invalid states unrepresentable

src/load_roblox.rs

@@ -97,8 +97,8 @@ fn get_attributes(name:&str,can_collide:bool,velocity:Planar64Vec3,force_interse
 		true=>{
 			match name{
 				"Bounce"=>contacting.elasticity=Some(u32::MAX),
-				"Surf"=>contacting.surf=Some(crate::model::ContactingSurf{}),
-				"Ladder"=>contacting.ladder=Some(crate::model::ContactingLadder{sticky:true}),
+				"Surf"=>contacting.contact_behaviour=Some(crate::model::ContactingBehaviour::Surf),
+				"Ladder"=>contacting.contact_behaviour=Some(crate::model::ContactingBehaviour::Ladder(crate::model::ContactingLadder{sticky:true})),
 				other=>{
 					if let Some(captures)=lazy_regex::regex!(r"^(Jump|WormholeIn)(\d+)$")
 					.captures(other){

src/model.rs

@@ -92,11 +92,14 @@ pub enum TempIndexedAttributes{
 
 //you have this effect while in contact
 #[derive(Clone)]
-pub struct ContactingSurf{}
-#[derive(Clone)]
 pub struct ContactingLadder{
 	pub sticky:bool
 }
+#[derive(Clone)]
+pub enum ContactingBehaviour{
+    Surf,
+    Ladder(ContactingLadder),
+}
 //you have this effect while intersecting
 #[derive(Clone)]
 pub struct IntersectingWater{
@@ -175,8 +178,7 @@ pub struct GameMechanicAttributes{
 pub struct ContactingAttributes{
 	pub elasticity:Option<u32>,//[1/2^32,1] 0=None (elasticity+1)/2^32
 	//friction?
-	pub surf:Option<ContactingSurf>,
-	pub ladder:Option<ContactingLadder>,
+	pub contact_behaviour:Option<ContactingBehaviour>,
 }
 #[derive(Default,Clone)]
 pub struct IntersectingAttributes{

src/physics.rs

@@ -1165,8 +1165,8 @@ impl crate::instruction::InstructionConsumer<PhysicsInstruction> for PhysicsStat
 				let model=c.model(&self.models).unwrap();
 				match &model.attributes{
 					PhysicsCollisionAttributes::Contact{contacting,general}=>{
-						match &contacting.surf{
-							Some(surf)=>println!("I'm surfing!"),
+						match &contacting.contact_behaviour{
+							Some(crate::model::ContactingBehaviour::Surf)=>println!("I'm surfing!"),
 							None=>match &c.face {
 								TreyMeshFace::Top => {
 									//ground