improve projectile trail and player attack

scenes/entities/projectiles/projectile.tscn

@@ -2,10 +2,10 @@
 
 [ext_resource type="Script" uid="uid://bbd22tc1scoom" path="res://scripts/entities/projectiles/projectile.gd" id="1_kv6x5"]
 [ext_resource type="PackedScene" uid="uid://c8gqrealje3o" path="res://scenes/effects/shadow_decal.tscn" id="3_2dqcj"]
-[ext_resource type="PackedScene" uid="uid://jmtp1qxxnyr2" path="res://scenes/entities/projectiles/projectile_hit_particles.tscn" id="3_a8d2p"]
+[ext_resource type="PackedScene" uid="uid://jmtp1qxxnyr2" path="res://scenes/effects/projectiles/projectile_hit_particles.tscn" id="3_a8d2p"]
 [ext_resource type="PackedScene" uid="uid://bl3flu6un3op1" path="res://assets/models/entities/projectiles/projectile.glb" id="3_oc4rm"]
 [ext_resource type="Material" uid="uid://dnyl326cg2rvh" path="res://resources/materials/projectiles/projectile_mat.tres" id="4_u2n0m"]
-[ext_resource type="PackedScene" uid="uid://biq8bu0rbjfgd" path="res://scenes/entities/projectiles/projectile_destroy_particles.tscn" id="4_wq63x"]
+[ext_resource type="PackedScene" uid="uid://biq8bu0rbjfgd" path="res://scenes/effects/projectiles/projectile_destroy_particles.tscn" id="4_wq63x"]
 [ext_resource type="Material" uid="uid://d3f5sarakjtlg" path="res://resources/materials/projectiles/projectile_glow_mat.tres" id="5_fdcqu"]
 [ext_resource type="Material" uid="uid://btoktsgqj62ei" path="res://resources/materials/projectiles/projectile_trail_mat.tres" id="7_j3t3l"]
 
@@ -32,7 +32,7 @@ material = ExtResource("7_j3t3l")
 size = Vector2(0.4, 0.4)
 orientation = 1
 
-[node name="Projectile" type="Area3D" node_paths=PackedStringArray("_model_base", "_model_mesh")]
+[node name="Projectile" type="Area3D" node_paths=PackedStringArray("_model_base", "_model_mesh", "_trail_particles")]
 collision_layer = 32
 collision_mask = 49
 script = ExtResource("1_kv6x5")
@@ -40,6 +40,7 @@ _hit_particles_scene = ExtResource("3_a8d2p")
 _destroy_particles_scene = ExtResource("4_wq63x")
 _model_base = NodePath("Model")
 _model_mesh = NodePath("Model/ProjectileMesh")
+_trail_particles = NodePath("TrailParticles")
 
 [node name="Model" parent="." instance=ExtResource("3_oc4rm")]
 
@@ -68,6 +69,7 @@ amount = 5
 lifetime = 0.4
 fixed_fps = 60
 interpolate = false
+fract_delta = false
 visibility_aabb = AABB(-0.4, -0.4, -0.4, 0.8, 0.8, 0.8)
 process_material = SubResource("ParticleProcessMaterial_fdcqu")
 draw_pass_1 = SubResource("QuadMesh_fdcqu")

scripts/entities/player/player_attacker.gd

@@ -41,7 +41,6 @@ func _ready() -> void:
 	_set_collision_size(attack_radius)
 
 
-
 func _process(delta: float) -> void:
 	if _cooldown_timer > 0:
 		_cooldown_timer -= delta
@@ -137,6 +136,7 @@ func _hit_projectile(projectile: Projectile) -> void:
 			)
 			projectile.hit(new_direction * _hit_projectile_speed)
 			_queue_hit_stop = true
+			did_hit.emit()
 			break
 
 		prev_dir_angle = dir_angle
@@ -158,4 +158,3 @@ func _on_area_entered(node: Node3D) -> void:
 
 	if node is Projectile:
 		_hit_projectile(node as Projectile)
-		did_hit.emit()

scripts/entities/projectiles/projectile.gd

@@ -8,10 +8,12 @@ const MAX_STRETCH: float = 0.75
 
 @export var _hit_particles_scene: PackedScene
 @export var _destroy_particles_scene: PackedScene
+@export var _velocity_to_trail_rate: float = 0.5
 
 @export_group("References")
 @export var _model_base: Node3D
 @export var _model_mesh: MeshInstance3D
+@export var _trail_particles: GPUParticles3D
 
 var _start_position: Vector3
 var _velocity: Vector3
@@ -39,11 +41,12 @@ func _physics_process(delta: float) -> void:
 	global_position += _velocity * delta
 	look_at(global_position + _velocity, Vector3.UP, true)
 
-	var speed_squash := clampf(
+	var speed := _velocity.length()
-		_velocity.length() / _speed_stretch_factor, 0, MAX_STRETCH
+	var speed_squash := clampf(speed / _speed_stretch_factor, 0, MAX_STRETCH)
-	)
 	_model_base.scale = Vector3(1 - speed_squash, 1 - speed_squash, 1 + speed_squash)
 
+	_trail_particles.amount = int(speed * _velocity_to_trail_rate)
+
 
 func init(velocity: Vector3, start_position: Vector3, lifetime: float = 10) -> void:
 	_velocity = velocity
@@ -71,9 +74,15 @@ func _destroy() -> void:
 	)
 	get_tree().get_root().add_child(destroy_particles)
 	destroy_particles.init(global_position)
+	set_deferred("monitorable", false)
+	set_deferred("monitoring", false)
+	_model_base.visible = false
+	await get_tree().create_timer(5).timeout
 	queue_free()
 
 
+
+
 func _on_body_entered(node: Node3D) -> void:
 	if node is Player:
 		queue_free()