added green attack, enemy

scenes/env_particles.tscn

@@ -0,0 +1,37 @@
+[gd_scene format=3 uid="uid://bfuksmq20k8sa"]
+
+[ext_resource type="Texture2D" uid="uid://dd1us1nw7uqkh" path="res://assets/vfx/leafs.png" id="1_b522c"]
+[ext_resource type="Script" uid="uid://cakh44cbphr4s" path="res://scripts/screen_particles.gd" id="2_elx8x"]
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_fma68"]
+atlas = ExtResource("1_b522c")
+region = Rect2(0, 0, 8, 8)
+
+[sub_resource type="ParticleProcessMaterial" id="ParticleProcessMaterial_h77w7"]
+particle_flag_disable_z = true
+emission_shape = 3
+emission_box_extents = Vector3(1000, 16.01, 0)
+angle_min = -279.5
+angle_max = 313.40002
+direction = Vector3(0, 1, 0)
+spread = 15.0
+initial_velocity_min = 61.85
+initial_velocity_max = 247.43
+angular_velocity_min = -177.88
+angular_velocity_max = 177.87997
+gravity = Vector3(-200, 300, 0)
+turbulence_enabled = true
+turbulence_noise_strength = 0.1
+turbulence_noise_scale = 4.253
+turbulence_noise_speed_random = 0.32
+
+[node name="EnvParticles" type="GPUParticles2D" unique_id=786365479]
+modulate = Color(0.75430965, 0.9297428, 1.0795158, 1)
+amount = 512
+texture = SubResource("AtlasTexture_fma68")
+lifetime = 20.0
+preprocess = 3.0
+fixed_fps = 0
+draw_order = 0
+process_material = SubResource("ParticleProcessMaterial_h77w7")
+script = ExtResource("2_elx8x")