godot/core/helper/math_fieldwise.cpp

/*************************************************************************/
/*  fieldwise.cpp                                                        */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2017 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,  */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/

#ifdef TOOLS_ENABLED

#include "core/helper/math_fieldwise.h"

#define SETUP_TYPE(m_type) m_type source=p_source; m_type target=p_target;
#define TRY_TRANSFER_FIELD(m_name,m_member) if (p_field==m_name) { target.m_member=source.m_member; }

Variant fieldwise_assign(const Variant& p_target, const Variant& p_source, const String& p_field) {

	ERR_FAIL_COND_V(p_target.get_type()!=p_source.get_type(),p_target);

	switch (p_source.get_type()) {

		case Variant::VECTOR2: {

			SETUP_TYPE(Vector2)

			/**/ TRY_TRANSFER_FIELD("x",x)
			else TRY_TRANSFER_FIELD("y",y)

			return target;
		}

		case Variant::RECT2: {

			SETUP_TYPE(Rect2)

			/**/ TRY_TRANSFER_FIELD("x",pos.x)
			else TRY_TRANSFER_FIELD("y",pos.y)
			else TRY_TRANSFER_FIELD("w",size.x)
			else TRY_TRANSFER_FIELD("h",size.y)

			return target;
		}

		case Variant::VECTOR3: {

			SETUP_TYPE(Vector3)

			/**/ TRY_TRANSFER_FIELD("x",x)
			else TRY_TRANSFER_FIELD("y",y)
			else TRY_TRANSFER_FIELD("z",z)

			return target;
		}

		case Variant::PLANE: {

			SETUP_TYPE(Plane)

			/**/ TRY_TRANSFER_FIELD("x",normal.x)
			else TRY_TRANSFER_FIELD("y",normal.y)
			else TRY_TRANSFER_FIELD("z",normal.z)
			else TRY_TRANSFER_FIELD("d",d)

			return target;
		}

		case Variant::QUAT: {

			SETUP_TYPE(Quat)

			/**/ TRY_TRANSFER_FIELD("x",x)
			else TRY_TRANSFER_FIELD("y",y)
			else TRY_TRANSFER_FIELD("z",z)
			else TRY_TRANSFER_FIELD("w",w)

			return target;
		}

		case Variant::RECT3: {

			SETUP_TYPE(Rect3)

			/**/ TRY_TRANSFER_FIELD("px",pos.x)
			else TRY_TRANSFER_FIELD("py",pos.y)
			else TRY_TRANSFER_FIELD("pz",pos.z)
			else TRY_TRANSFER_FIELD("sx",size.x)
			else TRY_TRANSFER_FIELD("sy",size.y)
			else TRY_TRANSFER_FIELD("sz",size.z)

			return target;
		}

		case Variant::TRANSFORM2D: {

			SETUP_TYPE(Transform2D)

			/**/ TRY_TRANSFER_FIELD("xx",elements[0][0])
			else TRY_TRANSFER_FIELD("xy",elements[0][1])
			else TRY_TRANSFER_FIELD("yx",elements[1][0])
			else TRY_TRANSFER_FIELD("yy",elements[1][1])
			else TRY_TRANSFER_FIELD("ox",elements[2][0])
			else TRY_TRANSFER_FIELD("oy",elements[2][1])

			return target;
		}

		case Variant::BASIS: {

			SETUP_TYPE(Basis)

			/**/ TRY_TRANSFER_FIELD("xx",elements[0][0])
			else TRY_TRANSFER_FIELD("xy",elements[0][1])
			else TRY_TRANSFER_FIELD("xz",elements[0][2])
			else TRY_TRANSFER_FIELD("yx",elements[1][0])
			else TRY_TRANSFER_FIELD("yy",elements[1][1])
			else TRY_TRANSFER_FIELD("yz",elements[1][2])
			else TRY_TRANSFER_FIELD("zx",elements[2][0])
			else TRY_TRANSFER_FIELD("zy",elements[2][1])
			else TRY_TRANSFER_FIELD("zz",elements[2][2])

			return target;
		}

		case Variant::TRANSFORM: {

			SETUP_TYPE(Transform)

			/**/ TRY_TRANSFER_FIELD("xx",basis.elements[0][0])
			else TRY_TRANSFER_FIELD("xy",basis.elements[0][1])
			else TRY_TRANSFER_FIELD("xz",basis.elements[0][2])
			else TRY_TRANSFER_FIELD("yx",basis.elements[1][0])
			else TRY_TRANSFER_FIELD("yy",basis.elements[1][1])
			else TRY_TRANSFER_FIELD("yz",basis.elements[1][2])
			else TRY_TRANSFER_FIELD("zx",basis.elements[2][0])
			else TRY_TRANSFER_FIELD("zy",basis.elements[2][1])
			else TRY_TRANSFER_FIELD("zz",basis.elements[2][2])
			else TRY_TRANSFER_FIELD("xo",origin.x)
			else TRY_TRANSFER_FIELD("yo",origin.y)
			else TRY_TRANSFER_FIELD("zo",origin.z)

			return target;
		}

		default: {
			ERR_FAIL_V(p_target);
		}
	}
}

#endif // TOOLS_ENABLED