spine-runtimes/spine-c/src/spine/BoundingBoxAttachment.c
2013-09-24 15:36:10 +02:00

58 lines
2.6 KiB
C

/******************************************************************************
* Spine Runtime Software License - Version 1.0
*
* Copyright (c) 2013, Esoteric Software
* All rights reserved.
*
* Redistribution and use in source and binary forms in whole or in part, with
* or without modification, are permitted provided that the following conditions
* are met:
*
* 1. A Spine Single User License or Spine Professional License must be
* purchased from Esoteric Software and the license must remain valid:
* http://esotericsoftware.com/
* 2. Redistributions of source code must retain this license, which is the
* above copyright notice, this declaration of conditions and the following
* disclaimer.
* 3. Redistributions in binary form must reproduce this license, which is the
* above copyright notice, this declaration of conditions and the following
* disclaimer, in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 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/BoundingBoxAttachment.h>
#include <math.h>
#include <spine/extension.h>
BoundingBoxAttachment* BoundingBoxAttachment_create (const char* name) {
BoundingBoxAttachment* self = NEW(BoundingBoxAttachment);
_Attachment_init(SUPER(self), name, ATTACHMENT_BOUNDING_BOX, _Attachment_deinit);
return self;
}
void BoundingBoxAttachment_computeWorldVertices (BoundingBoxAttachment* self, float x, float y, Bone* bone, float* worldVertices) {
int i;
float px, py;
float* vertices = self->vertices;
x += bone->worldX;
y += bone->worldY;
for (i = 0; i < self->verticesCount; i += 2) {
px = vertices[i];
py = vertices[i + 1];
worldVertices[i] = px * bone->m00 + py * bone->m01 + x;
worldVertices[i + 1] = px * bone->m10 + py * bone->m11 + y;
}
}