script.js

const canvas = document.getElementById("gameCanvas");
const ctx = canvas.getContext("2d");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;

let fruits=[], trail=[], particles=[];
let score=0, lives=3;
let gameRunning=false, playerName="Player", mode="solo", difficulty="normal";
let botScore=0;
let spawnInterval;

const sliceSound=document.getElementById("sliceSound");
const bombSound=document.getElementById("bombSound");
const bgMusic=document.getElementById("bgMusic");
bgMusic.volume=0.3; // lower volume

const fruitImages=[
"https://cdn-icons-png.flaticon.com/512/590/590685.png",
"https://cdn-icons-png.flaticon.com/512/415/415733.png",
"https://cdn-icons-png.flaticon.com/512/135/135620.png",
"https://cdn-icons-png.flaticon.com/512/590/590774.png"
].map(src=>{let img=new Image(); img.src=src; return img;});

const bombImg=new Image();
bombImg.src="https://cdn-icons-png.flaticon.com/512/484/484167.png";

// Start / Restart
function startGame(selectedMode){
  playerName=document.getElementById("playerName").value||"Player";
  mode=selectedMode;
  difficulty=document.getElementById("difficulty").value;
  document.getElementById("startScreen").style.display="none";
  document.getElementById("gameUI").style.display="block";
  lives=difficulty==="toddler"?10:3;
  gameRunning=true;
  spawnInterval=setInterval(spawnFruit,700);
}

function restartGame(){ location.reload(); }

// Spawn fruits
function spawnFruit(){
  if(!gameRunning) return;
  let type=Math.random()>0.85?"bomb":"fruit";
  let speed=0;
  switch(difficulty){
    case "toddler": speed=2; break;
    case "easy": speed=3+Math.random()*2; break;
    case "normal": speed=4+Math.random()*2; break;
    case "hard": speed=5+Math.random()*3; break;
    case "god": speed=6+Math.random()*4; break;
  }
  let img=type==="bomb"?bombImg:fruitImages[Math.floor(Math.random()*fruitImages.length)];
  fruits.push({x:Math.random()*(canvas.width-60),y:canvas.height,size:type==="bomb"?60:50,speed:speed,type:type,img:img});
}

// Blade trail
document.addEventListener("mousemove", e=>addPoint(e.clientX,e.clientY));
document.addEventListener("touchmove", e=>{let t=e.touches[0]; addPoint(t.clientX,t.clientY);});
function addPoint(x,y){trail.push({x,y}); if(trail.length>20) trail.shift();}

// Particles
function splash(x,y){
  for(let i=0;i<20;i++){particles.push({x,y,dx:(Math.random()-0.5)*10,dy:(Math.random()-0.5)*10,life:30});}
}

// Draw loop
function draw(){
  ctx.clearRect(0,0,canvas.width,canvas.height);

  // Fruits
  fruits.forEach((f,i)=>{
    f.y-=f.speed;
    ctx.drawImage(f.img,f.x,f.y,f.size,f.size);
    trail.forEach(p=>{
      let dx=p.x-(f.x+f.size/2), dy=p.y-(f.y+f.size/2);
      if(Math.sqrt(dx*dx+dy*dy)<f.size/2){
        fruits.splice(i,1);
        if(f.type==="bomb"){bombSound.play(); endGame();}
        else{sliceSound.play(); splash(f.x,f.y); score++;}
      }
    });
    if(f.y<-60){fruits.splice(i,1); if(f.type==="fruit") lives--;}
  });

  // Particles
  particles.forEach((p,i)=>{p.x+=p.dx; p.y+=p.dy; p.life--; ctx.fillStyle="cyan"; ctx.fillRect(p.x,p.y,4,4); if(p.life<=0) particles.splice(i,1);});

  // Blade
  ctx.beginPath();
  for(let i=0;i<trail.length-1;i++){ctx.moveTo(trail[i].x,trail[i].y); ctx.lineTo(trail[i+1].x,trail[i+1].y);}
  ctx.strokeStyle="lime"; ctx.lineWidth=6; ctx.stroke();

  // Score & lives
  document.getElementById("score").innerText="Score: "+score;
  document.getElementById("lives").innerText="Lives: "+"❤️".repeat(lives);

  if(lives<=0) endGame();
  requestAnimationFrame(draw);
}
draw();

// End Game
function endGame(){
  gameRunning=false; clearInterval(spawnInterval);
  document.getElementById("gameUI").style.display="none";
  document.getElementById("gameOver").style.display="block";
  document.getElementById("finalScore").innerText="Score: "+score;
}