diff --git a/src/aabb.rs b/src/aabb.rs
index 65e783f..4421eef 100644
--- a/src/aabb.rs
+++ b/src/aabb.rs
@@ -13,6 +13,9 @@ impl Default for Aabb {
 }
 
 impl Aabb{
+	pub fn new(min:Planar64Vec3,max:Planar64Vec3)->Self{
+		Self{min,max}
+	}
 	pub fn grow(&mut self,point:Planar64Vec3){
 		self.min=self.min.min(point);
 		self.max=self.max.max(point);
@@ -43,4 +46,4 @@ impl Aabb{
 	// 	let d=self.max-self.min;
 	// 	d.x*d.y*d.z
 	// }
-}
\ No newline at end of file
+}
diff --git a/src/gameplay_modes.rs b/src/gameplay_modes.rs
index e9ea2ca..872646e 100644
--- a/src/gameplay_modes.rs
+++ b/src/gameplay_modes.rs
@@ -71,7 +71,22 @@ pub struct Stage{
 	unordered_checkpoints:HashSet<ModelId>,
 }
 impl Stage{
-	pub fn new(spawn:ModelId)->Self{
+	pub fn new(
+		spawn:ModelId,
+		ordered_checkpoints_count:u32,
+		unordered_checkpoints_count:u32,
+		ordered_checkpoints:HashMap<CheckpointId,ModelId>,
+		unordered_checkpoints:HashSet<ModelId>,
+	)->Self{
+		Self{
+			spawn,
+			ordered_checkpoints_count,
+			unordered_checkpoints_count,
+			ordered_checkpoints,
+			unordered_checkpoints,
+		}
+	}
+	pub fn empty(spawn:ModelId)->Self{
 		Self{
 			spawn,
 			ordered_checkpoints_count:0,
@@ -136,7 +151,22 @@ pub struct Mode{
 	elements:HashMap<ModelId,StageElement>,
 }
 impl Mode{
-	pub fn new(style:gameplay_style::StyleModifiers,start:ModelId)->Self{
+	pub fn new(
+		style:gameplay_style::StyleModifiers,
+		start:ModelId,
+		zones:HashMap<ModelId,Zone>,
+		stages:Vec<Stage>,
+		elements:HashMap<ModelId,StageElement>,
+	)->Self{
+		Self{
+			style,
+			start,
+			zones,
+			stages,
+			elements,
+		}
+	}
+	pub fn empty(style:gameplay_style::StyleModifiers,start:ModelId)->Self{
 		Self{
 			style,
 			start,
@@ -269,4 +299,4 @@ impl Updatable<ModesUpdate> for Modes{
 			}
 		}
 	}
-}
\ No newline at end of file
+}
diff --git a/src/gameplay_style.rs b/src/gameplay_style.rs
index 944eab4..d7c826e 100644
--- a/src/gameplay_style.rs
+++ b/src/gameplay_style.rs
@@ -15,7 +15,7 @@ pub struct StyleModifiers{
 	pub rocket:Option<PropulsionSettings>,
 	//flying
 	//pub move_type:MoveType::Fly(FlySettings)
-	//MoveType::Physics(PhysicsSettings) -> PhysicsSettings includes gravity
+	//MoveType::Physics(PhysicsSettings) -> PhysicsSettings (strafe,rocket,jump,walk,ladder,swim,gravity)
 	//jumping is allowed
 	pub jump:Option<JumpSettings>,
 	//standing & walking is allowed
@@ -168,6 +168,14 @@ pub struct StrafeSettings{
 	tick_rate:Ratio64,
 }
 impl StrafeSettings{
+	pub fn new(
+		enable:ControlsActivation,
+		mv:Planar64,
+		air_accel_limit:Option<Planar64>,
+		tick_rate:Ratio64,
+	)->Self{
+		Self{enable,mv,air_accel_limit,tick_rate}
+	}
 	pub fn tick_velocity(&self,velocity:Planar64Vec3,control_dir:Planar64Vec3)->Option<Planar64Vec3>{
 		let d=velocity.dot(control_dir);
 		match d<self.mv{
@@ -191,6 +199,9 @@ pub struct PropulsionSettings{
 	magnitude:Planar64,
 }
 impl PropulsionSettings{
+	pub fn new(magnitude:Planar64)->Self{
+		Self{magnitude}
+	}
 	pub fn acceleration(&self,control_dir:Planar64Vec3)->Planar64Vec3{
 		control_dir*self.magnitude
 	}
@@ -204,6 +215,12 @@ pub struct JumpSettings{
 	calculation:JumpCalculation,
 }
 impl JumpSettings{
+	pub fn new(
+		impulse:JumpImpulse,
+		calculation:JumpCalculation,
+	)->Self{
+		Self{impulse,calculation}
+	}
 	pub fn jumped_velocity(&self,style:&StyleModifiers,jump_dir:Planar64Vec3,velocity:Planar64Vec3)->Planar64Vec3{
 		match self.calculation{
 			//roblox style
@@ -221,6 +238,14 @@ pub struct AccelerateSettings{
 	accel:Planar64,
 	topspeed:Planar64,
 }
+impl AccelerateSettings{
+	pub fn new(
+		accel:Planar64,
+		topspeed:Planar64,
+	)->Self{
+		Self{accel,topspeed}
+	}
+}
 #[derive(Clone,Debug)]
 pub struct WalkSettings{
 	accelerate:AccelerateSettings,
@@ -230,6 +255,14 @@ pub struct WalkSettings{
 	surf_dot:Planar64,//surf_dot<n.dot(up)/n.length()
 }
 impl WalkSettings{
+	pub fn new(
+		accelerate:AccelerateSettings,
+		static_friction:Planar64,
+		kinetic_friction:Planar64,
+		surf_dot:Planar64,
+	)->Self{
+		Self{accelerate,static_friction,kinetic_friction,surf_dot}
+	}
 	pub fn accel(&self,target_diff:Planar64Vec3,gravity:Planar64Vec3)->Planar64{
 		//TODO: fallible walk accel
 		let diff_len=target_diff.length();
@@ -275,6 +308,12 @@ pub struct LadderSettings{
 	dot:Planar64,
 }
 impl LadderSettings{
+	pub fn new(
+		accelerate:AccelerateSettings,
+		dot:Planar64,
+	)->Self{
+		Self{accelerate,dot}
+	}
 	pub fn accel(&self,target_diff:Planar64Vec3,gravity:Planar64Vec3)->Planar64{
 		//TODO: fallible ladder accel
 		self.accelerate.accel
diff --git a/src/integer.rs b/src/integer.rs
index 9d44cce..35153e2 100644
--- a/src/integer.rs
+++ b/src/integer.rs
@@ -10,6 +10,10 @@ impl Time{
 	pub const ONE_MICROSECOND:Self=Self(1_000);
 	pub const ONE_NANOSECOND:Self=Self(1);
 	#[inline]
+	pub const fn raw(num:i64)->Self{
+		Self(num)
+	}
+	#[inline]
 	pub const fn from_secs(num:i64)->Self{
 		Self(Self::ONE_SECOND.0*num)
 	}
@@ -1046,4 +1050,4 @@ fn test_sqrt(){
 	assert_eq!(1717986918400,r.get());
 	let s=r.sqrt();
 	assert_eq!(85899345920,s.get());
-}
\ No newline at end of file
+}