mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
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95 lines
4.2 KiB
C
95 lines
4.2 KiB
C
/******************************************************************************
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* Spine Runtime Software License - Version 1.1
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*
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* Copyright (c) 2013, Esoteric Software
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms in whole or in part, with
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* or without modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. A Spine Single User License, Professional License, or Education License must
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* be purchased from Esoteric Software and the license must remain valid:
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* http://esotericsoftware.com/
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* 2. Redistributions of source code must retain this license, which is the
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* above copyright notice, this declaration of conditions and the following
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* disclaimer.
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* 3. Redistributions in binary form must reproduce this license, which is the
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* above copyright notice, this declaration of conditions and the following
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* disclaimer, in the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY 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 THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY 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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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 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 THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#ifndef SPINE_SKELETONBOUNDS_H_
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#define SPINE_SKELETONBOUNDS_H_
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#include <spine/BoundingBoxAttachment.h>
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#include <spine/Skeleton.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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float* const vertices;
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int count;
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int capacity;
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} BoundingPolygon;
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BoundingPolygon* BoundingPolygon_create (int capacity);
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void BoundingPolygon_dispose (BoundingPolygon* self);
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int/*bool*/BoundingPolygon_containsPoint (BoundingPolygon* polygon, float x, float y);
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int/*bool*/BoundingPolygon_intersectsSegment (BoundingPolygon* polygon, float x1, float y1, float x2, float y2);
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/**/
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typedef struct {
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int count;
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BoundingBoxAttachment** boundingBoxes;
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BoundingPolygon** polygons;
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float minX, minY, maxX, maxY;
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} SkeletonBounds;
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SkeletonBounds* SkeletonBounds_create ();
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void SkeletonBounds_dispose (SkeletonBounds* self);
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void SkeletonBounds_update (SkeletonBounds* self, Skeleton* skeleton, int/*bool*/updateAabb);
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/** Returns true if the axis aligned bounding box contains the point. */
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int/*bool*/SkeletonBounds_aabbContainsPoint (SkeletonBounds* self, float x, float y);
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/** Returns true if the axis aligned bounding box intersects the line segment. */
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int/*bool*/SkeletonBounds_aabbIntersectsSegment (SkeletonBounds* self, float x1, float y1, float x2, float y2);
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/** Returns true if the axis aligned bounding box intersects the axis aligned bounding box of the specified bounds. */
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int/*bool*/SkeletonBounds_aabbIntersectsSkeleton (SkeletonBounds* self, SkeletonBounds* bounds);
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/** Returns the first bounding box attachment that contains the point, or null. When doing many checks, it is usually more
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* efficient to only call this method if SkeletonBounds_aabbContainsPoint returns true. */
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BoundingBoxAttachment* SkeletonBounds_containsPoint (SkeletonBounds* self, float x, float y);
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/** Returns the first bounding box attachment that contains the line segment, or null. When doing many checks, it is usually
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* more efficient to only call this method if SkeletonBounds_aabbIntersectsSegment returns true. */
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BoundingBoxAttachment* SkeletonBounds_intersectsSegment (SkeletonBounds* self, float x1, float y1, float x2, float y2);
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/** Returns the polygon for the specified bounding box, or null. */
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BoundingPolygon* SkeletonBounds_getPolygon (SkeletonBounds* self, BoundingBoxAttachment* boundingBox);
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#ifdef __cplusplus
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}
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#endif
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#endif /* SPINE_SKELETONBOUNDS_H_ */
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