Top-down alien shooter · gpt-5.6-luna
Using the pre-provided phaser.min.js (global Phaser), build a top-down alien shooter: move with WASD, aim and fire at waves of advancing aliens, with health, score, and increasing difficulty. Use ONLY procedurally generated graphics, no external image or audio assets.
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Using the pre-provided phaser.min.js (global Phaser), build a top-down alien shooter: move with WASD, aim and fire at waves of advancing aliens, with health, score, and increasing difficulty. Use ONLY procedurally generated graphics, no external image or audio assets.
thinking
**Creating an Index** I need to focus on creating an index. First, I'll have to inspect the directory, and that might involve checking out the library. I want to make sure I gather all the necessary details. It's vital to ensure everything is structured correctly for easy access later. I'm curious how best to approach this to ensure efficiency and organization!
{"command":"pwd && ls -la | sed -n '1,80p'"}/tmp/ws total 1156 drwxr-sr-x. 2 node node 27 Aug 1 17:31 . drwxrwsrwx. 3 root node 16 Aug 1 17:31 .. -rw-r--r--. 1 node node 1181917 Aug 1 17:31 phaser.min.js
thinking
**Planning a game project** I need to create a game using Phaser with a single file, ensuring it's polished and browser-compatible. I’ll implement a Phaser 3 scene with procedural graphics, allowing the player to rotate the mouse and auto-shoot with click or spacebar. The HUD will be HTML-based, incorporating Phaser text. I'll draw geometric shapes and use graphics objects for entities like the player, aliens, and bullets. Also, I'll need to write an index, setting the game to be centered and responsive at 1100x700. Let's get started!
/tmp/ws/index.html (9138 bytes)Successfully wrote 9138 bytes to /tmp/ws/index.html
{"path":"/tmp/ws/index.html","edits":[{"oldText":"this.bullets=[];this.aliens=[];this.bits=[];this.score=0;this.wave=0;this.waveText='';thisSuccessfully replaced 3 block(s) in /tmp/ws/index.html.
thinking
**Checking Phaser syntax** I need to check the syntax for Phaser Graphics, particularly `beginPath`. I think Phaser 3 does have `beginPath` and `moveTo`, which are likely what I'm looking for. The main issue seems to be that `pointer.worldX` might be undefined. Unfortunately, I can't test this headless right now, so I'll need to grep for duplicates to see if that helps clarify any issues. Let's dig a little deeper into this!
{"command":"node --check <(python3 - <<'PY'\nfrom pathlib import Path\ns=Path('index.html').read_text()\nstart=s.index('<script>')+8; end=s./bin/bash: line 1: python3: command not found node:fs:441 return binding.readFileUtf8(path, stringToFlags(options.flag)); ^ Error: ENOENT: no such file or directory, open '/proc/32/fd/pipe:[350087]' at Object.readFileSync (node:fs:441:20) at node:internal/main/check_syntax:36:21 { errno: -2, code: 'ENOENT', syscall: 'open', path: '/proc/32/fd/pipe:[350087]' } Node.js v24.18.1 Command exited with code 1
{"path":"/tmp/ws/index.html","offset":15,"limit":45}const C={bg:0x070b1d, cyan:0x4df6ff, cyan2:0x13b8d2, purple:0xc15cff, pink:0xff4f9a, lime:0xb8ff51, white:0xeaffff, muted:0x7892b9, red:0xff4569, gold:0xffd34e}; class Main extends Phaser.Scene { constructor(){super('main');} create(){ this.g=this.add.graphics(); this.fx=this.add.graphics(); this.ui=this.add.graphics(); this.keys=this.input.keyboard.addKeys('W,A,S,D,SPACE'); this.pointer=this.input.activePointer; this.stars=[]; for(let i=0;i<130;i++) this.stars.push({x:Phaser.Math.Between(20,W-20),y:Phaser.Math.Between(70,H-15),r:Phaser.Math.FloatBetween(.4,1.8),a:Phaser.Math.FloatBetween(.25,.85),tw:Phaser.Math.FloatBetween(1,4)}); this.player={x:W/2,y:H/2+50,r:18,hp:100,max:100,angle:0,fire:0,inv:0}; this.bullets=[];this.aliens=[];this.bits=[];this.score=0;this.wave=0;this.waveText='';this.waveTimer=1;this.spawnLeft=0;this.spawnTimer=0;this.makeText();this.nextWave(); this.input.on('pointerdown',()=>this.shoot()); this.input.keyboard.on('keydown-SPACE',()=>this.shoot()); this.input.keyboard.on('keydown-R',()=>{if(this.player.hp<=0)this.scene.restart()}); } makeText(){ const style={fontFamily:'Arial',fontSize:'16px',fontStyle:'bold',color:'#dffcff'}; this.title=this.add.text(28,19,'NEON EXODUS',{...style,fontSize:'22px',color:'#4df6ff',letterSpacing:3}); this.sub=this.add.text(30,47,'SECTOR 07 // PURGE PROTOCOL',{...style,fontSize:'10px',color:'#6884ab',letterSpacing:2}); this.scoreLabel=this.add.text(W-28,22,'SCORE 000000',{...style,fontSize:'18px',color:'#ffd34e'}).setOrigin(1,0); this.waveLabel=this.add.text(W-28,49,'WAVE 01',{...style,fontSize:'11px',color:'#7892b9'}).setOrigin(1,0); this.help=this.add.text(28,H-27,'W A S D MOVE MOUSE AIM CLICK / SPACE FIRE',{...style,fontSize:'10px',color:'#7892b9',letterSpacing:1}); this.status=this.add.text(W/2,27,'',{...style,fontSize:'12px',color:'#ff4f9a'}).setOrigin(.5,0); } nextWave(){this.wave++;this.spawnLeft=5+this.wave*3;this.spawnTimer=.8;this.waveTimer=0;this.waveText='WAVE '+String(this.wave).padStart(2,'0');this.status.setText(this.waveText+' // CONTACT INBOUND');this.status.setColor('#4df6ff');this.waveLabel.setText('WAVE '+String(this.wave).padStart(2,'0'));} shoot(){if(this.player.hp<=0||this.player.fire>0)return; let p=this.player, a=p.angle; this.bullets.push({x:p.x+Math.cos(a)*24,y:p.y+Math.sin(a)*24,vx:Math.cos(a)*720,vy:Math.sin(a)*720,life:1.2});p.fire=.13; this.muzzle=0.06;} spawnAlien(){ let side=Phaser.Math.Between(0,3),x,y; if(side===0){x=Phaser.Math.Between(30,W-30);y=85}else if(side===1){x=W-25;y=Phaser.Math.Between(90,H-35)}else if(side===2){x=Phaser.Math.Between(30,W-30);y=H-35}else{x=25;y=Phaser.Math.Between(90,H-35)} let roll=Math.random(), type=roll<Math.min(.18,this.wave*.015)?'brute':roll<.42?'skitter':'drone'; let hp=type==='brute'?3:1; this.aliens.push({x,y,type,hp,max:hp,r:type==='brute'?23:17,speed:(type==='skitter'?58: type==='brute'?25:38)+this.wave*2,phase:Math.random()*7,hit:0}); } update(t,delta){let dt=Math.min(delta/1000,.035),p=this.player; this.drawBackground(t); if(p.hp>0){ let dx=(this.keys.A.isDown?-1:0)+(this.keys.D.isDown?1:0),dy=(this.keys.W.isDown?-1:0)+(this.keys.S.isDown?1:0); if(dx||dy){let n=Math.hypot(dx,dy);p.x+=dx/n*250*dt;p.y+=dy/n*250*dt} p.x=Phaser.Math.Clamp(p.x,35,W-35);p.y=Phaser.Math.Clamp(p.y,88,H-45); let mx=this.pointer.worldX||this.pointer.x,my=this.pointer.worldY||this.pointer.y;p.angle=Math.atan2(my-p.y,mx-p.x); if(this.pointer.isDown||this.keys.SPACE.isDown)this.shoot(); p.fire=Math.max(0,p.fire-dt);p.inv=Math.max(0,p.inv-dt); } if(this.spawnLeft>0){this.spawnTimer-=dt;if(this.spawnTimer<=0){this.spawnAlien();this.spawnLeft--;this.spawnTimer=Math.max(.18,.7-this.wave*.025)}} else if(this.aliens.length===0){this.waveTimer+=dt;if(this.waveTimer>2)this.nextWave()} for(let i=this.bullets.length-1;i>=0;i--){let b=this.bullets[i];b.x+=b.vx*dt;b.y+=b.vy*dt;b.life-=dt;if(b.life<=0||b.x<0||b.x>W||b.y<70||b.y>H){this.bullets.splice(i,1);continue} for(let j=this.aliens.length-1;j>=0;j--){let a=this.aliens[j];if(Phaser.Math.Distance.Between(b.x,b.y,a.x,a.y)<a.r+5){this.bullets.splice(i,1);a.hp--;a.hit=.1;this.burst(b.x,b.y,C.cyan,4);if(a.hp<=0){this.score+=a.type==='brute'?250:a.type==='skitter'?125:75;this.burst(a.x,a.y,a.type==='brute'?C.pink:C.purple,16);this.aliens.splice(j,1)}break}}} for(let i=this.aliens.length-1;i>=0;i--){let a=this.aliens[i];let ang=Math.atan2(p.y-a.y,p.x-a.x);let sway=Math.sin(t/400+a.phase)*.28;a.x+=Math.cos(ang+sway)*a.speed*dt;a.y+=Math.sin(ang+sway)*a.speed*dt;a.hit=Math.max(0,a.hit-dt);if(p.hp>0&&Phaser.Math.Distance.Between(a.x,a.y,p.x,p.y)<a.r+p.r){if(p.inv<=0){p.hp-=a.type==='brute'?24:12;p.inv=.65;this.burst(p.x,p.y,C.red,12)}this.aliens.splice(i,1)}} if(p.hp<=0){p.hp=0;this.status.setText('SYSTEM FAILURE // PRESS R TO REBOOT').setColor('#ff4569');} this.updateBits(dt);this.drawWorld(t);this.updateUI(); } burst(x,y,color,count){for(let i=0;i<count;i++){let a=Math.random()*Math.PI*2,s=Phaser.Math.Between(35,170);this.bits.push({x,y,vx:Math.cos(a)*s,vy:Math.sin(a)*s,life:Phaser.Math.FloatBetween(.25,.7),max:.7,color,r:Phaser.Math.FloatBetween(1,3)})}} updateBits(dt){for(let i=this.bits.length-1;i>=0;i--){let b=this.bits[i];b.x+=b.vx*dt;b.y+=b.vy*dt;b.vx*=.96;b.vy*=.96;b.life-=dt;if(b.life<=0)this.bits.splice(i,1)}} [14 more lines in file. Use offset=60 to continue.]
thinking
**Exploring Phaser graphics** I'm considering the Phaser graphics library and whether it has a `beginPath` API to utilize. It seems that fixing the crosshair could be an application for this. I need to test the syntax, so I'll explore using `awk` for extraction instead of Python. Maybe `perl` would work as well. I also want to check with `node --check index.html`, though it doesn't seem to give me what I need. I'll proceed to use `awk` for extraction to a temporary file.
{"command":"awk '/<script>/{p=1;next}/<\\/script>/{p=0}p' index.html > /tmp/check.js && node --check /tmp/check.js && grep -o 'script src=\"script src="phaser.min.js"
Built the single-page game in `/tmp/ws/index.html`. Features: - WASD movement - Mouse aiming - Click or Space to fire - Procedurally drawn neon player, aliens, bullets, particles, grid, and stars - Multiple alien types with distinct health and speed - Waves with increasing enemy counts and difficulty - Health bar, score, wave indicator, game-over state, and R-to-restart - Uses only the provided local `phaser.min.js` - No external assets, audio, CDNs, or network requests
TAKE IT TO CODE
A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.
RUN
EVALUATION
Top-down shooter with player ship, aliens advancing, health bar, score, wave counter; movement and shooting respond to input.
Vision grade · anthropic/claude-sonnet-5
MEASUREMENTS
Raw readings from the capture, not a verdict — the grade above is the only judgement. Percentages are how much of the screen changed; the measure under-reports sparse motion on a dark background.