feat: heatmap time decay also in addition of placements

polylan_submitter/place/api.py

@@ -12,6 +12,7 @@ from games.decorators import require_game_enabled
 from .canvas import read_canvas
 from .gif import build_evolution_gif
 from .heatmap import (
+    DecayMode,
     build_heatmap_decay_gif,
     build_heatmap_evolution_gif,
     build_heatmap_png,
@@ -85,17 +86,20 @@ def heatmap_decay_gif(
     request: HttpRequest,
     event_path: str,
     players: str = "",
-    half_life: int | None = None,
+    half_life: float | None = None,
+    mode: DecayMode = "placements",
 ):
     """Admin-only: the heatmap over time, but heat decays so pixels nobody
     touches anymore fade back to white.
 
     `players` is an optional comma-separated list of usernames to only
-    count those players' placements (combined). `half_life` is in
-    placements, defaults to 10 frames' worth."""
+    count those players' placements (combined). `mode` is "placements"
+    (decay per placement, `half_life` in placements, defaults to 10 frames'
+    worth) or "time" (decay over time, `half_life` in minutes, defaults
+    to 60)."""
     usernames = [name.strip() for name in players.split(",") if name.strip()]
     return HttpResponse(
-        build_heatmap_decay_gif(request.event, usernames, half_life),
+        build_heatmap_decay_gif(request.event, usernames, half_life, mode),
         content_type="image/gif",
     )