REAL, "s");
  		} break;
  		case MATH_EASE: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "s");
  			else
  				return PropertyInfo(Variant::REAL, "curve");
  		} break;
  		case MATH_DECIMALS: {
  			return PropertyInfo(Variant::REAL, "step");
  		} break;
  		case MATH_STEPIFY: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "s");
  			else
  				return PropertyInfo(Variant::REAL, "steps");
  		} break;
  		case MATH_LERP: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "from");
  			else if (p_idx == 1)
  				return PropertyInfo(Variant::REAL, "to");
  			else
  				return PropertyInfo(Variant::REAL, "weight");
  		} break;
  		case MATH_INVERSE_LERP: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "from");
  			else if (p_idx == 1)
  				return PropertyInfo(Variant::REAL, "to");
  			else
  				return PropertyInfo(Variant::REAL, "weight");
  		} break;
  		case MATH_RANGE_LERP: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "value");
  			else if (p_idx == 1)
  				return PropertyInfo(Variant::REAL, "istart");
  			else if (p_idx == 2)
  				return PropertyInfo(Variant::REAL, "istop");
  			else if (p_idx == 3)
  				return PropertyInfo(Variant::REAL, "ostart");
  			else
  				return PropertyInfo(Variant::REAL, "ostop");
  		} break;
  		case MATH_SMOOTHSTEP: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "from");
  			else if (p_idx == 1)
  				return PropertyInfo(Variant::REAL, "to");
  			else
  				return PropertyInfo(Variant::REAL, "weight");
  		} break;
  		case MATH_DECTIME: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "value");
  			else if (p_idx == 1)
  				return PropertyInfo(Variant::REAL, "amount");
  			else
  				return PropertyInfo(Variant::REAL, "step");
  		} break;
  		case MATH_RANDOMIZE: {
  
  		} break;
  		case MATH_RAND: {
  
  		} break;
  		case MATH_RANDF: {
  
  		} break;
  		case MATH_RANDOM: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "from");
  			else
  				return PropertyInfo(Variant::REAL, "to");
  		} break;
  		case MATH_SEED: {
  			return PropertyInfo(Variant::INT, "seed");
  		} break;
  		case MATH_RANDSEED: {
  			return PropertyInfo(Variant::INT, "seed");
  		} break;
  		case MATH_DEG2RAD: {
  			return PropertyInfo(Variant::REAL, "deg");
  		} break;
  		case MATH_RAD2DEG: {
  			return PropertyInfo(Variant::REAL, "rad");
  		} break;
  		case MATH_LINEAR2DB: {
  			return PropertyInfo(Variant::REAL, "nrg");
  		} break;
  		case MATH_DB2LINEAR: {
  			return PropertyInfo(Variant::REAL, "db");
  		} break;
  		case MATH_POLAR2CARTESIAN: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "r");
  			else
  				return PropertyInfo(Variant::REAL, "th");
  		} break;
  		case MATH_CARTESIAN2POLAR: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "x");
  			else
  				return PropertyInfo(Variant::REAL, "y");
  		} break;
  		case MATH_WRAP: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::INT, "value");
  			else if (p_idx == 1)
  				return PropertyInfo(Variant::INT, "min");
  			else
  				return PropertyInfo(Variant::INT, "max");
  		} break;
  		case MATH_WRAPF: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "value");
  			else if (p_idx == 1)
  				return PropertyInfo(Variant::REAL, "min");
  			else
  				return PropertyInfo(Variant::REAL, "max");
  		} break;
  		case LOGIC_MAX: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "a");
  			else
  				return PropertyInfo(Variant::REAL, "b");
  		} break;
  		case LOGIC_MIN: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "a");
  			else
  				return PropertyInfo(Variant::REAL, "b");
  		} break;
  		case LOGIC_CLAMP: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::REAL, "value");
  			else if (p_idx == 1)
  				return PropertyInfo(Variant::REAL, "min");
  			else
  				return PropertyInfo(Variant::REAL, "max");
  		} break;
  		case LOGIC_NEAREST_PO2: {
  			return PropertyInfo(Variant::INT, "value");
  		} break;
  		case OBJ_WEAKREF: {
  
  			return PropertyInfo(Variant::OBJECT, "source");
  
  		} break;
  		case FUNC_FUNCREF: {
  
  			if (p_idx == 0)
  				return PropertyInfo(Variant::OBJECT, "instance");
  			else
  				return PropertyInfo(Variant::STRING, "funcname");
  
  		} break;
  		case TYPE_CONVERT: {
  
  			if (p_idx == 0)
  				return PropertyInfo(Variant::NIL, "what");
  			else
  				return PropertyInfo(Variant::STRING, "type");
  		} break;
  		case TYPE_OF: {
  			return PropertyInfo(Variant::NIL, "what");
  
  		} break;
  		case TYPE_EXISTS: {
  
  			return PropertyInfo(Variant::STRING, "type");
  
  		} break;
  		case TEXT_CHAR: {
  
  			return PropertyInfo(Variant::INT, "ascii");
  
  		} break;
  		case TEXT_STR: {
  
  			return PropertyInfo(Variant::NIL, "value");
  
  		} break;
  		case TEXT_PRINT: {
  
  			return PropertyInfo(Variant::NIL, "value");
  
  		} break;
  		case TEXT_PRINTERR: {
  			return PropertyInfo(Variant::NIL, "value");
  
  		} break;
  		case TEXT_PRINTRAW: {
  
  			return PropertyInfo(Variant::NIL, "value");
  
  		} break;
  		case VAR_TO_STR: {
  			return PropertyInfo(Variant::NIL, "var");
  
  		} break;
  		case STR_TO_VAR: {
  
  			return PropertyInfo(Variant::STRING, "string");
  		} break;
  		case VAR_TO_BYTES: {
  			if (p_idx == 0)
  				return PropertyInfo(Variant::NIL, "var");
  			else
  				return PropertyInfo(Variant::BOOL, "full_objects");
  
  		} break;
  		case BYTES_TO_VAR: {
  
  			if (p_idx == 0)
  				return PropertyInfo(Variant::POOL_BYTE_ARRAY, "bytes");
  			else
  				return PropertyInfo(Variant::BOOL, "allow_objects");
  		} break;
  		case COLORN: {
  
  			if (p_idx == 0)
  				return PropertyInfo(Variant::STRING, "name");
  			else
  				return PropertyInfo(Variant::REAL, "alpha");
  
  		} break;
  		case FUNC_MAX: {
  		}
  	}
  
  	return PropertyInfo();
  }
  
  PropertyInfo VisualScriptBuiltinFunc::get_output_value_port_info(int p_idx) const {
  
  	Variant::Type t = Variant::NIL;
  	switch (func) {
  
  		case MATH_SIN:
  		case MATH_COS:
  		case MATH_TAN:
  		case MATH_SINH:
  		case MATH_COSH:
  		case MATH_TANH:
  		case MATH_ASIN:
  		case MATH_ACOS:
  		case MATH_ATAN:
  		case MATH_ATAN2:
  		case MATH_SQRT:
  		case MATH_FMOD:
  		case MATH_FPOSMOD:
  		case MATH_FLOOR:
  		case MATH_CEIL: {
  			t = Variant::REAL;
  		} break;
  		case MATH_ROUND: {
  			t = Variant::INT;
  		} break;
  		case MATH_ABS: {
  			t = Variant::NIL;
  		} break;
  		case MATH_SIGN: {
  			t = Variant::NIL;
  		} break;
  		case MATH_POW:
  		case MATH_LOG:
  		case MATH_EXP: {
  			t = Variant::REAL;
  		} break;
  		case MATH_ISNAN:
  		case MATH_ISINF: {
  			t = Variant::BOOL;
  		} break;
  		case MATH_EASE: {
  			t = Variant::REAL;
  		} break;
  		case MATH_DECIMALS: {
  			t = Variant::INT;
  		} break;
  		case MATH_STEPIFY:
  		case MATH_LERP:
  		case MATH_INVERSE_LERP:
  		case MATH_RANGE_LERP:
  		case MATH_SMOOTHSTEP:
  		case MATH_DECTIME: {
  			t = Variant::REAL;
  
  		} break;
  		case MATH_RANDOMIZE: {
  
  		} break;
  		case MATH_RAND: {
  
  			t = Variant::INT;
  		} break;
  		case MATH_RANDF:
  		case MATH_RANDOM: {
  			t = Variant::REAL;
  		} break;
  		case MATH_SEED: {
  
  		} break;
  		case MATH_RANDSEED: {
  
  			if (p_idx == 0)
  				return PropertyInfo(Variant::INT, "rnd");
  			else
  				return PropertyInfo(Variant::INT, "seed");
  		} break;
  		case MATH_DEG2RAD:
  		case MATH_RAD2DEG:
  		case MATH_LINEAR2DB:
  		case MATH_WRAPF:
  		case MATH_DB2LINEAR: {
  			t = Variant::REAL;
  		} break;
  		case MATH_POLAR2CARTESIAN:
  		case MATH_CARTESIAN2POLAR: {
  			t = Variant::VECTOR2;
  		} break;
  		case MATH_WRAP: {
  			t = Variant::INT;
  		} break;
  		case LOGIC_MAX:
  		case LOGIC_MIN:
  		case LOGIC_CLAMP: {
  
  		} break;
  
  		case LOGIC_NEAREST_PO2: {
  			t = Variant::NIL;
  		} break;
  		case OBJ_WEAKREF: {
  
  			t = Variant::OBJECT;
  
  		} break;
  		case FUNC_FUNCREF: {
  
  			t = Variant::OBJECT;
  
  		} break;
  		case TYPE_CONVERT: {
  
  		} break;
  		case TYPE_OF: {
  			t = Variant::INT;
  
  		} break;
  		case TYPE_EXISTS: {
  
  			t = Variant::BOOL;
  
  		} break;
  		case TEXT_CHAR:
  		case TEXT_STR: {
  
  			t = Variant::STRING;
  
  		} break;
  		case TEXT_PRINT: {
  
  		} break;
  		case TEXT_PRINTERR: {
  
  		} break;
  		case TEXT_PRINTRAW: {
  
  		} break;
  		case VAR_TO_STR: {
  			t = Variant::STRING;
  		} break;
  		case STR_TO_VAR: {
  
  		} break;
  		case VAR_TO_BYTES: {
  			if (p_idx == 0)
  				t = Variant::POOL_BYTE_ARRAY;
  			else
  				t = Variant::BOOL;
  
  		} break;
  		case BYTES_TO_VAR: {
  			if (p_idx == 1)
  				t = Variant::BOOL;
  		} break;
  		case COLORN: {
  			t = Variant::COLOR;
  		} break;
  		case FUNC_MAX: {
  		}
  	}
  
  	return PropertyInfo(t, "");
  }
  
  /*
  String VisualScriptBuiltinFunc::get_caption() const {
  
  	return "BuiltinFunc";
  }
  */
  
  String VisualScriptBuiltinFunc::get_caption() const {
  
  	return func_name[func];
  }
  
  void VisualScriptBuiltinFunc::set_func(BuiltinFunc p_which) {
  
  	ERR_FAIL_INDEX(p_which, FUNC_MAX);
  	func = p_which;
  	_change_notify();
  	ports_changed_notify();
  }
  
  VisualScriptBuiltinFunc::BuiltinFunc VisualScriptBuiltinFunc::get_func() {
  	return func;
  }
  
  #define VALIDATE_ARG_NUM(m_arg)                                          \
  	if (!p_inputs[m_arg]->is_num()) {                                    \
  		r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT; \
  		r_error.argument = m_arg;                                        \
  		r_error.expected = Variant::REAL;                                \
  		return;                                                          \
  	}
  
  void VisualScriptBuiltinFunc::exec_func(BuiltinFunc p_func, const Variant **p_inputs, Variant *r_return, Variant::CallError &r_error, String &r_error_str) {
  
  	switch (p_func) {
  		case VisualScriptBuiltinFunc::MATH_SIN: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::sin((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_COS: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::cos((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_TAN: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::tan((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_SINH: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::sinh((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_COSH: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::cosh((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_TANH: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::tanh((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_ASIN: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::asin((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_ACOS: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::acos((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_ATAN: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::atan((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_ATAN2: {
  
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			*r_return = Math::atan2((double)*p_inputs[0], (double)*p_inputs[1]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_SQRT: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::sqrt((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_FMOD: {
  
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			*r_return = Math::fmod((double)*p_inputs[0], (double)*p_inputs[1]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_FPOSMOD: {
  
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			*r_return = Math::fposmod((double)*p_inputs[0], (double)*p_inputs[1]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_FLOOR: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::floor((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_CEIL: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::ceil((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_ROUND: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::round((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_ABS: {
  
  			if (p_inputs[0]->get_type() == Variant::INT) {
  
  				int64_t i = *p_inputs[0];
  				*r_return = ABS(i);
  			} else if (p_inputs[0]->get_type() == Variant::REAL) {
  
  				real_t r = *p_inputs[0];
  				*r_return = Math::abs(r);
  			} else {
  
  				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
  				r_error.argument = 0;
  				r_error.expected = Variant::REAL;
  			}
  		} break;
  		case VisualScriptBuiltinFunc::MATH_SIGN: {
  
  			if (p_inputs[0]->get_type() == Variant::INT) {
  
  				int64_t i = *p_inputs[0];
  				*r_return = i < 0 ? -1 : (i > 0 ? +1 : 0);
  			} else if (p_inputs[0]->get_type() == Variant::REAL) {
  
  				real_t r = *p_inputs[0];
  				*r_return = r < 0.0 ? -1.0 : (r > 0.0 ? +1.0 : 0.0);
  			} else {
  
  				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
  				r_error.argument = 0;
  				r_error.expected = Variant::REAL;
  			}
  		} break;
  		case VisualScriptBuiltinFunc::MATH_POW: {
  
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			*r_return = Math::pow((double)*p_inputs[0], (double)*p_inputs[1]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_LOG: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::log((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_EXP: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::exp((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_ISNAN: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::is_nan((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_ISINF: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::is_inf((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_EASE: {
  
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			*r_return = Math::ease((double)*p_inputs[0], (double)*p_inputs[1]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_DECIMALS: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::step_decimals((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_STEPIFY: {
  
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			*r_return = Math::stepify((double)*p_inputs[0], (double)*p_inputs[1]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_LERP: {
  
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			VALIDATE_ARG_NUM(2);
  			*r_return = Math::lerp((double)*p_inputs[0], (double)*p_inputs[1], (double)*p_inputs[2]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_INVERSE_LERP: {
  
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			VALIDATE_ARG_NUM(2);
  			*r_return = Math::inverse_lerp((double)*p_inputs[0], (double)*p_inputs[1], (double)*p_inputs[2]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_RANGE_LERP: {
  
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			VALIDATE_ARG_NUM(2);
  			VALIDATE_ARG_NUM(3);
  			VALIDATE_ARG_NUM(4);
  			*r_return = Math::range_lerp((double)*p_inputs[0], (double)*p_inputs[1], (double)*p_inputs[2], (double)*p_inputs[3], (double)*p_inputs[4]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_SMOOTHSTEP: {
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			VALIDATE_ARG_NUM(2);
  			*r_return = Math::smoothstep((double)*p_inputs[0], (double)*p_inputs[1], (double)*p_inputs[2]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_DECTIME: {
  
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			VALIDATE_ARG_NUM(2);
  			*r_return = Math::dectime((double)*p_inputs[0], (double)*p_inputs[1], (double)*p_inputs[2]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_RANDOMIZE: {
  			Math::randomize();
  
  		} break;
  		case VisualScriptBuiltinFunc::MATH_RAND: {
  			*r_return = Math::rand();
  		} break;
  		case VisualScriptBuiltinFunc::MATH_RANDF: {
  			*r_return = Math::randf();
  		} break;
  		case VisualScriptBuiltinFunc::MATH_RANDOM: {
  
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			*r_return = Math::random((double)*p_inputs[0], (double)*p_inputs[1]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_SEED: {
  
  			VALIDATE_ARG_NUM(0);
  			uint64_t seed = *p_inputs[0];
  			Math::seed(seed);
  
  		} break;
  		case VisualScriptBuiltinFunc::MATH_RANDSEED: {
  
  			VALIDATE_ARG_NUM(0);
  			uint64_t seed = *p_inputs[0];
  			int ret = Math::rand_from_seed(&seed);
  			Array reta;
  			reta.push_back(ret);
  			reta.push_back(seed);
  			*r_return = reta;
  
  		} break;
  		case VisualScriptBuiltinFunc::MATH_DEG2RAD: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::deg2rad((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_RAD2DEG: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::rad2deg((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_LINEAR2DB: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::linear2db((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_DB2LINEAR: {
  
  			VALIDATE_ARG_NUM(0);
  			*r_return = Math::db2linear((double)*p_inputs[0]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_POLAR2CARTESIAN: {
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			double r = *p_inputs[0];
  			double th = *p_inputs[1];
  			*r_return = Vector2(r * Math::cos(th), r * Math::sin(th));
  		} break;
  		case VisualScriptBuiltinFunc::MATH_CARTESIAN2POLAR: {
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			double x = *p_inputs[0];
  			double y = *p_inputs[1];
  			*r_return = Vector2(Math::sqrt(x * x + y * y), Math::atan2(y, x));
  		} break;
  		case VisualScriptBuiltinFunc::MATH_WRAP: {
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			VALIDATE_ARG_NUM(2);
  			*r_return = Math::wrapi((int64_t)*p_inputs[0], (int64_t)*p_inputs[1], (int64_t)*p_inputs[2]);
  		} break;
  		case VisualScriptBuiltinFunc::MATH_WRAPF: {
  			VALIDATE_ARG_NUM(0);
  			VALIDATE_ARG_NUM(1);
  			VALIDATE_ARG_NUM(2);
  			*r_return = Math::wrapf((double)*p_inputs[0], (double)*p_inputs[1], (double)*p_inputs[2]);
  		} break;
  		case VisualScriptBuiltinFunc::LOGIC_MAX: {
  
  			if (p_inputs[0]->get_type() == Variant::INT && p_inputs[1]->get_type() == Variant::INT) {
  
  				int64_t a = *p_inputs[0];
  				int64_t b = *p_inputs[1];
  				*r_return = MAX(a, b);
  			} else {
  				VALIDATE_ARG_NUM(0);
  				VALIDATE_ARG_NUM(1);
  
  				real_t a = *p_inputs[0];
  				real_t b = *p_inputs[1];
  
  				*r_return = MAX(a, b);
  			}
  
  		} break;
  		case VisualScriptBuiltinFunc::LOGIC_MIN: {
  
  			if (p_inputs[0]->get_type() == Variant::INT && p_inputs[1]->get_type() == Variant::INT) {
  
  				int64_t a = *p_inputs[0];
  				int64_t b = *p_inputs[1];
  				*r_return = MIN(a, b);
  			} else {
  				VALIDATE_ARG_NUM(0);
  				VALIDATE_ARG_NUM(1);
  
  				real_t a = *p_inputs[0];
  				real_t b = *p_inputs[1];
  
  				*r_return = MIN(a, b);
  			}
  		} break;
  		case VisualScriptBuiltinFunc::LOGIC_CLAMP: {
  
  			if (p_inputs[0]->get_type() == Variant::INT && p_inputs[1]->get_type() == Variant::INT && p_inputs[2]->get_type() == Variant::INT) {
  
  				int64_t a = *p_inputs[0];
  				int64_t b = *p_inputs[1];
  				int64_t c = *p_inputs[2];
  				*r_return = CLAMP(a, b, c);
  			} else {
  				VALIDATE_ARG_NUM(0);
  				VALIDATE_ARG_NUM(1);
  				VALIDATE_ARG_NUM(2);
  
  				real_t a = *p_inputs[0];
  				real_t b = *p_inputs[1];
  				real_t c = *p_inputs[2];
  
  				*r_return = CLAMP(a, b, c);
  			}
  		} break;
  		case VisualScriptBuiltinFunc::LOGIC_NEAREST_PO2: {
  
  			VALIDATE_ARG_NUM(0);
  			int64_t num = *p_inputs[0];
  			*r_return = next_power_of_2(num);
  		} break;
  		case VisualScriptBuiltinFunc::OBJ_WEAKREF: {
  
  			if (p_inputs[0]->get_type() != Variant::OBJECT) {
  
  				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
  				r_error.argument = 0;
  				r_error.expected = Variant::OBJECT;
  
  				return;
  			}
  
  			if (p_inputs[0]->is_ref()) {
  
  				REF r = *p_inputs[0];
  				if (!r.is_valid()) {
  
  					return;
  				}
  
  				Ref<WeakRef> wref = memnew(WeakRef);
  				wref->set_ref(r);
  				*r_return = wref;
  			} else {
  				Object *obj = *p_inputs[0];
  				if (!obj) {
  
  					return;
  				}
  				Ref<WeakRef> wref = memnew(WeakRef);
  				wref->set_obj(obj);
  				*r_return = wref;
  			}
  
  		} break;
  		case VisualScriptBuiltinFunc::FUNC_FUNCREF: {
  
  			if (p_inputs[0]->get_type() != Variant::OBJECT) {
  
  				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
  				r_error.argument = 0;
  				r_error.expected = Variant::OBJECT;
  
  				return;
  			}
  			if (p_inputs[1]->get_type() != Variant::STRING && p_inputs[1]->get_type() != Variant::NODE_PATH) {
  
  				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
  				r_error.argument = 1;
  				r_error.expected = Variant::STRING;
  
  				return;
  			}
  
  			Ref<FuncRef> fr = memnew(FuncRef);
  
  			fr->set_instance(*p_inputs[0]);
  			fr->set_function(*p_inputs[1]);
  
  			*r_return = fr;
  
  		} break;
  		case VisualScriptBuiltinFunc::TYPE_CONVERT: {
  
  			VALIDATE_ARG_NUM(1);
  			int type = *p_inputs[1];
  			if (type < 0 || type >= Variant::VARIANT_MAX) {
  
  				r_error_str = RTR("Invalid type argument to convert(), use TYPE_* constants.");
  				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
  				r_error.argument = 0;
  				r_error.expected = Variant::INT;
  				return;
  
  			} else {
  
  				*r_return = Variant::construct(Variant::Type(type), p_inputs, 1, r_error);
  			}
  		} break;
  		case VisualScriptBuiltinFunc::TYPE_OF: {
  
  			*r_return = p_inputs[0]->get_type();
  
  		} break;
  		case VisualScriptBuiltinFunc::TYPE_EXISTS: {
  
  			*r_return = ClassDB::class_exists(*p_inputs[0]);
  
  		} break;
  		case VisualScriptBuiltinFunc::TEXT_CHAR: {
  
  			CharType result[2] = { *p_inputs[0], 0 };
  
  			*r_return = String(result);
  
  		} break;
  		case VisualScriptBuiltinFunc::TEXT_STR: {
  
  			String str = *p_inputs[0];
  
  			*r_return = str;
  
  		} break;
  		case VisualScriptBuiltinFunc::TEXT_PRINT: {
  
  			String str = *p_inputs[0];
  			print_line(str);
  
  		} break;
  
  		case VisualScriptBuiltinFunc::TEXT_PRINTERR: {
  
  			String str = *p_inputs[0];
  			print_error(str);
  
  		} break;
  		case VisualScriptBuiltinFunc::TEXT_PRINTRAW: {
  
  			String str = *p_inputs[0];
  			OS::get_singleton()->print("%s", str.utf8().get_data());
  
  		} break;
  		case VisualScriptBuiltinFunc::VAR_TO_STR: {
  
  			String vars;
  			VariantWriter::write_to_string(*p_inputs[0], vars);
  			*r_return = vars;
  		} break;
  		case VisualScriptBuiltinFunc::STR_TO_VAR: {
  
  			if (p_inputs[0]->get_type() != Variant::STRING) {
  				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
  				r_error.argument = 0;
  				r_error.expected = Variant::STRING;
  
  				return;
  			}
  
  			VariantParser::StreamString ss;
  			ss.s = *p_inputs[0];
  
  			String errs;
  			int line;
  			Error err = VariantParser::parse(&ss, *r_return, errs, line);
  
  			if (err != OK) {
  				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
  				r_error.argument = 0;
  				r_error.expected = Variant::STRING;
  				*r_return = "Parse error at line " + itos(line) + ": " + errs;
  				return;
  			}
  
  		} break;
  		case VisualScriptBuiltinFunc::VAR_TO_BYTES: {
  
  			if (p_inputs[1]->get_type() != Variant::BOOL) {
  				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
  				r_error.argument = 1;
  				r_error.expected = Variant::BOOL;
  				return;
  			}
  			PoolByteArray barr;
  			int len;
  			bool full_objects = *p_inputs[1];
  			Error err = encode_variant(*p_inputs[0], NULL, len, full_objects);
  			if (err) {
  				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
  				r_error.argument = 0;
  				r_error.expected = Variant::NIL;
  				r_error_str = "Unexpected error encoding variable to bytes, likely unserializable type found (Object or RID).";
  				return;
  			}
  
  			barr.resize(len);
  			{
  				PoolByteArray::Write w = barr.write();
  				encode_variant(*p_inputs[0], w.ptr(), len, full_objects);
  			}
  			*r_return = barr;
  		} break;
  		case VisualScriptBuiltinFunc::BYTES_TO_VAR: {
  
  			if (p_inputs[0]->get_type() != Variant::POOL_BYTE_ARRAY) {
  				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
  				r_error.argument = 0;
  				r_error.expected = Variant::POOL_BYTE_ARRAY;
  				return;
  			}
  			if (p_inputs[1]->get_type() != Variant::BOOL) {
  				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
  				r_error.argument = 1;
  				r_error.expected = Variant::BOOL;
  				return;
  			}
  
  			PoolByteArray varr = *p_inputs[0];
  			bool allow_objects = *p_inputs[1];
  			Variant ret;
  			{
  				PoolByteArray::Read r = varr.read();
  				Error err = decode_variant(ret, r.ptr(), varr.size(), NULL, allow_objects);
  				if (err != OK) {
  					r_error_str = RTR("Not enough bytes for decoding bytes, or invalid format.");
  					r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
  					r_error.argument = 0;
  					r_error.expected = Variant::POOL_BYTE_ARRAY;
  					return;
  				}
  			}
  
  			*r_return = ret;
  
  		} break;
  		case VisualScriptBuiltinFunc::COLORN: {
  
  			VALIDATE_ARG_NUM(1);
  
  			Color color = Color::named(*p_inputs[0]);
  			color.a = *p_inputs[1];
  
  			*r_return = String(color);
  
  		} break;
  		default: {
  		}
  	}
  }
  
  class VisualScriptNodeInstanceBuiltinFunc : public VisualScriptNodeInstance {
  public:
  	VisualScriptBuiltinFunc *node;
  	VisualScriptInstance *instance;
  
  	VisualScriptBuiltinFunc::BuiltinFunc func;
  
  	//virtual int get_working_memory_size() const { return 0; }
  	//virtual bool is_output_port_unsequenced(int p_idx) const { return false; }
  	//virtual bool get_output_port_unsequenced(int p_idx,Variant* r_value,Variant* p_working_mem,String &r_error) const { return true; }
  
  	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) {
  
  		VisualScriptBuiltinFunc::exec_func(func, p_inputs, p_outputs[0], r_error, r_error_str);
  		return 0;
  	}
  };
  
  VisualScriptNodeInstance *VisualScriptBuiltinFunc::instance(VisualScriptInstance *p_instance) {
  
  	VisualScriptNodeInstanceBuiltinFunc *instance = memnew(VisualScriptNodeInstanceBuiltinFunc);
  	instance->node = this;
  	instance->instance = p_instance;
  	instance->func = func;
  	return instance;
  }
  
  void VisualScriptBuiltinFunc::_bind_methods() {
  
  	ClassDB::bind_method(D_METHOD("set_func", "which"), &VisualScriptBuiltinFunc::set_func);
  	ClassDB::bind_method(D_METHOD("get_func"), &VisualScriptBuiltinFunc::get_func);
  
  	String cc;
  
  	for (int i = 0; i < FUNC_MAX; i++) {
  
  		if (i > 0)
  			cc += ",";
  		cc += func_name[i];
  	}
  	ADD_PROPERTY(PropertyInfo(Variant::INT, "function", PROPERTY_HINT_ENUM, cc), "set_func", "get_func");
  
  	BIND_ENUM_CONSTANT(MATH_SIN);
  	BIND_ENUM_CONSTANT(MATH_COS);
  	BIND_ENUM_CONSTANT(MATH_TAN);
  	BIND_ENUM_CONSTANT(MATH_SINH);
  	BIND_ENUM_CONSTANT(MATH_COSH);
  	BIND_ENUM_CONSTANT(MATH_TANH);
  	BIND_ENUM_CONSTANT(MATH_ASIN);
  	BIND_ENUM_CONSTANT(MATH_ACOS);
  	BIND_ENUM_CONSTANT(MATH_ATAN);
  	BIND_ENUM_CONSTANT(MATH_ATAN2);
  	BIND_ENUM_CONSTANT(MATH_SQRT);
  	BIND_ENUM_CONSTANT(MATH_FMOD);
  	BIND_ENUM_CONSTANT(MATH_FPOSMOD);
  	BIND_ENUM_CONSTANT(MATH_FLOOR);
  	BIND_ENUM_CONSTANT(MATH_CEIL);
  	BIND_ENUM_CONSTANT(MATH_ROUND);
  	BIND_ENUM_CONSTANT(MATH_ABS);
  	BIND_ENUM_CONSTANT(MATH_SIGN);
  	BIND_ENUM_CONSTANT(MATH_POW);
  	BIND_ENUM_CONSTANT(MATH_LOG);
  	BIND_ENUM_CONSTANT(MATH_EXP);
  	BIND_ENUM_CONSTANT(MATH_ISNAN);
  	BIND_ENUM_CONSTANT(MATH_ISINF);
  	BIND_ENUM_CONSTANT(MATH_EASE);
  	BIND_ENUM_CONSTANT(MATH_DECIMALS);
  	BIND_ENUM_CONSTANT(MATH_STEPIFY);
  	BIND_ENUM_CONSTANT(MATH_LERP);
  	BIND_ENUM_CONSTANT(MATH_INVERSE_LERP);
  	BIND_ENUM_CONSTANT(MATH_RANGE_LERP);
  	BIND_ENUM_CONSTANT(MATH_DECTIME);
  	BIND_ENUM_CONSTANT(MATH_RANDOMIZE);
  	BIND_ENUM_CONSTANT(MATH_RAND);
  	BIND_ENUM_CONSTANT(MATH_RANDF);
  	BIND_ENUM_CONSTANT(MATH_RANDOM);
  	BIND_ENUM_CONSTANT(MATH_SEED);
  	BIND_ENUM_CONSTANT(MATH_RANDSEED);
  	BIND_ENUM_CONSTANT(MATH_DEG2RAD);
  	BIND_ENUM_CONSTANT(MATH_RAD2DEG);
  	BIND_ENUM_CONSTANT(MATH_LINEAR2DB);
  	BIND_ENUM_CONSTANT(MATH_DB2LINEAR);
  	BIND_ENUM_CONSTANT(MATH_POLAR2CARTESIAN);
  	BIND_ENUM_CONSTANT(MATH_CARTESIAN2POLAR);
  	BIND_ENUM_CONSTANT(MATH_WRAP);
  	BIND_ENUM_CONSTANT(MATH_WRAPF);
  	BIND_ENUM_CONSTANT(LOGIC_MAX);
  	BIND_ENUM_CONSTANT(LOGIC_MIN);
  	BIND_ENUM_CONSTANT(LOGIC_CLAMP);
  	BIND_ENUM_CONSTANT(LOGIC_NEAREST_PO2);
  	BIND_ENUM_CONSTANT(OBJ_WEAKREF);
  	BIND_ENUM_CONSTANT(FUNC_FUNCREF);
  	BIND_ENUM_CONSTANT(TYPE_CONVERT);
  	BIND_ENUM_CONSTANT(TYPE_OF);
  	BIND_ENUM_CONSTANT(TYPE_EXISTS);
  	BIND_ENUM_CONSTANT(TEXT_CHAR);
  	BIND_ENUM_CONSTANT(TEXT_STR);
  	BIND_ENUM_CONSTANT(TEXT_PRINT);
  	BIND_ENUM_CONSTANT(TEXT_PRINTERR);
  	BIND_ENUM_CONSTANT(TEXT_PRINTRAW);
  	BIND_ENUM_CONSTANT(VAR_TO_STR);
  	BIND_ENUM_CONSTANT(STR_TO_VAR);
  	BIND_ENUM_CONSTANT(VAR_TO_BYTES);
  	BIND_ENUM_CONSTANT(BYTES_TO_VAR);
  	BIND_ENUM_CONSTANT(COLORN);
  	BIND_ENUM_CONSTANT(MATH_SMOOTHSTEP);
  	BIND_ENUM_CONSTANT(FUNC_MAX);
  }
  
  VisualScriptBuiltinFunc::VisualScriptBuiltinFunc(VisualScriptBuiltinFunc::BuiltinFunc func) {
  
  	this->func = func;
  }
  
  VisualScriptBuiltinFunc::VisualScriptBuiltinFunc() {
  
  	func = MATH_SIN;
  }
  
  template <VisualScriptBuiltinFunc::BuiltinFunc func>
  static Ref<VisualScriptNode> create_builtin_func_node(const String &p_name) {
  
  	Ref<VisualScriptBuiltinFunc> node = memnew(VisualScriptBuiltinFunc(func));
  	return node;
  }
  
  void register_visual_script_builtin_func_node() {
  
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/sin", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_SIN>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/cos", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_COS>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/tan", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_TAN>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/sinh", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_SINH>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/cosh", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_COSH>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/tanh", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_TANH>);
  
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/asin", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_ASIN>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/acos", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_ACOS>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/atan", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_ATAN>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/atan2", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_ATAN2>);
  
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/sqrt", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_SQRT>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/fmod", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_FMOD>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/fposmod", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_FPOSMOD>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/floor", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_FLOOR>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/ceil", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_CEIL>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/round", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_ROUND>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/abs", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_ABS>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/sign", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_SIGN>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/pow", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_POW>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/log", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_LOG>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/exp", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_EXP>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/isnan", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_ISNAN>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/isinf", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_ISINF>);
  
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/ease", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_EASE>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/decimals", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_DECIMALS>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/stepify", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_STEPIFY>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/lerp", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_LERP>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/inverse_lerp", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_INVERSE_LERP>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/range_lerp", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RANGE_LERP>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/smoothstep", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_SMOOTHSTEP>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/dectime", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_DECTIME>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/randomize", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RANDOMIZE>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/rand", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RAND>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/randf", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RANDF>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/random", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RANDOM>);
  
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/seed", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_SEED>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/randseed", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RANDSEED>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/deg2rad", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_DEG2RAD>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/rad2deg", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RAD2DEG>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/linear2db", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_LINEAR2DB>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/db2linear", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_DB2LINEAR>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/polar2cartesian", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_POLAR2CARTESIAN>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/cartesian2polar", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_CARTESIAN2POLAR>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/wrapi", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_WRAP>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/wrapf", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_WRAPF>);
  
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/max", create_builtin_func_node<VisualScriptBuiltinFunc::LOGIC_MAX>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/min", create_builtin_func_node<VisualScriptBuiltinFunc::LOGIC_MIN>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/clamp", create_builtin_func_node<VisualScriptBuiltinFunc::LOGIC_CLAMP>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/nearest_po2", create_builtin_func_node<VisualScriptBuiltinFunc::LOGIC_NEAREST_PO2>);
  
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/weakref", create_builtin_func_node<VisualScriptBuiltinFunc::OBJ_WEAKREF>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/funcref", create_builtin_func_node<VisualScriptBuiltinFunc::FUNC_FUNCREF>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/convert", create_builtin_func_node<VisualScriptBuiltinFunc::TYPE_CONVERT>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/typeof", create_builtin_func_node<VisualScriptBuiltinFunc::TYPE_OF>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/type_exists", create_builtin_func_node<VisualScriptBuiltinFunc::TYPE_EXISTS>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/char", create_builtin_func_node<VisualScriptBuiltinFunc::TEXT_CHAR>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/str", create_builtin_func_node<VisualScriptBuiltinFunc::TEXT_STR>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/print", create_builtin_func_node<VisualScriptBuiltinFunc::TEXT_PRINT>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/printerr", create_builtin_func_node<VisualScriptBuiltinFunc::TEXT_PRINTERR>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/printraw", create_builtin_func_node<VisualScriptBuiltinFunc::TEXT_PRINTRAW>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/var2str", create_builtin_func_node<VisualScriptBuiltinFunc::VAR_TO_STR>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/str2var", create_builtin_func_node<VisualScriptBuiltinFunc::STR_TO_VAR>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/var2bytes", create_builtin_func_node<VisualScriptBuiltinFunc::VAR_TO_BYTES>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/bytes2var", create_builtin_func_node<VisualScriptBuiltinFunc::BYTES_TO_VAR>);
  	VisualScriptLanguage::singleton->add_register_func("functions/built_in/color_named", create_builtin_func_node<VisualScriptBuiltinFunc::COLORN>);
  }
  