From 5838d811503bb57893c76242c628bcb9f37a6f93 Mon Sep 17 00:00:00 2001
From: Darren Eberly <darren.eberly@proton.me>
Date: Tue, 20 May 2025 10:16:47 -0400
Subject: [PATCH 1/3] Add method for updating a sprite's hitbox in pymunk

---
 arcade/pymunk_physics_engine.py | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arcade/pymunk_physics_engine.py b/arcade/pymunk_physics_engine.py
index 7e966d5724..1db44cecd3 100644
--- a/arcade/pymunk_physics_engine.py
+++ b/arcade/pymunk_physics_engine.py
@@ -600,6 +600,31 @@ def _f4(arbiter, space, data):
         if separate_handler:
             h.separate = _f4
 
+    def update_sprite(self, sprite: Sprite) -> None:
+        """
+        Updates a Sprite's Shape to match it's current hitbox
+
+        Args:
+            sprite: The Sprite to update
+        """
+        physics_object = self.sprites[sprite]
+        old_shape = physics_object.shape
+        assert old_shape is not None, "Tried to update the shape for a Sprite which does not currently have a shape"
+
+        # Set the physics shape to the sprite's hitbox
+        poly = sprite.hit_box.points
+        scaled_poly = [[x * sprite.scale_x for x in z] for z in poly]
+        shape = pymunk.Poly(physics_object.body, scaled_poly, radius=old_shape.radius)  # type: ignore
+
+        shape.collision_type = old_shape.collision_type
+        shape.elasticity = old_shape.elasticity
+        shape.friction = old_shape.friction
+
+        self.space.remove(old_shape)
+        self.space.add(shape)
+        physics_object.shape = shape
+
+
     def resync_sprites(self) -> None:
         """
         Set visual sprites to be the same location as physics engine sprites.

From 8f4c7a1d331d8f5e3932a59040af7bae3b1031d6 Mon Sep 17 00:00:00 2001
From: Darren Eberly <darren.eberly@proton.me>
Date: Tue, 20 May 2025 11:08:12 -0400
Subject: [PATCH 2/3] Formatting

---
 arcade/pymunk_physics_engine.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arcade/pymunk_physics_engine.py b/arcade/pymunk_physics_engine.py
index 1db44cecd3..49ad237f07 100644
--- a/arcade/pymunk_physics_engine.py
+++ b/arcade/pymunk_physics_engine.py
@@ -609,7 +609,9 @@ def update_sprite(self, sprite: Sprite) -> None:
         """
         physics_object = self.sprites[sprite]
         old_shape = physics_object.shape
-        assert old_shape is not None, "Tried to update the shape for a Sprite which does not currently have a shape"
+        assert old_shape is not None, """
+        Tried to update the shape for a Sprite which does not currently have a shape
+        """
 
         # Set the physics shape to the sprite's hitbox
         poly = sprite.hit_box.points

From 75d18bcf80ded20d4247a6f127e7a98dd5d3efce Mon Sep 17 00:00:00 2001
From: Darren Eberly <darren.eberly@proton.me>
Date: Tue, 20 May 2025 11:15:36 -0400
Subject: [PATCH 3/3] formatting

---
 arcade/pymunk_physics_engine.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arcade/pymunk_physics_engine.py b/arcade/pymunk_physics_engine.py
index 49ad237f07..04e0e721d4 100644
--- a/arcade/pymunk_physics_engine.py
+++ b/arcade/pymunk_physics_engine.py
@@ -626,7 +626,6 @@ def update_sprite(self, sprite: Sprite) -> None:
         self.space.add(shape)
         physics_object.shape = shape
 
-
     def resync_sprites(self) -> None:
         """
         Set visual sprites to be the same location as physics engine sprites.