mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
synced 2026-02-06 15:24:55 +08:00
302 lines
11 KiB
TypeScript
302 lines
11 KiB
TypeScript
/******************************************************************************
|
|
* Spine Runtimes Software License v2.5
|
|
*
|
|
* Copyright (c) 2013-2016, 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 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 develop new applications using the Spine Runtimes or otherwise
|
|
* create derivative works or improvements of the Spine Runtimes 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, 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 THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*****************************************************************************/
|
|
|
|
module spine {
|
|
export class Bone implements Updatable {
|
|
data: BoneData;
|
|
skeleton: Skeleton;
|
|
parent: Bone;
|
|
children = new Array<Bone>();
|
|
x = 0; y = 0; rotation = 0; scaleX = 0; scaleY = 0; shearX = 0; shearY = 0;
|
|
ax = 0; ay = 0; arotation = 0; ascaleX = 0; ascaleY = 0; ashearX = 0; ashearY = 0;
|
|
appliedValid = false;
|
|
|
|
a = 0; b = 0; worldX = 0;
|
|
c = 0; d = 0; worldY = 0;
|
|
|
|
sorted = false;
|
|
|
|
/** @param parent May be null. */
|
|
constructor (data: BoneData, skeleton: Skeleton, parent: Bone) {
|
|
if (data == null) throw new Error("data cannot be null.");
|
|
if (skeleton == null) throw new Error("skeleton cannot be null.");
|
|
this.data = data;
|
|
this.skeleton = skeleton;
|
|
this.parent = parent;
|
|
this.setToSetupPose();
|
|
}
|
|
|
|
/** Same as {@link #updateWorldTransform()}. This method exists for Bone to implement {@link Updatable}. */
|
|
update () {
|
|
this.updateWorldTransformWith(this.x, this.y, this.rotation, this.scaleX, this.scaleY, this.shearX, this.shearY);
|
|
}
|
|
|
|
/** Computes the world transform using the parent bone and this bone's local transform. */
|
|
updateWorldTransform () {
|
|
this.updateWorldTransformWith(this.x, this.y, this.rotation, this.scaleX, this.scaleY, this.shearX, this.shearY);
|
|
}
|
|
|
|
/** Computes the world transform using the parent bone and the specified local transform. */
|
|
updateWorldTransformWith (x: number, y: number, rotation: number, scaleX: number, scaleY: number, shearX: number, shearY: number) {
|
|
this.ax = x;
|
|
this.ay = y;
|
|
this.arotation = rotation;
|
|
this.ascaleX = scaleX;
|
|
this.ascaleY = scaleY;
|
|
this.ashearX = shearX;
|
|
this.ashearY = shearY;
|
|
this.appliedValid = true;
|
|
|
|
let parent = this.parent;
|
|
if (parent == null) { // Root bone.
|
|
let rotationY = rotation + 90 + shearY;
|
|
let la = MathUtils.cosDeg(rotation + shearX) * scaleX;
|
|
let lb = MathUtils.cosDeg(rotationY) * scaleY;
|
|
let lc = MathUtils.sinDeg(rotation + shearX) * scaleX;
|
|
let ld = MathUtils.sinDeg(rotationY) * scaleY;
|
|
let skeleton = this.skeleton;
|
|
if (skeleton.flipX) {
|
|
x = -x;
|
|
la = -la;
|
|
lb = -lb;
|
|
}
|
|
if (skeleton.flipY) {
|
|
y = -y;
|
|
lc = -lc;
|
|
ld = -ld;
|
|
}
|
|
this.a = la;
|
|
this.b = lb;
|
|
this.c = lc;
|
|
this.d = ld;
|
|
this.worldX = x + skeleton.x;
|
|
this.worldY = y + skeleton.y;
|
|
return;
|
|
}
|
|
|
|
let pa = parent.a, pb = parent.b, pc = parent.c, pd = parent.d;
|
|
this.worldX = pa * x + pb * y + parent.worldX;
|
|
this.worldY = pc * x + pd * y + parent.worldY;
|
|
|
|
switch (this.data.transformMode) {
|
|
case TransformMode.Normal: {
|
|
let rotationY = rotation + 90 + shearY;
|
|
let la = MathUtils.cosDeg(rotation + shearX) * scaleX;
|
|
let lb = MathUtils.cosDeg(rotationY) * scaleY;
|
|
let lc = MathUtils.sinDeg(rotation + shearX) * scaleX;
|
|
let ld = MathUtils.sinDeg(rotationY) * scaleY;
|
|
this.a = pa * la + pb * lc;
|
|
this.b = pa * lb + pb * ld;
|
|
this.c = pc * la + pd * lc;
|
|
this.d = pc * lb + pd * ld;
|
|
return;
|
|
}
|
|
case TransformMode.OnlyTranslation: {
|
|
let rotationY = rotation + 90 + shearY;
|
|
this.a = MathUtils.cosDeg(rotation + shearX) * scaleX;
|
|
this.b = MathUtils.cosDeg(rotationY) * scaleY;
|
|
this.c = MathUtils.sinDeg(rotation + shearX) * scaleX;
|
|
this.d = MathUtils.sinDeg(rotationY) * scaleY;
|
|
break;
|
|
}
|
|
case TransformMode.NoRotationOrReflection: {
|
|
let s = pa * pa + pc * pc;
|
|
let prx = 0;
|
|
if (s > 0.0001) {
|
|
s = Math.abs(pa * pd - pb * pc) / s;
|
|
pb = pc * s;
|
|
pd = pa * s;
|
|
prx = Math.atan2(pc, pa) * MathUtils.radDeg;
|
|
} else {
|
|
pa = 0;
|
|
pc = 0;
|
|
prx = 90 - Math.atan2(pd, pb) * MathUtils.radDeg;
|
|
}
|
|
let rx = rotation + shearX - prx;
|
|
let ry = rotation + shearY - prx + 90;
|
|
let la = MathUtils.cosDeg(rx) * scaleX;
|
|
let lb = MathUtils.cosDeg(ry) * scaleY;
|
|
let lc = MathUtils.sinDeg(rx) * scaleX;
|
|
let ld = MathUtils.sinDeg(ry) * scaleY;
|
|
this.a = pa * la - pb * lc;
|
|
this.b = pa * lb - pb * ld;
|
|
this.c = pc * la + pd * lc;
|
|
this.d = pc * lb + pd * ld;
|
|
break;
|
|
}
|
|
case TransformMode.NoScale:
|
|
case TransformMode.NoScaleOrReflection: {
|
|
let cos = MathUtils.cosDeg(rotation);
|
|
let sin = MathUtils.sinDeg(rotation);
|
|
let za = pa * cos + pb * sin;
|
|
let zc = pc * cos + pd * sin;
|
|
let s = Math.sqrt(za * za + zc * zc);
|
|
if (s > 0.00001) s = 1 / s;
|
|
za *= s;
|
|
zc *= s;
|
|
s = Math.sqrt(za * za + zc * zc);
|
|
let r = Math.PI / 2 + Math.atan2(zc, za);
|
|
let zb = Math.cos(r) * s;
|
|
let zd = Math.sin(r) * s;
|
|
let la = MathUtils.cosDeg(shearX) * scaleX;
|
|
let lb = MathUtils.cosDeg(90 + shearY) * scaleY;
|
|
let lc = MathUtils.sinDeg(shearX) * scaleX;
|
|
let ld = MathUtils.sinDeg(90 + shearY) * scaleY;
|
|
this.a = za * la + zb * lc;
|
|
this.b = za * lb + zb * ld;
|
|
this.c = zc * la + zd * lc;
|
|
this.d = zc * lb + zd * ld;
|
|
if (this.data.transformMode != TransformMode.NoScaleOrReflection ? pa * pd - pb * pc < 0 : this.skeleton.flipX != this.skeleton.flipY) {
|
|
this.b = -this.b;
|
|
this.d = -this.d;
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
if (this.skeleton.flipX) {
|
|
this.a = -this.a;
|
|
this.b = -this.b;
|
|
}
|
|
if (this.skeleton.flipY) {
|
|
this.c = -this.c;
|
|
this.d = -this.d;
|
|
}
|
|
}
|
|
|
|
setToSetupPose () {
|
|
let data = this.data;
|
|
this.x = data.x;
|
|
this.y = data.y;
|
|
this.rotation = data.rotation;
|
|
this.scaleX = data.scaleX;
|
|
this.scaleY = data.scaleY;
|
|
this.shearX = data.shearX;
|
|
this.shearY = data.shearY;
|
|
}
|
|
|
|
getWorldRotationX () {
|
|
return Math.atan2(this.c, this.a) * MathUtils.radDeg;
|
|
}
|
|
|
|
getWorldRotationY () {
|
|
return Math.atan2(this.d, this.b) * MathUtils.radDeg;
|
|
}
|
|
|
|
getWorldScaleX () {
|
|
return Math.sqrt(this.a * this.a + this.c * this.c);
|
|
}
|
|
|
|
getWorldScaleY () {
|
|
return Math.sqrt(this.b * this.b + this.d * this.d);
|
|
}
|
|
|
|
/** Computes the individual applied transform values from the world transform. This can be useful to perform processing using
|
|
* the applied transform after the world transform has been modified directly (eg, by a constraint).
|
|
* <p>
|
|
* Some information is ambiguous in the world transform, such as -1,-1 scale versus 180 rotation. */
|
|
updateAppliedTransform () {
|
|
this.appliedValid = true;
|
|
let parent = this.parent;
|
|
if (parent == null) {
|
|
this.ax = this.worldX;
|
|
this.ay = this.worldY;
|
|
this.arotation = Math.atan2(this.c, this.a) * MathUtils.radDeg;
|
|
this.ascaleX = Math.sqrt(this.a * this.a + this.c * this.c);
|
|
this.ascaleY = Math.sqrt(this.b * this.b + this.d * this.d);
|
|
this.ashearX = 0;
|
|
this.ashearY = Math.atan2(this.a * this.b + this.c * this.d, this.a * this.d - this.b * this.c) * MathUtils.radDeg;
|
|
return;
|
|
}
|
|
let pa = parent.a, pb = parent.b, pc = parent.c, pd = parent.d;
|
|
let pid = 1 / (pa * pd - pb * pc);
|
|
let dx = this.worldX - parent.worldX, dy = this.worldY - parent.worldY;
|
|
this.ax = (dx * pd * pid - dy * pb * pid);
|
|
this.ay = (dy * pa * pid - dx * pc * pid);
|
|
let ia = pid * pd;
|
|
let id = pid * pa;
|
|
let ib = pid * pb;
|
|
let ic = pid * pc;
|
|
let ra = ia * this.a - ib * this.c;
|
|
let rb = ia * this.b - ib * this.d;
|
|
let rc = id * this.c - ic * this.a;
|
|
let rd = id * this.d - ic * this.b;
|
|
this.ashearX = 0;
|
|
this.ascaleX = Math.sqrt(ra * ra + rc * rc);
|
|
if (this.ascaleX > 0.0001) {
|
|
let det = ra * rd - rb * rc;
|
|
this.ascaleY = det / this.ascaleX;
|
|
this.ashearY = Math.atan2(ra * rb + rc * rd, det) * MathUtils.radDeg;
|
|
this.arotation = Math.atan2(rc, ra) * MathUtils.radDeg;
|
|
} else {
|
|
this.ascaleX = 0;
|
|
this.ascaleY = Math.sqrt(rb * rb + rd * rd);
|
|
this.ashearY = 0;
|
|
this.arotation = 90 - Math.atan2(rd, rb) * MathUtils.radDeg;
|
|
}
|
|
}
|
|
|
|
worldToLocal (world: Vector2) {
|
|
let a = this.a, b = this.b, c = this.c, d = this.d;
|
|
let invDet = 1 / (a * d - b * c);
|
|
let x = world.x - this.worldX, y = world.y - this.worldY;
|
|
world.x = (x * d * invDet - y * b * invDet);
|
|
world.y = (y * a * invDet - x * c * invDet);
|
|
return world;
|
|
}
|
|
|
|
localToWorld (local: Vector2) {
|
|
let x = local.x, y = local.y;
|
|
local.x = x * this.a + y * this.b + this.worldX;
|
|
local.y = x * this.c + y * this.d + this.worldY;
|
|
return local;
|
|
}
|
|
|
|
worldToLocalRotation (worldRotation: number) {
|
|
let sin = MathUtils.sinDeg(worldRotation), cos = MathUtils.cosDeg(worldRotation);
|
|
return Math.atan2(this.a * sin - this.c * cos, this.d * cos - this.b * sin) * MathUtils.radDeg;
|
|
}
|
|
|
|
localToWorldRotation (localRotation: number) {
|
|
let sin = MathUtils.sinDeg(localRotation), cos = MathUtils.cosDeg(localRotation);
|
|
return Math.atan2(cos * this.c + sin * this.d, cos * this.a + sin * this.b) * MathUtils.radDeg;
|
|
}
|
|
|
|
rotateWorld (degrees: number) {
|
|
let a = this.a, b = this.b, c = this.c, d = this.d;
|
|
let cos = MathUtils.cosDeg(degrees), sin = MathUtils.sinDeg(degrees);
|
|
this.a = cos * a - sin * c;
|
|
this.b = cos * b - sin * d;
|
|
this.c = sin * a + cos * c;
|
|
this.d = sin * b + cos * d;
|
|
this.appliedValid = false;
|
|
}
|
|
}
|
|
}
|