Create description of BasicPlatformer

index.js

 function create() {
          
          // Make the background color of the game's stage be white (#FFFFFF)
          game.stage.backgroundColor = '#FFFFFF';
          
          // Start the physics system ARCADE
          game.physics.startSystem(Phaser.Physics.ARCADE);

          // Add the tilemap 'map' to the game
          map = game.add.tilemap('map');
          
          // Add the tileset image 'level' to the map
          // (The name must match both an image in Phaser's cache
          //  and the name of an image withi the 'map.json'
          //  list of tilesets too.)
          map.addTilesetImage('level');
          
          // Create a layer from the 'map.json' file
          // based on 'Tile Layer 1' from the available tiles.
          layer = map.createLayer('Tile Layer 1');
          
          // Set the collision range 
          //  Here, the range is from 1 (the first tile) to the fifth (last tile).
          map.setCollisionBetween(1, 5);
          
          // Tell the layer to resize the game 'world' to match its size
          layer.resizeWorld();

          // Create and add a sprite to the game at the position (2*48 x 6 *48)
          // and using, in this case, the spritesheet 'character'
          player = game.add.sprite(2 * 48, 6 * 48, 'character');
          
          // By default, sprites do not have a physics 'body'
          // Before we can adjust its physics properties,
          // we need to add a 'body' by enabling
          // (As a second argument, we can specify the
          //  physics system to use too. However, since we
          //  started the Arcade system already, it will
          //  default to that.)
          game.physics.enable(player);
          
          // Set the amount of bounce on the physics body of the 'player' sprite
          player.body.bounce.y = 0.1;
          
          // Set the amount of gravity to apply to the physics body of the 'player' sprite
          player.body.gravity.y = 96;

          // Tell the game's camera to follow the 'player' sprite
          game.camera.follow(player);

          // Have the game create cursor keys (usually arrow keys)
          //  and save the reference to 'cursors'
          cursors = game.input.keyboard.createCursorKeys();
          
          // Add a specifically named key to the input checked for.
          //  In this case, it is the Keyboard.SPACEBAR
          jumpButton = game.input.keyboard.addKey(Phaser.Keyboard.SPACEBAR);

        }