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();
+    }
+}