Added animated item

gulpfile.js

@@ -21,7 +21,7 @@ gulp.task('server', function() {
 });
 
 gulp.task('compile', function() {
-    return gulp.src(['src/entities/*.coffee', 'src/tiles/*.coffee', 'src/tools.coffee', 'src/app.coffee', 'src/game.coffee', 'src/hud.coffee'])
+    return gulp.src(['src/entities/*.coffee', 'src/items/*.coffee', , 'src/tiles/*.coffee', 'src/tools.coffee', 'src/app.coffee', 'src/game.coffee', 'src/hud.coffee'])
         .pipe(sourcemaps.init())
         .pipe(coffee({bare: true}))
         .pipe(concat('app.js'))

src/items/animateditem.coffee

@@ -0,0 +1,15 @@
+class AnimatedItem
+  constructor: (options) ->
+    {@maxFrames, @image}
+
+    @frame = 0
+    window.setInterval @changeAnimation, 500
+
+  sprite: ->
+    [@frame*8, 8, 8, 8]
+
+  changeAnimation: =>
+    if @frame == @maxFrames
+      @frame = 0
+    else
+      @frame += 1