mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
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70 lines
3.0 KiB
TypeScript
70 lines
3.0 KiB
TypeScript
/******************************************************************************
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* Spine Runtimes License Agreement
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* Last updated May 1, 2019. Replaces all prior versions.
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*
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* Copyright (c) 2013-2019, 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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* THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS
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* INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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module spine {
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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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*
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* See [Point Attachments](http://esotericsoftware.com/spine-point-attachments) in the Spine User Guide. */
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export class PointAttachment extends VertexAttachment {
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x: number; y: number; rotation: number;
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/** The color of the point attachment as it was in Spine. Available only when nonessential data was exported. Point attachments
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* are not usually rendered at runtime. */
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color = new Color(0.38, 0.94, 0, 1);
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constructor (name: string) {
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super(name);
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}
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computeWorldPosition (bone: Bone, point: Vector2) {
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point.x = this.x * bone.a + this.y * bone.b + bone.worldX;
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point.y = this.x * bone.c + this.y * bone.d + bone.worldY;
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return point;
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}
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computeWorldRotation (bone: Bone) {
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let cos = MathUtils.cosDeg(this.rotation), sin = MathUtils.sinDeg(this.rotation);
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let x = cos * bone.a + sin * bone.b;
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let y = cos * bone.c + sin * bone.d;
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return Math.atan2(y, x) * MathUtils.radDeg;
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}
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copy (): Attachment {
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let copy = new PointAttachment(name);
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copy.x = this.x;
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copy.y = this.y;
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copy.rotation = this.rotation;
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copy.color.setFromColor(this.color);
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return copy;
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}
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}
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}
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