PointAttachment.c
2.81 KB
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/******************************************************************************
* Spine Runtimes Software License v2.5
*
* Copyright (c) 2013-2016, Esoteric Software
* All rights reserved.
*
* You are granted a perpetual, non-exclusive, non-sublicensable, and
* non-transferable license to use, install, execute, and perform the Spine
* Runtimes software and derivative works solely for personal or internal
* use. Without the written permission of Esoteric Software (see Section 2 of
* the Spine Software License Agreement), you may not (a) modify, translate,
* adapt, or develop new applications using the Spine Runtimes or otherwise
* create derivative works or improvements of the Spine Runtimes or (b) remove,
* delete, alter, or obscure any trademarks or any copyright, trademark, patent,
* or other intellectual property or proprietary rights notices on or in the
* Software, including any copy thereof. Redistributions in binary or source
* form must include this license and terms.
*
* THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
* USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#include <spine/PointAttachment.h>
#include <spine/extension.h>
void _spPointAttachment_dispose (spAttachment* attachment) {
spPathAttachment* self = SUB_CAST(spPathAttachment, attachment);
_spVertexAttachment_deinit(SUPER(self));
FREE(self);
}
spPointAttachment* spPointAttachment_create (const char* name) {
spPointAttachment* self = NEW(spPointAttachment);
_spVertexAttachment_init(SUPER(self));
_spAttachment_init(SUPER(SUPER(self)), name, SP_ATTACHMENT_POINT, _spPointAttachment_dispose);
return self;
}
void spPointAttachment_computeWorldPosition (spPointAttachment* self, spBone* bone, float* x, float* y) {
*x = self->x * bone->a + self->y * bone->b + bone->worldX;
*y = self->x * bone->c + self->y * bone->d + bone->worldY;
}
float spPointAttachment_computeWorldRotation (spPointAttachment* self, spBone* bone) {
float cosine, sine, x, y;
cosine = COS_DEG(self->rotation);
sine = SIN_DEG(self->rotation);
x = cosine * bone->a + sine * bone->b;
y = cosine * bone->c + sine * bone->d;
return ATAN2(y, x) * RAD_DEG;
}