/*************************************************************************/
/*  vector4.cpp                                                          */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 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 <godot_cpp/variant/vector4.hpp>

#include <godot_cpp/variant/basis.hpp>
#include <godot_cpp/variant/vector4i.hpp>

namespace godot {

bool Vector4::is_equal_approx(const Vector4 &p_vec4) const {
	return Math::is_equal_approx(x, p_vec4.x) && Math::is_equal_approx(y, p_vec4.y) && Math::is_equal_approx(z, p_vec4.z) && Math::is_equal_approx(w, p_vec4.w);
}

real_t Vector4::length() const {
	return Math::sqrt(length_squared());
}

void Vector4::normalize() {
	*this /= length();
}

Vector4 Vector4::normalized() const {
	return *this / length();
}

bool Vector4::is_normalized() const {
	return Math::is_equal_approx(length_squared(), 1, (real_t)UNIT_EPSILON); // use less epsilon
}

Vector4 Vector4::abs() const {
	return Vector4(Math::abs(x), Math::abs(y), Math::abs(z), Math::abs(w));
}

Vector4 Vector4::sign() const {
	return Vector4(Math::sign(x), Math::sign(y), Math::sign(z), Math::sign(w));
}

Vector4 Vector4::inverse() const {
	return Vector4(1.0f / x, 1.0f / y, 1.0f / z, 1.0f / w);
}

Vector4::Axis Vector4::min_axis_index() const {
	uint32_t min_index = 0;
	real_t min_value = x;
	for (uint32_t i = 1; i < 4; i++) {
		if (operator[](i) < min_value) {
			min_index = i;
			min_value = operator[](i);
		}
	}
	return Vector4::Axis(min_index);
}

Vector4::Axis Vector4::max_axis_index() const {
	uint32_t max_index = 0;
	real_t max_value = x;
	for (uint32_t i = 1; i < 4; i++) {
		if (operator[](i) > max_value) {
			max_index = i;
			max_value = operator[](i);
		}
	}
	return Vector4::Axis(max_index);
}

Vector4 Vector4::clamp(const Vector4 &p_min, const Vector4 &p_max) const {
	return Vector4(
			CLAMP(x, p_min.x, p_max.x),
			CLAMP(y, p_min.y, p_max.y),
			CLAMP(z, p_min.z, p_max.z),
			CLAMP(w, p_min.w, p_max.w));
}

Vector4::operator String() const {
	return "(" + String::num_real(x, false) + ", " + String::num_real(y, false) + ", " + String::num_real(z, false) + ", " + String::num_real(w, false) + ")";
}

} // namespace godot