@esotericsoftware/spine-core
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The official Spine Runtimes for the web.
158 lines • 22.4 kB
JavaScript
/******************************************************************************
* 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,
* BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) 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
* THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
import { Utils } from "../Utils.js";
import { MeshAttachment } from "./MeshAttachment.js";
import { RegionAttachment } from "./RegionAttachment.js";
/** Holds texture regions, UVs, and vertex offsets for rendering a region or mesh attachment. {@link regions Regions} must be
* populated and {@link update} called before use. */
export class Sequence {
static _nextID = 0;
id = Sequence.nextID();
/** The list of texture regions this sequence will display. */
regions;
pathSuffix;
uvs;
/** Returns vertex offsets from the center of a {@link RegionAttachment}. Invalid to call for a {@link MeshAttachment}. */
offsets;
/** The starting number for the numeric {@link getPath | path} suffix. */
start = 0;
/** The minimum number of digits in the numeric {@link getPath | path} suffix, for zero padding. 0 for no zero
* padding. */
digits = 0;
/** The index of the region to show for the setup pose. */
setupIndex = 0;
/** @param count The number of texture regions this sequence will display.
* @param pathSuffix If true, the {@link getPath | path} has a numeric suffix. If false, all regions will use the
* same path, so `count` should be 1. */
constructor(count, pathSuffix) {
this.regions = new Array(count);
this.pathSuffix = pathSuffix;
}
copy() {
const regionCount = this.regions.length;
const copy = new Sequence(regionCount, this.pathSuffix);
Utils.arrayCopy(this.regions, 0, copy.regions, 0, regionCount);
copy.start = this.start;
copy.digits = this.digits;
copy.setupIndex = this.setupIndex;
if (this.uvs != null) {
const length = this.uvs[0].length;
copy.uvs = [];
for (let i = 0; i < regionCount; i++) {
copy.uvs[i] = Utils.newFloatArray(length);
Utils.arrayCopy(this.uvs[i], 0, copy.uvs[i], 0, length);
}
}
if (this.offsets != null) {
copy.offsets = [];
for (let i = 0; i < regionCount; i++) {
copy.offsets[i] = [];
Utils.arrayCopy(this.offsets[i], 0, copy.offsets[i], 0, 8);
}
}
return copy;
}
/** Computes UVs and offsets for the specified attachment. Must be called if the regions or attachment properties are
* changed. */
update(attachment) {
const regionCount = this.regions.length;
if (attachment instanceof RegionAttachment) {
this.uvs = [];
this.offsets = [];
for (let i = 0; i < regionCount; i++) {
this.uvs[i] = Utils.newFloatArray(8);
this.offsets[i] = [];
RegionAttachment.computeUVs(this.regions[i], attachment.x, attachment.y, attachment.scaleX, attachment.scaleY, attachment.rotation, attachment.width, attachment.height, this.offsets[i], this.uvs[i]);
}
}
else if (attachment instanceof MeshAttachment) {
const regionUVs = attachment.regionUVs;
this.uvs = [];
this.offsets = undefined;
for (let i = 0; i < regionCount; i++) {
this.uvs[i] = Utils.newFloatArray(regionUVs.length);
MeshAttachment.computeUVs(this.regions[i], regionUVs, this.uvs[i]);
}
}
}
/** Returns the {@link regions} index for the {@link SlotPose.getSequenceIndex}. */
resolveIndex(pose) {
let index = pose.sequenceIndex;
if (index === -1)
index = this.setupIndex;
if (index >= this.regions.length)
index = this.regions.length - 1;
return index;
}
/** Returns the UVs for the specified index. {@link regions Regions} must be populated and {@link update} called
* before calling this method. */
getUVs(index) {
// biome-ignore lint/style/noNonNullAssertion: uvs are always defined after updateSequence
return this.uvs[index];
}
/** Returns true if the {@link getPath | path} has a numeric suffix. */
hasPathSuffix() {
return this.pathSuffix;
}
/** Returns the specified base path with an optional numeric suffix for the specified index. */
getPath(basePath, index) {
if (!this.pathSuffix)
return basePath;
let result = basePath;
const frame = (this.start + index).toString();
for (let i = this.digits - frame.length; i > 0; i--)
result += "0";
result += frame;
return result;
}
static nextID() {
return Sequence._nextID++;
}
}
/** Controls how {@link Sequence.regions} are displayed over time. */
export var SequenceMode;
(function (SequenceMode) {
SequenceMode[SequenceMode["hold"] = 0] = "hold";
SequenceMode[SequenceMode["once"] = 1] = "once";
SequenceMode[SequenceMode["loop"] = 2] = "loop";
SequenceMode[SequenceMode["pingpong"] = 3] = "pingpong";
SequenceMode[SequenceMode["onceReverse"] = 4] = "onceReverse";
SequenceMode[SequenceMode["loopReverse"] = 5] = "loopReverse";
SequenceMode[SequenceMode["pingpongReverse"] = 6] = "pingpongReverse";
})(SequenceMode || (SequenceMode = {}));
export const SequenceModeValues = [
SequenceMode.hold,
SequenceMode.once,
SequenceMode.loop,
SequenceMode.pingpong,
SequenceMode.onceReverse,
SequenceMode.loopReverse,
SequenceMode.pingpongReverse
];
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Replaces all prior versions.\n *\n * Copyright (c) 2013-2025, Esoteric Software LLC\n *\n * Integration of the Spine Runtimes into software or otherwise creating\n * derivative works of the Spine Runtimes is permitted under the terms and\n * conditions of Section 2 of the Spine Editor License Agreement:\n * http://esotericsoftware.com/spine-editor-license\n *\n * Otherwise, it is permitted to integrate the Spine Runtimes into software\n * or otherwise create derivative works of the Spine Runtimes (collectively,\n * \"Products\"), provided that each user of the Products must obtain their own\n * Spine Editor license and redistribution of the Products in any form must\n * include this license and copyright notice.\n *\n * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC \"AS IS\" AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY\n * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,\n * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND\n * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF\n * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n *****************************************************************************/\n\nimport type { SlotPose } from \"../SlotPose.js\";\nimport type { TextureRegion } from \"../Texture.js\";\nimport { type NumberArrayLike, Utils } from \"../Utils.js\";\nimport type { HasSequence } from \"./HasSequence.js\";\nimport { MeshAttachment } from \"./MeshAttachment.js\";\nimport { RegionAttachment } from \"./RegionAttachment.js\";\n\n/** Holds texture regions, UVs, and vertex offsets for rendering a region or mesh attachment. {@link regions Regions} must be\n * populated and {@link update} called before use. */\nexport class Sequence {\n\tprivate static _nextID = 0;\n\n\tid = Sequence.nextID();\n\n\t/** The list of texture regions this sequence will display. */\n\tregions: Array<TextureRegion | null>;\n\n\treadonly pathSuffix: boolean;\n\tuvs?: NumberArrayLike[];\n\n\t/** Returns vertex offsets from the center of a {@link RegionAttachment}. Invalid to call for a {@link MeshAttachment}. */\n\toffsets?: number[][];\n\n\t/** The starting number for the numeric {@link getPath | path} suffix. */\n\tstart = 0;\n\n\t/** The minimum number of digits in the numeric {@link getPath | path} suffix, for zero padding. 0 for no zero\n\t * padding. */\n\tdigits = 0;\n\n\t/** The index of the region to show for the setup pose. */\n\tsetupIndex = 0;\n\n\t/** @param count The number of texture regions this sequence will display.\n\t * @param pathSuffix If true, the {@link getPath | path} has a numeric suffix. If false, all regions will use the\n\t * same path, so `count` should be 1. */\n\tconstructor (count: number, pathSuffix: boolean) {\n\t\tthis.regions = new Array<TextureRegion>(count);\n\t\tthis.pathSuffix = pathSuffix;\n\t}\n\n\tcopy (): Sequence {\n\t\tconst regionCount = this.regions.length;\n\t\tconst copy = new Sequence(regionCount, this.pathSuffix);\n\t\tUtils.arrayCopy(this.regions, 0, copy.regions, 0, regionCount);\n\t\tcopy.start = this.start;\n\t\tcopy.digits = this.digits;\n\t\tcopy.setupIndex = this.setupIndex;\n\n\t\tif (this.uvs != null) {\n\t\t\tconst length = this.uvs[0].length;\n\t\t\tcopy.uvs = [];\n\t\t\tfor (let i = 0; i < regionCount; i++) {\n\t\t\t\tcopy.uvs[i] = Utils.newFloatArray(length);\n\t\t\t\tUtils.arrayCopy(this.uvs[i], 0, copy.uvs[i], 0, length);\n\t\t\t}\n\t\t}\n\t\tif (this.offsets != null) {\n\t\t\tcopy.offsets = [];\n\t\t\tfor (let i = 0; i < regionCount; i++) {\n\t\t\t\tcopy.offsets[i] = [];\n\t\t\t\tUtils.arrayCopy(this.offsets[i], 0, copy.offsets[i], 0, 8);\n\t\t\t}\n\t\t}\n\n\t\treturn copy;\n\t}\n\n\t/** Computes UVs and offsets for the specified attachment. Must be called if the regions or attachment properties are\n\t  * changed. */\n\tpublic update (attachment: HasSequence) {\n\t\tconst regionCount = this.regions.length;\n\t\tif (attachment instanceof RegionAttachment) {\n\t\t\tthis.uvs = [];\n\t\t\tthis.offsets = [];\n\t\t\tfor (let i = 0; i < regionCount; i++) {\n\t\t\t\tthis.uvs[i] = Utils.newFloatArray(8);\n\t\t\t\tthis.offsets[i] = [];\n\t\t\t\tRegionAttachment.computeUVs(this.regions[i], attachment.x, attachment.y, attachment.scaleX, attachment.scaleY, attachment.rotation,\n\t\t\t\t\tattachment.width, attachment.height, this.offsets[i], this.uvs[i]);\n\t\t\t}\n\t\t} else if (attachment instanceof MeshAttachment) {\n\t\t\tconst regionUVs = attachment.regionUVs;\n\t\t\tthis.uvs = [];\n\t\t\tthis.offsets = undefined;\n\t\t\tfor (let i = 0; i < regionCount; i++) {\n\t\t\t\tthis.uvs[i] = Utils.newFloatArray(regionUVs.length);\n\t\t\t\tMeshAttachment.computeUVs(this.regions[i], regionUVs, this.uvs[i]);\n\t\t\t}\n\t\t}\n\t}\n\n\t/** Returns the {@link regions} index for the {@link SlotPose.getSequenceIndex}. */\n\tresolveIndex (pose: SlotPose): number {\n\t\tlet index = pose.sequenceIndex;\n\t\tif (index === -1) index = this.setupIndex;\n\t\tif (index >= this.regions.length) index = this.regions.length - 1;\n\t\treturn index;\n\t}\n\n\t/** Returns the UVs for the specified index. {@link regions Regions} must be populated and {@link update} called\n\t  * before calling this method. */\n\tgetUVs (index: number): Float32Array {\n\t\t// biome-ignore lint/style/noNonNullAssertion: uvs are always defined after updateSequence\n\t\treturn this.uvs![index] as Float32Array;\n\t}\n\n\t/** Returns true if the {@link getPath | path} has a numeric suffix. */\n\thasPathSuffix (): boolean {\n\t\treturn this.pathSuffix;\n\t}\n\n\t/** Returns the specified base path with an optional numeric suffix for the specified index. */\n\tgetPath (basePath: string, index: number): string {\n\t\tif (!this.pathSuffix) return basePath;\n\t\tlet result = basePath;\n\t\tconst frame = (this.start + index).toString();\n\t\tfor (let i = this.digits - frame.length; i > 0; i--)\n\t\t\tresult += \"0\";\n\t\tresult += frame;\n\t\treturn result;\n\t}\n\n\tprivate static nextID (): number {\n\t\treturn Sequence._nextID++;\n\t}\n}\n\n/** Controls how {@link Sequence.regions} are displayed over time. */\nexport enum SequenceMode {\n\thold = 0,\n\tonce = 1,\n\tloop = 2,\n\tpingpong = 3,\n\tonceReverse = 4,\n\tloopReverse = 5,\n\tpingpongReverse = 6\n}\n\nexport const SequenceModeValues = [\n\tSequenceMode.hold,\n\tSequenceMode.once,\n\tSequenceMode.loop,\n\tSequenceMode.pingpong,\n\tSequenceMode.onceReverse,\n\tSequenceMode.loopReverse,\n\tSequenceMode.pingpongReverse\n];\n"]}