it works

scripts/coin.gd

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+extends Area2D
+@onready var aplayer = $AnimationPlayer
+func _ready() -> void:
+	print("coin ready!")
+
+func _on_body_entered(body:Node2D) -> void:
+	GameManager.add_point()
+	aplayer.play("pickup_sound")

scripts/coin.gd.uid

@@ -0,0 +1 @@
+uid://dafe64tmpvrbe

scripts/killzone.gd

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+extends Area2D
+
+@onready var timer = $Timer
+
+func _on_body_entered(body:Node2D) -> void:
+	print("dead.")
+	body.get_node("CollisionShape2D").queue_free()
+	Engine.time_scale = 0.5
+	timer.start()
+	
+
+
+func _on_timer_timeout() -> void:
+	print("reloading")
+	Engine.time_scale = 1.0
+	get_tree().reload_current_scene()

scripts/killzone.gd.uid

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+uid://db8xxth4oa6xg

scripts/playermovement.gd

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+extends CharacterBody2D
+@onready var mysprite = $AnimatedSprite2D
+
+const SPEED = 100.0
+const JUMP_VELOCITY = -250.0
+
+func _physics_process(delta: float) -> void:
+	# Add the gravity.
+	if not is_on_floor():
+		velocity += get_gravity() * delta
+
+	# Handle jump.
+	if Input.is_action_just_pressed("jump") :
+		if is_on_floor():
+			velocity.y = JUMP_VELOCITY
+	
+	# gets dir -1,0,1
+	var direction := Input.get_axis("move_left", "move_right")
+
+	#flip sprite
+	var flippy = direction<0
+	mysprite.flip_h = flippy
+	
+	if is_on_floor():
+		if direction==0:
+			mysprite.play("default")
+		else:
+			mysprite.play("run")
+	else:
+		mysprite.play("jump")
+	
+	
+	
+
+
+	if direction:
+		velocity.x = direction * SPEED
+	else:
+		velocity.x = move_toward(velocity.x, 0, SPEED)
+	
+	move_and_slide()

scripts/playermovement.gd.uid

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+uid://dfmh1h3u1186s

scripts/slime.gd

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+extends Node2D
+
+
+const SPEED = 50.0
+var direction = 1.0
+
+@onready var ray_left = $raycastleft
+@onready var ray_right = $raycastright
+@onready var mysprite = $AnimatedSprite2D
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	print("slime..ready to eat.")
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	if ray_right.is_colliding():
+		direction = -1
+		mysprite.flip_h = true
+	if ray_left.is_colliding():
+		direction = 1 
+		mysprite.flip_h = false
+
+	position.x += direction * SPEED * delta

scripts/slime.gd.uid

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+uid://b3qxwn2ta73vx