feat(entities): andamiatge del sistema d'entitats (classes, factory, bus, YAML, placeholders, smoke tests)

data/entities/door/door.yaml

@@ -0,0 +1,18 @@
+name: door
+type: interactable
+sprite:
+  path: door.gif
+  size: [16, 16]
+tile_size: [1, 1]
+flags:
+  collides: true
+  interactable: true
+animations:
+  closed:  { frames: [0], fps: 1, loop: true }
+  opening: { frames: [0], fps: 6, loop: false }
+  open:    { frames: [0], fps: 1, loop: true }
+behaviour:
+  states: [CLOSED, OPENING, OPEN]
+  initial_state: CLOSED
+  opens_when: all_sarcophagi_open
+  on_player_contact_when_open: level_complete