skid particles + extra particles setting

Scripts/Classes/Entities/Items/Coin.gd

@@ -19,7 +19,7 @@ func collect() -> void:
 	DiscoLevel.combo_meter += 10
 	Global.score += 200
 	AudioManager.play_sfx("coin", global_position)
-	if can_spawn_particles:
+	if can_spawn_particles and Settings.file.visuals.extra_particles == 1:
 		summon_particle()
 		$Sprite.queue_free()
 	else:

Scripts/Classes/Entities/Items/RedCoin.gd

@@ -25,16 +25,14 @@ func collected() -> void:
 		ChallengeModeHandler.red_coins += 1
 	Global.score += 200
 	ChallengeModeHandler.set_value(id, true)
-	if can_spawn_particles:
+	if can_spawn_particles and Settings.file.visuals.extra_particles == 1:
 		summon_particle()
-		$Sprite.queue_free()
-	else:
-		queue_free()
+	queue_free()
 
 func summon_particle() -> void:
 	var node = COIN_SPARKLE.instantiate()
-	node.finished.connect(queue_free)
-	add_child(node)
+	node.global_position = global_position
+	add_sibling(node)
 
 func summon_bounced_coin() -> void:
 	var node = SPINNING_RED_COIN.instantiate()

Scripts/Classes/Entities/Items/SpinningCoin.gd

@@ -17,7 +17,7 @@ func _physics_process(delta: float) -> void:
 		velocity.y += (15 / delta) * delta
 
 func vanish() -> void:
-	if can_spawn_particles:
+	if can_spawn_particles and Settings.file.visuals.extra_particles == 1:
 		summon_particle()
 		$Sprite.queue_free()
 	else:

Scripts/Classes/Entities/Items/SpinningRedCoin.gd

@@ -28,14 +28,12 @@ func _physics_process(delta: float) -> void:
 	velocity.y += (15 / delta) * delta
 
 func vanish() -> void:
-	if can_spawn_particles:
-		$Sprite.queue_free()
+	if can_spawn_particles and Settings.file.visuals.extra_particles == 1:
 		summon_particle()
-	else:
-		queue_free()
+	queue_free()
 
 func summon_particle() -> void:
 	var node = COIN_SPARKLE.instantiate()
 	node.finished.connect(queue_free)
-	node.global_position = global_position
+	node.global_position = $Sprite.global_position
 	add_sibling(node)

Scripts/Classes/Entities/Player.gd

@@ -23,6 +23,8 @@ var RUN_SPEED := 160.0                 # The player's speed while running, measu
 var GROUND_RUN_ACCEL := 1.25           # The player's acceleration while running, measured in px/frame
 var RUN_SKID := 8.0                    # The player's turning deceleration while running, measured in px/frame
 
+var SKID_THRESHOLD := 100.0            # The horizontal speed required, to be able to start skidding.
+
 var DECEL := 3.0                       # The player's deceleration while no buttons are pressed, measured in px/frame
 var AIR_ACCEL := 3.0                   # The player's acceleration while in midair, measured in px/frame
 var AIR_SKID := 1.5                    # The player's turning deceleration while in midair, measured in px/frame
@@ -182,6 +184,8 @@ static var classic_physics := false
 
 var swim_stroke := false
 
+var skid_frames := 0
+
 var simulated_velocity := Vector2.ZERO
 
 func _ready() -> void:
@@ -208,6 +212,7 @@ func _ready() -> void:
 		camera.enabled = false
 	handle_power_up_states(0)
 	set_power_state_frame()
+	handle_invincible_palette()
 	if Global.level_editor == null:
 		recenter_camera()
 
@@ -280,6 +285,8 @@ func _physics_process(delta: float) -> void:
 	elif velocity.y > 15:
 		can_bump_sfx = true
 	handle_water_detection()
+	%SkidParticles.visible = Settings.file.visuals.extra_particles == 1
+	%SkidParticles.emitting = ((skidding and skid_frames > 2) or crouching) and is_on_floor() and abs(velocity.x) > 25 and Settings.file.visuals.extra_particles == 1
 	if $SkidSFX.playing:
 		if (is_actually_on_floor() and skidding) == false:
 			$SkidSFX.stop()
@@ -716,6 +723,7 @@ func power_up_animation(new_power_state := "") -> void:
 				sprite.sprite_frames = old_frames
 				await get_tree().create_timer(0.05).timeout
 		else:
+			handle_invincible_palette()
 			sprite.stop()
 			sprite.material.set_shader_parameter("enabled", true)
 			transforming = true

Scripts/Classes/Singletons/SettingsManager.gd

@@ -68,7 +68,8 @@ var file := {
 		"visible_timers": 0,
 		"transition_animation": 0,
 		"colour_pipes": 1,
-		"firebar_style": 0
+		"firebar_style": 0,
+		"extra_particles": 0
 	},
 	"difficulty":
 	{

Scripts/Classes/States/Player/Normal.gd

@@ -84,7 +84,7 @@ func grounded(delta: float) -> void:
 func handle_ground_movement(delta: float) -> void:
 	if player.skidding:
 		ground_skid(delta)
-	elif (player.input_direction != player.velocity_direction) and player.input_direction != 0 and abs(player.velocity.x) > 100 and not player.crouching:
+	elif (player.input_direction != player.velocity_direction) and player.input_direction != 0 and abs(player.velocity.x) > player.SKID_THRESHOLD and not player.crouching:
 		print([player.input_direction, player.velocity_direction])
 		player.skidding = true
 	elif player.input_direction != 0 and not player.crouching:
@@ -112,9 +112,11 @@ func deceleration(delta: float) -> void:
 
 func ground_skid(delta: float) -> void:
 	var target_skid := player.RUN_SKID
+	player.skid_frames += 1
 	player.velocity.x = move_toward(player.velocity.x, 1 * player.input_direction, (target_skid / delta) * delta)
 	if abs(player.velocity.x) < 10 or player.input_direction == player.velocity_direction or player.input_direction == 0:
 		player.skidding = false
+		player.skid_frames = 0
 
 func in_air() -> void:
 	if Global.player_action_just_pressed("jump", player.player_id):