Top-down alien shooter · gpt-oss-safeguard-20b

We need to build index.html using Phaser library. We have file phaser.min.js in current directory. We need to write index.html with script tags loading that.

We need to create a simple top-down shooter. Use Phaser 3? phaser.min.js likely Phaser 3. We'll use 3. Use scene config, preload empty, create with graphics. Create player as circle, enemies as squares or circles.

Implement controls: WASD for movement, pointer to aim; left click to fire. Show UI texts.

Implement simple physics: Use arcade physics? Use simple movement with velocity set.

Shots: use group, with velocity from player to pointer.

Alien enemies: spawn in waves, each wave increase count or speed.

Health and score displayed.

Game over state with restart.

We'll need to use HTML canvas.

We'll create index.html with style: full-screen.

Add CSS for text.

Implement code.

Need to test: We'll use browser tool to load index.html. We can inspect initial output.

Let's write file.

We need to create index.html. Use <script src="phaser.min.js"></script> then inline script.

We'll use Phaser 3's scene. Use width 800 height 600.

Implement Player class? Use physics.

Simpler: In create, create player sprite as graphics or as shape using add.rectangle? But we need physics. We'll use this.physics.add.sprite with a generated texture from graphics. Let's create playerTexture via this.make.graphics to draw circle, get texture.

Similarly for alien and bullet.

Simplify: create a function makeCircleTexture(name, color, radius).

Also create makeRectangleTexture for aliens.

Shots: bulletTexture.

Game logic:

Variables: health, score, wave.

Use text objects.

Add input.keyboard for WASD. Add pointer events for fire.

When left mouse button down, shoot.

Shots: bullets group with physics, lifespan.

Collision: bullets with enemies, enemies with player.

Score increased per enemy killed.

Wave: keep enemy count; when none left, increment wave and spawn new.

Increase speed or count: increase enemyCount = 5 * wave, speed 100+wave*10.

Health: player initial 3; damage on contact reduces; game over if zero.

Game over screen: overlay text "Game Over" and button to restart.

Restart: reset values, remove all enemies, bullets, and spawn wave 1.

Add UI texts update.

Need to test movement: use WASD to move, pointer to aim.

Implementation details: pointer movement for aim: set player rotation to angle between player and pointer.

Shooting: create bullet at player.x,y, set velocity using pointer.

Implement collision: this.physics.add.overlap(bullets, enemies, bulletHitsEnemy)

Also enemy collides with player.

Define bullet lifespan: destroy after offscreen.

Implement bullet speed 400.

Add simple visual feedback: on hit create small explosion with graphics or just remove.

Game loop: no special.

Implement CSS to position canvas? We'll set body margin:0; overflow:hidden.

Let's write file content. We'll use write tool.

Then we need to run browser to check.

Let's proceed.

Need to ensure Phaser usage: loading from makeTexture returns base64 images. But we used this.load.image('player', makeTextureCircle('#00f',20)); However load.image expects key and url; passing dataURL should work but must be string. However makeTextureCircle returns dataURL. But we use this.load.image in preload; but the function makeTextureCircle defined later, cannot be used before defined? In JS, function declarations are hoisted, but makeTextureCircle defined after. It's okay.

However, in preload, we call this.load.image('player', makeTextureCircle(...)); This will create an image each preload call but we may need to ensure not heavy. But okay.

Potential errors: this.physics.moveToObject will set velocity but also may not keep moving if player moves? Actually moveToObject will set velocity towards target at given speed at start and may not update if player moves. But we want continuous chase. Could use in update loop. But for simple.

Also bullet setAngularVelocity not needed.

Game over: this.scene.pause(); but within global functions not bound. gameOver defined inside create context? Actually gameOver is global; but inside gameOver we refer to this.scene.pause() but 'this' not defined. Need to get scene reference. We can store 'scene' variable. Or inside gameOver, we can call game.scene.scenes[0].pause() but easier to pass scene via arrow? Instead, we can attach functions to the scene. In create, we could attach to this. But easier: declare 'currentScene' variable to refer to this. But we used global functions and 'this' ambiguous. For example, update uses this physics etc. But we defined functions not methods. In create, 'this' is scene. But functions defined as plain functions; when called in callbacks with .bind(this) maybe? We used this.input.on('pointerdown', fire, this); So fire called with this bound to scene. That is fine. Similarly, pointerMove bound. However gameOver called from playerHitEnemy; there we call gameOver(); inside that function 'this' not bound. So need to get scene reference. Could use 'this.scene' inside global? Not defined.

We can change gameOver to take scene param: function gameOver(scene) { scene.scene.pause(); ... } But we call gameOver() with no args. Instead inside playerHitEnemy, we could call this.scene.pause() but 'this' is scene. But we defined playerHitEnemy with parameters (playerObj, enemy). In that function, 'this' refers to scene? Because added as callback via this.physics.add.overlap? The callback will be executed with default context? By default, it is scene? According to Phaser docs, callback is called with the scene as context. So 'this' inside playerHitEnemy should be scene. So we can use this.scene.pause(); But we used function playerHitEnemy(playerObj, enemy){ ... if(health <=0){ gameOver(); } } and inside gameOver we use this.scene.pause() but this refers to global. So gameOver needs scene. We'll modify gameOver to accept scene param or use global game variable. Could use game.scene.scenes[0].pause() but easier to pass scene: in playerHitEnemy, call gameOver.call(this); Then gameOver defined using this. Let's modify.

Also restart function uses this.scene.restart(); same context issue. We'll modify accordingly.

Also spawnWave uses this.physics move; but this is not bound because spawnWave called from create without binding. In create we call spawnWave(); but spawnWave refers to this? It's global function; inside spawnWave 'this' will be undefined. We used this.physics.moveToObject enemy, player. So need to either pass scene. Simplest: define spawnWave within create? But we want separate function. Let's modify to use game.scene.scenes[0]? Let's instead store scene variable: let currentScene; in create set currentScene=this. Then use that in spawnWave etc.

Let's edit index.html to adjust.

Also need to update wave progression: after clearing all enemies, increase wave, spawn new.

Add check: this.physics.world.on('collide', maybe? We can add timer to check. After each enemy hit, check if enemies count zero then increase wave. We'll add in bulletHitEnemy and playerHitEnemy after destroy? But playerHitEnemy not affect wave. In update, after bullets, check enemies.countActive() etc. In update maybe:

if(enemies.countActive()===0){ wave++; spawnWave(); }

Let's modify.

Also need to display health, score, wave at start.

Also ensure bullet size: we use dataURL circle.

Also need to ensure pointerMove rotates player.

Also ensure bullet lifespan: maybe destroy after out of bounds? Not necessary.

Let's edit index.html.

Also check CSS for pointer.

Also fix missing semicolons etc.

Let's create edit calls.

We need to ensure gameOver and restart functions refer to scene correctly. We replaced this with currentScene? But we didn't define currentScene variable. Need to set currentScene = this in create? Actually we can use function with scope of scene. Instead simpler: keep this referencing scene by using function as method? We can keep gameOver and restart as functions in scene context? They are defined in global scope. In create, we could store `scene` variable. Let's modify to use `currentScene` global set in create. Also fix restart: use this? Let's adjust. Also need to spawn wave after restart.

Also we should update spawnWave to use this (scene). The current spawnWave uses this. After restart we need to call spawnWave again. In restart function, we could call scene.restart() which restarts whole scene including create.

But we need currentScene variable accessible. We'll set in create: `var currentScene = this;` but must be global variable. So define `var currentScene;` at top. Then in create assign.

Also need to ensure wave increments after each cleared wave. Currently we didn't increase wave anywhere. Need to check when all enemies destroyed, increment wave and spawn new wave. Add check in update to see if enemies count 0 then wave++ and spawnWave. Also maybe add enemy speed.

Also bullets need to be removed when out of bounds. Also enemies move each frame? We set moveToObject but may not update speed after wave increments. Also player aims but rotation set. Good.

Also we need to ensure bullet damage, but we also want visual feedback. Already bullet destroys enemy.

Add enemy collisions? We did.

Also need to ensure gameOver stops physics.

Also need to add controls display: already present.

Also need to include wave increment when wave cleared.

Let's edit index.html accordingly. Also fix currentScene global. Also add cleanup for bullets outside world bounds: add `bullets.children.each(b=>{ if(!b.active)})?` But easier to set bullet lifetime.

Phaser can set `bullet.setCollideWorldBounds(true); bullet.outOfBoundsKill=true;` But in Arcade physics we can set `setCollideWorldBounds` and `setDamping?` We can use `bullet.setBounce(1);` but better to destroy when out of bounds: add a callback on update.

Simpler: use `this.physics.world.on('worldbounds', (body)=>{ if(body.gameObject.texture.key==='bullet') body.gameObject.destroy(); });` But set `bullet.setCollideWorldBounds(true); bullet.body.onWorldBounds=true;`.

Add in fire function.

Also we need to set pointer to worldX, worldY; we used pointer.worldX which is correct.

Now modify file.

We wrote index.html but there may be issues: the preload uses load.image with data URLs but using makeTextureCircle returns string dataURL. However Phaser load.image expects key and url. That works.

But we used 'this.physics.moveToObject' inside spawnWave; but we used 'this' inside create? In spawnWave defined as function spawnWave(){ ... this.physics.moveToObject ... } but spawnWave is called within create context? In create, we call spawnWave(); but inside spawnWave, 'this' is undefined if called as plain function. Need to use arrow or pass context. Instead, we can define spawnWave with this? Could use let that is bound by create? But easier: modify spawnWave to accept scene param or use global 'currentScene' defined earlier and set to this in create.

We added currentScene variable but didn't set it. Need to set currentScene = this in create.

Also need to manage wave increment after all enemies destroyed: we need to check when enemies group empty then wave++ and spawn new wave.

Add update to check: if enemies.countActive() === 0 { wave++; spawnWave(); }.

Also we need to handle bullets out of bounds? Not necessary.

Also we need to set enemy velocity to chase player each frame? We used physics.moveToObject once at spawn; but as player moves, enemy may not adjust. Might be fine but they might stop at player? physics.moveToObject sets velocity to move directly towards target at a certain speed but after reaching, it may stop? Actually moveToObject sets velocity and doesn't update. To continuously follow, we might need to adjust each frame. We can simply set velocity each frame based on current position.

Simpler: in update, for each enemy, set velocity towards player with speed setData('speed').

Add in update: enemies.children.iterate((enemy)=>{ if(enemy.active) this.physics.moveToObject(enemy, player, enemy.getData('speed')); });

Also need to ensure enemies collide with world bounds? We set false.

Also need to show bullets. Need to have bullet collision with world bounds removal. We can set bullet.setCollideWorldBounds(true) and destroy on out-of-bounds via setDead? Add event: bullets.on('worldbounds', ...). But for simplicity we can add bullet body.setCollideWorldBounds(true); bullet.body.onWorldBounds = true; but need to set physics world to have bounds? Already world bounds exist. But bullet might exit and still be there. But fine.

Also we must set bullet angle? Not necessary.

Also need to set bullet's rotation? Not needed.

Also we need to update UI and wave after each wave. Also need to handle restarts properly.

Also we must fix 'restart' calling this inside event listener but we changed to call this? We replaced restart function but we also changed gameOver to use currentScene. In event listener we call restart.call(this). That will still use this context as window? We might pass currentScene? We can modify restart button handler to use restart() without .call. Since restart uses currentScene variable we can just call restart(). So modify.

Also need to ensure that restart resets currentScene? restart() calls currentScene.scene.restart(); which will reinitialize.

But we also need to update 'this' references in other functions using this. Eg, in create, we use 'this' for physics, etc. That's okay. In gameOver and restart we use currentScene variable.

Need to set currentScene = this in create.

Also bullet and enemy groups may need to set collision detection for enemy and player. In create we already did.

We also need to detect when wave cleared. Add in update after movement: if(enemies.countActive()===0 && !waveCleared) maybe but easier: if enemies.countActive()===0 and not currently spawning? But after wave cleared, we spawn new wave and increment wave. But we need to avoid repeated increments each frame. So after we spawn new wave we can check again. So implement:

if(enemies.countActive()===0){ wave++; spawnWave(); }

But this will spawn infinite waves because after spawnWave, enemies count > 0; but next frame if count is 0 again? No.

We also need to maybe show wave text updated after spawn.

Also we need to handle enemy speed increase each wave.

Also we need to check bullet collision with enemy.

Also need to add 'enemy' damage to player on contact.

Also maybe set bullet lifespan? Not necessary.

Also need to handle boundary of world: world size is 800x600; set world bounds? default is size of game canvas.

Let's edit index.html accordingly.

We changed gameOver functions to use currentScene. Need to adjust rest of code where 'this' context might fail. In restart, this may not refer to scene; we use currentScene.scene.restart(); we added currentScene global. In bulletHitEnemy, playerHitEnemy, etc no issue.

Also we used spawnWave with this; but inside spawnWave we refer to this. That function defined later; it uses this.physics etc. It will be called with context of scene? In create we call spawnWave(); within that function, 'this' refers to global? We defined spawnWave as function spawnWave(){...} not arrow. Inside it uses this, but not bound to scene unless called with this? In create, we call spawnWave(); but 'this' inside spawnWave refers to global? Since spawnWave is not arrow, it will use lexical 'this' from where it's defined? Actually it's a function declaration, so 'this' inside will be whatever calling context. When called without binding, 'this' will be global or undefined in strict mode. In our code, we call spawnWave(); inside create, which has this bound to scene. But calling spawnWave() without this argument will not preserve context. We need to bind or pass scene. So modify spawnWave to accept scene param or use this within create by using this.spawnWave? easiest: change spawnWave definition to accept a scene param or use the global currentScene.

Simplest: replace spawnWave call with currentScene.spawnWave? but we defined spawnWave global; we can modify to function spawnWave(scene){ ... } and call scene? But many references inside use this. Let's modify spawnWave to use currentScene variable. Also update function references that use this. Let's edit spawnWave accordingly.

Also we need to generate enemies moving towards player each frame? We use this.physics.moveToObject inside spawnWave but only once; will not update movement as player moves. We need to set velocity to moveToObject each frame maybe by updating each enemy's velocity in update loop. Let's add in update: enemies.children.iterate(e=>{ if(e){ this.physics.moveToObject(e, player, e.getData('speed')); } }); But that may override bullet collisions? We'll do.

Also we need to increase wave after clear: need to check when enemies empty. In update check if enemies.countActive(false)==0? We should use enemies.countActive(true). Let's add after movement check if enemies.countActive(true)==0 then wave++ and spawnWave again.

Also we must handle bullet out of bounds? Not necessary for now.

Also need to add boundaries for bullets removal; not essential.

Also need to adjust bullet speed to constant.

Also need to ensure controls displayed. Already.

Also ensure that reload? We'll test.

Also we need to make the alien texture; we used makeTextureRect for alien 30x30. good.

But we also need to generate health, etc.

Also we need to ensure player sprite rotation with pointer move; we used pointermove.

Also we must add an indicator for bullet? Already.

Also we may need to set bullet setCollideWorldBounds false and destroy on out.

Also we need to increase speed by wave; we set speed.

Let's adjust code.

Also ensure that the restart button event uses correct scope. We used restart.call(this) but inside closure 'this' refers to global? In addEventListener, this refers to element, not scene. restart uses currentScene variable; fine.

Let's patch spawnWave and update loop. Also add detection of wave completion.

Also need to set enemy collision with world bounds? not necessary.

Also we used enemies.clear(true,true); good.

Let's edit file accordingly.

We made edits but didn't handle wave progression after all enemies killed. Also we used this physics moveToObject once but we removed in spawnWave after change. We need to keep movement of enemies. Also need to handle wave increment when all enemies destroyed. Also ensure bullets have lifespan maybe destroy off-screen. Also we used this physics moveToObject but removed. We should maybe in update or create loop have enemies move toward player each frame. We'll set velocity each frame.

Also we used this to call currentScene? but in functions, we referenced currentScene but not defined until create. we defined let currentScene. OK.

Need to handle spawnWave after kill all? Could check in update: if enemies.countActive(false)==0 then wave++ spawnWave.

Also bullet hit enemy should show feedback maybe small flash? But optional.

Also gameOver currently uses currentScene.scene.pause(); but that might need to refer to scene variable. Should be currentScene.scene.pause() fine.

restart uses currentScene.scene.restart(); but also need to reset health etc. After restart we should call spawnWave again? restart will restart scene so create again resets. So ok.

Need to fix pointer movement and aiming: setRotation based on pointer world. But we used setRotation angle; ok.

Also we need to set bullet to auto-destroy when leaving bounds. We can set bullets group with setCollideWorldBounds false and set killWhenOutOfBounds? easier: bullets.setCollideWorldBounds(true); bullets.setOutOfBoundsKill(true); but we used Image class maybe.

Let's modify bullets group: this.physics.add.group({classType:Phaser.Physics.Arcade.Image, runChildUpdate:true, allowGravity:false, collideWorldBounds:true}); But we cannot set killWhenOutOfBounds? In Phaser 3, to kill, use bullets.setCollideWorldBounds(true); bullets.setOutOfBoundsKill(true);

Let's update.

Also we need to create texture for player circle but we used makeTextureCircle to produce dataURL but we must register as image via this.load.image('player', makeTextureCircle(...)); However load.image expects URL; we used makeTextureCircle returns dataURL. That's okay.

But we used 'phaser.min.js' loaded; no path? In file, script src="phaser.min.js". Should be present.

Need to verify that makeTextureCircle etc defined before preloaded? Preload uses them. They need to be defined globally before calling. In script we defined functions after scene functions; but preloading called at runtime after script defined. Functions defined later still available. Good.

But we removed physics.moveToObject call; we need to add movement each frame: In update, after player movement, iterate over enemies and set velocity toward player.

Let's add that.

Also we need to increment wave after clearing. We'll add check in update: if enemies.countActive()===0 && !waveCleared? but after spawnWave we need to track if wave cleared. Simplest: if enemies.countActive(false)==0 then wave++ spawnWave(); but could happen immediately after spawn because enemies not yet? but after spawnWave, enemies count >0.

Add to update.

Also adjust spawnWave to set velocity for each enemy towards player each time; but after spawn we could set initial velocity. But if player moves, we want enemies to chase constantly. We'll in update: enemies.children.iterate(e=>{if(e){ e.body.setVelocity( ...);}}). But may override bullet velocities? only enemies.

Let's implement: In update, for each enemy: let angle = Phaser.Math.Angle.Between(enemy.x,enemy.y,player.x,player.y); this.physics.velocityFromRotation(angle, enemy.getData('speed'), enemy.body.velocity);

Also need to set speed for each enemy. Already set.

Add bullet auto-destroy: bullets.setCollideWorldBounds(true); bullets.setOutOfBoundsKill(true); but set in create.

Let's modify create accordingly.

Also adjust restart: call this.scene.restart() inside currentScene? Actually inside restart we used currentScene.scene.restart(); but this refers to global? In function restart we are not inside scene context. We used arrow? Actually we defined function restart() {}. We call document.getElementById('restartBtn').addEventListener('click', ()=>{restart.call(this)}); That passes this from outside? The click handler 'this' refers to element? We used .call(this) but that 'this' is button? That is wrong. We should call restart() directly without .call? But we need to use currentScene variable to restart. In restart function we use currentScene.scene.restart(); So we don't need 'this'. We can just call restart();. So modify addEventListener to restart();. Also need to ensure restart sets visibility hidden before restart? but restart will hide and then scene restart resets UI etc.

Also we need to handle game over: After health<=0 we call gameOver(); but this uses currentScene.scene.pause(); that's fine. But also need to pause enemies? pause will pause all physics? Should be fine.

Let's patch.

Also we need to ensure enemy collision with player handled.

Also we need to update wave when all enemies cleared: maybe after bulletHitEnemy or playerHitEnemy we check if enemies.countActive(false)===0; then wave++ spawnWave(); but we should also maybe increase difficulty.

Also after restart, need to reset currentScene? scene restart will call create again, sets currentScene = this. good.

Also we might need to add health display and maybe max health. Already.

Let's patch updates.

We updated but some functions may use this in spawnWave we removed physics.moveToObject. Instead in update we set velocity each frame. Good. Need to ensure enemies are moving. Also bullet collision to enemy: we need to also stop bullet when offworld? Not necessary.

Need to add logic for bullet life? Not necessary.

Also need to show game over text and restart: restart calls this.scene.restart() but we changed currentScene variable; we use currentScene.scene.restart(). In restart we call restart.call(this) earlier but we changed to use currentScene. In event listener we used restart.call(this). That may refer to window context? Let's modify event listener to use restart directly. But restart function uses currentScene variable. We might call restart() directly. Let's edit.

Also need to ensure we update UI with wave, score, health.

Also ensure the pointer movement and rotation uses pointer.worldX, worldY; we are not adding world offset? Should be fine.

Also need to spawn wave after kill? We did in update: if enemies.countActive(false)==0. However countActive(false) returns number of inactive? Wait Arcade.Group countActive returns number of active (i.e., alive). Actually countActive() returns active count. So check if enemies.countActive()===0. We'll change.

Also enemy movement: we used iterate with this context; in update arrow function, but inside we use this.physics.velocityFromRotation. Need to bind this. We passed 'this' as second argument to iterate; inside function we use this.physics; but arrow? We used function(enemy) {...}. With second param this, this refers to scene. good.

But we also set enemy.setData('speed', spd); need to set physics body? Already added by create.

Need to ensure bullet created using group classType Phaser.Physics.Arcade.Image - correct. But need to set bullet lifetime maybe? Not.

Game over: currentScene.scene.pause(); but then when restarting, currentScene.scene.restart(); Should work.

But we didn't call currentScene = this earlier? we set in create: currentScene = this; good.

Let's edit restart event listener.

We need to run browser tests to ensure it works. The code uses makeTextureCircle and rect defined after usage? They are defined later. In preload, we call load.image('player', makeTextureCircle...). But makeTextureCircle defined later, but functions are defined earlier? JS hoisting: function declarations are hoisted, but makeTextureCircle defined after? It's a function declaration earlier? We defined it near the end. Yes, defined as function makeTextureCircle... after earlier usage, but hoisted. Should be okay.

But using this.load.image requires dataURL; we need to generate textures before load? It should work.

Potential issue: We need to call this.load.image with dataURL, but load.image expects path string or URL. DataURL works.

However, we used makeTextureCircle to generate a base64 dataURL; but the function returns dataURL. That should load.

Also need to ensure the arrow functions using 'this' correctly.

In gameOver, we paused scene with currentScene.scene.pause(). In restart we call currentScene.scene.restart(); but restart defined in same scope. Should be fine.

But we used restart() with this context not necessary. We call restart(); not this. Good.

Check spawnWave: enemies are moved but not per enemy? We removed moveToObject earlier; we set velocity each frame in update. That is fine.

But we didn't set enemy speed for initial spawn? We set data; in update we compute angle and set velocity. Good.

But need to limit enemy count? okay.

Also we didn't check collision of bullets out of bounds, but fine.

Check pointerMove rotation uses player.setRotation(angle). Good.

But we didn't set bullet angle? not needed.

Need to set bullet lifespan? may not.

Now need to test in browser. Use browser tool.

We need to test the functionality. We saw console logs, no errors. But we should verify movement etc. Since no interactive test, but we can rely on logic.

Potential issues: enemy movement set in spawnWave earlier removed; in update we now compute each frame. But enemy's speed uses enemy.getData('speed') but we didn't set body? In spawnWave, we set data but didn't start movement. In update we set velocity each frame, good.

But we didn't add a collision between enemy and bullet after movement? bulletHitEnemy uses destroy, fine. But we don't check for bullet lifespan out of bounds. Also, when enemy dies, health not reduced unless contact.

PlayerHitEnemy: when player collides with enemy, we destroy enemy and subtract health. But we didn't add collision for world bounds maybe.

Also, we didn't set enemies to collide world bounds, but moveToObject.

Also, after health <=0, gameOver triggers. But we used this.scene.pause(); but now this refers to scene? In gameOver we use currentScene.scene.pause(); we changed to that earlier? Wait we edited gameOver to use currentScene. In gameOver we used currentScene.scene.pause(); good.

restart uses currentScene.scene.restart(); but we changed to that. In restart event we call restart(); no this. Should be fine.

But we need to reset wave to 1 and spawn wave again. restart calls this.scene.restart() but after resetting variables and UI. However, restart is called in global context where currentScene still set? After restart, currentScene will be set again in new create. Good.

But after restart we didn't reset enemy speeds? spawnWave uses wave variable to set speed. So ok.

Need to ensure the enemies don't spawn on top of player? We spawn at radius 400, fine.

But we didn't set the bullet group to be limited; but fine.

Need to show visual feedback on hit? bullet just destroys enemy. We can add a flash maybe but not required.

But we should display score etc. Already.

Need to handle wave clearing: we check enemies.countActive(false)===0 but countActive expects a boolean? Actually countActive(true/false) counts active children? countActive is method of group? In Phaser, enemies.countActive(true/false). But we used enemies.countActive(false). But we want to check if no enemies left. But countActive returns number of active children? countActive(true) counts all active, including dead? Let's recall: group.countActive(true) counts active and alive? The parameter is to include 'active' children? Actually in Phaser 3, group.countActive(true) counts all active children. If we pass true or undefined. We pass false, but likely counts all inactive? Might not be correct. We could just check enemies.countActive()===0. Simpler: enemies.countActive()===0. Let's modify.

Also, we need to spawn wave when game restarts. Already.

Also, we need to keep bullets out of bounds: not necessary.

Let's patch the check.

Also ensure enemy movement uses this.physics.velocityFromRotation? We used this physics inside iterate: this.physics.velocityFromRotation(angle, speed,...). But inside iterate, 'this' is scene, because we passed 'this' as second param. We used iterate(function(enemy){...}, this); So 'this' refers to scene. Good.

Now patch enemies.countActive(false) to enemies.countActive()===0.

Also we might want to adjust spawnWave to include a timer? Not needed.

Let's edit.