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67 lines
3.0 KiB
67 lines
3.0 KiB
/****************************************************************************** |
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* Spine Runtimes License Agreement |
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* Last updated January 1, 2020. Replaces all prior versions. |
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* |
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* Copyright (c) 2013-2020, Esoteric Software LLC |
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* |
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* Integration of the Spine Runtimes into software or otherwise creating |
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* derivative works of the Spine Runtimes is permitted under the terms and |
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* conditions of Section 2 of the Spine Editor License Agreement: |
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* http://esotericsoftware.com/spine-editor-license |
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* |
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* Otherwise, it is permitted to integrate the Spine Runtimes into software |
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* or otherwise create derivative works of the Spine Runtimes (collectively, |
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* "Products"), provided that each user of the Products must obtain their own |
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* Spine Editor license and redistribution of the Products in any form must |
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* include this license and copyright notice. |
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* |
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* THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY |
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* 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 ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY |
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* 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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* BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) 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 |
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* THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*****************************************************************************/ |
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namespace Spine { |
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/// <summary> |
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/// An attachment which is a single point and a rotation. This can be used to spawn projectiles, particles, etc. A bone can be |
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/// used in similar ways, but a PointAttachment is slightly less expensive to compute and can be hidden, shown, and placed in a |
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/// skin. |
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/// <p> |
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/// See <a href="http://esotericsoftware.com/spine-point-attachments">Point Attachments</a> in the Spine User Guide. |
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/// </summary> |
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public class PointAttachment : Attachment { |
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internal float x, y, rotation; |
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public float X { get { return x; } set { x = value; } } |
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public float Y { get { return y; } set { y = value; } } |
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public float Rotation { get { return rotation; } set { rotation = value; } } |
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public PointAttachment (string name) |
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: base(name) { |
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} |
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public void ComputeWorldPosition (Bone bone, out float ox, out float oy) { |
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bone.LocalToWorld(this.x, this.y, out ox, out oy); |
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} |
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public float ComputeWorldRotation (Bone bone) { |
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float cos = MathUtils.CosDeg(rotation), sin = MathUtils.SinDeg(rotation); |
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float ix = cos * bone.a + sin * bone.b; |
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float iy = cos * bone.c + sin * bone.d; |
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return MathUtils.Atan2(iy, ix) * MathUtils.RadDeg; |
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} |
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public override Attachment Copy () { |
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PointAttachment copy = new PointAttachment(this.Name); |
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copy.x = x; |
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copy.y = y; |
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copy.rotation = rotation; |
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return copy; |
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} |
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} |
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}
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