Chris Courses Pacman Tutorial: Pre-built map, loop, and switch case statement

index.js

const map = [
  ['1', '-', '-', '-', '-', '-', '-', '-', '-', '-', '2'],
  ['|', '.', '.', '.', '.', '.', '.', '.', '.', '.', '|'],
  ['|', '.', 'b', '.', '[', '7', ']', '.', 'b', '.', '|'],
  ['|', '.', '.', '.', '.', '_', '.', '.', '.', '.', '|'],
  ['|', '.', '[', ']', '.', '.', '.', '[', ']', '.', '|'],
  ['|', '.', '.', '.', '.', '^', '.', '.', '.', '.', '|'],
  ['|', '.', 'b', '.', '[', '+', ']', '.', 'b', '.', '|'],
  ['|', '.', '.', '.', '.', '_', '.', '.', '.', '.', '|'],
  ['|', '.', '[', ']', '.', '.', '.', '[', ']', '.', '|'],
  ['|', '.', '.', '.', '.', '^', '.', '.', '.', '.', '|'],
  ['|', '.', 'b', '.', '[', '5', ']', '.', 'b', '.', '|'],
  ['|', '.', '.', '.', '.', '.', '.', '.', '.', 'p', '|'],
  ['4', '-', '-', '-', '-', '-', '-', '-', '-', '-', '3']
]

// Additional cases (does not include the power up pellet that's inserted later in the vid)
map.forEach((row, i) => {
  row.forEach((symbol, j) => {
    switch (symbol) {
      case '-':
        boundaries.push(
          new Boundary({
            position: {
              x: Boundary.width * j,
              y: Boundary.height * i
            },
            image: createImage('./img/pipeHorizontal.png')
          })
        )
        break
      case '|':
        boundaries.push(
          new Boundary({
            position: {
              x: Boundary.width * j,
              y: Boundary.height * i
            },
            image: createImage('./img/pipeVertical.png')
          })
        )
        break
      case '1':
        boundaries.push(
          new Boundary({
            position: {
              x: Boundary.width * j,
              y: Boundary.height * i
            },
            image: createImage('./img/pipeCorner1.png')
          })
        )
        break
      case '2':
        boundaries.push(
          new Boundary({
            position: {
              x: Boundary.width * j,
              y: Boundary.height * i
            },
            image: createImage('./img/pipeCorner2.png')
          })
        )
        break
      case '3':
        boundaries.push(
          new Boundary({
            position: {
              x: Boundary.width * j,
              y: Boundary.height * i
            },
            image: createImage('./img/pipeCorner3.png')
          })
        )
        break
      case '4':
        boundaries.push(
          new Boundary({
            position: {
              x: Boundary.width * j,
              y: Boundary.height * i
            },
            image: createImage('./img/pipeCorner4.png')
          })
        )
        break
      case 'b':
        boundaries.push(
          new Boundary({
            position: {
              x: Boundary.width * j,
              y: Boundary.height * i
            },
            image: createImage('./img/block.png')
          })
        )
        break
      case '[':
        boundaries.push(
          new Boundary({
            position: {
              x: j * Boundary.width,
              y: i * Boundary.height
            },
            image: createImage('./img/capLeft.png')
          })
        )
        break
      case ']':
        boundaries.push(
          new Boundary({
            position: {
              x: j * Boundary.width,
              y: i * Boundary.height
            },
            image: createImage('./img/capRight.png')
          })
        )
        break
      case '_':
        boundaries.push(
          new Boundary({
            position: {
              x: j * Boundary.width,
              y: i * Boundary.height
            },
            image: createImage('./img/capBottom.png')
          })
        )
        break
      case '^':
        boundaries.push(
          new Boundary({
            position: {
              x: j * Boundary.width,
              y: i * Boundary.height
            },
            image: createImage('./img/capTop.png')
          })
        )
        break
      case '+':
        boundaries.push(
          new Boundary({
            position: {
              x: j * Boundary.width,
              y: i * Boundary.height
            },
            image: createImage('./img/pipeCross.png')
          })
        )
        break
      case '5':
        boundaries.push(
          new Boundary({
            position: {
              x: j * Boundary.width,
              y: i * Boundary.height
            },
            color: 'blue',
            image: createImage('./img/pipeConnectorTop.png')
          })
        )
        break
      case '6':
        boundaries.push(
          new Boundary({
            position: {
              x: j * Boundary.width,
              y: i * Boundary.height
            },
            color: 'blue',
            image: createImage('./img/pipeConnectorRight.png')
          })
        )
        break
      case '7':
        boundaries.push(
          new Boundary({
            position: {
              x: j * Boundary.width,
              y: i * Boundary.height
            },
            color: 'blue',
            image: createImage('./img/pipeConnectorBottom.png')
          })
        )
        break
      case '8':
        boundaries.push(
          new Boundary({
            position: {
              x: j * Boundary.width,
              y: i * Boundary.height
            },
            image: createImage('./img/pipeConnectorLeft.png')
          })
        )
        break
      case '.':
        pellets.push(
          new Pellet({
            position: {
              x: j * Boundary.width + Boundary.width / 2,
              y: i * Boundary.height + Boundary.height / 2
            }
          })
        )
        break
    }
  })
})

Thxx!