Allow dead bodies to hit the ground

Use physics layers instead of disabling physics; otherwise dead bodies might float in the sky if the Fighter was standing on top of another one.

Assets/Scripts/Fighters/Fighter.cs

@@ -26,6 +26,7 @@ public abstract class Fighter : MonoBehaviour, IRoundCallback
     protected new Rigidbody2D rigidbody;
     protected new BoxCollider2D collider;
     protected SpriteRenderer spriteRenderer;
+    protected HealthBarController healthBarController;
     protected bool alive { get => currentHealth > 0; }
     protected bool roundRunning = false;
     protected FighterTypes fighterType;
@@ -33,8 +34,8 @@ public abstract class Fighter : MonoBehaviour, IRoundCallback
 
     protected Vector3 initalScale;
     protected Vector3 initalPosition;
+    protected int initialLayer;
     protected Sprite initialSprite;
-    protected HealthBarController healthBarController;
 
     protected abstract bool CanAttack();
     protected abstract void Attack();
@@ -50,9 +51,10 @@ public abstract class Fighter : MonoBehaviour, IRoundCallback
         healthBarController = GetComponentInChildren<HealthBarController>();
 
         fighterType = FighterTypes.ENEMY;
-        
+
         initalPosition = transform.position;
         initalScale = transform.localScale;
+        initialLayer = gameObject.layer;
         initialSprite = spriteRenderer.sprite;
     }
 
@@ -101,10 +103,8 @@ public abstract class Fighter : MonoBehaviour, IRoundCallback
         {
             animator.SetTrigger("Death");
             callbacks.ForEach(c => c.OnFighterDeath(this));
-            // Disable own collider so that other Fighters can run over our dead body
-            collider.enabled = false;
-            // Let's not fall through the world, without any active colliders
-            rigidbody.bodyType = RigidbodyType2D.Static;
+            // Disable own collision so that other Fighters can run over our dead body
+            gameObject.layer = LayerMask.NameToLayer("Ground-Only Collision");
             healthBarController.SetHealthBarEnabled(false);
         }
         else
@@ -152,6 +152,7 @@ public abstract class Fighter : MonoBehaviour, IRoundCallback
         rigidbody.velocity = Vector2.zero;
         rigidbody.MovePosition(initalPosition);
         transform.localScale = initalScale;
+        gameObject.layer = initialLayer;
         spriteRenderer.sprite = initialSprite;
         callbacks.Clear();
         healthBarController.SetHealthBarEnabled(false);

ProjectSettings/Physics2DSettings.asset

@@ -53,4 +53,4 @@ Physics2DSettings:
   m_ColliderAsleepColor: {r: 0.5686275, g: 0.95686275, b: 0.54509807, a: 0.36078432}
   m_ColliderContactColor: {r: 1, g: 0, b: 1, a: 0.6862745}
   m_ColliderAABBColor: {r: 1, g: 1, b: 0, a: 0.2509804}
-  m_LayerCollisionMatrix: fffbeffffffbeffffffbeffffffffffffffbeffffffbeffffffffffffffffffffffdfffffffeefffc8ffefffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc8f9ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
+  m_LayerCollisionMatrix: fffbeffffffaeffffffaeffffffffffffffaeffffffaefffffffffffffffffffc9f8effffffeefffc8feefffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc8f8ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff

ProjectSettings/TagManager.asset

@@ -17,7 +17,7 @@ TagManager:
   - UI
   - 
   - 
-  - Ground Sensor
+  - Ground-Only Collision
   - Fighter
   - Weapon
   -