My first 2D game in Godot 4.4

smoke_explosion/circle_32.png.import

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+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://cvmbm3sxj85fm"
+path="res://.godot/imported/circle_32.png-ff53eadac5c62484a55afe7e47d5145f.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://smoke_explosion/circle_32.png"
+dest_files=["res://.godot/imported/circle_32.png-ff53eadac5c62484a55afe7e47d5145f.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

smoke_explosion/smoke_explosion.gd

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+extends Node2D
+
+
+func _ready():
+	%Smoke.material.set_shader_parameter("texture_offset", Vector2(randfn(0.0, 1.0), randfn(0.0, 1.0)))
+	%AnimationPlayer.play("explosion")
+	await %AnimationPlayer.animation_finished
+	queue_free()

smoke_explosion/smoke_explosion.gd.uid

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+uid://qrh44gblhgir

smoke_explosion/smoke_explosion.gdshader

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+shader_type canvas_item;
+
+uniform sampler2D voronoi_sampler : repeat_enable;
+uniform sampler2D edge_curve;
+uniform float offset = 0.0;
+uniform vec2 texture_offset = vec2(0.0);
+uniform sampler2D color_gradient : source_color;
+
+void fragment() {
+	float voronoi = 1.0 - texture(voronoi_sampler, UV * 0.25 + texture_offset).x;
+	float d = distance(UV, vec2(0.5)) * 2.0;
+	float n_smooth_d = (voronoi * offset) * texture(edge_curve, vec2(d, 0.0)).x;
+	COLOR.a *= step(0.5, n_smooth_d);
+	COLOR.rgb = texture(color_gradient, vec2(n_smooth_d, 0.0)).rgb;
+}

smoke_explosion/smoke_explosion.gdshader.uid

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+uid://dnum4fa7v8hu

smoke_explosion/smoke_explosion.tscn

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+[gd_scene load_steps=13 format=3 uid="uid://dhmhmrth6rdce"]
+
+[ext_resource type="Shader" uid="uid://dnum4fa7v8hu" path="res://smoke_explosion/smoke_explosion.gdshader" id="1_bmef6"]
+[ext_resource type="Script" uid="uid://qrh44gblhgir" path="res://smoke_explosion/smoke_explosion.gd" id="1_kb8ql"]
+
+[sub_resource type="Gradient" id="Gradient_obal6"]
+interpolation_mode = 1
+offsets = PackedFloat32Array(0.105691, 0.7)
+colors = PackedColorArray(0.878431, 0.878431, 0.878431, 1, 0.878431, 0.878431, 0.878431, 1)
+
+[sub_resource type="GradientTexture1D" id="GradientTexture1D_mxd0d"]
+gradient = SubResource("Gradient_obal6")
+
+[sub_resource type="Curve" id="Curve_aov55"]
+_data = [Vector2(0.752381, 1), 0.0, -4.03846, 0, 1, Vector2(1, 0), -4.03846, 0.0, 1, 0]
+point_count = 2
+
+[sub_resource type="CurveTexture" id="CurveTexture_p664q"]
+texture_mode = 1
+curve = SubResource("Curve_aov55")
+
+[sub_resource type="FastNoiseLite" id="FastNoiseLite_ti4n0"]
+noise_type = 2
+fractal_octaves = 1
+
+[sub_resource type="NoiseTexture2D" id="NoiseTexture2D_uji5e"]
+seamless = true
+noise = SubResource("FastNoiseLite_ti4n0")
+
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_dssfe"]
+resource_local_to_scene = true
+shader = ExtResource("1_bmef6")
+shader_parameter/voronoi_sampler = SubResource("NoiseTexture2D_uji5e")
+shader_parameter/edge_curve = SubResource("CurveTexture_p664q")
+shader_parameter/offset = 2.0
+shader_parameter/texture_offset = Vector2(0, 0)
+shader_parameter/color_gradient = SubResource("GradientTexture1D_mxd0d")
+
+[sub_resource type="Animation" id="Animation_6fv2e"]
+length = 0.001
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("Smoke:material:shader_parameter/offset")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 0,
+"values": [2.0]
+}
+tracks/1/type = "value"
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/path = NodePath("Smoke:scale")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 0,
+"values": [Vector2(1, 1)]
+}
+tracks/2/type = "value"
+tracks/2/imported = false
+tracks/2/enabled = true
+tracks/2/path = NodePath("Smoke:modulate")
+tracks/2/interp = 1
+tracks/2/loop_wrap = true
+tracks/2/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 0,
+"values": [Color(0.396078, 0.396078, 0.396078, 1)]
+}
+
+[sub_resource type="Animation" id="Animation_viyco"]
+resource_name = "explosion"
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("Smoke:material:shader_parameter/offset")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0, 0.6),
+"transitions": PackedFloat32Array(1, 1),
+"update": 0,
+"values": [2.0, 0.0]
+}
+tracks/1/type = "value"
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/path = NodePath("Smoke:scale")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/keys = {
+"times": PackedFloat32Array(0, 0.6),
+"transitions": PackedFloat32Array(1, 1),
+"update": 0,
+"values": [Vector2(1, 1), Vector2(3, 3)]
+}
+tracks/2/type = "value"
+tracks/2/imported = false
+tracks/2/enabled = true
+tracks/2/path = NodePath("Smoke:modulate:a")
+tracks/2/interp = 1
+tracks/2/loop_wrap = true
+tracks/2/keys = {
+"times": PackedFloat32Array(0.1, 0.6),
+"transitions": PackedFloat32Array(1, 1),
+"update": 0,
+"values": [1.0, 0.0]
+}
+
+[sub_resource type="AnimationLibrary" id="AnimationLibrary_8msef"]
+_data = {
+&"RESET": SubResource("Animation_6fv2e"),
+&"explosion": SubResource("Animation_viyco")
+}
+
+[node name="SmokeExplosion" type="Node2D"]
+z_index = 10
+script = ExtResource("1_kb8ql")
+
+[node name="Smoke" type="ColorRect" parent="."]
+unique_name_in_owner = true
+modulate = Color(0.396078, 0.396078, 0.396078, 1)
+material = SubResource("ShaderMaterial_dssfe")
+anchors_preset = 8
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+offset_left = -64.0
+offset_top = -64.0
+offset_right = 64.0
+offset_bottom = 64.0
+grow_horizontal = 2
+grow_vertical = 2
+pivot_offset = Vector2(64, 64)
+color = Color(0.568627, 0.568627, 0.568627, 1)
+
+[node name="AnimationPlayer" type="AnimationPlayer" parent="."]
+unique_name_in_owner = true
+autoplay = "RESET"
+libraries = {
+"": SubResource("AnimationLibrary_8msef")
+}