71 lines
1.8 KiB
Rust
71 lines
1.8 KiB
Rust
use std::collections::HashMap;
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use sdl2::event::Event;
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use sdl2::keyboard::Keycode;
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pub struct KeyboardHandler {
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pressed_keys: HashMap<Keycode, bool>,
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released_keys: HashMap<Keycode, bool>,
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held_keys: HashMap<Keycode, bool>,
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}
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impl KeyboardHandler {
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pub fn new() -> KeyboardHandler {
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KeyboardHandler {
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pressed_keys: HashMap::new(),
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released_keys: HashMap::new(),
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held_keys: HashMap::new(),
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}
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}
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pub fn process(&mut self, event: &Event) {
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match *event {
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Event::KeyDown {
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keycode, repeat, ..
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} => if !repeat {
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self.key_down(keycode.unwrap());
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},
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Event::KeyUp { keycode, .. } => {
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self.key_up(keycode.unwrap());
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}
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_ => (),
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}
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}
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pub fn clear(&mut self) {
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self.pressed_keys.clear();
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self.released_keys.clear();
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}
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pub fn key_down(&mut self, keycode: Keycode) {
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self.pressed_keys.insert(keycode, true);
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self.held_keys.insert(keycode, true);
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}
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pub fn key_up(&mut self, keycode: Keycode) {
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self.released_keys.insert(keycode, true);
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self.held_keys.insert(keycode, false);
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}
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pub fn was_pressed(&self, keycode: Keycode) -> bool {
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match self.pressed_keys.get(&keycode) {
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Some(state) => *state,
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None => false,
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}
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}
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pub fn was_released(&self, keycode: Keycode) -> bool {
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match self.released_keys.get(&keycode) {
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Some(state) => *state,
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None => false,
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}
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}
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pub fn is_held(&self, keycode: Keycode) -> bool {
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match self.held_keys.get(&keycode) {
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Some(state) => *state,
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None => false,
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}
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}
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}
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