init

demo/scripts/player.gd

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+class_name Player
+extends CharacterBody3D
+
+# First-person player controller. WASD relative to body yaw, mouse look
+# (yaw on the body, pitch on the child Camera3D). Jump on space. Gravity
+# is always on — falling into a chasm drops you onto the level below.
+
+@export var speed := 6.0
+@export var run_multiplier := 1.8
+@export var jump_velocity := 6.0
+@export var gravity := 22.0
+@export var mouse_sensitivity := 0.002
+
+@onready var camera: Camera3D = $Camera3D
+
+var _pitch := 0.0
+var _captured := false
+
+func _ready() -> void:
+	_capture()
+
+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
+		rotation.y -= m.relative.x * mouse_sensitivity
+		_pitch -= m.relative.y * mouse_sensitivity
+		_pitch = clamp(_pitch, deg_to_rad(-85.0), deg_to_rad(85.0))
+		camera.rotation.x = _pitch
+	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 _physics_process(delta: float) -> void:
+	# Gravity.
+	if not is_on_floor():
+		velocity.y -= gravity * delta
+
+	# Horizontal movement relative to yaw.
+	var input := Vector2.ZERO
+	if Input.is_key_pressed(KEY_W): input.y -= 1.0
+	if Input.is_key_pressed(KEY_S): input.y += 1.0
+	if Input.is_key_pressed(KEY_A): input.x -= 1.0
+	if Input.is_key_pressed(KEY_D): input.x += 1.0
+	input = input.normalized()
+
+	var s := speed
+	if Input.is_key_pressed(KEY_SHIFT):
+		s *= run_multiplier
+
+	var forward := -transform.basis.z
+	var right := transform.basis.x
+	var horiz := (forward * -input.y + right * input.x) * s
+	velocity.x = horiz.x
+	velocity.z = horiz.z
+
+	# Jump.
+	if is_on_floor() and Input.is_key_pressed(KEY_SPACE):
+		velocity.y = jump_velocity
+
+	move_and_slide()