feat: Implement tower selection and upgrade system with pan control

- Added allowPan flag to level scene to control camera panning
- Implemented interface manager to disable/enable panning when interfaces open/close
- Enhanced tower manager with:
  * Tower selection functionality
  * Visual range circle and rotating line indicator
  * Global click handler to close upgrade menu when clicking outside towers
  * Depth management for tower sprites
  * Pointer overlap detection for UI interactions

This enables proper tower selection, visual feedback during upgrades, and prevents camera panning while interacting with the UI.

src/levels/level.js

@@ -4,6 +4,8 @@ import { TowerManager } from '../support/towerManager.js';
 export class Level extends Phaser.Scene {
     constructor() {
         super({ key: 'Level' });
+
+        this.allowPan = true;
     }
 
     init(data) {
@@ -81,7 +83,7 @@ export class Level extends Phaser.Scene {
 
         // Add camera panning functionality
         this.input.on('pointerdown', (pointer) => {
-            if (pointer.button === 0) { // Left mouse button
+            if (pointer.button === 0 && this.allowPan === true) { // Left mouse button
                 this.isPanning = true;
                 this.panStartX = pointer.x;
                 this.panStartY = pointer.y;

src/support/interfaceManager.js

@@ -205,6 +205,7 @@ export class InterfaceManager {
 
     openInterface() {
         this.interfaceOpen = true;
+        this.scene.levelScene.allowPan = false;
         this.upLeft.setAlpha(0).setRotation(Math.PI);
         this.upRight.setAlpha(0).setRotation(Math.PI);
         this.interfaceText.setAlpha(0).setText('Click to Close');
@@ -225,6 +226,7 @@ export class InterfaceManager {
 
     closeInterface() {
         this.interfaceOpen = false;
+        this.scene.levelScene.allowPan = true;
         this.upLeft.setAlpha(0).setRotation(0);
         this.upRight.setAlpha(0).setRotation(0);
         this.interfaceText.setAlpha(0).setText('Click to Open');

src/support/towerManager.js

@@ -7,16 +7,24 @@ export class TowerManager {
         this.scene = scene;
         this.lastFired = {}; // Track last fire time for each tower
         this.following = {};
+        this.selectedTower = null;
 
         this.createAnims();
+
+        // Add global click handler to close upgrade menu
+        this.scene.input.on('pointerdown', (pointer) => {
+            if (this.selectedTower && !this.isPointerOverTower(pointer)) {
+                this.closeUpgradeMenu();
+            }
+        });
     }
 
     createTower(type, x, y) {
         const posX = this.scene.gridToLocation(x);
         const posY = this.scene.gridToLocation(y);
 
-        const towerBase = this.scene.add.sprite(posX, posY, 'towers', 7);
+        const towerBase = this.scene.add.sprite(posX, posY, 'towers', 7).setDepth(10);
-        const tower = this.scene.add.sprite(posX, posY, 'towers', TOWERS_CONFIG[type].spriteStart);
+        const tower = this.scene.add.sprite(posX, posY, 'towers', TOWERS_CONFIG[type].spriteStart).setDepth(11);
         tower.props = {
             'type': type,
             'level': 1
@@ -29,7 +37,9 @@ export class TowerManager {
         this.scene.towers.add(tower);
         tower.setInteractive();
         tower.on('pointerdown', () => {
+            if (!this.selectedTower) {
                 this.upgradeMenu(tower);  
+            }  
         });
 
         // Draw range circle
@@ -41,6 +51,25 @@ export class TowerManager {
     }
 
     upgradeMenu(tower) {
+        this.selectedTower = tower;
+        const camera = this.scene.cameras.main;
+        const towerLocX = tower.x - camera.scrollX;
+        const towerLocY = tower.y - camera.scrollY;
+        this.rangeCircle = this.scene.add.circle(tower.x, tower.y, TOWERS_CONFIG[tower.props.type].level1.range, 0xc009900, 0.2)
+            .setOrigin(0.5)
+            .setDepth(5);
+        // Add a line from center to edge of range circle
+        this.centerToEdgeLine = this.scene.add.line(tower.x, tower.y, 0, 0, TOWERS_CONFIG[tower.props.type].level1.range, 0, 0x00ff00)
+            .setOrigin(0)
+            .setDepth(6);
+        this.scene.tweens.add({
+            targets: this.centerToEdgeLine,
+            angle: 360,
+            duration: 8000,
+            repeat: -1
+        });
+        console.log('here');
+
         // TODO: update this asap.
         const nextLevel = `level${tower.props.level+1}`;
         if (this.scene.UIScene.interfaceManager.gold >= TOWERS_CONFIG[tower.props.type][nextLevel].cost){
@@ -48,6 +77,32 @@ export class TowerManager {
         }
     }
 
+    isPointerOverTower(pointer) {
+        // Check if pointer is over any tower
+        let isOverTower = false;
+        this.scene.towers.children.iterate((tower) => {
+            if (tower.getBounds().contains(pointer.x, pointer.y)) {
+                isOverTower = true;
+                return false; // Break iteration
+            }
+        });
+        return isOverTower;
+    }
+
+    closeUpgradeMenu() {
+        if (this.rangeCircle) {
+            this.rangeCircle.destroy();
+            this.rangeCircle = null;
+        }
+        
+        if (this.centerToEdgeLine) {
+            this.centerToEdgeLine.destroy();
+            this.centerToEdgeLine = null;
+        }
+        
+        this.selectedTower = null;
+    }
+
     upgradeTower(tower) {
 
         if (tower.props.level === 3) return;