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#[derive(Default)]
pub struct ButtonState {
pub a: bool,
pub b: bool,
pub select: bool,
pub start: bool,
pub up: bool,
pub down: bool,
pub left: bool,
pub right: bool,
}
#[derive(Default)]
pub(crate) struct Controller {
buttons: [bool; 8],
index: u8,
strobe: bool,
}
impl Controller {
pub fn new() -> Self {
Controller::default()
}
pub fn set_buttons(&mut self, buttons: ButtonState) {
self.buttons = [
buttons.a,
buttons.b,
buttons.select,
buttons.start,
buttons.up,
buttons.down,
buttons.left,
buttons.right,
];
}
pub fn read(&mut self) -> u8 {
let index = self.index as usize;
let res = if *self.buttons.get(index).unwrap_or(&false) {
1
} else {
0
};
self.index += 1;
if self.strobe {
self.index = 0;
}
res
}
pub fn write(&mut self, value: u8) {
self.strobe = value & 1 == 1;
if self.strobe {
self.index = 0;
}
}
}