mirror of
https://github.com/godotengine/godot.git
synced 2024-11-26 06:03:38 +00:00
116 lines
3.7 KiB
C++
116 lines
3.7 KiB
C++
/*************************************************************************/
|
|
/* math_defs.h */
|
|
/*************************************************************************/
|
|
/* 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. */
|
|
/*************************************************************************/
|
|
|
|
#ifndef MATH_DEFS_H
|
|
#define MATH_DEFS_H
|
|
|
|
#define CMP_EPSILON 0.00001
|
|
#define CMP_EPSILON2 (CMP_EPSILON * CMP_EPSILON)
|
|
|
|
#define CMP_NORMALIZE_TOLERANCE 0.000001
|
|
#define CMP_POINT_IN_PLANE_EPSILON 0.00001
|
|
|
|
#define Math_SQRT12 0.7071067811865475244008443621048490
|
|
#define Math_SQRT2 1.4142135623730950488016887242
|
|
#define Math_LN2 0.6931471805599453094172321215
|
|
#define Math_TAU 6.2831853071795864769252867666
|
|
#define Math_PI 3.1415926535897932384626433833
|
|
#define Math_E 2.7182818284590452353602874714
|
|
#define Math_INF INFINITY
|
|
#define Math_NAN NAN
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
#define MATH_CHECKS
|
|
#endif
|
|
|
|
//this epsilon is for values related to a unit size (scalar or vector len)
|
|
#ifdef PRECISE_MATH_CHECKS
|
|
#define UNIT_EPSILON 0.00001
|
|
#else
|
|
//tolerate some more floating point error normally
|
|
#define UNIT_EPSILON 0.001
|
|
#endif
|
|
|
|
#define USEC_TO_SEC(m_usec) ((m_usec) / 1000000.0)
|
|
|
|
enum ClockDirection {
|
|
CLOCKWISE,
|
|
COUNTERCLOCKWISE
|
|
};
|
|
|
|
enum Orientation {
|
|
|
|
HORIZONTAL,
|
|
VERTICAL
|
|
};
|
|
|
|
enum HAlign {
|
|
|
|
HALIGN_LEFT,
|
|
HALIGN_CENTER,
|
|
HALIGN_RIGHT
|
|
};
|
|
|
|
enum VAlign {
|
|
|
|
VALIGN_TOP,
|
|
VALIGN_CENTER,
|
|
VALIGN_BOTTOM
|
|
};
|
|
|
|
enum Margin {
|
|
|
|
MARGIN_LEFT,
|
|
MARGIN_TOP,
|
|
MARGIN_RIGHT,
|
|
MARGIN_BOTTOM
|
|
};
|
|
|
|
enum Corner {
|
|
|
|
CORNER_TOP_LEFT,
|
|
CORNER_TOP_RIGHT,
|
|
CORNER_BOTTOM_RIGHT,
|
|
CORNER_BOTTOM_LEFT
|
|
};
|
|
|
|
/**
|
|
* The "Real" type is an abstract type used for real numbers, such as 1.5,
|
|
* in contrast to integer numbers. Precision can be controlled with the
|
|
* presence or absence of the REAL_T_IS_DOUBLE define.
|
|
*/
|
|
#ifdef REAL_T_IS_DOUBLE
|
|
typedef double real_t;
|
|
#else
|
|
typedef float real_t;
|
|
#endif
|
|
|
|
#endif // MATH_DEFS_H
|