Projectiles cannot stick to walls unless they stick to EVERYTHING (lack of sticktolevelwalls )

[JeroonBosch]

Discussed in #16703

^{Originally posted by ubertpendragon November 17, 2025}

Disclaimers

• I have searched the issue tracker to check if the issue has already been reported.
• My issue happened while using mods.

What happened?

Projectiles can stick to a variety of targets, but due to a lack of sticktolevelwalls property, you can't make a projectile still to a level wall if it has a stick restriction (like sticktodoors="false")
They only stick to levelwalls if you use DoesStick="true", which enables every type of sticking

For example, the railgun harpoon won't stick to level walls (which would be nice to prevent sinking in an emergency)

Barotrauma/Barotrauma/BarotraumaShared/SharedSource/Items/Components/Projectile.cs

Lines 1217 to 1243 in 51db93f

	if (attackResult.AppliedDamageModifiers != null && attackResult.AppliedDamageModifiers.Any(dm => dm.DeflectProjectiles) && !StickToDeflective)
	{
	item.body.LinearVelocity *= deflectedSpeedMultiplier;
	}
	else if ( remainingHits <= 0 &&
	stickJoint == null && StickTarget == null &&
	StickToStructures && target.Body.UserData is Structure ||
	((StickToLightTargets || target.Body.Mass >= GetLightTargetMassThreshold()) &&
	(DoesStick ||
	(StickToCharacters && (target.Body.UserData is Limb || target.Body.UserData is Character)) ||
	(target.Body.UserData is Item i && (i.GetComponent<Door>() != null ? StickToDoors : StickToItems)))))
	{
	Vector2 dir = new Vector2(
	(float)Math.Cos(item.body.Rotation),
	(float)Math.Sin(item.body.Rotation));
	if (GameMain.NetworkMember == null || GameMain.NetworkMember.IsServer)
	{
	if (target.Body.UserData is Structure structure && structure.Submarine != item.Submarine && structure.Submarine != null)
	{
	StickToTarget(structure.Submarine.PhysicsBody.FarseerBody, dir);
	}
	else
	{
	StickToTarget(target.Body, dir);
	}
	}

Reproduction steps

!

Bug prevalence

Just once

Single player or multiplayer?

Single player

-

No response

Version

v1.10.7.2 (Autumn Update 2025 Hotfix 4)

-

No response

Which operating system did you encounter this bug on?

Windows

Relevant error messages and crash reports

No response