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use bevy::{
diagnostic::{FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin},
prelude::{
App as BevyApp, AssetServer, Bundle, Color, Commands, Component, Entity, In, Query, Res,
ResMut, Vec2,
},
DefaultPlugins,
};
use kayak_ui::prelude::{widgets::*, KStyle, *};
#[derive(Component, Default, Clone, PartialEq)]
pub struct MyQuad {
pos: Vec2,
pub size: Vec2,
pub color: Color,
}
fn my_quad_update(
In((_widget_context, entity)): In<(KayakWidgetContext, Entity)>,
mut query: Query<(&MyQuad, &mut KStyle, &mut OnEvent)>,
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if let Ok((quad, mut style, mut on_event)) = query.get_mut(entity) {
if style.render_command.resolve() != RenderCommand::Quad {
style.render_command = StyleProp::Value(RenderCommand::Quad);
style.position_type = StyleProp::Value(PositionType::SelfDirected);
style.left = StyleProp::Value(Units::Pixels(quad.pos.x));
style.top = StyleProp::Value(Units::Pixels(quad.pos.y));
style.width = StyleProp::Value(Units::Pixels(quad.size.x));
style.height = StyleProp::Value(Units::Pixels(quad.size.y));
style.background_color = StyleProp::Value(quad.color);
}
*on_event = OnEvent::new(
move |In((event_dispatcher_context, _, event, entity)): In<(
EventDispatcherContext,
WidgetState,
Event,
Entity,
)>,
mut query: Query<(&mut KStyle, &MyQuad)>| {
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);
}
}
_ => {}
}
(event_dispatcher_context, event)
},
);
}
impl Widget for MyQuad {}
#[derive(Bundle)]
pub struct MyQuadBundle {
my_quad: MyQuad,
styles: KStyle,
widget_name: WidgetName,
}
impl Default for MyQuadBundle {
fn default() -> Self {
Self {
my_quad: Default::default(),
styles: KStyle::default(),
on_event: OnEvent::default(),
widget_name: MyQuad::default().get_name(),
}
}
}
fn startup(
mut commands: Commands,
mut font_mapping: ResMut<FontMapping>,
asset_server: Res<AssetServer>,
) {
font_mapping.set_default(asset_server.load("roboto.kayak_font"));
commands.spawn(UICameraBundle::new());
let mut widget_context = KayakRootContext::new();
widget_context.add_widget_system(
MyQuad::default().get_name(),
widget_update::<MyQuad, EmptyState>,
my_quad_update,
);
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let parent_id = None;
rsx! {
<KayakAppBundle>
{
(0..1000).for_each(|_| {
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(),
1.0,
);
constructor! {
<MyQuadBundle
my_quad={MyQuad { pos, size, color }}
/>
}
});
}
</KayakAppBundle>
}
commands.insert_resource(widget_context);
}
fn main() {
BevyApp::new()
.add_plugins(DefaultPlugins)
.add_plugin(LogDiagnosticsPlugin::default())
.add_plugin(FrameTimeDiagnosticsPlugin::default())
.add_plugin(KayakContextPlugin)
.add_plugin(KayakWidgets)
.add_startup_system(startup)
.run()
}