2.17 introducing particles

scenes/characters/Player.cs

@@ -10,12 +10,19 @@ public partial class Player : RigidBody3D
     private Vector3 ZLeft;
     private Vector3 ZRight;
 
+    private GpuParticles3D boosterParticles;
+    private GpuParticles3D boosterLeftParticles;
+    private GpuParticles3D boosterRightParticles;
+
     private AudioStreamPlayer deathAudioPlayer;
     private AudioStreamPlayer successAudioPlayer;
     private AudioStreamPlayer3D rocketAudioPlayer;
 
     public override void _Ready()
     {
+        boosterParticles = GetNode<GpuParticles3D>("BoosterParticles");
+        boosterLeftParticles = GetNode<GpuParticles3D>("BoosterLeftParticles");
+        boosterRightParticles = GetNode<GpuParticles3D>("BoosterRightParticles");
         deathAudioPlayer = GetNode<AudioStreamPlayer>("DeathAudioPlayer");
         successAudioPlayer = GetNode<AudioStreamPlayer>("SuccessAudioPlayer");
         rocketAudioPlayer = GetNode<AudioStreamPlayer3D>("RocketAudioPlayer");
@@ -28,17 +35,25 @@ public partial class Player : RigidBody3D
         float fd = (float)delta;
         if (Input.IsActionPressed("boost")){
             ApplyCentralForce(Basis.Y * fd * thrust);
+            boosterParticles.Emitting = true;
             if (!rocketAudioPlayer.Playing){
                 rocketAudioPlayer.Play();
             }
         } else {
             rocketAudioPlayer.Stop();
+            boosterParticles.Emitting = false;
         }
         if (Input.IsActionPressed("rotate_left")){
             ApplyTorque(ZLeft * fd);
+            boosterLeftParticles.Emitting = true;
+        } else {
+            boosterLeftParticles.Emitting = false;
         }
         if (Input.IsActionPressed("rotate_right")){
             ApplyTorque(ZRight * fd);
+            boosterRightParticles.Emitting = true;
+        } else {
+            boosterRightParticles.Emitting = false;
         }
     }
 
@@ -58,6 +73,7 @@ public partial class Player : RigidBody3D
     private void CrashSequence(){
         deathAudioPlayer.Play();
         rocketAudioPlayer.Stop();
+        boosterParticles.Emitting = false;
         Tween tween = CreateTween();
         tween.TweenInterval(2.5);
         tween.TweenCallback(Callable.From(() => DeferredCalls.ReloadCurrentScene(this)));

scenes/characters/booster_particles.tscn

@@ -0,0 +1,36 @@
+[gd_scene load_steps=6 format=3 uid="uid://ux6ivcx1ovdp"]
+
+[sub_resource type="Curve" id="Curve_w7ove"]
+_data = [Vector2(0, 1), 0.0, 1.40451, 0, 0, Vector2(1, 0), -2.21649, 0.0, 0, 0]
+point_count = 2
+
+[sub_resource type="CurveTexture" id="CurveTexture_0capg"]
+curve = SubResource("Curve_w7ove")
+
+[sub_resource type="ParticleProcessMaterial" id="ParticleProcessMaterial_fgg2i"]
+direction = Vector3(0, -1, 0)
+spread = 15.0
+initial_velocity_min = 2.0
+initial_velocity_max = 4.0
+gravity = Vector3(0, 0, 0)
+damping_min = 9.0
+damping_max = 9.0
+scale_curve = SubResource("CurveTexture_0capg")
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_6pwbh"]
+emission_enabled = true
+emission = Color(1, 1, 1, 1)
+emission_energy_multiplier = 2.0
+
+[sub_resource type="SphereMesh" id="SphereMesh_atjxn"]
+material = SubResource("StandardMaterial3D_6pwbh")
+radius = 0.1
+height = 0.2
+radial_segments = 32
+rings = 16
+
+[node name="BoosterParticles" type="GPUParticles3D"]
+amount = 32
+lifetime = 0.5
+process_material = SubResource("ParticleProcessMaterial_fgg2i")
+draw_pass_1 = SubResource("SphereMesh_atjxn")

scenes/characters/player.tscn

@@ -1,9 +1,10 @@
-[gd_scene load_steps=7 format=3 uid="uid://cuduv6fwqtocs"]
+[gd_scene load_steps=8 format=3 uid="uid://cuduv6fwqtocs"]
 
 [ext_resource type="Script" path="res://scenes/characters/Player.cs" id="1_fr1bo"]
 [ext_resource type="AudioStream" uid="uid://nsq05kpsix83" path="res://resources/audio/SFX - Death Explosion.ogg" id="2_ml1je"]
 [ext_resource type="AudioStream" uid="uid://cr4ckjeqxa5xe" path="res://resources/audio/SFX - Success.ogg" id="3_xmihe"]
 [ext_resource type="AudioStream" uid="uid://dyf7x2qy7lww" path="res://resources/audio/SFX - Main engine thrust.ogg" id="4_204bm"]
+[ext_resource type="PackedScene" uid="uid://ux6ivcx1ovdp" path="res://scenes/characters/booster_particles.tscn" id="5_q1ic3"]
 
 [sub_resource type="CylinderMesh" id="CylinderMesh_dk8lw"]
 
@@ -33,3 +34,15 @@ stream = ExtResource("3_xmihe")
 
 [node name="RocketAudioPlayer" type="AudioStreamPlayer3D" parent="."]
 stream = ExtResource("4_204bm")
+
+[node name="BoosterParticles" parent="." instance=ExtResource("5_q1ic3")]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, -1, 0)
+emitting = false
+
+[node name="BoosterLeftParticles" parent="." instance=ExtResource("5_q1ic3")]
+transform = Transform3D(1, 0, 0, 0, 0.939693, -0.34202, 0, 0.34202, 0.939693, 0, -1, -0.4)
+emitting = false
+
+[node name="BoosterRightParticles" parent="." instance=ExtResource("5_q1ic3")]
+transform = Transform3D(1, 0, 0, 0, 0.939693, 0.34202, 0, -0.34202, 0.939693, 0, -1, 0.4)
+emitting = false