Selectable backgrounds with live preview in settings

- 6 procedural, vertically-tiling backgrounds generated in BootScene:
  Grid, Hex Nodes, Starfield, Synthwave, Circuit, Void
- config/backgrounds.js registry + utils/background.js helper; selection
  persisted via storage (KEYS.background)
- Menu / Game / GameOver use the selected background texture
- Settings overlay gains a BACKGROUND selector: in-panel live preview tile
  + < name > cycling, updates the menu background live and persists choice
- Fix: stepper/arrow buttons now add both bg and label to the modal so the
  -, +, <, > glyphs render above the panel

src/config/backgrounds.js

@@ -0,0 +1,19 @@
+/**
+ * Selectable backgrounds. Each `texture` is generated procedurally in
+ * BootScene.createBackgroundTextures and used as a tiling tileSprite.
+ * All patterns are designed to tile vertically so the parallax scroll is seamless.
+ */
+export const BACKGROUNDS = [
+  { id: 'grid', name: 'Grid', texture: 'bg_grid' },
+  { id: 'hex', name: 'Hex Nodes', texture: 'bg_hex' },
+  { id: 'starfield', name: 'Starfield', texture: 'bg_starfield' },
+  { id: 'synthwave', name: 'Synthwave', texture: 'bg_synthwave' },
+  { id: 'circuit', name: 'Circuit', texture: 'bg_circuit' },
+  { id: 'void', name: 'Void', texture: 'bg_void' },
+];
+
+export const DEFAULT_BACKGROUND = 'grid';
+
+export function getBackground(id) {
+  return BACKGROUNDS.find((b) => b.id === id) || BACKGROUNDS[0];
+}

src/scenes/BootScene.js

@@ -18,10 +18,150 @@ export class BootScene extends Scene {
 
   create() {
     this.createBackgrounds();
+    this.createBackgroundTextures();
     this.createParticleTextures();
     this.scene.start('MenuScene');
   }
 
+  // Generates a texture via an off-screen graphics buffer.
+  _tex(key, w, h, draw) {
+    const g = this.make.graphics({ x: 0, y: 0, add: false });
+    draw(g);
+    g.generateTexture(key, w, h);
+    g.destroy();
+  }
+
+  createBackgroundTextures() {
+    const S = 256;
+
+    // 1) Grid — Monad blockchain grid (default look, larger so kept as bg_grid)
+    this._tex('bg_grid', S, S, (g) => {
+      g.fillStyle(0x0f001f, 1);
+      g.fillRect(0, 0, S, S);
+      g.lineStyle(1, 0x2e0059, 0.4);
+      for (let i = 0; i <= S; i += 32) {
+        g.moveTo(i, 0); g.lineTo(i, S);
+        g.moveTo(0, i); g.lineTo(S, i);
+      }
+      g.strokePath();
+      // node dots at some intersections (deterministic -> tiles)
+      g.fillStyle(0x7c3aed, 0.35);
+      for (let x = 0; x <= S; x += 64) {
+        for (let y = 0; y <= S; y += 64) {
+          if (((x + y) / 64) % 2 === 0) g.fillCircle(x, y, 2);
+        }
+      }
+    });
+
+    // 2) Hex Nodes — honeycomb
+    this._tex('bg_hex', S, S, (g) => {
+      g.fillStyle(0x0d0420, 1);
+      g.fillRect(0, 0, S, S);
+      const r = 22;
+      const w = Math.sqrt(3) * r;
+      const vSpace = 1.5 * r;
+      g.lineStyle(1.5, 0x6d28d9, 0.30);
+      for (let row = -1, ry = 0; ry < S + r; row++, ry = row * vSpace) {
+        const offset = (row % 2 === 0) ? 0 : w / 2;
+        for (let cx = -w; cx < S + w; cx += w) {
+          this._hex(g, cx + offset, ry, r);
+        }
+      }
+      // accent glow nodes
+      g.fillStyle(0xa855f7, 0.25);
+      for (let row = 0, ry = 0; ry < S; row += 2, ry = row * vSpace) {
+        for (let cx = 0; cx < S; cx += w * 2) g.fillCircle(cx, ry, 2.5);
+      }
+    });
+
+    // 3) Starfield — deep space
+    this._tex('bg_starfield', S, S, (g) => {
+      g.fillStyle(0x070016, 1);
+      g.fillRect(0, 0, S, S);
+      // faint distant dust
+      const dust = [0x1a0b3a, 0x12082b];
+      for (let i = 0; i < 26; i++) {
+        g.fillStyle(Phaser.Utils.Array.GetRandom(dust), 0.5);
+        g.fillCircle(Phaser.Math.Between(0, S), Phaser.Math.Between(0, S), Phaser.Math.Between(20, 55));
+      }
+      // stars
+      const cols = [0xffffff, 0xd8b4fe, 0x93c5fd, 0xa855f7];
+      for (let i = 0; i < 150; i++) {
+        g.fillStyle(Phaser.Utils.Array.GetRandom(cols), Phaser.Math.FloatBetween(0.35, 1));
+        g.fillCircle(Phaser.Math.Between(0, S), Phaser.Math.Between(0, S), Phaser.Math.FloatBetween(0.6, 1.8));
+      }
+      // a few bright glows
+      for (let i = 0; i < 5; i++) {
+        const x = Phaser.Math.Between(0, S); const y = Phaser.Math.Between(0, S);
+        g.fillStyle(0xffffff, 0.18); g.fillCircle(x, y, 6);
+        g.fillStyle(0xffffff, 0.9); g.fillCircle(x, y, 1.6);
+      }
+    });
+
+    // 4) Synthwave — neon horizontal grid
+    this._tex('bg_synthwave', S, S, (g) => {
+      g.fillStyle(0x0a0118, 1);
+      g.fillRect(0, 0, S, S);
+      // vertical faint lines
+      g.lineStyle(1, 0x3b0764, 0.5);
+      for (let x = 0; x <= S; x += 32) { g.moveTo(x, 0); g.lineTo(x, S); }
+      g.strokePath();
+      // neon horizontal lines, alternating magenta/cyan
+      for (let y = 0; y <= S; y += 28) {
+        const cyan = (y / 28) % 2 === 0;
+        const col = cyan ? 0x00e5ff : 0xff2d95;
+        g.lineStyle(3, col, 0.10); g.beginPath(); g.moveTo(0, y); g.lineTo(S, y); g.strokePath();
+        g.lineStyle(1, col, 0.55); g.beginPath(); g.moveTo(0, y); g.lineTo(S, y); g.strokePath();
+      }
+    });
+
+    // 5) Circuit — PCB traces
+    this._tex('bg_circuit', S, S, (g) => {
+      g.fillStyle(0x04120e, 1);
+      g.fillRect(0, 0, S, S);
+      g.lineStyle(1, 0x0f766e, 0.45);
+      for (let i = 0; i <= S; i += 32) { g.moveTo(i, 0); g.lineTo(i, S); g.moveTo(0, i); g.lineTo(S, i); }
+      g.strokePath();
+      // brighter trace accents (deterministic checker -> tiles)
+      g.lineStyle(2, 0x10b981, 0.5);
+      for (let x = 0; x < S; x += 32) {
+        for (let y = 0; y < S; y += 32) {
+          if (((x / 32) + (y / 32)) % 3 === 0) { g.beginPath(); g.moveTo(x, y); g.lineTo(x + 32, y); g.strokePath(); }
+          if (((x / 32) + (y / 32)) % 4 === 0) { g.beginPath(); g.moveTo(x, y); g.lineTo(x, y + 32); g.strokePath(); }
+        }
+      }
+      // solder nodes
+      g.fillStyle(0x34d399, 0.8);
+      for (let x = 0; x <= S; x += 32) {
+        for (let y = 0; y <= S; y += 32) {
+          if (((x + y) / 32) % 2 === 0) g.fillCircle(x, y, 2);
+        }
+      }
+    });
+
+    // 6) Void — minimal dark
+    this._tex('bg_void', S, S, (g) => {
+      g.fillStyle(0x060010, 1);
+      g.fillRect(0, 0, S, S);
+      g.fillStyle(0x1b1036, 0.6);
+      for (let x = 24; x < S; x += 48) {
+        for (let y = 24; y < S; y += 48) g.fillCircle(x, y, 1);
+      }
+    });
+  }
+
+  _hex(g, cx, cy, r) {
+    g.beginPath();
+    for (let i = 0; i < 6; i++) {
+      const a = Math.PI / 180 * (60 * i - 90);
+      const px = cx + r * Math.cos(a);
+      const py = cy + r * Math.sin(a);
+      if (i === 0) g.moveTo(px, py); else g.lineTo(px, py);
+    }
+    g.closePath();
+    g.strokePath();
+  }
+
   createParticleTextures() {
     // All white so emitters can tint per-use. Keep textures tiny.
 
@@ -59,37 +199,6 @@ export class BootScene extends Scene {
   }
 
   createBackgrounds() {
-    const gridW = 512;
-    const gridH = 512;
-    const gridGraphics = this.make.graphics({ x: 0, y: 0, add: false });
-
-    // Deep purple background
-    gridGraphics.fillStyle(0x0f001f, 1);
-    gridGraphics.fillRect(0, 0, gridW, gridH);
-
-    // Grid lines
-    gridGraphics.lineStyle(1, 0x2e0059, 0.35);
-    for (let i = 0; i <= gridW; i += 32) {
-      gridGraphics.moveTo(i, 0);
-      gridGraphics.lineTo(i, gridH);
-    }
-    for (let i = 0; i <= gridH; i += 32) {
-      gridGraphics.moveTo(0, i);
-      gridGraphics.lineTo(gridW, i);
-    }
-    gridGraphics.strokePath();
-
-    // Some accent hexagons / blockchain nodes
-    gridGraphics.lineStyle(1, 0x581c87, 0.2);
-    for (let i = 0; i < 8; i++) {
-      const hx = Phaser.Math.Between(20, gridW - 20);
-      const hy = Phaser.Math.Between(20, gridH - 20);
-      const size = Phaser.Math.Between(6, 14);
-      gridGraphics.strokeCircle(hx, hy, size);
-    }
-
-    gridGraphics.generateTexture('gridBg', gridW, gridH);
-
     // Star / particle texture
     const sGfx = this.make.graphics({ x: 0, y: 0, add: false });
     sGfx.fillStyle(0xffffff, 0.9);

src/scenes/GameOverScene.js

@@ -2,6 +2,7 @@ import { Scene } from 'phaser';
 import { sound } from '../managers/SoundManager.js';
 import { createButton } from '../utils/ui.js';
 import { todaySeed } from '../utils/random.js';
+import { currentBgTexture } from '../utils/background.js';
 
 export class GameOverScene extends Scene {
   constructor() {
@@ -28,7 +29,7 @@ export class GameOverScene extends Scene {
   create() {
     const { width, height } = this.scale;
 
-    this.add.tileSprite(width / 2, height / 2, width, height, 'gridBg');
+    this.add.tileSprite(width / 2, height / 2, width, height, currentBgTexture());
 
     const naddie = this.add.image(width / 2, height * 0.22, 'player_dead').setScale(0.32);
     this.tweens.add({ targets: naddie, angle: -10, duration: 2000, yoyo: true, repeat: -1, ease: 'Sine.easeInOut' });

src/scenes/GameScene.js

@@ -10,6 +10,7 @@ import { StatsManager } from '../managers/StatsManager.js';
 import { sound } from '../managers/SoundManager.js';
 import { storage, KEYS } from '../utils/storage.js';
 import { rng } from '../utils/random.js';
+import { currentBgTexture } from '../utils/background.js';
 import { GAME_WIDTH, GAME_HEIGHT, SCORE, PHYSICS } from '../config/game.config.js';
 
 export class GameScene extends Scene {
@@ -29,7 +30,7 @@ export class GameScene extends Scene {
     // Seed gameplay RNG so a given seed produces a reproducible run (Daily).
     rng.seed(this.seed);
 
-    this.bg = this.add.tileSprite(GAME_WIDTH / 2, GAME_HEIGHT / 2, GAME_WIDTH, GAME_HEIGHT, 'gridBg')
+    this.bg = this.add.tileSprite(GAME_WIDTH / 2, GAME_HEIGHT / 2, GAME_WIDTH, GAME_HEIGHT, currentBgTexture())
       .setScrollFactor(0)
       .setDepth(-10);
 

src/scenes/MenuScene.js

@@ -6,6 +6,7 @@ import { ParticleManager } from '../managers/ParticleManager.js';
 import { createButton } from '../utils/ui.js';
 import { storage, KEYS } from '../utils/storage.js';
 import { todaySeed } from '../utils/random.js';
+import { currentBgTexture, currentBackground, setBackground, BACKGROUNDS } from '../utils/background.js';
 
 export class MenuScene extends Scene {
   constructor() {
@@ -15,7 +16,7 @@ export class MenuScene extends Scene {
   create() {
     const { width, height } = this.scale;
 
-    this.add.tileSprite(width / 2, height / 2, width, height, 'gridBg');
+    this.menuBg = this.add.tileSprite(width / 2, height / 2, width, height, currentBgTexture());
 
     this.add.text(width / 2, height * 0.16, 'NADDIE JUMP', {
       fontFamily: '"Press Start 2P", monospace',
@@ -251,15 +252,15 @@ export class MenuScene extends Scene {
 
   showSettings() {
     const { width, height } = this.scale;
-    const m = this._openModal('SETTINGS', 460);
+    const m = this._openModal('SETTINGS', 620);
     const cx = width / 2;
-    let baseY = height / 2 - 130;
+    const cy = height / 2;
 
     // Volume stepper
-    m.add(this.add.text(cx, baseY, 'VOLUME', {
+    m.add(this.add.text(cx, cy - 230, 'VOLUME', {
       fontFamily: '"Press Start 2P", monospace', fontSize: '11px', color: '#d8b4fe',
     }).setOrigin(0.5));
-    const volText = this.add.text(cx, baseY + 34, `${Math.round(sound.getVolume() * 100)}%`, {
+    const volText = this.add.text(cx, cy - 200, `${Math.round(sound.getVolume() * 100)}%`, {
       fontFamily: '"Press Start 2P", monospace', fontSize: '13px', color: '#ffd700',
     }).setOrigin(0.5);
     m.add(volText);
@@ -270,27 +271,56 @@ export class MenuScene extends Scene {
       volText.setText(`${Math.round(sound.getVolume() * 100)}%`);
       sound.click();
     };
-    m.add(createButton(this, cx - 90, baseY + 34, '-', () => stepVol(-0.1), { width: 44, height: 36, fontSize: '14px' }).bg);
+    const volMinus = createButton(this, cx - 90, cy - 200, '-', () => stepVol(-0.1), { width: 44, height: 36, fontSize: '16px' });
-    m.add(createButton(this, cx + 90, baseY + 34, '+', () => stepVol(0.1), { width: 44, height: 36, fontSize: '14px' }).bg);
+    const volPlus = createButton(this, cx + 90, cy - 200, '+', () => stepVol(0.1), { width: 44, height: 36, fontSize: '16px' });
+    m.add(volMinus.bg); m.add(volMinus.label);
+    m.add(volPlus.bg); m.add(volPlus.label);
 
     // Particle quality toggle
-    baseY += 96;
+    m.add(this.add.text(cx, cy - 150, 'PARTICLE QUALITY', {
-    m.add(this.add.text(cx, baseY, 'PARTICLE QUALITY', {
       fontFamily: '"Press Start 2P", monospace', fontSize: '11px', color: '#d8b4fe',
     }).setOrigin(0.5));
     const currentQ = () => storage.getItem(KEYS.particleQuality, ParticleManager.resolveQuality(this));
-    const qBtn = createButton(this, cx, baseY + 34, currentQ().toUpperCase(), () => {
+    const qBtn = createButton(this, cx, cy - 120, currentQ().toUpperCase(), () => {
       const next = currentQ() === 'low' ? 'high' : 'low';
       storage.setItem(KEYS.particleQuality, next);
       qBtn.label.setText(next.toUpperCase());
       sound.click();
-    }, { width: 160, height: 38, fontSize: '12px' });
+    }, { width: 160, height: 36, fontSize: '12px' });
     m.add(qBtn.bg); m.add(qBtn.label);
 
+    // Background selector with live preview
+    m.add(this.add.text(cx, cy - 72, 'BACKGROUND', {
+      fontFamily: '"Press Start 2P", monospace', fontSize: '11px', color: '#d8b4fe',
+    }).setOrigin(0.5));
+
+    let bgIndex = Math.max(0, BACKGROUNDS.findIndex((b) => b.id === currentBackground().id));
+    const preview = this.add.tileSprite(cx, cy - 8, 280, 90, BACKGROUNDS[bgIndex].texture).setDepth(102);
+    m.elements.push(preview);
+    const frame = this.add.rectangle(cx, cy - 8, 284, 94).setStrokeStyle(2, 0xa855f7);
+    m.add(frame);
+    const bgName = this.add.text(cx, cy + 58, BACKGROUNDS[bgIndex].name.toUpperCase(), {
+      fontFamily: '"Press Start 2P", monospace', fontSize: '11px', color: '#ffd700',
+    }).setOrigin(0.5);
+    m.add(bgName);
+
+    const applyBg = (dir) => {
+      bgIndex = (bgIndex + dir + BACKGROUNDS.length) % BACKGROUNDS.length;
+      const bg = BACKGROUNDS[bgIndex];
+      setBackground(bg.id);
+      preview.setTexture(bg.texture);
+      bgName.setText(bg.name.toUpperCase());
+      if (this.menuBg) this.menuBg.setTexture(bg.texture);
+      sound.click();
+    };
+    const bgPrev = createButton(this, cx - 125, cy + 58, '<', () => applyBg(-1), { width: 40, height: 36, fontSize: '16px' });
+    const bgNext = createButton(this, cx + 125, cy + 58, '>', () => applyBg(1), { width: 40, height: 36, fontSize: '16px' });
+    m.add(bgPrev.bg); m.add(bgPrev.label);
+    m.add(bgNext.bg); m.add(bgNext.label);
+
     // Reset progress (two-step confirm)
-    baseY += 96;
     let armed = false;
-    const resetBtn = createButton(this, cx, baseY + 10, 'RESET PROGRESS', () => {
+    const resetBtn = createButton(this, cx, cy + 130, 'RESET PROGRESS', () => {
       if (!armed) {
         armed = true;
         resetBtn.label.setText('TAP AGAIN!');
@@ -302,7 +332,7 @@ export class MenuScene extends Scene {
       storage.removeItem(KEYS.achievements);
       resetBtn.label.setText('DONE');
       sound.click();
-    }, { width: 240, height: 42, fontSize: '12px', bgColor: 0x581c87, hoverColor: 0x7e22ce });
+    }, { width: 240, height: 40, fontSize: '12px', bgColor: 0x581c87, hoverColor: 0x7e22ce });
     m.add(resetBtn.bg); m.add(resetBtn.label);
   }
 

src/utils/background.js

@@ -0,0 +1,17 @@
+import { storage, KEYS } from './storage.js';
+import { BACKGROUNDS, DEFAULT_BACKGROUND, getBackground } from '../config/backgrounds.js';
+
+export function currentBackground() {
+  const id = storage.getItem(KEYS.background, DEFAULT_BACKGROUND);
+  return getBackground(id);
+}
+
+export function currentBgTexture() {
+  return currentBackground().texture;
+}
+
+export function setBackground(id) {
+  storage.setItem(KEYS.background, id);
+}
+
+export { BACKGROUNDS, getBackground };

src/utils/storage.js

@@ -11,6 +11,7 @@ export const KEYS = {
   tutorialSeen: 'naddie_tutorial_seen',
   achievements: 'naddie_achievements_v1',
   particleQuality: 'naddie_particle_quality',
+  background: 'naddie_background',
   stats: 'naddie_stats_v1',
   dailyPrefix: 'naddie_daily_',
 };