Add third campaign battle path

src/game/scenes/BattleScene.ts

@@ -51,6 +51,17 @@ const unitTexture: Record<string, string> = {
   'pursuit-leader-han-seok': 'unit-rebel-leader'
 };
 
+const unitTextureByClass: Partial<Record<UnitClassKey, string>> = {
+  lord: 'unit-liu-bei',
+  infantry: 'unit-guan-yu',
+  spearman: 'unit-zhang-fei',
+  archer: 'unit-rebel-archer',
+  cavalry: 'unit-rebel-cavalry',
+  bandit: 'unit-rebel',
+  yellowTurban: 'unit-rebel',
+  rebelLeader: 'unit-rebel-leader'
+};
+
 const unitFrameRows: Record<UnitDirection, number> = {
   south: 0,
   east: 1,
@@ -806,7 +817,7 @@ export class BattleScene extends Phaser.Scene {
   private drawUnits() {
     battleUnits.forEach((unit) => {
       const sizeRatio = unit.faction === 'ally' ? 1.16 : 1.1;
-      const textureBase = unitTexture[unit.id] ?? 'unit-rebel';
+      const textureBase = unitTexture[unit.id] ?? unitTextureByClass[unit.classKey] ?? 'unit-rebel';
       const sprite = this.add.sprite(this.tileCenterX(unit.x), this.tileCenterY(unit.y), textureBase, this.unitFrameIndex('south'));
       sprite.setName(`unit-${unit.id}`);
       sprite.setDisplaySize(this.layout.tileSize * sizeRatio, this.layout.tileSize * sizeRatio);