Okay, let's create this cyberpunk dodge-and-shoot game using p5.js!

We'll set up the HTML file to load the p5.js library and our game script, then write the JavaScript code for the game logic, including the player, enemies, bullets, power-ups, scoring, and visual effects.

This sets up the core structure and features of the game:

1. HTML (index.html): Loads p5.js and the JavaScript files.
2. CSS (style.css): Basic styling to center the canvas and add a neon glow.
3. Main Sketch (sketch.js): Handles game states (start, playing, game over), main draw loop, spawning, collision detection, scoring, difficulty scaling, background grid, UI display, and high score persistence using localStorage.
4. Player (player.js): Manages the player hovercraft, movement, shooting, health, and power-up states (shield, overclock, speed boost) with timers.
5. Bullet (bullet.js): Defines both player bullets and enemy bullets, including their movement and appearance. Enemy bullets target the player's position at the time of firing.
6. Enemy (enemy.js): Defines enemy behavior for 'chaser' and 'shooter' types, including movement, health, points, and shooting logic for shooters.
7. PowerUp (powerup.js): Defines power-ups (shield, overclock, speed boost), their appearance, and a simple bobbing animation.
8. Particle (particle.js): Creates simple particles for visual effects like explosions and power-up collection.

You can now run this project. Use the Arrow Keys or WASD to move, and Spacebar to shoot. Try to beat your high score!

Okay, let's enhance the game with those advanced features. This will involve significant additions and modifications to the existing code structure. We'll focus on implementing the core mechanics for each feature.

Note: Implementing all these features to their full extent (especially complex AI, full customization systems, and multiple game modes) would result in a very large and complex codebase. This response will provide the foundational implementation for many of these features, focusing on integrating them into the existing structure. Some features like full Story Mode, online leaderboards, or highly complex swarm AI are beyond the scope of a single iteration but the groundwork will be laid.

We'll need new files for new entities and modify existing ones.

Key Changes and Implementations:

1. Advanced Enemy AI:
   • Enemy.js: Added steering behaviors (seek, flee, basic dodge), state machine (seeking, fleeing, positioning, shooting), and dodging logic checking playerBullets. Shooters try to maintain range and strafe.
   • StealthEnemy.js: New class inheriting from Enemy. Implements phasing (visibility toggling), different appearance, and can be a shooter variant. Doesn't take damage or collide when invisible.
   • Swarm AI: Basic implementation via occasional group spawns in sketch.js. True flocking is complex and omitted for now.
2. More Power-ups & Upgrades:
   • PowerUp.js: Added new types (emp, timeSlow, weaponUpgrade, drone) with symbols and colors.
   • sketch.js: Handles activation logic for global power-ups:
     • triggerEMP(): Clears enemies/bullets, adds shockwave.
     • activateTimeSlow()/updateTimeSlow(): Manages timeScale variable and timer. timeScale is passed to relevant update functions.
     • spawnDrone(): Creates a Drone instance.
   • Player.js:
     • Handles weaponUpgrade activation.
     • Implements startCharging(), releaseCharge(), isCharging, chargeTimer for the charge shot mechanic.
   • ChargedBullet.js: New class inheriting from Bullet for the charged shot (bigger, more damage, piercing, visual trail).
   • Drone.js & DroneBullet.js: New classes for the drone companion, which follows the player, targets enemies, and fires its own bullets.
3. Boss Mechanics:
   • Boss.js: New class with high health, phases, state machine (entering, attacking, changing_phase, defeated).
   • Phases: phaseHealthThresholds trigger changePhase().
   • Attack Patterns: attackPatterns array defines attacks per phase. executeAttackPattern manages cooldowns and triggers performAttack. Implemented basic burstFire and placeholders for others.
   • Telegraphing: Basic implementation using telegraphingAttack state and timer, changing boss glow color. Visual indicators (like lines) added as an example.
   • Destructible Parts: Added parts array conceptually, but full damage/destruction logic is complex and not fully implemented in collision/damage checks yet.
   • sketch.js: Handles boss spawning (checkBossSpawn, spawnBoss), transitions gameState to bossFight, and manages boss defeat. Added displayBossHealth.
4. Environment Interaction & Obstacles:
   • Obstacle.js: Base class for obstacles.
   • MovingBarrier.js: Subclass for horizontally moving obstacles.
   • HazardZone.js: Subclass for areas that deal damage over time but don't block.
   • sketch.js: Spawns obstacles (spawnObstacles), updates/displays them, and implements checkObstacleCollisions for interactions between player, bullets (player/enemy), enemies, and obstacles (blocking, damage). getOverlap added to Obstacle for push-back logic.
5. Customization & Progression:
   • Placeholders added in Player.js for shipType affecting stats.
   • Game Modes: currentMode variable added, but logic for different modes not implemented.
   • Perk System: Not implemented.
6. Dynamic Visual & Sound Effects:
   • Shockwave.js: New class for expanding ring effects used for EMP and power-up pickups.
   • Screen Effects: Added low health red flashing/vignette and subtle blue tint for time slow in sketch.js/applyScreenEffects.
   • Adaptive Music: Not implemented (requires careful sound library integration). Sound effect placeholders commented out.
7. Multiplayer & Leaderboards: Skipped as requested/out of scope.

This enhanced version provides a solid foundation for the requested features. You can further refine the AI, add more attack patterns, implement the customization UI, and integrate sound effects. Remember to test performance, especially with many enemies, bullets, and particles on screen.*_

Okay, let's integrate dynamic audio using Tone.js.

First, we need to add the Tone.js library to our index.html.

Then, we'll create a new file, audio.js, to manage all the sound synthesis and playback logic. Finally, we'll modify the existing game files (sketch.js, player.js, etc.) to trigger these sounds at the appropriate moments.

1. Update index.html

Add the Tone.js library script tag before your other game scripts.

Explanation:

1. index.html: Added the Tone.js CDN link and the new audio.js script tag (loaded before other scripts that might use its functions).
2. audio.js:
   • Sets up various Tone.js synths (Synth, NoiseSynth, MetalSynth, MembraneSynth) and effects (Distortion, BitCrusher) during setupAudio(). These are created once.
   • Connects all synths to a masterVolume node, which then goes to the Tone.Destination (speakers).
   • Defines specific functions (playShootSound, playEnemyHitSound, etc.) to trigger the corresponding synth with appropriate parameters (triggerAttackRelease).
   • Handles the charge sound using a separate Oscillator (chargeOsc) and Gain node (chargeGain). startChargeSound starts the oscillator, updateChargeSound ramps its frequency based on charge progress, and stopChargeSound stops it, optionally triggering the release sound.
   • Includes startAudioContext() to handle the browser's requirement for user interaction before audio can play, calling Tone.start().
3. sketch.js:
   • Calls setupAudio() in the main p5 setup() function.
   • Calls startAudioContext() in startGame() and keyPressed() to ensure the audio context is ready when the game begins or the user interacts.
   • Calls the relevant play...Sound() functions from audio.js at appropriate game events (enemy spawn, collision resulting in damage/destruction, power-up collection, game over).
   • Modified input handling (handleChargingInput, keyReleased) to better integrate with the player's charge logic.
4. player.js:
   • Calls playShootSound() when firing a normal shot.
   • Calls startChargeSound(), updateChargeSound(), and stopChargeSound() (which internally calls playChargedReleaseSound) during the charge shot process.
   • Calls playDamageSound() within takeDamage() only if health was actually lost (not blocked by shield).
   • Calls playBoostSound() when the speed boost power-up is activated.

Now, when you run the game and interact (e.g., press Enter to start), the audio context should initialize, and you'll hear the synthesized sound effects during gameplay. You can fine-tune the synth parameters in audio.js to adjust the character of each sound.*

Okay, let's troubleshoot why the game might not be showing up. This often happens due to JavaScript errors introduced in the new code, especially when integrating a new library like Tone.js.

Here are the most common causes and the fixes:

1. Audio Context Not Started: Browsers require user interaction (like a click or key press) to start the Web Audio API, which Tone.js uses. We added startAudioContext() calls, but let's ensure they are robust.
2. Errors in Audio Code (audio.js): A typo or incorrect synth definition can halt script execution.
3. Errors in Calling Audio Functions: Calling an audio function incorrectly from sketch.js or player.js can cause errors.
4. Incorrect Bullet Handling: I noticed a potential issue in how the charged bullet was handled in player.js after the audio integration. handleChargeRelease was modified but didn't correctly return the bullet to sketch.js.

Let's apply fixes focusing on points 3 and 4, as they are common integration issues, and add a more explicit way to start the audio context.

1. Fix player.js handleChargeRelease

Modify handleChargeRelease to return the bullet, similar to how shoot works.

2. Fix sketch.js keyReleased

Update keyReleased to correctly receive and add the bullet returned by player.handleChargeRelease.

3. Add Robust Audio Start

We'll add a click listener to the canvas in setup() to ensure the audio context starts even if the first interaction is a mouse click.

Here are the updated files:

Summary of Fixes:

1. player.js (handleChargeRelease): Now correctly returns the chargedBullet object (or null) instead of trying to modify a global array. It also ensures stopChargeSound is called correctly based on whether a shot was actually fired.
2. sketch.js (keyReleased): Now checks the return value of player.handleChargeRelease() and pushes the bullet to the main bullets array if one was returned.
3. sketch.js (setup): Added canvasElement.mousePressed(startAudioContext) to provide a mouse-based way to initialize the audio context.
4. sketch.js (displayStartMenu): Added a text prompt informing the user to click or press a key to enable audio.
5. audio.js: Added try...catch blocks around synth definitions and playback functions for more robust error handling. Improved the startAudioContext function to better handle different states of the AudioContext (like 'suspended') and attempt setup if it failed initially. Added checks for audioStarted before playing sounds. Corrected stopChargeSound state check.
6. player.js (takeDamage): Added a check if (this.health > 0) before applying damage and playing the sound to prevent issues if multiple hits register after health reaches zero.

With these changes, the game should be more resilient to audio initialization issues and the charged shot mechanic should work correctly with sound. Check the browser's developer console (usually F12) again if the game still doesn't appear; any remaining errors should be reported there.

Okay, a black screen usually indicates a critical JavaScript error occurring very early, possibly during the setup() function or even before the first draw() call, preventing p5.js from rendering anything.

Let's try the following steps to isolate and fix this:

1. Simplify Audio Initialization: The interaction with Tone.start() and the p5.js setup can be tricky. We'll simplify the startAudioContext function and ensure setupAudio is only called after the audio context is confirmed running.
2. Add Basic Background in setup: Draw a simple background color in setup right after createCanvas to verify the canvas itself is working.
3. Error Check setupAudio: Add a flag to prevent repeated calls if it fails.

Here are the refined sketch.js and audio.js:

Key Changes:

1. audio.js (setupAudio): Now checks audioStarted flag and Tone context state before attempting to create synths. Returns true/false indicating success/failure. Synth variables are declared but not initialized globally.
2. audio.js (startAudioContextOnce): Simplified function that calls Tone.start() only once. Crucially, it now calls setupAudio() after Tone.start() successfully resolves its promise.
3. sketch.js (setup):
   • Draws an initial background immediately after createCanvas.
   • Attaches event listeners (mousePressed, keydown) with { once: true } to call startAudioContextOnce.
   • Does not call setupAudio() directly anymore.
   • Includes a try...catch around player creation as another potential failure point.
4. sketch.js (draw): Added a check at the beginning to see if player exists. If not, it displays an error message and stops drawing, which might explain a black screen if setup failed.
5. sketch.js (keyPressed): Removed the direct call to startAudioContextOnce as it's handled by the event listeners now. It still calls startGame on Enter.
6. sketch.js (displayStartMenu): Updated the audio status message based on audioStarted and isAudioSetup flags.

Now, when the page loads, you should see the dark purple background drawn in setup. The game won't fully start, and audio won't initialize until you click the canvas or press a key. This isolates the potentially problematic audio initialization until after the user interacts and the basic canvas is confirmed working.

Check the developer console carefully for any errors during setup or after you interact.

Okay, this is frustrating. A persistent black screen after trying those fixes strongly suggests a fundamental JavaScript error is halting execution before p5.js can even draw the first frame, or perhaps an issue with the p5.js setup itself.

Let's strip things down drastically to isolate the problem. We will:

1. Remove Tone.js Completely: Comment out the library and all related code.
2. Simplify setup(): Only include createCanvas and background.
3. Simplify draw(): Only include background.
4. Add Error Catching: Wrap setup and draw in try...catch blocks to display errors directly on the screen if possible.

This will tell us if the absolute basic p5.js structure is working in your environment.

What to Expect:

• You should see a dark red background initially (from setup), quickly replaced by a dark green background (from draw).
• If you still see a black screen, there's a very fundamental issue. Check the browser's developer console (F12). There must be an error message there explaining why even this minimal code isn't running. Look for:
  • SyntaxError: A typo in the code.
  • ReferenceError: Trying to use something that doesn't exist (less likely in this minimal version).
  • Errors related to createCanvas or WebGL context creation.
  • Any errors mentioning p5.js itself.
• If you see the dark green screen, then the basic p5.js setup is working. The problem lies in one of the other game script files or their interactions. We can then start adding them back one by one.

Please report exactly what you see and any messages from the developer console.*

Okay, that's excellent progress! Seeing the green background and the CSS glow means:

1. HTML/CSS are fine.
2. p5.js library is loading.
3. createCanvas() is working.
4. The basic setup() and draw() loop is running without critical errors.

The black screen was definitely caused by an error within the more complex game code (player, enemies, bullets, audio integration, etc.) that we previously removed.

Next Step: Reintroduce Core Game Logic (No Audio Yet)

Let's add back the essential game elements but keep all audio-related code commented out for now.

1. Uncomment the core script tags in index.html.
2. Restore the basic game structure in sketch.js (creating the player, calling runGame, basic updates, and drawing).
3. Ensure all play...Sound() calls and Tone.js related functions (setupAudio, startAudioContextOnce) remain commented out or removed in sketch.js and player.js.

After applying this:

1. Run the code.
2. You should see the start menu ("CYBERPUNK SHOOTER", etc.) over the dark blue background grid.
3. Press Enter.
4. You should see the player ship appear at the bottom, and enemies should start spawning from the top. You should be able to move and shoot (silently).

Report back:

• Does the start menu appear?
• Does the game start when you press Enter? Can you see the player and enemies?
• Are there any errors in the developer console now?

If this works, the problem is definitely related to the audio integration. If it still shows a black screen, the error is likely within one of the core game logic files (player.js, enemy.js, bullet.js, etc.) or how they are being used in sketch.js.*

Okay, the error ReferenceError: bullet is not defined points directly to the problem. It means that in the checkCollisions function, specifically within the loop that checks for collisions between player bullets and enemies, the code is trying to use a variable named bullet that hasn't been properly declared or assigned in that scope.

This most likely happened when we were commenting out/removing code in the previous steps. Let's fix the checkCollisions function in sketch.js to correctly declare the bullet variable within its loop.

Explanation of the Fix:

Inside the checkCollisions function, within the first for loop (for (let i = bullets.length - 1; i >= 0; i--)), I've explicitly added:

javascript let bullet = bullets[i]; if (!bullet) continue;

This ensures that for each iteration i, we get the bullet at that index and store it in the bullet variable before entering the inner loop (for (let j = ...)). The if (!bullet) continue; is a safety check in case something unexpected happens to the array.

I also added similar declarations and checks for enemy and enemyBullet in their respective loops for robustness.

Now, run this version. It should correctly handle the bullet-enemy collisions without the ReferenceError and display the core game loop.