From b5d1aea3c5bf17192e5470c7249060454eab8f54 Mon Sep 17 00:00:00 2001
From: Harald Csaszar <harald.csaszar@pixelcloudgames.com>
Date: Thu, 18 Jan 2024 18:39:54 +0100
Subject: [PATCH] [csharp] Port of commit 2563c7c. Added physics methods to
 apply translation and rotation forces.

---
 spine-csharp/src/PhysicsConstraint.cs | 22 ++++++++++++++++++++++
 spine-csharp/src/Skeleton.cs          | 18 ++++++++++++++++++
 spine-csharp/src/package.json         |  2 +-
 3 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/spine-csharp/src/PhysicsConstraint.cs b/spine-csharp/src/PhysicsConstraint.cs
index ec9f44dbb..7419b5a1a 100644
--- a/spine-csharp/src/PhysicsConstraint.cs
+++ b/spine-csharp/src/PhysicsConstraint.cs
@@ -110,6 +110,28 @@ namespace Spine {
 			mix = data.mix;
 		}
 
+		/// <summary>
+		/// Translates the physics constraint so next <see cref="Update(Physics)"/> forces are applied as if the bone moved an additional
+		/// amount in world space.
+		/// </summary>
+		public void Translate (float x, float y) {
+			ux -= x;
+			uy -= y;
+			cx -= x;
+			cy -= y;
+		}
+
+		/// <summary>
+		/// Rotates the physics constraint so next <see cref="Update(Physics)"/> forces are applied as if the bone rotated an additional
+		/// amount in world space.
+		/// </summary>
+		public void Rotate (float degrees) {
+			float r = degrees * MathUtils.DegRad, cos = (float)Math.Cos(r), sin = (float)Math.Sin(r);
+			r = tx * cos - ty * sin;
+			ty = tx * sin + ty * cos;
+			tx = r;
+		}
+
 		/// <summary>Applies the constraint to the constrained bones.</summary>
 		public void Update (Physics physics) {
 			float mix = this.mix;
diff --git a/spine-csharp/src/Skeleton.cs b/spine-csharp/src/Skeleton.cs
index a9e3e18a6..3a84e6ca2 100644
--- a/spine-csharp/src/Skeleton.cs
+++ b/spine-csharp/src/Skeleton.cs
@@ -474,6 +474,24 @@ namespace Spine {
 			}
 		}
 
+		/// <summary>
+		/// Calls <see cref="PhysicsConstraint.Translate(float, float)"/> for each physics constraint.
+		/// </summary>
+		public void PhysicsTranslate (float x, float y) {
+			PhysicsConstraint[] physicsConstraints = this.physicsConstraints.Items;
+			for (int i = 0, n = this.physicsConstraints.Count; i < n; i++)
+				physicsConstraints[i].Translate(x, y);
+		}
+
+		/// <summary>
+		/// Calls <see cref="PhysicsConstraint.Rotate(float)"/> for each physics constraint.
+		/// </summary>
+		public void PhysicsRotate (float degrees) {
+			PhysicsConstraint[] physicsConstraints = this.physicsConstraints.Items;
+			for (int i = 0, n = this.physicsConstraints.Count; i < n; i++)
+				physicsConstraints[i].Rotate(degrees);
+		}
+
 		/// <summary>Increments the skeleton's <see cref="time"/>.</summary>
 		public void Update (float delta) {
 			time += delta;
diff --git a/spine-csharp/src/package.json b/spine-csharp/src/package.json
index 593dbbf90..37e4cba16 100644
--- a/spine-csharp/src/package.json
+++ b/spine-csharp/src/package.json
@@ -2,7 +2,7 @@
 	"name": "com.esotericsoftware.spine.spine-csharp",
 	"displayName": "spine-csharp Runtime",
 	"description": "This plugin provides the spine-csharp core runtime.",
-	"version": "4.2.9",
+	"version": "4.2.10",
 	"unity": "2018.3",
 	"author": {
 		"name": "Esoteric Software",