spine-runtimes/spine-csharp/src/TransformConstraint.cs
2016-02-17 03:52:22 +01:00

81 lines
3.3 KiB
C#

/******************************************************************************
* Spine Runtimes Software License
* Version 2.3
*
* Copyright (c) 2013-2015, 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 (the "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 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 SOFTWARE 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;
using System.Collections.Generic;
namespace Spine {
public class TransformConstraint : IUpdatable {
internal TransformConstraintData data;
internal Bone bone, target;
internal float translateMix;
internal float x, y;
public TransformConstraintData Data { get { return data; } }
public Bone Bone { get { return bone; } set { bone = value; } }
public Bone Target { get { return target; } set { target = value; } }
public float TranslateMix { get { return translateMix; } set { translateMix = value; } }
public float X { get { return x; } set { x = value; } }
public float Y { get { return y; } set { y = value; } }
public TransformConstraint (TransformConstraintData data, Skeleton skeleton) {
if (data == null) throw new ArgumentNullException("data cannot be null.");
if (skeleton == null) throw new ArgumentNullException("skeleton cannot be null.");
this.data = data;
translateMix = data.translateMix;
x = data.x;
y = data.y;
bone = skeleton.FindBone(data.bone.name);
target = skeleton.FindBone(data.target.name);
}
public void Update () {
Apply();
}
public void Apply () {
float translateMix = this.translateMix;
if (translateMix > 0) {
Bone bone = this.bone;
float tx, ty;
target.LocalToWorld(x, y, out tx, out ty);
bone.worldX += (tx - bone.worldX) * translateMix;
bone.worldY += (ty - bone.worldY) * translateMix;
}
}
override public String ToString () {
return data.name;
}
}
}