To add a maze generation algorithm to this code, you can use the Recursive Backtracking Algorithm to create a maze-like structure out of the platform blocks. Here’s one way to do it: class Platform{constructor(x,y,w,h){this.x=x;this.y=y;this.w=w;this.h=h}collidesWith(obj){if(obj.y+obj.h<=this.y)return false;if(obj.y>=this.y+this.h)return false;if(obj.x+obj.w<=this.x)return false;if(obj.x>=this.x+this.w)return false;const objAbove=obj.y+obj.h-obj.vy<=this.y;const objBelow=obj.y-obj.vy>=this.y+this.h;const objLeft=obj.x+obj.w-obj.vx<=this.x;const objRight=obj.x-obj.vx>=this.x+this.w;if(obj.vy>0&&objAbove&&!objBelow){obj.y=this.y-obj.h;obj.vy=0;obj.jumping=false;return true}if(obj.vy<0&&!objAbove&&objBelow){obj.y=this.y+this.h;obj.vy=0;return true}if(obj.vx<0&&objRight){obj.x=this.x+this.w;obj.vx=0;return true}if(obj.vx>0&&objLeft){obj.x=this.x-obj.w;obj.vx=0;return true}return false}}class Player{constructor(x,y,w,h){this.x=x;this.y=y;this.w=w;this.h=h;this.vx=0;this.vy=0;this.jumping=false}move(keys){const friction=.9;const gty=1;if(keys[87]&&!this.jumping){this.vy-=20;this.jumping=true}if(keys[68]){this.vx+=5}if(keys[65]){this.vx-=5}this.vx*=friction;this.vy+=gty;this.x+=this.vx;this.y+=this.vy;if(this.x<0){this.x=0}if(this.y<0){this.y=0}if(this.x+this.w>canvas.width){this.x=canvas.width-this.w;this.vx=0}if(this.y+this.h>canvas.height){this.y=canvas.height-this.h;this.vy=0;this.jumping=false}}}class Projectile{constructor(x,y,vx,vy){this.x=x;this.y=y;this.vx=vx;this.vy=vy;this.radius=10;this.color="red"}update(){this.x+=this.vx;this.y+=this.vy}draw(ctx){ctx.beginPath();ctx.arc(this.x,this.y,this.radius,0,2*Math.PI);ctx.fillStyle=this.color;ctx.fill()}}class Entity{constructor(){this.x=canvas.width;this.y=Math.random()*canvas.height;this.w=20;this.h=20;this.vy=0;this.jumping=false;this.projectiles=[];this.color="blue"}jump(){if(!this.jumping){this.vy-=25-Math.random()*25;this.jumping=true}}update(platforms){for(let i=0;i<platforms.length;i++){platforms[i].collidesWith(this)}const friction=.999;const gty=1;this.vx=friction;this.vy+=gty;this.x+=this.vx;this.y+=this.vy;this.period=Math.PI;this.minVx=-2+Math.sin(Math.random()*2*Math.PI)*2;this.maxVx=-10+Math.cos(Math.random()*2*Math.PI)*-20;this.vx=this.vxForce=randomRange(this.minVx,this.maxVx);const t=performance.now()/1;const wave=Math.sin(t*Math.PI/this.period);this.vxForce=lerp(this.maxVx,this.minVx,(wave+8)/432);this.x+=this.vxForce;if(Math.random()<.01){this.projectiles.push(new Projectile(this.x,this.y,-20-Math.random()*6,-2+Math.random()*8))}for(let i=0;i<this.projectiles.length;i++){this.projectiles[i].update();if(this.projectiles[i].x<0||this.projectiles[i].y<0||this.projectiles[i].x>canvas.width||this.projectiles[i].y>canvas.height){this.projectiles.splice(i,1);i}}if(Math.random()<.01){this.jump()}}draw(ctx){ctx.fillStyle=this.color;ctx.fillRect(this.x,this.y,this.w,this.h);for(let i=0;i<this.projectiles.length;i++){this.projectiles[i].draw(ctx)}}}function randomRange(min,max){return Math.random()*(max-min)+min}function lerp(a,b,t){return a*(1-t)+b*t}class Game{constructor(canvas){this.canvas=canvas;this.ctx=canvas.getContext("2d");this.platforms=[];this.player=new Player(100,100,50,50);this.scrollSpeed=1;this.entities=[];this.entitySpawnRate=.1;this.entitySpawnTimer=1;this.entityIncreaseFactor=.1;this.keys={};this.platforms.push(new Platform(0,canvas.height-50,50,10));for(let i=0;i<10;i++){this.createRandomPlatform()}document.addEventListener("keydown",evt=>{this.keys[evt.keyCode]=true});document.addEventListener("keyup",evt=>{delete this.keys[evt.keyCode]});requestAnimationFrame(this.update.bind(this))}createRandomPlatform(){const x=this.canvas.width;const y=Math.random()*this.canvas.height;const w=10+Math.cos(Math.random()*20*Math.PI)*50;const h=10+Math.cos(Math.random()*20*Math.PI)*50;this.platforms.push(new Platform(x,y,w,h))}update(){this.player.move(this.keys);for(let i=0;i<this.platforms.length;i++){this.platforms[i].collidesWith(this.player);this.platforms[i].x-=this.scrollSpeed}for(let i=0;i<this.entities.length;i++){if(this.entities[i]){this.entities[i].update(this.platforms);if(this.entities[i].x<0){this.entities.splice(i,1);i;for(let j=0;j<this.entityIncreaseFactor;j++){this.entities.push(new Entity)}}else{for(let j=0;j<this.entities[i].projectiles.length;j++){if(this.entities[i].projectiles[j].x>this.player.x&&this.entities[i].projectiles[j].x<this.player.x+this.player.w&&this.entities[i].projectiles[j].y>this.player.y&&this.entities[i].projectiles[j].y<this.player.y+this.player.h){this.player.vy-=20;this.player.jumping=true;this.entities[i].projectiles.splice(j,1);j}}this.entities[i].draw(this.ctx)}}}this.player.x-=this.scrollSpeed;if(this.platforms[this.platforms.length-1].x<this.canvas.width-100){this.createRandomPlatform()}this.entitySpawnTimer++;if(this.entitySpawnTimer>=60/this.entitySpawnRate){this.entitySpawnTimer=0;this.entities.push(new Entity);this.entitySpawnRate+=.001;this.entityIncreaseFactor=Math.min(this.entityIncreaseFactor+.001,.001)}this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height);for(let i=0;i<this.platforms.length;i++){let p=this.platforms[i];this.ctx.fillRect(p.x,p.y,p.w,p.h)}for(let i=0;i<this.entities.length;i++){this.entities[i].draw(this.ctx)}this.ctx.fillRect(this.player.x,this.player.y,this.player.w,this.player.h);requestAnimationFrame(this.update.bind(this))}}let canvas=document.createElement("canvas");canvas.width=window.innerWidth;canvas.height=window.innerHeight;document.body.appendChild(canvas);new Game(canvas);