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use bevy::{
diagnostic::{FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin},
prelude::*,
};
use kayak_ui::prelude::{widgets::*, KStyle, *};
#[derive(Component, Default, Clone, PartialEq)]
pub struct MyQuad {
pos: Vec2,
pub size: Vec2,
pub color: Color,
pub z_index: i32,
}
fn my_quad_update(
In(entity): In<Entity>,
mut query: Query<(&MyQuad, &KStyle, &mut ComputedStyles, &mut OnEvent)>,
) -> bool {
if let Ok((quad, style, mut computed_styles, mut on_event)) = query.get_mut(entity) {
*computed_styles = KStyle::default()
.with_style(KStyle {
render_command: StyleProp::Value(RenderCommand::Quad),
position_type: StyleProp::Value(KPositionType::SelfDirected),
left: StyleProp::Value(Units::Pixels(quad.pos.x)),
top: StyleProp::Value(Units::Pixels(quad.pos.y)),
width: StyleProp::Value(Units::Pixels(quad.size.x)),
height: StyleProp::Value(Units::Pixels(quad.size.y)),
z_index: StyleProp::Value(quad.z_index),
..Default::default()
})
.with_style(style)
.with_style(KStyle {
background_color: StyleProp::Value(quad.color),
..Default::default()
})
.into();
*on_event = OnEvent::new(
move |In(_entity): In<Entity>,
mut event: ResMut<KEvent>,
mut query: Query<(&mut KStyle, &MyQuad)>| {
event.prevent_default();
event.stop_propagation();
match event.event_type {
EventType::MouseIn(..) => {
if let Ok((mut styles, _)) = query.get_mut(entity) {
styles.background_color = StyleProp::Value(Color::WHITE);
}
}
EventType::MouseOut(..) => {
if let Ok((mut styles, my_quad)) = query.get_mut(entity) {
styles.background_color = StyleProp::Value(my_quad.color);
}
}
_ => {}
}
},
);
}
true
}
impl Widget for MyQuad {}
#[derive(Bundle)]
pub struct MyQuadBundle {
my_quad: MyQuad,
styles: KStyle,
computed_styles: ComputedStyles,
on_event: OnEvent,
widget_name: WidgetName,
}
impl Default for MyQuadBundle {
fn default() -> Self {
Self {
my_quad: Default::default(),
styles: KStyle::default(),
on_event: OnEvent::default(),
computed_styles: ComputedStyles::default(),
widget_name: MyQuad::default().get_name(),
}
}
}
fn startup(
mut commands: Commands,
mut font_mapping: ResMut<FontMapping>,
asset_server: Res<AssetServer>,
) {
let camera_entity = commands
.spawn((Camera2dBundle::default(), CameraUIKayak))
.id();
font_mapping.set_default(asset_server.load("roboto.kayak_font"));
let mut widget_context = KayakRootContext::new(camera_entity);
widget_context.add_plugin(KayakWidgetsContextPlugin);
widget_context.add_widget_system(
MyQuad::default().get_name(),
widget_update::<MyQuad, EmptyState>,
my_quad_update,
);
let parent_id = None;
rsx! {
<KayakAppBundle>
{
(0..1000i32).for_each(|i| {
let pos = Vec2::new(fastrand::i32(0..1280) as f32, fastrand::i32(0..720) as f32);
let size = Vec2::new(
fastrand::i32(32..64) as f32,
fastrand::i32(32..64) as f32,
);
let color = Color::rgba(
fastrand::f32(),
fastrand::f32(),
fastrand::f32(),
fastrand::f32(),
);
constructor! {
<MyQuadBundle
my_quad={MyQuad { pos, size, color, z_index: i }}
/>
}
});
}
</KayakAppBundle>
};
commands.spawn((widget_context, EventDispatcher::default()));
}
fn main() {
App::new()
.add_plugins(DefaultPlugins)
.add_plugins((
LogDiagnosticsPlugin::default(),
FrameTimeDiagnosticsPlugin,
KayakContextPlugin,
KayakWidgets,
))
.add_systems(Startup, startup)
.run()
}