Swpan new entities

- Each entity can generate a list of "spawns" (add a new entity)
- Added a "dust" effect to the jump WIP

TODO: probably wrap the entity list in a type so we don't need to pass
the spritesheet to the update function.

2 files changed, 10 insertions, 0 deletions

diff --git a/data/sprites.json b/data/sprites.json
index af3e33e..6fddd4e 100644
--- a/data/sprites.json
+++ b/data/sprites.json
@@ -12,5 +12,15 @@
             [0, 1, 0, 2],
             [5, 4, 5, 3]
         ]
+    },
+    "dust": {
+        "frames": [
+            { "x":  0, "y": 24, "width": 16, "height": 24 },
+            { "x":  16, "y": 24, "width": 16, "height": 24 },
+            { "x":  32, "y": 24, "width": 16, "height": 24 }
+        ],
+        "sets": [
+            [0, 1, 2]
+        ]
     }
 }
diff --git a/data/sprites.png b/data/sprites.png
index 7ee2136..21ef84e 100644
--- a/data/sprites.png
+++ b/data/sprites.png