let spacePressed = false;

let dPressed = false;

let startXPos = 15;

let startYPos = 350;

​

let lvl = 1;

​

let lvlplatX = [];

let lvlplatY = [];

​

var lvl1platX = [15, 75, 115, 115, 275, 350];

var lvl1platY = [350, 300, 225, 160, 140, 170];

​

var lvl2platX = [15, 50, 80, 125, 180, 225, 255, 300, 350];

var lvl2platY = [350, 300, 200, 160, 225, 250, 300, 200, 100];

​

var lvlEndX;

var lvlEndY;

​

var grav = 0.5;

var ground = 375;

​

var platforms = [];

let song;

​

function preload() {

  song = loadSound('Music.mp3'); 

}

​

function setup() {

  createCanvas(500, 500);

​

  // Event listeners for key controls

  document.addEventListener("keydown", keyDownChecker, false);

  document.addEventListener("keyup", keyUpChecker, false);

​

  loadLevel(lvl);

}

​

function draw() {

  frameRate(60);

  background(220);

​

  // Display instructions based on the current level

  if (lvl == 1) {

    displayLevelInstructions("Use a and d to move and space to jump!");

  } else if (lvl == 2) {

    displayLevelInstructions("Now there are bad things, avoid them!");

  }

​

  // Handle jumping and movement

  if (spacePressed && jumper.onPlatform) {

    jumper.deltaY = -10;

    jumper.onPlatform = false;

  }

  if (aPressed) {

    jumper.x -= jumper.sideSpeed;

  }

  if (dPressed) {

    jumper.x += jumper.sideSpeed;

  }

​

  // Apply gravity

  if (!jumper.onPlatform) {

    jumper.deltaY += grav;

    jumper.y += jumper.deltaY;

  } else {

    jumper.deltaY = 0;

  }

​

  // Check for collisions with platforms

  let hasJumperCollided = false;

  let jumperCollisionPoint = jumper.y + jumper.size / 2;

​

  for (let i = 0; i < platforms.length; i++) {

    if (jumper.x + jumper.size / 2 > platforms[i].x && jumper.x - jumper.size / 2 < platforms[i].x + platforms[i].xSiz) {

      let platformHalfYsiz = platforms[i].ySiz * 0.5;

      let platformCenterY = platforms[i].y + platformHalfYsiz;

      let distToPlatform = abs(jumperCollisionPoint - platformCenterY);

​

      if (distToPlatform <= (platformHalfYsiz + jumper.deltaY)) {

        jumper.y = platforms[i].y - jumper.size / 2;

        jumper.deltaY = 0;

        hasJumperCollided = true;

        break;

      }

    }

  }

​

  jumper.onPlatform = hasJumperCollided;

​

  // Ground collision check

  if (jumper.y > ground - jumper.size / 2) {

    jumper.y = ground - jumper.size / 2;

    jumper.deltaY = 0;

    jumper.onPlatform = true;

  }

​

  // Constrain jumper position to canvas

  jumper.x = constrain(jumper.x, 0, width);

  jumper.y = constrain(jumper.y, 0, height);

​

  // Level transition check

  if (jumper.x >= lvlEndX && jumper.x <= lvlEndX + 70 && jumper.y <= lvlEndY) {

    lvl++;

    if (lvl > 2) {

      console.log("Game Completed!");

    } else {

      loadLevel(lvl);

    }

  }

​

  // Draw the jumper (player character)

  fill(200, 220, 0);

  ellipse(jumper.x, jumper.y, jumper.size, jumper.size);

​

  // Draw platforms

  for (let platform of platforms) {

    platform.display();

  }

}

​

function loadLevel(level) {

  platforms = []; // Reset platforms array

  if (level == 1) {

    lvlplatX = lvl1platX.slice(0);

    lvlplatY = lvl1platY.slice(0);

    lvlEndX = lvl1platX[5];

    lvlEndY = lvl1platY[5] + jumper.size / 2;

  } else if (level == 2) {

    lvlplatX = lvl2platX.slice(0);

    lvlplatY = lvl2platY.slice(0);

    lvlEndX = lvl2platX[8] + 35;

    lvlEndY = lvl2platY[8] + jumper.size / 2;

  }

​

  // Create platform objects

  for (let i = 0; i < lvlplatX.length; i++) {

    let newPlatform = new Platform(color(255, 0, 0), lvlplatX[i], lvlplatY[i], 70, 8);

    platforms.push(newPlatform);

  }

​

  // Reset jumper's position

  jumper.x = startXPos;

  jumper.y = startYPos;

}

​

function displayLevelInstructions(txt) {

  fill(0);

  textAlign(CENTER);

  textSize(20);

  textFont('Comic Sans');

  text(txt, width / 2, 100);

}

​

function keyDownChecker(e) {

  if (e.keyCode == 65) { 

    aPressed = true;

  } else if (e.keyCode == 68) { 

    dPressed = true;

  } else if (e.keyCode == 32) { 

    spacePressed = true;

  }

}

​

function keyUpChecker(e) {

  if (e.keyCode == 65) {  

    aPressed = false;

  } else if (e.keyCode == 68) { 

    dPressed = false;

  } else if (e.keyCode == 32) { 

    spacePressed = false;

  }

}

​