@esotericsoftware/spine-core
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The official Spine Runtimes for the web.
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TypeScript
/******************************************************************************
* Spine Runtimes License Agreement
* Last updated April 5, 2025. Replaces all prior versions.
*
* Copyright (c) 2013-2025, Esoteric Software LLC
*
* Integration of the Spine Runtimes into software or otherwise creating
* derivative works of the Spine Runtimes is permitted under the terms and
* conditions of Section 2 of the Spine Editor License Agreement:
* http://esotericsoftware.com/spine-editor-license
*
* Otherwise, it is permitted to integrate the Spine Runtimes into software
* or otherwise create derivative works of the Spine Runtimes (collectively,
* "Products"), provided that each user of the Products must obtain their own
* Spine Editor license and redistribution of the Products in any form must
* include this license and copyright notice.
*
* THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "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 LLC BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
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* THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
import { PathAttachment } from "./attachments/PathAttachment.js";
import type { BonePose } from "./BonePose.js";
import { Constraint } from "./Constraint.js";
import { type PathConstraintData } from "./PathConstraintData.js";
import { PathConstraintPose } from "./PathConstraintPose.js";
import type { Physics } from "./Physics.js";
import type { Skeleton } from "./Skeleton.js";
import type { Slot } from "./Slot.js";
/** Adjusts the rotation, translation, and scale of the constrained bones so they follow a {@link PathAttachment}.
*
* See [Path constraints](http://esotericsoftware.com/spine-path-constraints) in the Spine User Guide. */
export declare class PathConstraint extends Constraint<PathConstraint, PathConstraintData, PathConstraintPose> {
static NONE: number;
static BEFORE: number;
static AFTER: number;
/** The path constraint's setup pose data. */
data: PathConstraintData;
/** The bones that will be modified by this path constraint. */
bones: Array<BonePose>;
/** The slot whose path attachment will be used to constrained the bones. */
slot: Slot;
spaces: number[];
positions: number[];
world: number[];
curves: number[];
lengths: number[];
segments: number[];
constructor(data: PathConstraintData, skeleton: Skeleton);
copy(skeleton: Skeleton): PathConstraint;
update(skeleton: Skeleton, physics: Physics): void;
computeWorldPositions(skeleton: Skeleton, path: PathAttachment, spacesCount: number, tangents: boolean): number[];
addBeforePosition(p: number, temp: Array<number>, i: number, out: Array<number>, o: number): void;
addAfterPosition(p: number, temp: Array<number>, i: number, out: Array<number>, o: number): void;
addCurvePosition(p: number, x1: number, y1: number, cx1: number, cy1: number, cx2: number, cy2: number, x2: number, y2: number, out: Array<number>, o: number, tangents: boolean): void;
sort(skeleton: Skeleton): void;
private sortPathSlot;
private sortPath;
isSourceActive(): boolean;
}