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#![deny(missing_docs)]
extern crate input;
use input::Button;
use std::collections::HashMap;
#[derive(Clone)]
pub struct ButtonTracker {
current_buttons: HashMap<Button, bool>,
last_buttons: HashMap<Button, bool>,
}
impl ButtonTracker {
pub fn new() -> ButtonTracker {
ButtonTracker {
current_buttons: HashMap::new(),
last_buttons: HashMap::new(),
}
}
pub fn update(&mut self) {
for (button, state) in &self.current_buttons {
self.last_buttons.insert(*button, *state);
}
}
pub fn register_press(&mut self, button: &Button) {
self.current_buttons.insert(*button, true);
}
pub fn register_release(&mut self, button: &Button) {
self.current_buttons.insert(*button, false);
}
pub fn current_pressed(&self, button: &Button) -> bool {
if let Some(state) = self.current_buttons.get(button) {
*state
} else {
false
}
}
pub fn last_pressed(&self, button: &Button) -> bool {
if let Some(state) = self.last_buttons.get(button) {
*state
} else {
false
}
}
pub fn pressed_state(&self,
button: &Button,
last_state: bool,
current_state: bool)
-> bool {
self.last_pressed(button) == last_state && self.current_pressed(button) == current_state
}
}