feat: Add scene with track loop and mine cart

src/engine/systems/MineCartSystem.ts

@@ -0,0 +1,62 @@
+import Phaser from "phaser";
+import { GAME_CONFIG } from "../../core/config/GameConfig";
+import { TrackDirection } from "./TrackSystem";
+
+export interface MineCartState {
+  x: number;
+  y: number;
+  facing: { dx: number, dy: number };
+}
+
+export class MineCartSystem {
+  static updateOrientation(sprite: Phaser.GameObjects.Sprite, dx: number, dy: number, _connections: TrackDirection) {
+    const { mineCarts } = GAME_CONFIG.rendering;
+
+    // Horizontal movement
+    if (dx !== 0 && dy === 0) {
+      sprite.setFrame(mineCarts.horizontal);
+      sprite.setFlipX(dx < 0);
+      sprite.setAngle(0);
+    }
+    // Vertical movement
+    else if (dy !== 0 && dx === 0) {
+      sprite.setFrame(mineCarts.vertical);
+      sprite.setFlipY(false);
+      sprite.setAngle(0);
+    }
+    // Turning (Corner case)
+    else {
+      sprite.setFrame(mineCarts.turning);
+      // Logic for 56 (turned from right to down by default)
+      // We need to rotate/flip to match the actual turn.
+      // This is a bit complex without seeing the sprite, but we'll approximate:
+      if (dx > 0 && dy > 0) sprite.setAngle(0);       // Right to Down
+      if (dx < 0 && dy < 0) sprite.setAngle(180);     // Left to Up
+      if (dx > 0 && dy < 0) sprite.setAngle(-90);     // Right to Up
+      if (dx < 0 && dy > 0) sprite.setAngle(90);      // Left to Down
+    }
+  }
+
+  static getNextPosition(current: { x: number, y: number }, dx: number, dy: number, isTrack: (x: number, y: number) => boolean): { x: number, y: number, dx: number, dy: number } | null {
+    const nextX = current.x + dx;
+    const nextY = current.y + dy;
+
+    if (isTrack(nextX, nextY)) {
+      return { x: nextX, y: nextY, dx, dy };
+    }
+
+    // Try turning if blocked
+    const possibleTurns = [
+      { tdx: dy, tdy: -dx }, // Left turn
+      { tdx: -dy, tdy: dx }  // Right turn
+    ];
+
+    for (const turn of possibleTurns) {
+      if (isTrack(current.x + turn.tdx, current.y + turn.tdy)) {
+        return { x: current.x + turn.tdx, y: current.y + turn.tdy, dx: turn.tdx, dy: turn.tdy };
+      }
+    }
+
+    return null;
+  }
+}