#[derive(Debug, Default)]
pub struct MouseIO {
    pub position: [f32; 2],           // 鼠标当前位置
    pub drag_delta: Option<[f32; 2]>, // 拖动开始时的鼠标位置
    pub is_dragging: bool,            // 是否正在拖动
    pub left_button_pressed: bool,    // 左键是否被按下
    pub right_button_pressed: bool,   // 右键是否被按下
    pub wheel_delta: f32,             // 鼠标滚轮变化值
    pub drag_sum: [f32; 2],           // 拖动累计值
}

#[derive(Debug)]
pub struct KeyboardIO {
    pub keys: [bool; 4], // 键盘按键状态
}

impl Default for KeyboardIO {
    fn default() -> Self {
        Self { keys: [false; 4] }
    }
}

#[derive(Debug, Default)]
pub struct IO {
    pub mouse: MouseIO,
    pub keyboard: KeyboardIO,
}

impl IO {
    pub fn reset(&mut self) {
        self.mouse.wheel_delta = 0.0;
    }
}