Implement damage UI, damage and stale moves. (#45)

Reviewed-on: #45
Co-authored-by: Álex Román Núñez <eirexe@eirteam.moe>

src/ui/battle_ui.rs

@@ -0,0 +1,57 @@
+use bevy::prelude::*;
+
+use crate::{
+    fighter::manifest::{FighterManifest, FighterManifestRegistry}, match_loading::{PendingMatch}, ui::{errors::UIErrors, fighter_info::FighterInfoUI},
+};
+
+#[derive(Component, FromTemplate)]
+pub struct BattleUI {
+}
+
+pub fn spawn_battle_ui(mut commands: Commands, request: Res<PendingMatch>, fighter_registry: Res<FighterManifestRegistry>, manifests: Res<Assets<FighterManifest>>) -> Result {
+
+    let mut fighter_uis = vec![];
+
+    for player in &request.players {
+        let manifest = fighter_registry.get(player.fighter).ok_or_else(|| UIErrors::FighterManifestHandleNotFound(player.fighter))?;
+        let manifest = manifests.get(manifest).ok_or_else(|| UIErrors::FighterManifestNotFound(player.fighter))?;
+
+        fighter_uis.push(FighterInfoUI::build(manifest, player));
+    }
+
+    let scene = bsn! {
+        BattleUI {
+        }
+        Node {
+            width: percent(100),
+            height: percent(100),
+            flex_direction: FlexDirection::Column,
+            align_items: AlignItems::Center,
+            justify_content: JustifyContent::End,
+        }
+        Children [
+            (
+                #FighterInfos
+                Node {
+                    width: percent(100),
+                    flex_direction: FlexDirection::Row,
+                    align_items: AlignItems::End,
+                    justify_content: JustifyContent::SpaceEvenly,
+                }
+                Children [
+                    {fighter_uis}
+                ]
+            )
+        ]
+    };
+
+    commands.spawn_scene(scene);
+
+    Ok(())
+}
+
+pub fn cleanup_battle_ui(mut commands: Commands, battle_ui: Query<Entity, With<BattleUI>>) {
+    for entity in battle_ui {
+        commands.entity(entity).despawn();
+    }
+}

src/ui/errors.rs

@@ -0,0 +1,14 @@
+use bevy::{scene::SpawnSceneError};
+
+use crate::{fighter::FighterId};
+
+#[derive(thiserror::Error, Debug)]
+pub enum UIErrors {
+    #[error("Scene spawn failed: {0:?}")]
+    SceneSpawnFailed(#[from] SpawnSceneError),
+    #[error("Fighter manifest handle not found for fighter id {0:?}")]
+    FighterManifestHandleNotFound(FighterId),
+
+    #[error("Fighter manifest not found for fighter id {0:?}")]
+    FighterManifestNotFound(FighterId),
+}

src/ui/fighter_info.rs

@@ -0,0 +1,57 @@
+use bevy::prelude::*;
+
+use crate::{fighter::{attack::FighterDamage, manifest::{FighterManifest}}, match_loading::MatchPlayer, player::Player};
+
+#[derive(Component, FromTemplate)]
+pub struct FighterInfoUI {
+    percentage_text: Entity,
+    _name_text: Entity,
+    player_handle: usize,
+    visible_damage: FighterDamage,
+}
+
+impl FighterInfoUI {
+    pub fn build(_manifest: &FighterManifest, match_player: &MatchPlayer) -> impl Scene {
+        let fighter_name = "El grande padre";
+        bsn! {
+            FighterInfoUI {
+                percentage_text: #PercentageText,
+                _name_text: #NameText,
+                player_handle: {match_player.handle}
+            }
+            Node {
+                flex_direction: FlexDirection::Column,
+                align_items: AlignItems::Center,
+                justify_content: JustifyContent::Center,
+            }
+            Children [
+                (
+                    #PercentageText
+                    Text("0.00%")
+                    TextFont {
+                        font_size: px(crate::menus::style::H2_SIZE),
+                    }
+                ),
+                (
+                    #NameText
+                    Text({fighter_name})
+                )
+            ]
+        }
+    }
+}
+
+pub fn update_fighter_info_damage(fighters: Query<(&Player, &FighterDamage)>, ui_elements: Query<&mut FighterInfoUI>, mut commands: Commands) {
+    for mut ui_element in ui_elements {
+        let Some((_, damage)) = fighters.iter().find(|(player, _)| {
+            player.handle == ui_element.player_handle
+        }) else {
+            continue;
+        };
+
+        if *damage != ui_element.visible_damage {
+            commands.entity(ui_element.percentage_text).insert(Text(format!("{}%", damage)));
+            ui_element.visible_damage = damage.clone();
+        }
+    }
+}

src/ui/mod.rs

@@ -0,0 +1,18 @@
+use bevy::prelude::*;
+
+use crate::AppState;
+
+pub mod battle_ui;
+pub mod errors;
+pub mod fighter_info;
+
+#[derive(Default)]
+pub struct InGameUIPlugin;
+
+impl Plugin for InGameUIPlugin {
+    fn build(&self, app: &mut App) {
+        app.add_systems(OnEnter(AppState::InMatch), battle_ui::spawn_battle_ui)
+            .add_systems(OnExit(AppState::InMatch), battle_ui::cleanup_battle_ui)
+            .add_systems(PostUpdate, fighter_info::update_fighter_info_damage);
+    }
+}