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euv_engine/input/
struct.rs

1use crate::*;
2
3/// A zero-sized namespace struct providing static input event extraction methods.
4///
5/// This struct follows the same pattern as `App`, serving as a namespace for
6/// free-standing input utility functions that extract data from DOM events.
7#[derive(Clone, Copy, Data, Debug, Default, Eq, Hash, New, Ord, PartialEq, PartialOrd)]
8pub struct Input;
9
10/// Tracks the current state of all input devices (keyboard, mouse, touch)
11/// for a single game frame. The state should be updated by event handlers
12/// and cleared of per-frame data at the end of each frame.
13#[derive(Clone, Data, Debug, New, PartialEq)]
14pub struct InputState {
15    /// Key codes that were pressed during this frame.
16    #[get_mut(pub(crate))]
17    #[new(skip)]
18    pub(crate) keys_pressed: KeyStateSet,
19    /// Key codes that are currently held down.
20    #[get_mut(pub(crate))]
21    #[new(skip)]
22    pub(crate) keys_held: KeyStateSet,
23    /// Key codes that were released during this frame.
24    #[get_mut(pub(crate))]
25    #[new(skip)]
26    pub(crate) keys_released: KeyStateSet,
27    /// Mouse buttons that were pressed during this frame.
28    #[get_mut(pub(crate))]
29    #[new(skip)]
30    pub(crate) mouse_buttons_pressed: HashSet<MouseButton>,
31    /// Mouse buttons that are currently held down.
32    #[get_mut(pub(crate))]
33    #[new(skip)]
34    pub(crate) mouse_buttons_held: HashSet<MouseButton>,
35    /// Mouse buttons that were released during this frame.
36    #[get_mut(pub(crate))]
37    #[new(skip)]
38    pub(crate) mouse_buttons_released: HashSet<MouseButton>,
39    /// The current mouse position in screen coordinates.
40    #[get(type(copy))]
41    #[get_mut(pub(crate))]
42    #[new(skip)]
43    pub(crate) mouse_position: Vector2D,
44    /// The mouse position delta (movement) since the last frame.
45    #[get(type(copy))]
46    #[get_mut(pub(crate))]
47    #[new(skip)]
48    pub(crate) mouse_delta: Vector2D,
49    /// Whether the mouse has moved during this frame.
50    #[get(type(copy))]
51    #[get_mut(pub(crate))]
52    #[new(skip)]
53    pub(crate) mouse_moved: bool,
54    /// Active touch points mapped by identifier to screen position.
55    #[get_mut(pub(crate))]
56    #[new(skip)]
57    pub(crate) touch_points: TouchPointMap,
58    /// Touch point identifiers that started during this frame.
59    #[get_mut(pub(crate))]
60    #[new(skip)]
61    pub(crate) touch_started: HashSet<i32>,
62    /// Touch point identifiers that ended during this frame.
63    #[get_mut(pub(crate))]
64    #[new(skip)]
65    pub(crate) touch_ended: HashSet<i32>,
66}