Cleanup

sim.c

@@ -106,14 +106,15 @@ static void oper_movement_phase0(Gbuffer gbuf, Mbuffer mbuf, Usz const height,
     return;
   }
   Glyph* at_dest = gbuf + (Usz)y0 * width + (Usz)x0;
-  if (*at_dest != '.') {
+  if (*at_dest == '.') {
+    *at_dest = actual_char;
+    mbuffer_poke_flags_or(mbuf, height, width, (Usz)y0, (Usz)x0,
+                          Mark_flag_sleep);
+    gbuf[y * width + x] = '.';
+  } else {
     gbuf[y * width + x] = '*';
     mbuffer_poke_flags_or(mbuf, height, width, y, x, Mark_flag_sleep);
-    return;
   }
-  *at_dest = actual_char;
-  mbuffer_poke_flags_or(mbuf, height, width, (Usz)y0, (Usz)x0, Mark_flag_sleep);
-  gbuf[y * width + x] = '.';
 }
 
 typedef struct {