From 8d046cbbf432650eca360e61e662c3275ca1b853 Mon Sep 17 00:00:00 2001
From: Davide Tantillo <iamdjj@gmail.com>
Date: Mon, 16 Jun 2025 09:33:33 +0200
Subject: [PATCH] [ts] 4.3 porting WIP - latest updates.

---
 spine-ts/spine-core/src/PhysicsConstraint.ts | 17 ++++++-----
 spine-ts/spine-core/src/Posed.ts             | 32 ++++++++++++++++++--
 spine-ts/spine-core/src/PosedActive.ts       |  2 +-
 spine-ts/spine-core/src/Skeleton.ts          | 22 +++++---------
 4 files changed, 47 insertions(+), 26 deletions(-)

diff --git a/spine-ts/spine-core/src/PhysicsConstraint.ts b/spine-ts/spine-core/src/PhysicsConstraint.ts
index 52f081bc2..ea3f72bc1 100644
--- a/spine-ts/spine-core/src/PhysicsConstraint.ts
+++ b/spine-ts/spine-core/src/PhysicsConstraint.ts
@@ -139,8 +139,8 @@ export class PhysicsConstraint extends Constraint<PhysicsConstraint, PhysicsCons
 					this.ux = bx;
 					this.uy = by;
 				} else {
-					let a = this.remaining, i = p.inertia, f = skeleton.data.referenceScale, d = -1, m = 0, e = 0, qx = this.data.limit * delta,
-						qy = qx * Math.abs(skeleton.scaleY);
+					let a = this.remaining, i = p.inertia, f = skeleton.data.referenceScale, d = -1, m = 0, e = 0, ax = 0, ay = 0,
+						qx = this.data.limit * delta, qy = qx * Math.abs(skeleton.scaleY);
 					qx *= Math.abs(skeleton.scaleX);
 					if (x || y) {
 						if (x) {
@@ -158,8 +158,9 @@ export class PhysicsConstraint extends Constraint<PhysicsConstraint, PhysicsCons
 							d = Math.pow(p.damping, 60 * t);
 							m = t * p.massInverse;
 							e = p.strength;
-							let w = f * p.wind * skeleton.scaleX, g = f * p.gravity * skeleton.scaleY,
-								ax = w * skeleton.windX + g * skeleton.gravityX, ay = w * skeleton.windY + g * skeleton.gravityY;
+							let w = f * p.wind, g = f * p.gravity;
+							ax = (w * skeleton.windX + g * skeleton.gravityX) * skeleton.scaleX;
+							ay = (w * skeleton.windY + g * skeleton.gravityY) * skeleton.scaleY;
 							do {
 								if (x) {
 									this.xVelocity += (ax - this.xOffset * e) * m;
@@ -214,11 +215,11 @@ export class PhysicsConstraint extends Constraint<PhysicsConstraint, PhysicsCons
 								d = Math.pow(p.damping, 60 * t);
 								m = t * p.massInverse;
 								e = p.strength;
+								const w = f * p.wind, g = f * (Skeleton.yDown ? -p.gravity : p.gravity);
+								ax = (w * skeleton.windX + g * skeleton.gravityX) * skeleton.scaleX;
+								ay = (w * skeleton.windY + g * skeleton.gravityY) * skeleton.scaleY;
 							}
-							var g = Skeleton.yDown ? -p.gravity : p.gravity;
-							let rs = this.rotateOffset, ss = this.scaleOffset, h = l / f,
-								ax = p.wind * skeleton.windX + g * skeleton.gravityX,
-								ay = p.wind * skeleton.windY + g * skeleton.gravityY;
+							let rs = this.rotateOffset, ss = this.scaleOffset, h = l / f
 							while (true) {
 								a -= t;
 								if (scaleX) {
diff --git a/spine-ts/spine-core/src/Posed.ts b/spine-ts/spine-core/src/Posed.ts
index 9d112ac52..ee6d8bc23 100644
--- a/spine-ts/spine-core/src/Posed.ts
+++ b/spine-ts/spine-core/src/Posed.ts
@@ -37,19 +37,45 @@ export abstract class Posed<
 
 	/** The constraint's setup pose data. */
 	readonly data: D;
-	readonly pose: P;
+	readonly pose: A;
 	readonly constrained: A;
 	applied: A;
 
-	constructor (data: D, pose: P, constrained: A) {
+	constructor (data: D, pose: A, constrained: A) {
 		if (data == null) throw new Error("data cannot be null.");
 		this.data = data;
 		this.pose = pose;
 		this.constrained = constrained;
-		this.applied = pose as A;
+		this.applied = pose;
 	}
 
 	public setupPose (): void {
 		this.pose.set(this.data.setup);
 	}
+
+	/** The constraint's setup pose data. */
+	public getData (): D {
+		return this.data;
+	}
+
+	public getPose (): P {
+		return this.pose;
+	}
+
+	public getAppliedPose (): A {
+		return this.applied;
+	}
+
+	usePose () { // Port: usePose - reference runtime:  pose()
+		this.applied = this.pose;
+	}
+
+	useConstrained () { // Port: useConstrained - reference runtime:  constrained()
+		this.applied = this.constrained;
+	}
+
+	resetConstrained () { // Port: resetConstrained - reference runtime:  reset()
+		this.constrained.set(this.pose);
+	}
+
 }
diff --git a/spine-ts/spine-core/src/PosedActive.ts b/spine-ts/spine-core/src/PosedActive.ts
index 7fb891c8c..8d540cce3 100644
--- a/spine-ts/spine-core/src/PosedActive.ts
+++ b/spine-ts/spine-core/src/PosedActive.ts
@@ -41,7 +41,7 @@ export abstract class PosedActive<
 
 	active = false;
 
-	constructor (data: D, pose: P, constrained: A) {
+	constructor (data: D, pose: A, constrained: A) {
 		super(data, pose, constrained);
 		this.setupPose();
 	}
diff --git a/spine-ts/spine-core/src/Skeleton.ts b/spine-ts/spine-core/src/Skeleton.ts
index c9bfe7d3d..09eb3c6a3 100644
--- a/spine-ts/spine-core/src/Skeleton.ts
+++ b/spine-ts/spine-core/src/Skeleton.ts
@@ -165,10 +165,8 @@ export class Skeleton {
 		this.resetCache.length = 0;
 
 		let slots = this.slots;
-		for (let i = 0, n = slots.length; i < n; i++) {
-			const slot = slots[i];
-			slot.applied = slot.pose;
-		}
+		for (let i = 0, n = slots.length; i < n; i++)
+			slots[i].usePose();
 
 		let bones = this.bones;
 		const boneCount = bones.length;
@@ -176,7 +174,7 @@ export class Skeleton {
 			let bone = bones[i];
 			bone.sorted = bone.data.skinRequired;
 			bone.active = !bone.sorted;
-			bone.applied = bone.pose as BonePose;
+			bone.usePose();
 		}
 		if (this.skin) {
 			let skinBones = this.skin.bones;
@@ -192,10 +190,8 @@ export class Skeleton {
 
 		let constraints = this.constraints;
 		let n = this.constraints.length;
-		for (let i = 0; i < n; i++) {
-			const constraint = constraints[i];
-			constraint.applied = constraint.pose;
-		}
+		for (let i = 0; i < n; i++)
+			constraints[i].usePose();
 		for (let i = 0; i < n; i++) {
 			const constraint = constraints[i];
 			constraint.active = constraint.isSourceActive()
@@ -216,7 +212,7 @@ export class Skeleton {
 
 	constrained (object: Posed<any, any, any>) {
 		if (object.pose === object.applied) {
-			object.applied = object.constrained;
+			object.useConstrained();
 			this.resetCache.push(object);
 		}
 	}
@@ -247,10 +243,8 @@ export class Skeleton {
 		this._update++;
 
 		const resetCache = this.resetCache;
-		for (let i = 0, n = this.resetCache.length; i < n; i++) {
-			const object = resetCache[i];
-			object.applied.set(object.pose);
-		}
+		for (let i = 0, n = this.resetCache.length; i < n; i++)
+			resetCache[i].resetConstrained();
 
 		const updateCache = this._updateCache;
 		for (let i = 0, n = this._updateCache.length; i < n; i++)