const T = api.THREE; api.world({time:"night", sky:"#191538", haze:"#382753", shadow:"#4c326d"}); const ground = new T.Mesh(new T.CircleGeometry(600,96), api.toon("#40557b")); ground.rotation.x = -Math.PI/2; ground.position.y = 0.02; api.add(ground,{id:"carnival-ground",describe:"the deep twilight carnival grounds",solid:false}); const dir = new T.Vector3(); api.camera.getWorldDirection(dir); dir.y = 0; if (dir.lengthSq()<0.001) dir.set(0,0,-1); dir.normalize(); const angle = Math.atan2(dir.x,dir.z); const origin = new T.Vector3(api.player.x,0,api.player.z); function worldPos(x,y,z) { return new T.Vector3(x,y,z).applyAxisAngle(new T.Vector3(0,1,0),angle).add(origin); } function groupAt(x,z) { const g = new T.Group(); g.position.copy(worldPos(x,api.groundHeight(origin.x,origin.z),z)); g.rotation.y = angle; return g; } const mats = {}; function mat(c,glow=false) { const k=c+(glow?"g":""); return mats[k] || (mats[k]=api.toon(c,{glow})); } function mesh(parent,geo,color,x,y,z,glow=false) { const m=new T.Mesh(geo,mat(color,glow)); m.position.set(x,y,z); parent.add(m); return m; } function box(p,w,h,d,c,x,y,z,glow=false) { return mesh(p,new T.BoxGeometry(w,h,d),c,x,y,z,glow); } function ball(p,r,c,x,y,z,glow=false) { return mesh(p,new T.SphereGeometry(r,12,8),c,x,y,z,glow); } function cyl(p,r1,r2,h,c,x,y,z) { return mesh(p,new T.CylinderGeometry(r1,r2,h,12),c,x,y,z); } function beam(p,a,b,r,c) { const va=new T.Vector3(...a), vb=new T.Vector3(...b); const m=cyl(p,r,r,va.distanceTo(vb),c,0,0,0); m.position.copy(va).add(vb).multiplyScalar(0.5); m.quaternion.setFromUnitVectors(new T.Vector3(0,1,0),vb.sub(va).normalize()); return m; } function addLocal(g,id,describe,solid=true) { api.add(g,{id,describe,solid}); } const plaza=groupAt(0,38); const paving=mesh(plaza,new T.CircleGeometry(31,64),"#725385",0,0.04,0); paving.rotation.x=-Math.PI/2; for(let i=0;i<18;i++){ const a=i*Math.PI*2/18; const m=box(plaza,2.1,0.045,0.42,i%2?"#e9a15f":"#ed86b1",Math.sin(a)*27,0.075,Math.cos(a)*27); m.rotation.y=a; } addLocal(plaza,"carnival-plaza","a violet carnival plaza with colorful paving",false); // Giant illuminated wheel, facing the plaza. const wheel=groupAt(-23,48); for(const z of [-2.1,2.1]){ beam(wheel,[-6.4,0.3,z],[0,11.1,0],0.32,"#e98c66"); beam(wheel,[6.4,0.3,z],[0,11.1,0],0.32,"#e98c66"); } box(wheel,14,0.45,5.4,"#784b8c",0,0.23,0); const rotor=new T.Group(); rotor.position.set(0,11.1,0); wheel.add(rotor); for(const z of [-0.48,0.48]){ const rim=mesh(rotor,new T.TorusGeometry(9,0.22,10,64),"#f0a15d",0,0,z,true); rim.name="illuminated-rim"; } for(let i=0;i<12;i++){ const a=i*Math.PI*2/12; beam(rotor,[0,0,0],[Math.sin(a)*9,Math.cos(a)*9,0],0.12,"#cba9ee"); ball(rotor,0.18,i%2?"#ffdb71":"#f48ec4",Math.sin(a)*9,Math.cos(a)*9,0.65,true); } cyl(rotor,0.8,0.8,1.5,"#9b6ae0",0,0,0).rotation.x=Math.PI/2; const gondolas=[]; for(let i=0;i<12;i++){ const a=i*Math.PI*2/12; const pivot=new T.Group(); pivot.position.set(Math.sin(a)*9,Math.cos(a)*9,0); rotor.add(pivot); beam(pivot,[0,0,0],[0,-0.8,0],0.08,"#f8c46d"); box(pivot,1.55,0.75,1.05,i%2?"#f08cc0":"#58c8c5",0,-1.13,0); box(pivot,1.7,0.14,1.15,"#f6cf87",0,-0.68,0); ball(pivot,0.12,"#ffed96",0,-0.55,0.61,true); gondolas.push(pivot); } addLocal(wheel,"glowing-wheel","a huge glowing carnival wheel with colorful gondolas"); // Carousel with a rotating platform, striped canopy, and painted horses. const carousel=groupAt(22,48); cyl(carousel,7.2,7.3,0.65,"#aa638f",0,0.34,0); cyl(carousel,6.9,6.9,0.15,"#f3ba69",0,0.72,0); const spin=new T.Group(); spin.position.y=0.82; carousel.add(spin); cyl(spin,6.5,6.5,0.22,"#f3c987",0,0,0); cyl(spin,0.5,0.6,5.8,"#d6975d",0,2.9,0); for(let i=0;i<12;i++){ const start=i*Math.PI*2/12; const canopy=new T.Mesh(new T.ConeGeometry(7,2.1,3,1,false,start,Math.PI*2/12),mat(i%2?"#ed789e":"#f8dba9")); canopy.position.y=5.9; spin.add(canopy); const a=i*Math.PI*2/12; ball(spin,0.16,"#ffe48a",Math.sin(a)*6.7,4.9,Math.cos(a)*6.7,true); } cyl(spin,6.85,6.85,0.22,"#c35e91",0,4.83,0); ball(spin,0.46,"#f8df72",0,7.05,0,true); for(let i=0;i<8;i++){ const a=i*Math.PI*2/8; const x=Math.sin(a)*4.65, z=Math.cos(a)*4.65; cyl(spin,0.075,0.075,4.6,"#f5cf73",x,2.35,z); const horse=new T.Group(); horse.position.set(x,1.25,z); horse.rotation.y=a+Math.PI/2; spin.add(horse); const color=i%2?"#f4d2b6":"#b8a4ea"; const body=ball(horse,0.66,color,0,0.35,0); body.scale.set(1.25,0.75,0.52); const neck=box(horse,0.36,0.87,0.42,color,0.62,0.69,0); neck.rotation.z=-0.3; const head=ball(horse,0.35,color,0.86,1.04,0); head.scale.set(1.25,0.8,0.85); box(horse,0.17,0.32,0.14,"#e985a9",0.7,1.36,0.16).rotation.z=-0.3; ball(horse,0.1,"#ffffff",0.95,1.12,0.28); ball(horse,0.043,"#2b1830",0.98,1.12,0.365); box(horse,0.7,0.13,0.65,i%2?"#8a5cc9":"#e87698",0,0.75,0); for(const xx of [-0.47,0.47]) for(const zz of [-0.22,0.22]){ const leg=box(horse,0.15,0.65,0.15,color,xx,-0.13,zz); leg.rotation.z=xx>0?-0.25:0.25; box(horse,0.22,0.12,0.19,"#8d5794",xx+(xx>0?0.08:-0.08),-0.43,zz); } const tail=box(horse,0.5,0.13,0.14,"#df86b0",-0.86,0.55,0); tail.rotation.z=-0.5; } addLocal(carousel,"carousel","a spinning striped carousel with painted horses"); // Striped big-top tents. function tent(x,z,r,id){ const g=groupAt(x,z); cyl(g,r,r,4.4,"#f6d9b3",0,2.2,0); for(let i=0;i<12;i++){ const a=i*Math.PI*2/12; const stripe=box(g,0.7,4.1,0.14,i%2?"#ee799d":"#eea65f",Math.sin(a)*(r-0.01),2.2,Math.cos(a)*(r-0.01)); stripe.rotation.y=a; const panel=new T.Mesh(new T.ConeGeometry(r+0.45,4.3,3,1,false,i*Math.PI*2/12,Math.PI*2/12),mat(i%2?"#e86d97":"#ffe0ad")); panel.position.y=6.5; g.add(panel); } box(g,2.2,3.2,0.16,"#713f78",0,1.6,-r-0.04); box(g,0.25,3.2,0.2,"#f5ba64",-1.15,1.6,-r-0.14); box(g,0.25,3.2,0.2,"#f5ba64",1.15,1.6,-r-0.14); cyl(g,0.08,0.08,1.5,"#f5c774",0,9.1,0); const flag=box(g,1.2,0.55,0.08,"#f08cc0",0.55,9.6,0); flag.rotation.z=-0.12; addLocal(g,id,"a colorful striped big-top carnival tent"); } tent(-12,78,7,"striped-tent-west"); tent(12,78,7,"striped-tent-east"); // Open-front game booths with prizes and striped awnings. function booth(x,z,id,kind){ const g=groupAt(x,z); box(g,5.4,0.4,3.3,"#9b5a86",0,0.2,0); box(g,5.1,2.7,0.22,"#e8a27a",0,1.75,1.5); for(const sx of [-2.45,2.45]){ box(g,0.25,3.7,0.25,"#f2c477",sx,2, -1.3); box(g,0.25,3.7,0.25,"#f2c477",sx,2, 1.3); box(g,0.18,2.5,2.7,"#e89db1",sx,1.65,0); } box(g,5.2,0.25,0.8,"#f8d7a3",0,1.25,-1.25); for(let i=0;i<8;i++){ const roof=box(g,0.68,0.18,3.6,i%2?"#f07f9d":"#ffe2ad",-2.35+i*0.67,3.85,0); roof.rotation.x=-0.08; } for(let i=0;i<7;i++) ball(g,0.1,"#ffe694",-2.1+i*0.7,3.7,-1.85,true); if(kind==="rings"){ for(let i=0;i<5;i++){ cyl(g,0.12,0.18,0.65, i%2?"#70cfca":"#ef9d66",-1.6+i*0.8,1.7,0.7); const ring=mesh(g,new T.TorusGeometry(0.32,0.055,8,16),"#f6dd79",-1.6+i*0.8,2.12,0.7,true); ring.rotation.x=Math.PI/2; } }else{ for(let i=0;i<3;i++){ for(let j=0;j<3-i;j++){ cyl(g,0.22,0.26,0.45,j%2?"#a58bdf":"#79c9c6",(j-(2-i)/2)*0.55,1.55+i*0.46,0.8); } } for(let i=0;i<3;i++) ball(g,0.17,"#f6d07d",-0.8+i*0.8,1.48,-1.15); } addLocal(g,id,kind==="rings"?"a ring toss game booth":"a colorful can-toss game booth"); } booth(-15,23,"ring-toss-booth","rings"); booth(15,23,"can-toss-booth","cans"); booth(-31,68,"prize-booth-west","cans"); booth(31,68,"prize-booth-east","rings"); // Strings of glowing bulbs crisscross the entire midway. const lights=groupAt(0,0); const bulbColors=["#ffe27c","#ff98c5","#8ee4dd","#d5a1ff"]; for(const z of [13,31,57,72]){ for(const x of [-35,35]){ cyl(lights,0.13,0.17,8.4,"#9364a3",x,4.2,z); ball(lights,0.2,"#ffdd7a",x,8.45,z,true); } const curve=new T.QuadraticBezierCurve3(new T.Vector3(-35,8.3,z),new T.Vector3(0,4.9,z),new T.Vector3(35,8.3,z)); mesh(lights,new T.TubeGeometry(curve,40,0.045,6,false),"#5d3d71",0,0,0); for(let i=0;i<=28;i++){ const p=curve.getPoint(i/28); beam(lights,[p.x,p.y,p.z],[p.x,p.y-0.24,p.z],0.035,"#654674"); ball(lights,0.17,bulbColors[i%4],p.x,p.y-0.32,p.z,true); } } for(const x of [-35,35]){ for(let j=0;j<3;j++){ const z1=[13,31,57][j], z2=[31,57,72][j]; const curve=new T.QuadraticBezierCurve3(new T.Vector3(x,8.3,z1),new T.Vector3(x,6.8,(z1+z2)/2),new T.Vector3(x,8.3,z2)); mesh(lights,new T.TubeGeometry(curve,16,0.045,6,false),"#5d3d71",0,0,0); for(let i=1;i<9;i++){ const p=curve.getPoint(i/9); ball(lights,0.15,bulbColors[(i+j)%4],p.x,p.y-0.15,p.z,true); } } } addLocal(lights,"string-lights","strings of colorful glowing midway lights",false); // Animated firework bursts overhead. const fireworks=groupAt(0,0); const bursts=[]; for(let b=0;b<5;b++){ const g=new T.Group(); g.position.set([-32,-14,7,26,42][b],[34,42,36,46,32][b],[70,92,76,88,72][b]); fireworks.add(g); const sparks=[]; for(let i=0;i<28;i++){ const y=1-2*(i+0.5)/28; const a=i*2.399963+b; const rr=Math.sqrt(1-y*y); const v=new T.Vector3(Math.cos(a)*rr,y,Math.sin(a)*rr); const dot=ball(g,0.23,bulbColors[(i+b)%4],0,0,0,true); const trail=beam(g,[0,0,0],[0,0.6,0],0.045,bulbColors[(i+b)%4]); sparks.push({v,dot,trail}); } bursts.push({g,sparks,phase:b*0.83}); } addLocal(fireworks,"fireworks","colorful fireworks bursting above the carnival",false); const moon=groupAt(0,0); ball(moon,11,"#f4d993",-95,100,190,true); addLocal(moon,"carnival-moon","a golden moon over the carnival",false); api.onFrame((dt,t)=>{ rotor.rotation.z=t*0.12; for(const cabin of gondolas) cabin.rotation.z=-rotor.rotation.z; spin.rotation.y=t*0.32; for(const b of bursts){ const phase=(t+b.phase)%4.2; const u=Math.min(1,phase/1.8); const fade=phase<2.5?1:Math.max(0,1-(phase-2.5)/1.1); b.g.visible=fade>0 && phase<3.6; for(const s of b.sparks){ const radius=0.4+u*7; s.dot.position.copy(s.v).multiplyScalar(radius); s.dot.position.y-=u*u*1.4; s.dot.scale.setScalar(Math.max(0.01,fade*(1-u*0.35))); const end=s.dot.position; const start=end.clone().addScaledVector(s.v,-(0.3+u*0.8)); s.trail.position.copy(start).add(end).multiplyScalar(0.5); s.trail.quaternion.setFromUnitVectors(new T.Vector3(0,1,0),end.clone().sub(start).normalize()); s.trail.scale.set(1,Math.max(0.01,fade*(0.3+u*0.8)/0.6),1); } } }); api.say="I built a nighttime carnival with glowing rides, game booths, striped tents, and fireworks overhead."; api.suggest=["add a roller coaster behind the carnival","fill the midway with wandering visitors","add a cotton candy stand","make the fireworks bigger and brighter"];