如何在Godot中仅用触控板和键盘实现3D自由视角（笔记本无鼠标）

推荐按键组合 #

• 视角旋转：用**方向键（←/→/↑/↓）**控制左右、上下视角转动；也可采用双模式：普通WASD控制移动，按住Shift+WASD控制视角，无需切换按键组
• 移动：经典WASD控制前后左右，空格触发跳跃，左Ctrl实现下蹲
• 快速转视角：按住Shift或Alt配合方向键，提升视角转动速度，适配大范围视角调整需求

按键映射配置 #

在Godot项目设置的「输入映射」面板中，添加并绑定以下动作：

• forward：W键
• backward：S键
• left：A键
• right：D键
• jump：空格键
• crouch：左Ctrl键
• look_left：左方向键
• look_right：右方向键
• look_up：上方向键
• look_down：下方向键
• fast_look：Shift键

基础实现代码（GDScript） #

将以下脚本挂载到CharacterBody3D节点上，关联好子节点Camera3D：

extends CharacterBody3D

@export var move_speed: float = 5.0
@export var jump_force: float = 4.0
@export var look_speed: float = 0.1
@export var fast_look_multiplier: float = 2.0

@onready var camera = $Camera3D

var yaw: float = 0.0
var pitch: float = 0.0

func _physics_process(delta: float) -> void:
    # 移动逻辑
    var input_dir = Input.get_vector("left", "right", "forward", "backward").normalized()
    var move_dir = transform.basis * input_dir
    velocity.x = move_dir.x * move_speed
    velocity.z = move_dir.z * move_speed

    # 跳跃与下蹲
    if is_on_floor():
        if Input.is_action_just_pressed("jump"):
            velocity.y = jump_force
        velocity.y = -0.5 if Input.is_action_pressed("crouch") else -1.0
    else:
        velocity.y -= 9.8 * delta

    move_and_slide()

func _process(delta: float) -> void:
    # 视角旋转逻辑
    var look_multiplier = fast_look_multiplier if Input.is_action_pressed("fast_look") else 1.0
    var look_input = Input.get_vector("look_left", "look_right", "look_up", "look_down") * look_speed * look_multiplier * delta

    yaw -= look_input.x
    pitch += look_input.y
    pitch = clamp(pitch, -1.5, 1.5) # 限制上下视角，避免镜头翻转

    camera.rotation.x = pitch
    rotation.y = yaw

内容的提问来源于stack exchange，提问作者Sainath Shetty