57 lines
1.4 KiB
Rust
57 lines
1.4 KiB
Rust
use crate::{ElementState, Input};
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use bevy_app::prelude::EventReader;
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use bevy_ecs::ResMut;
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use bevy_math::Vec2;
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/// A mouse button input event
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#[derive(Debug, Clone)]
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pub struct MouseButtonInput {
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pub button: MouseButton,
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pub state: ElementState,
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}
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/// A button on a mouse device
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#[derive(Debug, Hash, PartialEq, Eq, Clone, Copy)]
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#[cfg_attr(feature = "serialize", derive(serde::Serialize, serde::Deserialize))]
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pub enum MouseButton {
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Left,
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Right,
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Middle,
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Other(u16),
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}
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/// A mouse motion event
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#[derive(Debug, Clone)]
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pub struct MouseMotion {
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pub delta: Vec2,
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}
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/// Unit of scroll
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#[derive(Debug, Clone, Copy)]
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pub enum MouseScrollUnit {
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Line,
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Pixel,
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}
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/// A mouse scroll wheel event, where x represents horizontal scroll and y represents vertical scroll.
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#[derive(Debug, Clone)]
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pub struct MouseWheel {
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pub unit: MouseScrollUnit,
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pub x: f32,
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pub y: f32,
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}
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/// Updates the Input<MouseButton> resource with the latest MouseButtonInput events
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pub fn mouse_button_input_system(
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mut mouse_button_input: ResMut<Input<MouseButton>>,
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mut mouse_button_input_events: EventReader<MouseButtonInput>,
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) {
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mouse_button_input.update();
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for event in mouse_button_input_events.iter() {
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match event.state {
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ElementState::Pressed => mouse_button_input.press(event.button),
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ElementState::Released => mouse_button_input.release(event.button),
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}
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}
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}
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