Add zoom and drag to move camera

src/scenes/GameScene.ts

@@ -33,6 +33,7 @@ export class GameScene extends Phaser.Scene {
 
   private playerPath: Vec2[] = [];
   private awaitingPlayer = false;
+  private followPlayer = true;
 
   // Sub-systems
   private dungeonRenderer!: DungeonRenderer;
@@ -144,8 +145,66 @@ export class GameScene extends Phaser.Scene {
     });
 
 
+
+    // Zoom Control
+    this.input.on(
+      "wheel",
+      (
+        _pointer: Phaser.Input.Pointer,
+        _gameObjects: any,
+        _deltaX: number,
+        deltaY: number,
+        _deltaZ: number
+      ) => {
+        if (this.isMenuOpen || this.isInventoryOpen || this.dungeonRenderer.isMinimapVisible()) return;
+
+        const zoomDir = deltaY > 0 ? -1 : 1;
+        const newZoom = Phaser.Math.Clamp(
+          this.cameras.main.zoom + zoomDir * GAME_CONFIG.rendering.zoomStep,
+          GAME_CONFIG.rendering.minZoom,
+          GAME_CONFIG.rendering.maxZoom
+        );
+        this.cameras.main.setZoom(newZoom);
+      }
+    );
+
+    // Disable context menu for right-click panning
+    this.input.mouse?.disableContextMenu();
+
+    // Camera Panning
+    this.input.on("pointermove", (p: Phaser.Input.Pointer) => {
+      if (!p.isDown) return;
+      if (this.isMenuOpen || this.isInventoryOpen || this.dungeonRenderer.isMinimapVisible()) return;
+
+      // Pan with Middle Click or Right Click
+      // Note: p.button is not always reliable in move events for holding, 
+      // so we use specific button down checks or the shift key modifier.
+      const isRightDrag = p.rightButtonDown();
+      const isMiddleDrag = p.middleButtonDown();
+      const isShiftDrag = p.isDown && p.event.shiftKey;
+
+      if (isRightDrag || isMiddleDrag || isShiftDrag) { 
+          const { x, y } = p.position;
+          const { x: prevX, y: prevY } = p.prevPosition;
+          
+          const dx = (x - prevX) / this.cameras.main.zoom;
+          const dy = (y - prevY) / this.cameras.main.zoom;
+
+          this.cameras.main.scrollX -= dx;
+          this.cameras.main.scrollY -= dy;
+          
+          this.followPlayer = false;
+      }
+    });
+
     // Mouse click -> compute path (only during player turn, and not while menu/minimap is open)
     this.input.on("pointerdown", (p: Phaser.Input.Pointer) => {
+      // Only allow Left Click (0) for movement
+      if (p.button !== 0) return;
+
+      this.followPlayer = true;
+
+
       if (!this.awaitingPlayer) return;
       if (this.isMenuOpen || this.isInventoryOpen || this.dungeonRenderer.isMinimapVisible()) return;
 
@@ -258,6 +317,7 @@ export class GameScene extends Phaser.Scene {
 
   private commitPlayerAction(action: Action) {
     this.awaitingPlayer = false;
+    this.followPlayer = true;
 
     const playerEvents = applyAction(this.world, this.playerId, action, this.entityManager);
     const enemyStep = stepUntilPlayerTurn(this.world, this.playerId, this.entityManager);
@@ -328,13 +388,16 @@ export class GameScene extends Phaser.Scene {
     }
 
     this.dungeonRenderer.computeFov(this.playerId);
-    this.centerCameraOnPlayer();
+    if (this.followPlayer) {
+      this.centerCameraOnPlayer();
+    }
     this.dungeonRenderer.render(this.playerPath);
     this.emitUIUpdate();
   }
 
   private loadFloor(floor: number) {
     this.floorIndex = floor;
+    this.followPlayer = true;
 
     const { world, playerId } = generateWorld(floor, this.runState);
     this.world = world;