started new game project with big 4 objects, custom signal, game controller

scripts/game_controller.gd

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+extends Node2D
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	pass
+
+
+func _on_trigger_fired(intent: Variant, body: PhysicsBody2D) -> void:
+	print("Game controller knows %s trigger fired " % intent)
+	match intent:
+		"destroy":
+			print("Destroy this thing!")
+			if body is RigidBody2D:
+				body.queue_free()
+		"powerup":
+			print("Power this thing up!")

scripts/game_controller.gd.uid

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+uid://d0ca3jbhe8le3

scripts/player.gd

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+extends CharacterBody2D
+
+
+const SPEED = 300.0
+const JUMP_VELOCITY = -600.0
+
+@export var BUMP_POWER = 100
+
+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("ui_accept") and is_on_floor():
+		velocity.y = JUMP_VELOCITY
+
+	# Get the input direction and handle the movement/deceleration.
+	# As good practice, you should replace UI actions with custom gameplay actions.
+	var direction := Input.get_axis("ui_left", "ui_right")
+	if direction:
+		velocity.x = direction * SPEED
+	else:
+		velocity.x = move_toward(velocity.x, 0, SPEED)
+
+	move_and_slide()
+	# Handle world reactions
+	for i in get_slide_collision_count():
+		var c = get_slide_collision(i)
+		if c.get_collider() is RigidBody2D:
+			c.get_collider().apply_central_impulse(-c.get_normal() * BUMP_POWER)

scripts/player.gd.uid

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+uid://d3hp5rjoph7hg

scripts/trigger.gd

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+extends Area2D
+
+@export var intent = "destroy"
+
+signal trigger_fired(intent, body)
+
+func _on_body_entered(body: Node2D) -> void:
+	print("Trigger fired!")
+	trigger_fired.emit(intent, body)

scripts/trigger.gd.uid

@@ -0,0 +1 @@
+uid://b42dg3hjkwph