Improve crab attack telegraphing

Also, make the Armadillo explosions smaller and therefore closer to the
visual explosion, but this should've been in the last commit already.

Assets/Prefabs/Enemies/Enemy (Armadillo).prefab

@@ -159,7 +159,9 @@ MonoBehaviour:
   - {fileID: 3847767376140256459, guid: ef8e91f8ee034b54187172730881ede2, type: 3}
   - {fileID: 3847767376140256459, guid: 18cee0d8962f9124cbe00dcb3e6a009b, type: 3}
   DebugExplode: 0
-  KillOnZeroHealth: 1
+  ParticlesPerBodypart: 70
+  BodypartCountMultiplier: 1
+  DebrisType: 0
 --- !u!114 &3362493323285318061
 MonoBehaviour:
   m_ObjectHideFlags: 0
@@ -220,7 +222,7 @@ MonoBehaviour:
   CurrentStatus: 
   StartExplodingRadius: 3.5
   ExplodeOnImpactRadius: 1.5
-  ExplosionRadius: 2.5
+  ExplosionRadius: 1.5
   FuseDuration: 1.5
   MinDamage: 7
   MaxDamage: 13

Assets/Scripts/AI/Behaviours/MeleeAttackFollowed.cs

@@ -45,19 +45,17 @@ namespace Saltosion.OneWeapon.AI.Behaviours {
                 CurrentStatus = "Cooldown";
                 CooldownProgress -= Time.deltaTime / CooldownLength;
             }
+            Attacking = CooldownProgress < 0.4f && Follow.Target != null &&
+                (Follow.Target.position - Enemy.transform.position).magnitude <= MeleeRange * 2f;
         }
 
         public override bool CanBehave() {
             bool CanBehave = Follow.Target != null && (Follow.Target.position - Enemy.transform.position).magnitude <= MeleeRange;
-            if (!CanBehave) {
-                Attacking = false;
-            }
             return CanBehave;
         }
 
         public override void Execute() {
             if (CooldownProgress > 0) {
-                Attacking = false;
                 return;
             } else {
                 Attacking = true;