add hero walk graphics, objects atlas packing and refactor components to be records

assets/graphics/objects.atlas

@@ -0,0 +1,258 @@
+
+objects.png
+size: 512, 512
+format: RGBA8888
+filter: Nearest, Nearest
+repeat: none
+hero/walk_down
+  rotate: false
+  xy: 2, 410
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 0
+hero/walk_down
+  rotate: false
+  xy: 2, 342
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 1
+hero/walk_down
+  rotate: false
+  xy: 70, 410
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 2
+hero/walk_down
+  rotate: false
+  xy: 2, 274
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 3
+hero/walk_down
+  rotate: false
+  xy: 70, 342
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 4
+hero/walk_down
+  rotate: false
+  xy: 138, 410
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 5
+hero/walk_down
+  rotate: false
+  xy: 2, 206
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 6
+hero/walk_down
+  rotate: false
+  xy: 70, 274
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 7
+hero/walk_down
+  rotate: false
+  xy: 138, 342
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 8
+hero/walk_left
+  rotate: false
+  xy: 206, 410
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 0
+hero/walk_left
+  rotate: false
+  xy: 2, 138
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 1
+hero/walk_left
+  rotate: false
+  xy: 70, 206
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 2
+hero/walk_left
+  rotate: false
+  xy: 138, 274
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 3
+hero/walk_left
+  rotate: false
+  xy: 206, 342
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 4
+hero/walk_left
+  rotate: false
+  xy: 274, 410
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 5
+hero/walk_left
+  rotate: false
+  xy: 2, 70
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 6
+hero/walk_left
+  rotate: false
+  xy: 70, 138
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 7
+hero/walk_left
+  rotate: false
+  xy: 138, 206
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 8
+hero/walk_right
+  rotate: false
+  xy: 206, 274
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 0
+hero/walk_right
+  rotate: false
+  xy: 274, 342
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 1
+hero/walk_right
+  rotate: false
+  xy: 342, 410
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 2
+hero/walk_right
+  rotate: false
+  xy: 2, 2
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 3
+hero/walk_right
+  rotate: false
+  xy: 70, 70
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 4
+hero/walk_right
+  rotate: false
+  xy: 138, 138
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 5
+hero/walk_right
+  rotate: false
+  xy: 206, 206
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 6
+hero/walk_right
+  rotate: false
+  xy: 274, 274
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 7
+hero/walk_right
+  rotate: false
+  xy: 342, 342
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 8
+hero/walk_up
+  rotate: false
+  xy: 410, 410
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 0
+hero/walk_up
+  rotate: false
+  xy: 70, 2
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 1
+hero/walk_up
+  rotate: false
+  xy: 138, 70
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 2
+hero/walk_up
+  rotate: false
+  xy: 206, 138
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 3
+hero/walk_up
+  rotate: false
+  xy: 274, 206
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 4
+hero/walk_up
+  rotate: false
+  xy: 342, 274
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 5
+hero/walk_up
+  rotate: false
+  xy: 410, 342
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 6
+hero/walk_up
+  rotate: false
+  xy: 138, 2
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 7
+hero/walk_up
+  rotate: false
+  xy: 206, 70
+  size: 64, 64
+  orig: 64, 64
+  offset: 0, 0
+  index: 8