Add Godot project, update README

Co-authored by: Henrique Campos <[email protected]>

README.md

@@ -1,10 +1,14 @@
 # Godot Visual Effects
 
-⚠ This repository is a work-in-progress. To know when its content is available, [follow us on Twitter](https://twitter.com/NathanGDQuest)
-
 ![project banner](./img/banner-vfx-secrets.png)
 
-This project is a Free and Open-Source set of polished visual effects from our course [Godot VFX Secrets](). They are available under the permissive MIT license
+Godot Visual Effects is a Free and Open-Source set of polished visual effects from our course **Godot VFX Secrets**.
+
+ℹ Follow us on [Twitter](https://twitter.com/NathanGDQuest) and [YouTube](https://www.youtube.com/c/gdquest/) for free game creation tutorials, tips, and news. You can support our work on Free Software by [getting one of our courses](https://gdquest.mavenseed.com/).
+
+![Laser effect](./img/laser.png)
+
+ℹ The course isn't out yet. To know when it's available, you can [subscribe via email](https://gdquest.mavenseed.com/p/follow).
 
 This hands-on tutorial series will teach you essential techniques to design effects such as explosions, ghost trails behind the player as in Castlevania games, lasers, background animation, and more.
 
@@ -16,3 +20,25 @@ All available effects are currently 2D-only.
 - Laser beam
 - Ghost trail or after image
 - Star field
+- Trail that follows the character
+
+![Trail effect](./img/trail.png)
+
+## How to use
+
+Download the Godot project. Each effect is in a self-contained directory with all its dependencies.
+
+To add an effect to your own project, copy its directory to the root of your project, and move it from Godot's _FileSystem_ tab. That's it!
+
+![Explosion effect](./img/explosion_1.png)
+
+## Contributing
+
+Contributors are welcome!
+
+If you encounter a bug, please [open an issue](https://github.com/GDQuest/godot-game-harvester/issues/new).
+
+If you want to contribute to the project, for instance by fixing a bug or adding a feature, check out our:
+
+1. [Contributor guidelines](https://www.gdquest.com/docs/guidelines/contributing-to/gdquest-projects/).
+1. [GDScript style guide](https://www.gdquest.com/docs/guidelines/best-practices/godot-gdscript/)

godot/Explosion/Explosion.tscn

@@ -0,0 +1,314 @@
+[gd_scene load_steps=23 format=2]
+
+[ext_resource path="res://assets/sparkle.png" type="Texture" id=1]
+[ext_resource path="res://Explosion/explosion_gradient.tres" type="Texture" id=2]
+[ext_resource path="res://assets/puff.png" type="Texture" id=3]
+[ext_resource path="res://assets/puff_smooth.png" type="Texture" id=5]
+[ext_resource path="res://Explosion/scraps_gradient.tres" type="Texture" id=6]
+
+[sub_resource type="Gradient" id=1]
+offsets = PoolRealArray( 0.0494297, 0.913043, 1 )
+colors = PoolColorArray( 0.226562, 0.217086, 0.217086, 1, 0.133333, 0.12549, 0.12549, 1, 0.133333, 0.12549, 0.12549, 0 )
+
+[sub_resource type="GradientTexture" id=2]
+gradient = SubResource( 1 )
+
+[sub_resource type="Curve" id=3]
+_data = [ Vector2( 0, 0.290223 ), 0.0, 3.6562, 0, 0, Vector2( 0.682482, 1 ), -0.0677277, -0.0677277, 0, 0, Vector2( 1, 0.554545 ), -0.29932, 0.0, 0, 0 ]
+
+[sub_resource type="CurveTexture" id=4]
+curve = SubResource( 3 )
+
+[sub_resource type="ParticlesMaterial" id=5]
+emission_shape = 1
+emission_sphere_radius = 40.0
+flag_disable_z = true
+spread = 180.0
+gravity = Vector3( 0, 0, 0 )
+initial_velocity = 80.0
+initial_velocity_random = 0.6
+angular_velocity = 40.0
+orbit_velocity = 0.0
+orbit_velocity_random = 0.0
+damping = 40.0
+damping_random = 0.5
+angle = 360.0
+angle_random = 1.0
+scale = 2.6
+scale_random = 0.5
+scale_curve = SubResource( 4 )
+color_ramp = SubResource( 2 )
+
+[sub_resource type="Curve" id=6]
+_data = [ Vector2( 0, 0.377273 ), 0.0, 2.60769, 0, 0, Vector2( 0.761062, 0.986364 ), 0.0, 0.0, 0, 0, Vector2( 1, 0.322727 ), -0.564845, 0.0, 0, 0 ]
+
+[sub_resource type="CurveTexture" id=7]
+curve = SubResource( 6 )
+
+[sub_resource type="ParticlesMaterial" id=8]
+trail_divisor = 50
+emission_shape = 1
+emission_sphere_radius = 15.0
+flag_disable_z = true
+spread = 180.0
+gravity = Vector3( 0, 0, 0 )
+initial_velocity = 1000.0
+initial_velocity_random = 0.4
+orbit_velocity = 0.3
+orbit_velocity_random = 1.0
+tangential_accel = 1000.0
+tangential_accel_random = 1.0
+damping = 1500.0
+scale = 0.2
+scale_random = 0.2
+scale_curve = SubResource( 7 )
+color_ramp = ExtResource( 6 )
+
+[sub_resource type="Curve" id=9]
+_data = [ Vector2( 0, 0.0409091 ), 0.0, 8.35303, 0, 0, Vector2( 0.251678, 1 ), 0.0, 0.0, 0, 0, Vector2( 0.993289, 0.0136364 ), 0.0, 0.0, 0, 0 ]
+
+[sub_resource type="CurveTexture" id=10]
+curve = SubResource( 9 )
+
+[sub_resource type="ParticlesMaterial" id=11]
+flag_disable_z = true
+spread = 180.0
+gravity = Vector3( 0, 0, 0 )
+initial_velocity = 350.0
+initial_velocity_random = 0.5
+angular_velocity = 80.0
+angular_velocity_random = 0.8
+orbit_velocity = 0.0
+orbit_velocity_random = 0.0
+damping = 100.0
+damping_random = 0.85
+angle = 220.0
+angle_random = 1.0
+scale = 2.0
+scale_random = 0.2
+scale_curve = SubResource( 10 )
+color_ramp = ExtResource( 2 )
+
+[sub_resource type="Gradient" id=12]
+offsets = PoolRealArray( 0, 0.130909, 0.345455, 0.607273, 1 )
+colors = PoolColorArray( 1, 1, 1, 1, 1, 0.648972, 0.164062, 1, 1, 0.475624, 0.136719, 1, 0.888672, 0.17704, 0.17704, 1, 0.203922, 0.203922, 0.203922, 1 )
+
+[sub_resource type="GradientTexture" id=13]
+gradient = SubResource( 12 )
+
+[sub_resource type="Curve" id=14]
+_data = [ Vector2( 0, 0 ), 0.0, 0.0, 0, 0, Vector2( 0.483222, 1 ), 0.0, 0.0, 0, 0, Vector2( 1, 0 ), 0.0, 0.0, 0, 0 ]
+
+[sub_resource type="CurveTexture" id=15]
+curve = SubResource( 14 )
+
+[sub_resource type="ParticlesMaterial" id=16]
+lifetime_randomness = 0.6
+emission_shape = 1
+emission_sphere_radius = 50.0
+flag_disable_z = true
+spread = 180.0
+gravity = Vector3( 0, 0, 0 )
+orbit_velocity = 0.0
+orbit_velocity_random = 0.0
+radial_accel = 200.0
+radial_accel_random = 0.3
+tangential_accel = 100.0
+scale = 0.1
+scale_random = 0.3
+scale_curve = SubResource( 15 )
+color_ramp = SubResource( 13 )
+
+[sub_resource type="Animation" id=17]
+length = 3.0
+step = 0.05
+tracks/0/type = "value"
+tracks/0/path = NodePath("FireBurstParticles2D:emitting")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/keys = {
+"times": PoolRealArray( 0, 0.5 ),
+"transitions": PoolRealArray( 1, 1 ),
+"update": 1,
+"values": [ true, false ]
+}
+tracks/1/type = "value"
+tracks/1/path = NodePath("SparkleParticles2D:emitting")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/keys = {
+"times": PoolRealArray( 0, 0.5 ),
+"transitions": PoolRealArray( 1, 1 ),
+"update": 1,
+"values": [ true, false ]
+}
+tracks/2/type = "value"
+tracks/2/path = NodePath("SmokeParticles2D:emitting")
+tracks/2/interp = 1
+tracks/2/loop_wrap = true
+tracks/2/imported = false
+tracks/2/enabled = true
+tracks/2/keys = {
+"times": PoolRealArray( 0, 0.5 ),
+"transitions": PoolRealArray( 1, 1 ),
+"update": 1,
+"values": [ true, false ]
+}
+tracks/3/type = "value"
+tracks/3/path = NodePath("FireTrails/FireTrailParticles2D5:emitting")
+tracks/3/interp = 1
+tracks/3/loop_wrap = true
+tracks/3/imported = false
+tracks/3/enabled = true
+tracks/3/keys = {
+"times": PoolRealArray( 0, 0.5 ),
+"transitions": PoolRealArray( 1, 1 ),
+"update": 1,
+"values": [ true, false ]
+}
+tracks/4/type = "value"
+tracks/4/path = NodePath("FireTrails/FireTrailParticles2D4:emitting")
+tracks/4/interp = 1
+tracks/4/loop_wrap = true
+tracks/4/imported = false
+tracks/4/enabled = true
+tracks/4/keys = {
+"times": PoolRealArray( 0.05, 0.55 ),
+"transitions": PoolRealArray( 1, 1 ),
+"update": 1,
+"values": [ true, false ]
+}
+tracks/5/type = "value"
+tracks/5/path = NodePath("FireTrails/FireTrailParticles2D3:emitting")
+tracks/5/interp = 1
+tracks/5/loop_wrap = true
+tracks/5/imported = false
+tracks/5/enabled = true
+tracks/5/keys = {
+"times": PoolRealArray( 0.1, 0.6 ),
+"transitions": PoolRealArray( 1, 1 ),
+"update": 1,
+"values": [ true, false ]
+}
+tracks/6/type = "value"
+tracks/6/path = NodePath("FireTrails/FireTrailParticles2D2:emitting")
+tracks/6/interp = 1
+tracks/6/loop_wrap = true
+tracks/6/imported = false
+tracks/6/enabled = true
+tracks/6/keys = {
+"times": PoolRealArray( 0.15, 0.65 ),
+"transitions": PoolRealArray( 1, 1 ),
+"update": 1,
+"values": [ true, false ]
+}
+tracks/7/type = "value"
+tracks/7/path = NodePath("FireTrails/FireTrailParticles2D:emitting")
+tracks/7/interp = 1
+tracks/7/loop_wrap = true
+tracks/7/imported = false
+tracks/7/enabled = true
+tracks/7/keys = {
+"times": PoolRealArray( 0, 0.5 ),
+"transitions": PoolRealArray( 1, 1 ),
+"update": 1,
+"values": [ true, false ]
+}
+
+[node name="Explosion" type="Node2D"]
+z_index = 1
+z_as_relative = false
+
+[node name="SmokeParticles2D" type="Particles2D" parent="."]
+emitting = false
+amount = 16
+lifetime = 3.0
+preprocess = 0.6
+explosiveness = 0.6
+local_coords = false
+process_material = SubResource( 5 )
+texture = ExtResource( 3 )
+
+[node name="FireTrails" type="Node2D" parent="."]
+
+[node name="FireTrailParticles2D" type="Particles2D" parent="FireTrails"]
+modulate = Color( 1.2, 1.2, 1.2, 1 )
+emitting = false
+amount = 50
+lifetime = 0.5
+randomness = 0.5
+local_coords = false
+process_material = SubResource( 8 )
+texture = ExtResource( 5 )
+
+[node name="FireTrailParticles2D2" type="Particles2D" parent="FireTrails"]
+modulate = Color( 1.2, 1.2, 1.2, 1 )
+emitting = false
+amount = 50
+lifetime = 0.5
+randomness = 0.5
+local_coords = false
+draw_order = 1
+process_material = SubResource( 8 )
+texture = ExtResource( 5 )
+
+[node name="FireTrailParticles2D3" type="Particles2D" parent="FireTrails"]
+modulate = Color( 1.2, 1.2, 1.2, 1 )
+emitting = false
+amount = 50
+lifetime = 0.5
+randomness = 0.5
+local_coords = false
+draw_order = 1
+process_material = SubResource( 8 )
+texture = ExtResource( 5 )
+
+[node name="FireTrailParticles2D4" type="Particles2D" parent="FireTrails"]
+modulate = Color( 1.2, 1.2, 1.2, 1 )
+emitting = false
+amount = 50
+lifetime = 0.5
+randomness = 0.5
+local_coords = false
+draw_order = 1
+process_material = SubResource( 8 )
+texture = ExtResource( 5 )
+
+[node name="FireTrailParticles2D5" type="Particles2D" parent="FireTrails"]
+modulate = Color( 1.2, 1.2, 1.2, 1 )
+emitting = false
+amount = 50
+lifetime = 0.5
+randomness = 0.5
+local_coords = false
+draw_order = 1
+process_material = SubResource( 8 )
+texture = ExtResource( 5 )
+
+[node name="FireBurstParticles2D" type="Particles2D" parent="."]
+modulate = Color( 1.2, 1.2, 1.2, 1 )
+emitting = false
+amount = 64
+lifetime = 0.5
+explosiveness = 0.3
+randomness = 1.0
+local_coords = false
+draw_order = 1
+process_material = SubResource( 11 )
+texture = ExtResource( 3 )
+
+[node name="SparkleParticles2D" type="Particles2D" parent="."]
+modulate = Color( 1.2, 1.2, 1.2, 1 )
+emitting = false
+amount = 32
+explosiveness = 0.2
+randomness = 1.0
+process_material = SubResource( 16 )
+texture = ExtResource( 1 )
+
+[node name="AnimationPlayer" type="AnimationPlayer" parent="."]
+anims/Explode = SubResource( 17 )