js

gistfile1.js

(function() {
  var __indexOf = Array.prototype.indexOf || function(item) {
    for (var i = 0, l = this.length; i < l; i++) {
      if (this[i] === item) return i;
    }
    return -1;
  };
  window.onload = function() {
    var generateWorld, getDistance, getRange;
    Crafty.cfg = {
      sprite: "source/sprite.png",
      width: 800,
      height: 640,
      tile: 16,
      w_tiles: 50,
      h_tiles: 40
    };
    getDistance = function(tiles) {
      return tiles * Crafty.cfg["tile"];
    };
    getRange = function(first, last, axis) {
      var tiles, _i, _ref, _ref2, _results;
      tiles = axis === "x" ? Crafty.cfg["w_tiles"] : Crafty.cfg["h_tiles"];
      return (function() {
        _results = [];
        for (var _i = _ref = 0 + first, _ref2 = tiles + last; _ref <= _ref2 ? _i < _ref2 : _i > _ref2; _ref <= _ref2 ? _i++ : _i--){ _results.push(_i); }
        return _results;
      }).apply(this);
    };
    Crafty.init(Crafty.cfg["width"], Crafty.cfg["height"]);
    Crafty.canvas.init();
    Crafty.sprite(Crafty.cfg["tile"], Crafty.cfg["sprite"], {
      grass1: [0, 0],
      grass2: [1, 0],
      grass3: [2, 0],
      grass4: [3, 0],
      flower: [0, 1],
      bush1: [0, 2],
      bush2: [1, 2],
      player: [0, 3],
      enemy: [0, 3],
      banana: [4, 0],
      empty: [4, 0]
    });
    generateWorld = function() {
      var grassType, i, j, _i, _len, _ref, _results;
      _ref = getRange(0, 0, "x");
      _results = [];
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        i = _ref[_i];
        _results.push((function() {
          var _j, _len2, _ref2, _results2;
          _ref2 = getRange(0, 0, "y");
          _results2 = [];
          for (_j = 0, _len2 = _ref2.length; _j < _len2; _j++) {
            j = _ref2[_j];
            grassType = Crafty.randRange(1, 4);
            Crafty.e("2D, Canvas, grass" + grassType).attr({
              x: getDistance(i),
              y: getDistance(j)
            });
            if (__indexOf.call(getRange(1, -1, "x"), i) >= 0 && __indexOf.call(getRange(1, -1, "y"), j) >= 0 && Crafty.randRange(0, 30) > 29) {
              Crafty.e("2D, DOM, flower, SpriteAnimation, explodable, solid").attr({
                x: getDistance(i),
                y: getDistance(j),
                z: 1000
              }).animate("wind", 0, 1, 3).animate("wind", 80, -1).bind('explode', function() {
                return this.destroy();
              });
            }
            _results2.push(i === 0 || j === 0 || i === Crafty.cfg["w_tiles"] - 1 || j === Crafty.cfg["h_tiles"] - 1 ? Crafty.e("2D, Canvas, solid, bush" + (Crafty.randRange(1, 2))).attr({
              x: getDistance(i),
              y: getDistance(j),
              z: 2
            }) : void 0);
          }
          return _results2;
        })());
      }
      return _results;
    };
    Crafty.scene("loading", function() {
      Crafty.load([Crafty.cfg["sprite"]], function() {
        return Crafty.scene("main");
      });
      Crafty.background("#000");
      return Crafty.e("2D, DOM, Text").attr({
        w: 100,
        h: 20,
        x: 350,
        y: 310
      }).text("Loading").css({
        "text-align": "center"
      });
    });
    Crafty.scene("main", function() {
      var player;
      generateWorld();
      Crafty.c("Hero", {
        init: function() {
          this.requires("SpriteAnimation, Collision").animate("walk_left", 6, 3, 8).animate("walk_right", 9, 3, 11).animate("walk_up", 3, 3, 5).animate("walk_down", 0, 3, 2).bind("NewDirection", function(direction) {
            if (direction.x < 0 && !this.isPlaying("walk_left")) {
              this.stop().animate("walk_left", 10, -1);
            }
            if (direction.x > 0 && !this.isPlaying("walk_right")) {
              this.stop().animate("walk_right", 10, -1);
            }
            if (direction.y < 0 && !this.isPlaying("walk_up")) {
              this.stop().animate("walk_up", 10, -1);
            }
            if (direction.y > 0 && !this.isPlaying("walk_down")) {
              this.stop().animate("walk_down", 10, -1);
            }
            if (!direction.x && !direction.y) {
              return this.stop();
            }
          }).bind("Moved", function(from) {
            if (this.hit("solid")) {
              return this.attr({
                x: from.x,
                y: from.y
              });
            }
          });
          return this;
        }
      });
      Crafty.c("RightControls", {
        init: function() {
          return this.requires("Multiway");
        },
        rightControls: function(speed) {
          this.multiway(speed, {
            UP_ARROW: -90,
            DOWN_ARROW: 90,
            RIGHT_ARROW: 0,
            LEFT_ARROW: 180
          });
          return this;
        }
      });
      return player = Crafty.e("2D, Canvas, player, RightControls, Hero, Animation, Collision").attr({
        x: 392,
        y: 312,
        z: 1
      }).rightControls(1);
    });
    return Crafty.scene("loading");
  };
}).call(this);

Hi, this should be on github not gist. The code is not self-contained and part of a bigger project. good luck.