two enemy types, ready to refactor

scenes/enemies/flying_enemy.tscn

@@ -0,0 +1,60 @@
+[gd_scene load_steps=7 format=3 uid="uid://cmlud1hwkd6sv"]
+
+[ext_resource type="Script" uid="uid://cmvep0qi7qlvf" path="res://scenes/enemies/FlyingEnemy.cs" id="1_b46rq"]
+
+[sub_resource type="SphereShape3D" id="SphereShape3D_b46rq"]
+
+[sub_resource type="SphereMesh" id="SphereMesh_1bsgx"]
+
+[sub_resource type="SphereMesh" id="SphereMesh_4yfjf"]
+radius = 0.05
+height = 0.1
+radial_segments = 4
+rings = 4
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_4yfjf"]
+albedo_color = Color(0.06469653, 0.06469653, 0.06469653, 1)
+
+[sub_resource type="BoxShape3D" id="BoxShape3D_4yfjf"]
+size = Vector3(1, 1, 1.5)
+
+[node name="FlyingEnemy" type="CharacterBody3D"]
+collision_layer = 16
+collision_mask = 273
+motion_mode = 1
+script = ExtResource("1_b46rq")
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="."]
+shape = SubResource("SphereShape3D_b46rq")
+
+[node name="MeshInstance3D" type="MeshInstance3D" parent="."]
+layers = 33
+mesh = SubResource("SphereMesh_1bsgx")
+
+[node name="MeshInstance3D2" type="MeshInstance3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -0.2, 0, -0.5)
+layers = 33
+cast_shadow = 0
+ignore_occlusion_culling = true
+mesh = SubResource("SphereMesh_4yfjf")
+surface_material_override/0 = SubResource("StandardMaterial3D_4yfjf")
+
+[node name="MeshInstance3D3" type="MeshInstance3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0.2, 0, -0.5)
+layers = 33
+cast_shadow = 0
+ignore_occlusion_culling = true
+mesh = SubResource("SphereMesh_4yfjf")
+surface_material_override/0 = SubResource("StandardMaterial3D_4yfjf")
+
+[node name="GroundDistance" type="RayCast3D" parent="."]
+target_position = Vector3(0, 0, 0)
+collision_mask = 272
+
+[node name="DamageBox" type="Area3D" parent="."]
+collision_layer = 0
+monitorable = false
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="DamageBox"]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, -0.75)
+shape = SubResource("BoxShape3D_4yfjf")