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Diffstat (limited to 'external/include/glm/gtx/easing.hpp')
| -rw-r--r-- | external/include/glm/gtx/easing.hpp | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/external/include/glm/gtx/easing.hpp b/external/include/glm/gtx/easing.hpp new file mode 100644 index 0000000..913ca70 --- /dev/null +++ b/external/include/glm/gtx/easing.hpp @@ -0,0 +1,221 @@ +/// @ref gtx_easing +/// @file glm/gtx/easing.hpp +/// @author Robert Chisholm +/// +/// @see core (dependence) +/// +/// @defgroup gtx_easing GLM_GTX_easing +/// @ingroup gtx +/// +/// Include <glm/gtx/easing.hpp> to use the features of this extension. +/// +/// Easing functions for animations and transitons +/// All functions take a parameter x in the range [0.0,1.0] +/// +/// Based on the AHEasing project of Warren Moore (https://github.com/warrenm/AHEasing) + +#pragma once + +// Dependency: +#include "../glm.hpp" +#include "../gtc/constants.hpp" +#include "../detail/setup.hpp" +#include "../detail/qualifier.hpp" +#include "../detail/type_int.hpp" + +#ifndef GLM_ENABLE_EXPERIMENTAL +# error "GLM: GLM_GTX_easing is an experimental extension and may change in the future. Use #define GLM_ENABLE_EXPERIMENTAL before including it, if you really want to use it." +#endif + +#if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_EXT_INCLUDED) +# pragma message("GLM: GLM_GTX_easing extension included") +#endif + +namespace glm{ + /// @addtogroup gtx_easing + /// @{ + + /// Modelled after the line y = x + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType linearInterpolation(genType const & a); + + /// Modelled after the parabola y = x^2 + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType quadraticEaseIn(genType const & a); + + /// Modelled after the parabola y = -x^2 + 2x + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType quadraticEaseOut(genType const & a); + + /// Modelled after the piecewise quadratic + /// y = (1/2)((2x)^2) ; [0, 0.5) + /// y = -(1/2)((2x-1)*(2x-3) - 1) ; [0.5, 1] + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType quadraticEaseInOut(genType const & a); + + /// Modelled after the cubic y = x^3 + template <typename genType> + GLM_FUNC_DECL genType cubicEaseIn(genType const & a); + + /// Modelled after the cubic y = (x - 1)^3 + 1 + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType cubicEaseOut(genType const & a); + + /// Modelled after the piecewise cubic + /// y = (1/2)((2x)^3) ; [0, 0.5) + /// y = (1/2)((2x-2)^3 + 2) ; [0.5, 1] + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType cubicEaseInOut(genType const & a); + + /// Modelled after the quartic x^4 + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType quarticEaseIn(genType const & a); + + /// Modelled after the quartic y = 1 - (x - 1)^4 + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType quarticEaseOut(genType const & a); + + /// Modelled after the piecewise quartic + /// y = (1/2)((2x)^4) ; [0, 0.5) + /// y = -(1/2)((2x-2)^4 - 2) ; [0.5, 1] + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType quarticEaseInOut(genType const & a); + + /// Modelled after the quintic y = x^5 + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType quinticEaseIn(genType const & a); + + /// Modelled after the quintic y = (x - 1)^5 + 1 + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType quinticEaseOut(genType const & a); + + /// Modelled after the piecewise quintic + /// y = (1/2)((2x)^5) ; [0, 0.5) + /// y = (1/2)((2x-2)^5 + 2) ; [0.5, 1] + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType quinticEaseInOut(genType const & a); + + /// Modelled after quarter-cycle of sine wave + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType sineEaseIn(genType const & a); + + /// Modelled after quarter-cycle of sine wave (different phase) + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType sineEaseOut(genType const & a); + + /// Modelled after half sine wave + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType sineEaseInOut(genType const & a); + + /// Modelled after shifted quadrant IV of unit circle + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType circularEaseIn(genType const & a); + + /// Modelled after shifted quadrant II of unit circle + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType circularEaseOut(genType const & a); + + /// Modelled after the piecewise circular function + /// y = (1/2)(1 - sqrt(1 - 4x^2)) ; [0, 0.5) + /// y = (1/2)(sqrt(-(2x - 3)*(2x - 1)) + 1) ; [0.5, 1] + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType circularEaseInOut(genType const & a); + + /// Modelled after the exponential function y = 2^(10(x - 1)) + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType exponentialEaseIn(genType const & a); + + /// Modelled after the exponential function y = -2^(-10x) + 1 + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType exponentialEaseOut(genType const & a); + + /// Modelled after the piecewise exponential + /// y = (1/2)2^(10(2x - 1)) ; [0,0.5) + /// y = -(1/2)*2^(-10(2x - 1))) + 1 ; [0.5,1] + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType exponentialEaseInOut(genType const & a); + + /// Modelled after the damped sine wave y = sin(13pi/2*x)*pow(2, 10 * (x - 1)) + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType elasticEaseIn(genType const & a); + + /// Modelled after the damped sine wave y = sin(-13pi/2*(x + 1))*pow(2, -10x) + 1 + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType elasticEaseOut(genType const & a); + + /// Modelled after the piecewise exponentially-damped sine wave: + /// y = (1/2)*sin(13pi/2*(2*x))*pow(2, 10 * ((2*x) - 1)) ; [0,0.5) + /// y = (1/2)*(sin(-13pi/2*((2x-1)+1))*pow(2,-10(2*x-1)) + 2) ; [0.5, 1] + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType elasticEaseInOut(genType const & a); + + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType backEaseIn(genType const& a); + + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType backEaseOut(genType const& a); + + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType backEaseInOut(genType const& a); + + /// @param a parameter + /// @param o Optional overshoot modifier + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType backEaseIn(genType const& a, genType const& o); + + /// @param a parameter + /// @param o Optional overshoot modifier + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType backEaseOut(genType const& a, genType const& o); + + /// @param a parameter + /// @param o Optional overshoot modifier + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType backEaseInOut(genType const& a, genType const& o); + + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType bounceEaseIn(genType const& a); + + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType bounceEaseOut(genType const& a); + + /// @see gtx_easing + template <typename genType> + GLM_FUNC_DECL genType bounceEaseInOut(genType const& a); + + /// @} +}//namespace glm + +#include "easing.inl" |