chore,gd: refactored project structure and started the mantle system

player_controller/Scripts/CapsuleCollider.cs

@@ -0,0 +1,56 @@
+using Godot;
+
+namespace PolarBears.PlayerControllerAddon;
+
+public partial class CapsuleCollider : CollisionShape3D
+{
+    [Export(PropertyHint.Range, "0,5.0,0.01,suffix:m,or_greater")]
+    public float CapsuleDefaultHeight { get; set; } = 2.0f;
+    [Export(PropertyHint.Range, "0,5.0,0.01,suffix:m,or_greater")]
+    public float CapsuleCrouchHeight  { get; set; } = 1.0f;
+
+    public float GetCurrentHeight() { return _shape.Height; }
+    public float GetDefaultHeight() { return CapsuleDefaultHeight; }
+
+    private CapsuleShape3D _shape;
+
+    public override void _Ready()
+    {
+        _shape = Shape as CapsuleShape3D;
+        _shape.Height = CapsuleDefaultHeight;
+    }
+
+    public bool IsCapsuleHeightLessThanNormal()
+    {
+        return _shape.Height < CapsuleDefaultHeight;
+    }
+
+    public bool IsBetweenCrouchingAndNormalHeight()
+    {
+        return _shape.Height > CapsuleCrouchHeight && _shape.Height < CapsuleDefaultHeight;
+    }
+
+    public bool IsDefaultHeight()
+    {
+        return Mathf.IsEqualApprox(_shape.Height,  CapsuleDefaultHeight);
+    }
+
+    public bool IsCrouchingHeight()
+    {
+        return Mathf.IsEqualApprox(_shape.Height, CapsuleCrouchHeight);
+    }
+
+    public void Crouch(float delta, float crouchTransitionSpeed)
+    {
+        _shape.Height -= delta * crouchTransitionSpeed;
+        
+        _shape.Height = Mathf.Clamp(_shape.Height, CapsuleCrouchHeight, CapsuleDefaultHeight);
+    }
+
+    public void UndoCrouching(float delta, float crouchTransitionSpeed)
+    {
+        _shape.Height += delta * crouchTransitionSpeed;
+        
+        _shape.Height = Mathf.Clamp(_shape.Height, CapsuleCrouchHeight, CapsuleDefaultHeight);
+    }
+}