UNDERRUN

CONTROLS: - Desktop: - W / Up Arrow: Move player character up/forward - S / Down Arrow: Move player character down/backward - A / Left Arrow: Move player character left - D / Right Arrow: Move player character right - Mouse Movement: Aim weapon toward cursor position - Left Mouse Button / Click and Hold: Fire weapon / Shoot - Click: Start game / Initiate deployment (from intro screen) - Mobile/Tablet: - (No explicit touch controls found in code - game designed primarily for desktop with keyboard and mouse) BASIC MECHANICS: 1. Player Movement: - Use WASD or arrow keys to move your character in all directions - Movement is physics-based with momentum and friction - Character moves smoothly across the facility floor - Camera follows player position with smooth interpolation 2. Combat System: - Mouse cursor determines firing direction - aim by moving mouse - Hold left mouse button to continuously fire projectiles - Projectiles travel at fixed speed in the direction you're aiming - Bullets damage enemies on contact - Player has limited health - taking damage reduces health points 3. Enemy Types: - Chasing Enemies: Zombie-like creatures that pursue and attack the player when nearby. They move toward your position and can damage you on contact. - Shooting Enemies: Enemy units that fire projectiles at the player from a distance. They track your position and shoot when you're within range (less than 48 units away). - Both enemy types must be destroyed or avoided to survive 4. System Terminals: - Glowing terminal stations are scattered throughout the facility - These represent offline systems that need to be rebooted - Approach and touch a terminal with your player character to reboot it - Each reboot displays a success message and progress counter - Multiple terminals must be rebooted in each facility area 5. Level Progression: - Each facility area contains a set number of offline systems (terminals) - Scan for offline systems upon entering a new area - Reboot all systems in an area to progress - When all systems are online, the game triangulates position for the next "jump" - Jump to the next facility area automatically - Multiple areas must be cleared to complete the mission 6. Health and Survival: - Player starts with health points (visible as health bars) - Taking damage from enemies or their projectiles reduces health - Health pickups may spawn randomly - collect them to restore health - If health reaches zero, deployment fails and game restores backup - Game over triggers when player dies - restart after delay 7. Camera System: - Top-down view of the facility - Camera smoothly follows player movement - Camera position interpolates toward player position - Screen shake effects occur during explosions and impacts - Fixed camera angle provides clear view of action 8. Visual Effects: - Pixelated low-resolution graphics (320x180 rendered resolution) - Particle effects for explosions, impacts, and weapon fire - Lighting effects create atmospheric facility ambiance - Color-coded visual feedback for different elements - Retro aesthetic with modern WebGL rendering 9. Story and Narrative: - Opening sequence sets the story: Date September 13, 2718 - Critical software failure detected due to buffer underrun - Satellite communication (SATCOM) R.U.D. (Rapid Unplanned Disassembly) - Affected systems: AI, radiation shields, power management - Automated reboot attempts have failed - Manual intervention required - player is the deployed solution 10. Facility Layout: - Grid-based facility design - Walls and obstacles create maze-like navigation - Open areas allow for combat and movement - Terminal locations are fixed in each area - Enemy spawn points distributed throughout facility 11. Weapon Mechanics: - Automatic firing when mouse button is held - Firing rate limited by cooldown timer - Projectiles travel straight in aimed direction - Bullets can hit multiple enemies in their path - Visual trail effects show projectile movement 12. Enemy Behavior: - Chasing enemies pathfind toward player when within 64 units - Shooting enemies track player and fire when within 48 units - Enemies have their own health and take damage from bullets - Enemy projectiles can be avoided through movement - Different enemy types require different combat strategies 13. Collision System: - Grid-based collision detection for walls and obstacles - Entity-to-entity collision for enemies and player - Bullet-to-enemy collision for combat - Collision boundaries prevent passing through solid objects - Smooth collision response prevents clipping 14. Audio System: - Procedurally generated sound effects - Weapon fire sounds - Impact and explosion audio - System reboot confirmation sounds - Environmental audio creates atmosphere 15. Game States: - Intro sequence with scrolling text - Main gameplay state with active combat - System reboot sequence - Area transition (jumping between facilities) - Game over state with backup restoration message - Victory/ending sequence when all areas completed STRATEGIC TIPS: - Terminal Prioritization: Focus on rebooting terminals as quickly as possible. The faster you restore systems, the sooner you can move to the next area. However, clear enemies around terminals first to avoid taking damage during reboot. - Movement Efficiency: Keep moving constantly. Stationary players are easy targets for shooting enemies. Use strafing patterns to make yourself harder to hit while maintaining offensive capability. - Enemy Management: Destroy chasing enemies first - they can quickly overwhelm you at close range. Then deal with shooting enemies from a safe distance before they can set up their attacks. - Health Conservation: Avoid unnecessary damage. Health is limited, and pickups may be rare. Prioritize defensive movement over aggressive rushing when health is low. - Cover Usage: Use walls and obstacles to block enemy projectiles. Peek out to shoot, then retreat behind cover to avoid return fire. - Crowd Control: Don't let enemies surround you. Kite them into chokepoints where you can deal with fewer enemies at a time. - Terminal Approach: Before touching a terminal, clear the area of enemies. Being interrupted during a reboot attempt wastes time and risks damage. - Bullet Conservation: While ammo appears unlimited, firing constantly reveals your position. Consider brief pauses to assess the situation and plan your next move. - Map Awareness: Pay attention to terminal locations as you explore. Plan efficient routes that minimize backtracking and enemy encounters. - Safe Zones: After clearing enemies from an area, that area becomes relatively safe. Use these zones as fallback positions if overwhelmed. ADVANCED TECHNIQUES: - Kiting Strategy: Lure enemies into following you, then turn and fire. This groups enemies for easier elimination and maintains distance from threats. - Predictive Shooting: Lead your shots on moving targets. Aim where enemies will be, not where they currently are, especially for fast-moving chasers. - Strafing Combat: Move perpendicular to enemy positions while firing. This makes you a harder target while maintaining offensive pressure. - Terminal Rush: In areas with multiple terminals, plan a route that hits terminals in quick succession. Clear enemies along the path first, then execute rapid reboots. - Choke Point Control: Force enemies into narrow passages where they can't surround you. This limits the number of enemies that can attack simultaneously. - Hit and Run: Make quick attacks on groups of enemies, then retreat to safety. Repeat until the threat is eliminated. - Camera Prediction: Learn to predict camera movement for better positioning. The camera interpolation can help you anticipate enemy positions. - Resource Management: Balance between aggressive terminal rebooting and careful enemy elimination. Sometimes it's better to be safe than fast. - Pattern Recognition: Learn enemy spawn patterns and common terminal locations. This helps you navigate more efficiently in later areas. - Combo Clearing: Destroy multiple enemies in quick succession by positioning yourself where multiple enemies converge, allowing efficient multi-kills. WINNING AND PROGRESSION: - Primary Objective: Reboot all offline systems in each facility area. The game tracks how many systems remain offline with progress messages. - Area Completion: When all systems in an area are rebooted, you receive a confirmation message. The game then triangulates position for the next jump location. - Multi-Area Mission: Progress through multiple facility areas. Each area has its own set of systems to reboot and enemies to defeat. - Final Victory: Complete all areas to finish the mission. The ending sequence thanks you for playing and ends the transmission. - Survival Challenge: The main challenge is surviving long enough to reboot all systems. Each death forces a restart from backup, requiring you to begin the area again. - Score and Achievements: While not explicitly tracked in visible UI, the game internally tracks progression through areas and successful system reboots. - Mastery Goals: Aim to complete runs with minimal deaths, faster completion times, and efficient terminal rebooting. Develop strategies that minimize risk while maximizing speed. - Endurance Play: The game offers multiple areas to clear, providing extended gameplay as you work through the entire facility restoration mission. - Adaptive Difficulty: As you progress through areas, enemy placement and system layouts change, requiring adaptation of strategies and maintaining engagement. Enjoy navigating the dark facilities and restoring critical systems in this retro-futuristic top-down shooter!