spine-runtimes/spine-csharp/src/Attachments/BoundingBoxAttachment.cs
NathanSweet b0c96fd66b Typo
2014-01-11 21:20:46 +01:00

58 lines
2.5 KiB
C#

/******************************************************************************
* Spine Runtimes Software License
* Version 2
*
* Copyright (c) 2013, Esoteric Software
* All rights reserved.
*
* You are granted a perpetual, non-exclusive, non-sublicensable and
* non-transferable license to install, execute and perform the Spine Runtimes
* Software (the "Software") solely for internal use. Without the written
* permission of Esoteric Software, you may not (a) modify, translate, adapt or
* otherwise create derivative works, improvements of the Software or develop
* new applications using the Software 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 SOFTARE 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.
*****************************************************************************/
using System;
namespace Spine {
/// <summary>Attachment that has a polygon for bounds checking.</summary>
public class BoundingBoxAttachment : Attachment {
public float[] Vertices { get; set; }
public BoundingBoxAttachment (string name)
: base(name) {
}
/// <param name="worldVertices">Must have at least the same length as this attachment's vertices.</param>
public void ComputeWorldVertices (float x, float y, Bone bone, float[] worldVertices) {
x += bone.worldX;
y += bone.worldY;
float m00 = bone.m00;
float m01 = bone.m01;
float m10 = bone.m10;
float m11 = bone.m11;
float[] vertices = Vertices;
for (int i = 0, n = vertices.Length; i < n; i += 2) {
float px = vertices[i];
float py = vertices[i + 1];
worldVertices[i] = px * m00 + py * m01 + x;
worldVertices[i + 1] = px * m10 + py * m11 + y;
}
}
}
}