feat: Enhanced Edition: Major Gameplay, Visual, and Performance Upgrades (#170)

[Pramod-Munnoli]

🌑 Shadow Collector - Enhanced Edition

Issue: #170
Branch: feature/issue-170-enhanced-edition
Commit Title: feat: Enhanced Edition: Major Gameplay, Visual, and Performance Upgrades (#170)

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🎮 Overview

Shadow Collector - Enhanced Edition delivers an upgraded gameplay experience featuring smarter AI, dynamic lighting, randomized levels, and mobile-friendly controls — all optimized for smooth performance and immersive visuals.

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🚀 Core Features Implemented

⚙️ Core Gameplay

• Top-down Movement: Supports WASD/Arrow keys + on-screen joystick for mobile users.
• Light/Dark System: Real-time lighting that changes as orbs are collected.
• Enemy AI: Smart patrol and chase mechanics when detecting the player.
• Stealth Mechanic: Hold Shift (desktop) or tap Hide (mobile) to disappear into shadows.
• Collision Detection: Improved precision for player–enemy and wall interactions.

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⚡ Enhanced Movement

• Player Speed: Increased from 3 → 4 (+33%)
• Enemy Speed: Increased from 1.5 → 2 (+33%)
• Dynamic Orbs: Orbs now move slowly around the map as dynamic targets.
• Speed Progression: Both player and enemies scale speed as the score increases.

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🧩 Randomized Level Generation

• Dynamic Levels: New levels generate automatically every 10 points.
• Progressive Difficulty:
  • More enemies spawn at higher levels.
  • Wall count increases (up to 15 walls) forming maze-like structures.
  • Special purple orbs (worth 3 points) appear at advanced levels.

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💎 Premium Features

• Statistics System: Tracks gameplay data using localStorage for persistence.
• Power-Up System: Adds a timed Light Burst ability with cooldown management.
• Visual Effects: Particle bursts, pulsing lights, and color transitions enhance feedback.
• Level Indicator: Animated numbers display on each new level-up event.

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🎨 Visual Enhancements

• Color Progression: Player and enemies shift hues as difficulty rises.
• Dynamic Lighting: Real-time shadows and glow effects using radial gradients.
• Particle Effects: Triggered during orb collection and power-up activation.
• Level Indicator Animation: Smooth, large-scale transition between levels.

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📸 Screenshots

🕹️ Game Preview	💀 Game Over	📊 Statistics

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🧪 Testing

• Verified on desktop (Chrome, Firefox, Edge) and mobile (Android) browsers.
• Confirmed responsive canvas rendering and consistent gameplay performance.
• Validated statistics persistence, level transitions, and power-up cooldown logic.

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🧩 Linked Issue

Closes #170

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