init

demo/scripts/fly_camera.gd

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+class_name FlyCamera
+extends Camera3D
+
+# WASD + QE + mouse look fly camera. No collision — you fly through walls
+# on purpose, so you can inspect the dungeon from any angle.
+
+@export var move_speed := 8.0
+@export var boost_multiplier := 3.0
+@export var mouse_sensitivity := 0.002
+
+var _yaw := 0.0
+var _pitch := 0.0
+var _captured := false
+
+func _ready() -> void:
+	_capture()
+	_yaw = rotation.y
+	_pitch = rotation.x
+
+func _capture() -> void:
+	Input.mouse_mode = Input.MOUSE_MODE_CAPTURED
+	_captured = true
+
+func _release() -> void:
+	Input.mouse_mode = Input.MOUSE_MODE_VISIBLE
+	_captured = false
+
+func _unhandled_input(event: InputEvent) -> void:
+	if event is InputEventMouseMotion and _captured:
+		var m := event as InputEventMouseMotion
+		_yaw -= m.relative.x * mouse_sensitivity
+		_pitch -= m.relative.y * mouse_sensitivity
+		_pitch = clamp(_pitch, deg_to_rad(-85.0), deg_to_rad(85.0))
+		rotation = Vector3(_pitch, _yaw, 0.0)
+	elif event is InputEventKey and event.pressed and event.keycode == KEY_ESCAPE:
+		_release()
+	elif event is InputEventMouseButton and event.pressed and not _captured:
+		_capture()
+
+func _process(delta: float) -> void:
+	var input := Vector3.ZERO
+	if Input.is_key_pressed(KEY_W): input.z -= 1.0
+	if Input.is_key_pressed(KEY_S): input.z += 1.0
+	if Input.is_key_pressed(KEY_A): input.x -= 1.0
+	if Input.is_key_pressed(KEY_D): input.x += 1.0
+	if Input.is_key_pressed(KEY_E): input.y += 1.0
+	if Input.is_key_pressed(KEY_Q): input.y -= 1.0
+
+	var speed := move_speed
+	if Input.is_key_pressed(KEY_SHIFT):
+		speed *= boost_multiplier
+
+	if input == Vector3.ZERO:
+		return
+
+	# Horizontal movement is yaw-relative; vertical stays in world space.
+	var yaw_basis := Basis(Vector3.UP, _yaw)
+	var dir := yaw_basis * Vector3(input.x, 0.0, input.z)
+	dir.y = input.y
+	dir = dir.normalized()
+	position += dir * speed * delta