mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
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100 lines
3.8 KiB
C++
100 lines
3.8 KiB
C++
/******************************************************************************
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* Spine Runtimes License Agreement
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* Last updated April 5, 2025. Replaces all prior versions.
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*
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* Copyright (c) 2013-2025, Esoteric Software LLC
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*
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* Integration of the Spine Runtimes into software or otherwise creating
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* derivative works of the Spine Runtimes is permitted under the terms and
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* conditions of Section 2 of the Spine Editor License Agreement:
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* http://esotericsoftware.com/spine-editor-license
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*
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* Otherwise, it is permitted to integrate the Spine Runtimes into software
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* or otherwise create derivative works of the Spine Runtimes (collectively,
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* "Products"), provided that each user of the Products must obtain their own
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* Spine Editor license and redistribution of the Products in any form must
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* include this license and copyright notice.
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*
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* THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
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* BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#ifndef Spine_CurveTimeline_h
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#define Spine_CurveTimeline_h
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#include <spine/Timeline.h>
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#include <spine/Array.h>
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namespace spine {
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/// Base class for frames that use an interpolation bezier curve.
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class SP_API CurveTimeline : public Timeline {
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RTTI_DECL
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public:
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explicit CurveTimeline(size_t frameCount, size_t frameEntries, size_t bezierCount);
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virtual ~CurveTimeline();
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void setLinear(size_t frame);
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void setStepped(size_t frame);
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virtual void setBezier(size_t bezier, size_t frame, float value, float time1, float value1, float cx1, float cy1, float cx2, float cy2,
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float time2, float value2);
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float getBezierValue(float time, size_t frame, size_t valueOffset, size_t i);
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Array<float> &getCurves();
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protected:
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static const int LINEAR = 0;
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static const int STEPPED = 1;
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static const int BEZIER = 2;
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static const int BEZIER_SIZE = 18;
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Array<float> _curves;// type, x, y, ...
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};
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/// The base class for a CurveTimeline that sets one property.
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class SP_API CurveTimeline1 : public CurveTimeline {
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RTTI_DECL
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public:
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/// @param frameCount The number of frames for this timeline.
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/// @param bezierCount The maximum number of Bezier curves.
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explicit CurveTimeline1(size_t frameCount, size_t bezierCount);
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virtual ~CurveTimeline1();
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/// Sets the time and value for the specified frame.
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/// @param frame Between 0 and frameCount, inclusive.
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/// @param time The frame time in seconds.
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void setFrame(size_t frame, float time, float value);
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/// Returns the interpolated value for the specified time.
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float getCurveValue(float time);
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float getRelativeValue(float time, float alpha, MixBlend blend, float current, float setup);
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float getAbsoluteValue(float time, float alpha, MixBlend blend, float current, float setup);
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float getAbsoluteValue(float time, float alpha, MixBlend blend, float current, float setup, float value);
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float getScaleValue(float time, float alpha, MixBlend blend, MixDirection direction, float current, float setup);
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protected:
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static const int ENTRIES = 2;
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static const int VALUE = 1;
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};
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}
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#endif /* Spine_CurveTimeline_h */
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