added green attack, enemy

scenes/portal.tscn

@@ -0,0 +1,43 @@
+[gd_scene format=3 uid="uid://u72uxgovmbhd"]
+
+[ext_resource type="Shader" uid="uid://bnnclls153x2j" path="res://shaders/selective_glow.gdshader" id="1_ckw30"]
+[ext_resource type="Texture2D" uid="uid://db3a6q3o787qh" path="res://assets/enviroment/portal.png" id="2_4pvrx"]
+[ext_resource type="Script" uid="uid://cioob0euvug4e" path="res://scripts/portal.gd" id="3_i0ytf"]
+[ext_resource type="Script" uid="uid://pyblew2m6xc3" path="res://scripts/magic_circle.gd" id="4_frqps"]
+[ext_resource type="Script" uid="uid://c0wn3w7q2j470" path="res://scripts/proximity.gd" id="5_5yude"]
+[ext_resource type="Theme" uid="uid://d3iyu7ukwsn1p" path="res://ui/default_theme.tres" id="6_e5sgc"]
+
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_xfvwf"]
+shader = ExtResource("1_ckw30")
+shader_parameter/replace = Color(0.49803922, 0.5529412, 0.9490196, 1)
+shader_parameter/intensity = 0.0
+
+[node name="Portal" type="Sprite2D" unique_id=1512558284]
+material = SubResource("ShaderMaterial_xfvwf")
+texture = ExtResource("2_4pvrx")
+script = ExtResource("3_i0ytf")
+
+[node name="MagicCircle" type="Node2D" parent="." unique_id=235520935]
+position = Vector2(3, 7)
+scale = Vector2(1, 0.5)
+script = ExtResource("4_frqps")
+base_rad = 3.135
+layer_rad_inc = 1.925
+layers = 9
+main_color = Color(0.7254902, 0.8352941, 1, 1)
+fixed_seed = 1231
+squish = 0.5
+line_width = 1.0
+metadata/_custom_type_script = "uid://pyblew2m6xc3"
+
+[node name="Text" type="Node2D" parent="." unique_id=821025739]
+script = ExtResource("5_5yude")
+show_range = 100
+
+[node name="Label" type="Label" parent="Text" unique_id=773740984]
+offset_left = -57.0
+offset_top = -52.0
+offset_right = 104.0
+offset_bottom = -29.0
+theme = ExtResource("6_e5sgc")
+text = "Press E to continue..."