//declare variables for points, multiplier, buy upgrade, b1 2 and 3 cost and count, make point updater
    var points = 999999;
    var clickcount = 0;
    var pointMulti = 1;
    var buyupgrade = 0;
    var b1cost = 200;
    var b1count = 0;
    var b1multi = 1;
    var b1pps = (b1count * 1) * b1multi;
    var b2cost = 1000;
    var b2count = 0;
    var b2multi = 1;
    var b2pps = (b2count * 4) * b2multi;
    var b3cost  = 2000;
    var b3count = 0;
    var b3multi = 1;
    var b3pps = (b3count * 10) * b3multi;
    var b4cost = 4500;
    var b4count = 0;
    var b4multi = 1;
    var b4pps = (b4count * 24) * b4multi;
    var b5cost = 10000;
    var b5count = 0;
    var b5multi = 1;
    var b5pps = (b5count * 56) * b5multi;
    var b6cost = 25000;
    var b6count = 0;
    var b6multi = 1;
    var b6pps = (b6count * 130) * b6multi;
    var b7cost = 60000;
    var b7count = 0;
    var b7multi = 1;
    var b7pps = (b7count * 315) * b7multi;
    var b1m1cost = 1500;
    var b1m1count = 0;
    var b2m1cost = 4000;
    var b2m1count = 0;
    var b3m1count = 0;
    var b3m1cost = 11000;
    var ppstotal = 0;
    var pointsfromclick = 0;
    var totalpoints = 0;
    var totalbuild = 0;
    var statupdate = setInterval(updatestats, 250);
    var currentpoints = setInterval(pointupdate, 250);

    //clicking on main button to add points
    function addPoints() {
        points += pointMulti;
        clickcount++;
        pointsfromclick += pointMulti;
        totalpoints += pointMulti;
        document.getElementById("clickcount").innerHTML = "You have " + clickcount + " total clicks.";
        document.getElementById("pointsfromclick").innerHTML = "You have made " + pointsfromclick + " bread objects from clicking.";
        document.getElementById("totalpointcount").innerHTML = "You have made " + totalpoints + " total bread objects.";
        var pointsArea = document.getElementById("pointdisplay");
        pointsArea.innerHTML = "You have " + Math.round(points) + " bread objects!";
            if(points >= 100 && buyupgrade === 0) {
            var multiply_button = document.getElementById("btn_multiply");
            multiply_button.style.display = "inline";
        }
    }

    //make logic for doubling addpoints
    function firstx2() {
      if (buyupgrade === 0) {
        pointMulti *= 2;
        buyupgrade++;
        points -= 100;
        var multiplierArea = document.getElementById("multidisplay");
        multiplierArea.innerHTML = "Your multiplier is: " + pointMulti;
        var multiply_button = document.getElementById("btn_multiply");
        multiply_button.style.display = "none";

      //logic for displaying first building upgrade
      if (buyupgrade === 1) {
        var firstbuild = document.getElementById("firstbuild");
        firstbuild.style.display = "inline";
        firstbuild.innerText = "Sliced bread maker. Cost " + Math.round(b1cost);

        var show2ndx2 = document.getElementById("secondx2");
        multiply2.style.display = "inline";
      }

      }
    }

    //displays total points
    function pointupdate() {
      document.getElementById("pointdisplay").innerHTML = "You have " + Math.round(points) + " bread objects!";
    }

    //what happens when you click first building button
    function build1() {
      if (points >= b1cost) {
        points -= b1cost;
        b1count++;
        b1cost *= 1.10;
        totalbuild++;
        var build1add = setInterval(build1points, 1000);
        updatepps();
        //var b1multi = 1;
        //var b1pps = (b1count * b1multi);
        document.getElementById("b1").innerHTML = "You have " + b1count + " bread slicers! Making " + b1pps + " slices of bread per second. Each building is making " + 1 * b1multi + " slices of bread per second!";
        firstbuild.innerText = "Sliced bread maker. Cost " + Math.round(b1cost);

        //display second building
        var secondbuild = document.getElementById("secondbuild");
        secondbuild.style.display = "inline";
        secondbuild.innerText = "Sandwich bread machine. Cost: " + Math.round(b2cost);

      }
    }

    //what happens when you click second building button
    function build2() {
      if (points >= b2cost) {
        points -= b2cost;
        b2count++;
        b2cost *= 1.10;
        totalbuild++;
        var build2add = setInterval(build2points, 1000);
        updatepps();
        //var b2pps = (b2count * 4) * b2multi;
        document.getElementById("b2").innerHTML = "You have " + b2count + " sandwich bread machines! Making " + b2pps + " sandwich buns per second. Each machine is making " + 4 * b2multi + " sandwich buns per second!";
        secondbuild.innerText = "Sandwich bread machine. Cost " + Math.round(b2cost);

        //display third building
        var thirdbuild = document.getElementById("thirdbuild");
        thirdbuild.style.display = "inline";
        thirdbuild.innerText = "Crouton maker. Cost " + Math.round(b3cost);
      }
    }

    //what happens when you click third building button
    function build3() {
      if (points >= b3cost) {
        points -= b3cost;
        b3count++;
        b3cost *= 1.10;
        totalbuild++;
        var build3add = setInterval(build3points, 1000);
        updatepps();
        //var b3pps = (b3count * 10) * b3multi;
        document.getElementById("b3").innerHTML = "You have " + b3count + " crouton makers! Making " + b3pps + " croutons per second. Each crouton maker is making " + 10 * b3multi + " points per second!"
        thirdbuild.innerText = "Crouton maker. Cost " + Math.round(b3cost);

        //display fourth building
        var fourthbuild = document.getElementById("fourthbuild");
        fourthbuild.style.display = "inline";
        fourthbuild.innerText = "Roll factory. Cost " + Math.round(b4cost);

        //first building first multiplier
        if (b1m1count == 0) {
          var firstbuildmulti1 = document.getElementById("firstbuildmulti1");
          firstbuildmulti1.style.display = "inline";
          firstbuildmulti1.innerText = " Sliced bread x2 multiplier. Cost: " + b1m1cost + ".";
        }
      }
    }

    //what happens when you click on build4
    function build4() {
      if (points >= b4cost) {
        points -= b4cost;
        b4count++;
        b4cost *= 1.10;
        totalbuild++;
        var build4add = setInterval(build4points, 1000);
        updatepps();
        document.getElementById("b4").innerHTML = "You have " + b4count + " roll factories! Making " + b4pps + " rolls per second. Each building is making " + 24 * b4multi + " rolls per second!"
        fourthbuild.innerText = "Roll factory. Cost " + Math.round(b4cost);

        //display fifth building
        var fifthbuild = document.getElementById("fifthbuild");
        fifthbuild.style.display = "inline";
        fifthbuild.innerText = "Baguette oven. Cost " + Math.round(b5cost);

        //second building second multiplier
        if (b2m1count == 0) {
          var secondbuildmulti1 = document.getElementById("secondbuildmulti1");
          secondbuildmulti1.style.display = "inline";
          secondbuildmulti1.innerText = "Sandwich bread x2 multiplier. Cost " + b2m1cost + ".";
        }

      }
    }

    function build5() {
      if (points >= b5cost) {
        points -= b5cost;
        b5count++;
        totalbuild++;
        b5cost *= 1.10;
        var build5add = setInterval(build5points, 1000);
        updatepps();
        document.getElementById("b5").innerHTML = "You have " + b5count + " baguette ovens! Making " + b5pps + " baguettes per second. Each building is making " + 56 * b5multi + " baguettes per second!";
        fifthbuild.innerText = "Baguette oven. Cost " + Math.round(b5cost);

        if (b3m1count == 0) {
          var thirdbuildmulti1 = document.getElementById("thirdbuildmulti1");
          thirdbuildmulti1.style.display = "inline";
          thirdbuildmulti1.innerText = "Crouton maker x2 multiplier. Cost " + b3m1cost + ".";
        }

        var sixthbuild = document.getElementById("sixthbuild")
        sixthbuild.style.display = "inline";
        sixthbuild.innerText = "Bagel production line. Cost " + Math.round(b6cost);
      }
    }

    function build6() {
      if (points >= b6cost) {
        points -= b6cost;
        b6count++;
        totalbuild++;
        b6cost *= 1.10;
        var build6add = setInterval(build6points, 1000);
        updatepps();
        document.getElementById("b6").innerHTML = "You have " + b6count + " bagel production lines! Making " + b6pps + " bagels per second. Each building is making " + 130 * b6multi + " bagels per second!";
        sixthbuild.innerText = "Bagel production line. Cost " + Math.round(b6cost);

        var seventhbuild = document.getElementById("seventhbuild")
        seventhbuild.style.display = "inline";
        seventhbuild.innerText = "Soft pretzel manufacturer. Cost " + Math.round(b7cost);
      }
    }

    function build7() {
      if (points >= b7cost) {
        points -= b7cost;
        b7count++;
        totalbuild++;
        b7cost *= 1.10;
        var build7add = setInterval(build7points, 1000);
        updatepps();
        document.getElementById("b7").innerHTML = "You have " + b7count + " soft pretzel manufacturers! Making " + b7pps + " soft pretzels per second. Each building is making " + 315 * b7multi + " soft pretzels per second";
        seventhbuild.innerText = "Soft pretzel manufacturer. Cost " + Math.round(b7cost);
      }
    }

    //add points for build1
    function build1points() {
      points += (1 * b1multi);
      totalpoints += (1 * b1multi);
    }

    //add points for build2
    function build2points() {
      points += (4 * b2multi);
      totalpoints += (4 * b2multi);
    }

    //add points for build3
    function build3points() {
      points += (10 * b3multi);
      totalpoints += (10 * b3multi);
    }

    function build4points() {
      points += (24 * b4multi);
      totalpoints += (24 * b4multi);
    }

    function build5points() {
      points += (56 * b5multi);
      totalpoints += (56 * b5multi);
    }

    function build6points() {
      points += (130 * b6multi);
      totalpoints += (130 * b6multi);
    }

    function build7points() {
      points += (315 * b7multi);
      totalpoints += (315 * b7multi);
    }

    //second x2, display multiplier
    function secondx2() {
      if (buyupgrade == 1 && points >= 1000) {
        pointMulti *= 2;
        points -= 1000;
        buyupgrade++;
        document.getElementById("multidisplay").innerHTML = "Your multiplier is: " + pointMulti;
        multiply2.style.display = "none";

        if (buyupgrade == 2 && 5000) {
          multiply3.style.display = "inline";
        }
      }
    }

    function thirdx2() {
      if (buyupgrade == 2 && points >= 5000) {
        pointMulti *= 2;
        points -= 5000;
        buyupgrade++;
        document.getElementById("multidisplay").innerHTML = "Your multiplier is: " + pointMulti;
        multiply3.style.display = "none";
      }
    }

    function build1multi1() {
      if (points >= b1m1cost) {
        points -= b1m1cost;
        b1multi *= 2;
        b1m1count++;
        updatepps();
        var build1multi1 = document.getElementById("firstbuildmulti1");
        firstbuildmulti1.style.display = "none";
        document.getElementById("b1").innerHTML = "You have " + b1count + " bread slicers! Making " + b1pps + " slices of bread per second. Each building is making " + 1 * b1multi + " sliced of bread per second!";
      }
    }

    function build2multi1() {
      if (points >= b2m1cost) {
        points -= b2m1cost;
        b2multi *= 2;
        b2m1count++;
        updatepps();
        var build2multi1 = document.getElementById("secondbuildmulti1");
        secondbuildmulti1.style.display = "none";
        document.getElementById("b2").innerHTML = "You have " + b2count + " of sandwich bread makers! Making " + b2pps + " sandwich buns per second. Each building is making " + 4 * b2multi + " sandwich buns per second!";
      }
    }

    function build3multi1() {
      if (points >= b3m1cost) {
        points -= b3m1cost;
        b3multi *= 2;
        b3m1count++;
        updatepps();
        var build3multi1 = document.getElementById("thirdbuildmulti1");
        thirdbuildmulti1.style.display = "none";
        document.getElementById("b3").innerHTML = "You have " + b3count + " crouton makers! Making " + b3pps + " croutons per second. Each crouton maker is making " + 10 * b3multi + " croutons per second!";
      }
    }

    function updatepps(){
      b1pps = (b1count * 1) * b1multi;
      b2pps = (b2count * 4) * b2multi;
      b3pps = (b3count * 10) * b3multi;
      b4pps = (b4count * 24) * b4multi;
      b5pps = (b5count * 56) * b5multi;
      b6pps = (b6count * 130) * b6multi;
      b7pps = (b7count * 315) * b7multi;
      ppstotal = b1pps + b2pps + b3pps + b4pps + b5pps + b6pps + b7pps;
      document.getElementById("ppstotal").innerHTML = "Your total bread objects per second is " + ppstotal + "!";
    }

    function updatestats() {
      document.getElementById("totalpointcount").innerHTML = "You have made " + totalpoints + " total points."
      document.getElementById("totalbuild").innerHTML = "You have " + totalbuild + " total buildings."
    }

    function switchtab(evt, pagename) {
      var i, tabcontent, tablinks;
      tabcontent = document.getElementsByClassName("tabcontent");
      for (i = 0; i < tabcontent.length; i++) {
        tabcontent[i].style.display = "none";
      }
      tablinks = document.getElementsByClassName("tablinks");
      for (i = 0; i < tablinks.length; i++) {
        tablinks[i].className = tablinks[i].className.replace(" active", "");
      }
      document.getElementById(pagename).style.display = "block";
      evt.currentTarget.className += "active";
    }