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    use std::collections::HashSet;
    use sfml::window::{Key, Event, mouse::Button};

    pub struct Input {
        held_keys: HashSet<Key>,
        held_mouse: HashSet<u8>,
    }

    impl Input {
        pub fn new() -> Input {

            let mut key_container = HashSet::new();
            let mut mouse_container = HashSet::new();
            Input {
                held_keys: key_container,
                held_mouse: mouse_container,
            }
        }

        pub fn is_held(&self, key: Key) -> bool {
            self.held_keys.contains(&key)
        }

        pub fn is_mousebutton_held(&self, button: Button) -> bool {
            self.held_mouse.contains(&(button as u8))
        }

        pub fn ingest(&mut self, event: &Event) {
            match event {
                Event::KeyPressed { code, .. } => {
                    self.held_keys.insert(code.clone());
                }
                Event::KeyReleased { code, .. } => {
                    self.held_keys.remove(code);
                }
                Event::MouseButtonPressed { button, x, y } => {
                    self.held_mouse.insert(button.clone() as u8);
                },
                Event::MouseButtonReleased { button, x, y } => {
                    self.held_mouse.remove(&(button.clone() as u8));
                },
                _ => {}
            }
        }
    }

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