Add Mars surface atmosphere particels

src/game/level.c

@@ -578,6 +578,15 @@ void level_update(Level *level, float dt) {
         }
     }
 
+    /* Emit ambient atmosphere dust on Mars Surface levels before the
+     * particle update pass so new motes get their first physics step
+     * this frame — consistent with other per-frame emitters. */
+    if (level->map.parallax_style == PARALLAX_STYLE_MARS) {
+        particle_emit_atmosphere_dust(
+            level->camera.pos,
+            level->camera.viewport);
+    }
+
     /* Update particles */
     particle_update(dt);