Improved particles and stuff for 4.4-beta1

addons/TrailRenderer/Runtime/GD/trail_piece.gd

@@ -25,6 +25,7 @@ func _init(source_trail_renderer: TrailRenderer) -> void:
 
 
 func process(delta: float) -> void:
+	if not is_instance_valid(_line_renderer) or not is_instance_valid(_trail_renderer): return
 	_line_renderer.copy_values(_trail_renderer)
 	_time = Time.get_ticks_msec() / 1000.0
 

addons/TrailRenderer/Runtime/GD/trail_renderer.gd

@@ -24,9 +24,9 @@ func _process(delta: float) -> void:
 	if _trail_pieces.size() > 0:
 		_trail_pieces[0].on_delete_complete = _on_delete_complete
 
-	for i: int in range(_trail_pieces.size()):
-		var trail_piece: TrailPiece = _trail_pieces[i]
-		trail_piece.process(delta)
+	for trail_piece in _trail_pieces:
+		if is_instance_valid(trail_piece) and not trail_piece.is_queued_for_deletion():
+			trail_piece.process(delta)
 
 
 func _on_delete_complete() -> void:

addons/aacc/materials/particles/hit/sparks_process.tres

@@ -9,8 +9,8 @@ curve = SubResource("Curve_avug2")
 
 [resource]
 particle_flag_align_y = true
-direction = Vector3(0, 1, -1)
-spread = 30.0
-initial_velocity_min = 5.0
-initial_velocity_max = 10.0
+direction = Vector3(0, 0, 0)
+spread = 180.0
+initial_velocity_min = 2.5
+initial_velocity_max = 5.0
 alpha_curve = SubResource("CurveTexture_iglnt")

addons/aacc/materials/particles/hit/sparks_render.tres

@@ -4,7 +4,7 @@
 
 [sub_resource type="GradientTexture2D" id="GradientTexture2D_a2o35"]
 gradient = SubResource("Gradient_235fs")
-fill_from = Vector2(0, 1)
+fill_from = Vector2(0, 0.5)
 fill_to = Vector2(0, 0)
 
 [resource]

addons/aacc/scenes/burnout_particles.tscn

@@ -16,7 +16,7 @@ material_override = ExtResource("4_r6cyj")
 cast_shadow = 0
 gi_mode = 0
 emitting = false
-amount = 50
+amount = 250
 lifetime = 2.0
 fixed_fps = 0
 visibility_aabb = AABB(-100, -50, -100, 200, 100, 200)

addons/aacc/scenes/sparks.tscn

@@ -11,7 +11,7 @@ one_shot = true
 explosiveness = 1.0
 fixed_fps = 0
 trail_enabled = true
-trail_lifetime = 0.1
+trail_lifetime = 0.2
 process_material = ExtResource("1_5lk4l")
 draw_pass_1 = ExtResource("2_jdqw7")
 script = ExtResource("3_smau7")

addons/aacc/scripts/audio/car_tire_screech_sound.gd

@@ -6,9 +6,9 @@ class_name CarTireScreechSound extends AudioStreamPlayer3D
 var smooth_burnout_amount = SmoothedFloat.new(0.0, 4.0, 4.0)
 
 func _physics_process(delta: float) -> void:
-	smooth_burnout_amount.advance_to(car.burnout_amount, delta)
+	smooth_burnout_amount.advance_to(clamp(car.burnout_amount * 10.0, 0.0, 1.0), delta)
 	pitch_scale = lerp(pitch_range.x, pitch_range.y, smooth_burnout_amount.get_current_value())
-	volume_db = linear_to_db(car.burnout_amount)
+	volume_db = linear_to_db(clamp(car.burnout_amount * 10.0, 0.0, 1.0))
 
 	if is_inf(volume_db) or car.freeze:
 		volume_db = -80.0

addons/aacc/scripts/car.gd

@@ -336,12 +336,12 @@ func get_side_grip_force() -> float:
 
 func update_burnout_amount():
 	var burnout_colliding: float = 1.0 if ground_coefficient > 0.0 else 0.0
-	var burnout_velocity: float = (abs(local_linear_velocity.x) - 0.5) / 10.0
+	var burnout_velocity: float = (abs(local_linear_velocity.x) - 0.5) / 100.0
 	var burnout_revs: float = 0.0
 	if input_handbrake and linear_velocity.length() >= 0.25:
-		burnout_revs = linear_velocity.length() / 10.0
+		burnout_revs = linear_velocity.length() / 100.0
 	if abs(local_linear_velocity.z) < 0.25:
-		burnout_revs = revs.get_current_value()
+		burnout_revs = revs.get_current_value() / 10.0
 
 	burnout_amount = clamp(burnout_colliding * (burnout_velocity + burnout_revs), 0.0, 1.0)
 #endregion

addons/aacc/scripts/car_wheel.gd

@@ -170,7 +170,6 @@ func update_burnout() -> void:
 
 	var burnout_amount: float = car.burnout_amount
 	if car.local_linear_velocity.length() < 0.25:
-		burnout_amount /= 5.0
 		if (freeze_on_handbrake and car.input_handbrake) or block_wheelspin:
 			burnout_amount = 0.0
 

addons/aacc/scripts/hit_reaction.gd

@@ -40,13 +40,11 @@ func spawn_particle(i: int, state: PhysicsDirectBodyState3D, scratch_amount: flo
 	var sparks_instance: GPUParticles3D = sparks.instantiate()
 	sparks_instance.amount_ratio = scratch_amount
 	add_child(sparks_instance)
-	sparks_instance.global_position = state.get_contact_local_position(i)
+	sparks_instance.global_position = state.get_contact_local_position(i) + (Vector3(randf(), randf(), randf()) * randf_range(-0.25, 0.25))
 	if not Vector3.UP.cross(state.get_contact_local_normal(i)).is_zero_approx():
-		sparks_instance.global_basis = Basis.looking_at(state.get_contact_local_normal(i))
+		sparks_instance.global_basis = Basis.looking_at(state.get_contact_local_normal(i), Vector3.UP.rotated(state.get_contact_local_normal(i), randf_range(0.0, deg_to_rad(360.0))))
 	else:
-		# Since the initial velocity direction is (0.0, 1.0, -1.0), this makes the sparks face up
-		sparks_instance.global_basis = Basis.from_euler(Vector3(deg_to_rad(45.0), 0.0, 0.0))
-
+		sparks_instance.global_basis = Basis.from_euler(Vector3(0.0, randf_range(0.0, deg_to_rad(360.0)), 0.0))
 
 func _ready() -> void:
 	get_node("..").body_entered.connect(play_hit_sound)

addons/aacc/scripts/particles/sparks.gd

@@ -2,7 +2,5 @@ extends GPUParticles3D
 
 func _ready() -> void:
 	emitting = true
-
-func _physics_process(delta: float) -> void:
-	if not emitting:
-		queue_free()
+	await get_tree().create_timer(1.0).timeout
+	queue_free()