Started particle system.

Materials/Particles/down_particles.tres

@@ -0,0 +1,10 @@
+[gd_resource type="ParticleProcessMaterial" format=3 uid="uid://ck13qte606w1j"]
+
+[resource]
+particle_flag_disable_z = true
+emission_shape_offset = Vector3(0, -8, 0)
+emission_shape = 1
+emission_sphere_radius = 7.35
+gravity = Vector3(0, -98, 0)
+scale_max = 5.0
+color = Color(0, 0, 0, 1)

Materials/Particles/up_particles.tres

@@ -0,0 +1,10 @@
+[gd_resource type="ParticleProcessMaterial" format=3 uid="uid://c81obsijtfpwq"]
+
+[resource]
+particle_flag_disable_z = true
+emission_shape_offset = Vector3(0, -8, 0)
+emission_shape = 1
+emission_sphere_radius = 7.35
+gravity = Vector3(0, 98, 0)
+scale_max = 2.0
+color = Color(0, 0, 0, 1)

Scenes/player.tscn

@@ -1,7 +1,8 @@
-[gd_scene load_steps=4 format=3 uid="uid://syx6ov00a585"]
+[gd_scene load_steps=5 format=3 uid="uid://syx6ov00a585"]
 
 [ext_resource type="Script" uid="uid://ohb2t6o7wr1u" path="res://Scripts/player.gd" id="1_cvnsp"]
 [ext_resource type="Texture2D" uid="uid://btqnhg54e1p66" path="res://Sprites/png/spritesheet.png" id="2_6t5aa"]
+[ext_resource type="Material" uid="uid://ck13qte606w1j" path="res://Materials/Particles/down_particles.tres" id="2_vgqql"]
 
 [sub_resource type="RectangleShape2D" id="RectangleShape2D_jjgbg"]
 size = Vector2(16, 16)
@@ -9,6 +10,12 @@ size = Vector2(16, 16)
 [node name="Player" type="CharacterBody2D"]
 script = ExtResource("1_cvnsp")
 
+[node name="GPUParticles2D" type="GPUParticles2D" parent="."]
+emitting = false
+amount = 100
+lifetime = 3.3699999999999997
+process_material = ExtResource("2_vgqql")
+
 [node name="Sprite" type="Sprite2D" parent="."]
 texture = ExtResource("2_6t5aa")
 hframes = 2
@@ -16,3 +23,8 @@ vframes = 2
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]
 shape = SubResource("RectangleShape2D_jjgbg")
+
+[node name="VisibleOnScreenNotifier2D" type="VisibleOnScreenNotifier2D" parent="."]
+rect = Rect2(-8, -8, 16, 16)
+
+[connection signal="screen_exited" from="VisibleOnScreenNotifier2D" to="." method="_on_visible_on_screen_notifier_2d_screen_exited"]

Scripts/player.gd

@@ -2,6 +2,7 @@ extends CharacterBody2D
 
 @onready var tile_layer : TileMapLayer = $"../TileMapLayer"
 @onready var level : Node2D = $".."
+@onready var particles : GPUParticles2D = $GPUParticles2D
 
 @export_category("Movement")
 @export var acceleration : float = 50
@@ -16,6 +17,8 @@ func _ready() -> void:
 
 func _physics_process(delta: float) -> void:
 	
+	print(velocity.y)
+	
 	if dead == false:
 		#Horizontal movement.
 		move_input = Input.get_axis("move_left", "move_right")
@@ -29,6 +32,9 @@ func _physics_process(delta: float) -> void:
 		
 		if Input.is_action_just_pressed("flip") and (is_on_floor() or is_on_ceiling()):
 			al_globals.gravity *= -1
+			
+	if velocity.y > 500:
+		particles.emitting = true
 	
 	move_and_slide() #Allow physics control.
 	spike_detection() #Checks for tiles with the "Spike" custom data enabled.
@@ -44,19 +50,19 @@ func spike_detection() -> void:
 	if tile_data:
 		var custom_data = tile_data.get_custom_data("spike")
 		if custom_data == true:
-			death()
-			await get_tree().create_timer(1).timeout
-			respawn()
+			death(false)
 			
-			
-func death() -> void:
+func death(fallen: bool) -> void:
 	dead = true
-	velocity.x = 0
-	velocity.y = 0
-	scale.x = lerp(scale.x, 0.0, 0.1)
-	scale.y = lerp(scale.y, 0.0, 0.1)
+	if !fallen:
+		velocity.x = 0
+		velocity.y = 0
+		scale.x = lerp(scale.x, 0.0, 0.1)
+		scale.y = lerp(scale.y, 0.0, 0.1)
 	if al_globals.gravity < 0:
 		al_globals.gravity *= -1
+	await get_tree().create_timer(1.0).timeout
+	respawn()
 		
 func respawn() -> void:
 	dead = false
@@ -66,3 +72,6 @@ func respawn() -> void:
 	position.y = level.startPosY
 	
 	
+func _on_visible_on_screen_notifier_2d_screen_exited() -> void:
+	if !dead:
+		death(true)

project.godot

@@ -41,3 +41,7 @@ move_right={
 , Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":4194321,"key_label":0,"unicode":0,"location":0,"echo":false,"script":null)
 ]
 }
+
+[rendering]
+
+environment/defaults/default_clear_color=Color(1, 1, 1, 1)