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d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
141 lines
4.6 KiB
C++
141 lines
4.6 KiB
C++
/**************************************************************************/
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/* math_defs.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef MATH_DEFS_H
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#define MATH_DEFS_H
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#define CMP_EPSILON 0.00001
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#define CMP_EPSILON2 (CMP_EPSILON * CMP_EPSILON)
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#define CMP_NORMALIZE_TOLERANCE 0.000001
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#define CMP_POINT_IN_PLANE_EPSILON 0.00001
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#define Math_SQRT12 0.7071067811865475244008443621048490
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#define Math_SQRT2 1.4142135623730950488016887242
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#define Math_LN2 0.6931471805599453094172321215
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#define Math_TAU 6.2831853071795864769252867666
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#define Math_PI 3.1415926535897932384626433833
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#define Math_E 2.7182818284590452353602874714
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#ifdef DEBUG_ENABLED
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#define MATH_CHECKS
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#endif
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//this epsilon is for values related to a unit size (scalar or vector len)
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#ifdef PRECISE_MATH_CHECKS
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#define UNIT_EPSILON 0.00001
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#else
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//tolerate some more floating point error normally
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#define UNIT_EPSILON 0.001
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#endif
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#define USEC_TO_SEC(m_usec) ((m_usec) / 1000000.0)
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enum ClockDirection {
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CLOCKWISE,
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COUNTERCLOCKWISE
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};
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enum Orientation {
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HORIZONTAL,
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VERTICAL
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};
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enum HorizontalAlignment {
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HORIZONTAL_ALIGNMENT_LEFT,
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HORIZONTAL_ALIGNMENT_CENTER,
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HORIZONTAL_ALIGNMENT_RIGHT,
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HORIZONTAL_ALIGNMENT_FILL,
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};
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enum VerticalAlignment {
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VERTICAL_ALIGNMENT_TOP,
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VERTICAL_ALIGNMENT_CENTER,
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VERTICAL_ALIGNMENT_BOTTOM,
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VERTICAL_ALIGNMENT_FILL,
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};
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enum InlineAlignment {
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// Image alignment points.
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INLINE_ALIGNMENT_TOP_TO = 0b0000,
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INLINE_ALIGNMENT_CENTER_TO = 0b0001,
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INLINE_ALIGNMENT_BASELINE_TO = 0b0011,
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INLINE_ALIGNMENT_BOTTOM_TO = 0b0010,
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INLINE_ALIGNMENT_IMAGE_MASK = 0b0011,
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// Text alignment points.
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INLINE_ALIGNMENT_TO_TOP = 0b0000,
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INLINE_ALIGNMENT_TO_CENTER = 0b0100,
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INLINE_ALIGNMENT_TO_BASELINE = 0b1000,
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INLINE_ALIGNMENT_TO_BOTTOM = 0b1100,
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INLINE_ALIGNMENT_TEXT_MASK = 0b1100,
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// Presets.
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INLINE_ALIGNMENT_TOP = INLINE_ALIGNMENT_TOP_TO | INLINE_ALIGNMENT_TO_TOP,
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INLINE_ALIGNMENT_CENTER = INLINE_ALIGNMENT_CENTER_TO | INLINE_ALIGNMENT_TO_CENTER,
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INLINE_ALIGNMENT_BOTTOM = INLINE_ALIGNMENT_BOTTOM_TO | INLINE_ALIGNMENT_TO_BOTTOM
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};
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enum Side {
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SIDE_LEFT,
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SIDE_TOP,
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SIDE_RIGHT,
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SIDE_BOTTOM
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};
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enum Corner {
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CORNER_TOP_LEFT,
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CORNER_TOP_RIGHT,
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CORNER_BOTTOM_RIGHT,
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CORNER_BOTTOM_LEFT
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};
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enum class EulerOrder {
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XYZ,
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XZY,
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YXZ,
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YZX,
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ZXY,
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ZYX
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};
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/**
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* The "Real" type is an abstract type used for real numbers, such as 1.5,
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* in contrast to integer numbers. Precision can be controlled with the
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* presence or absence of the REAL_T_IS_DOUBLE define.
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*/
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#ifdef REAL_T_IS_DOUBLE
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typedef double real_t;
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#else
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typedef float real_t;
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#endif
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#endif // MATH_DEFS_H
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