Guess what mfers, this isn't fully dead yet

lib/layout/tools/saving.dart

@@ -1718,11 +1718,7 @@ class VX {
   }
 
   static String encodeID(String id) {
-    if (stdIDs.containsKey(id) && stdIDs[id] != id) {
-      return '@$id';
-    }
-
-    return inverseIds[id] ?? id;
+    return inverseIds[id] ?? '@$id';
   }
 
   static int decodeRot(String id, num rot) {
@@ -1866,6 +1862,15 @@ class VX {
     "onedir": "onedir",
     "ghost": "ghost",
     "ungeneratable": "ungeneratable",
+    "mobile_trash": "mobile_trash",
+    "mobile_enemy": "mobile_enemy",
+    "strong_enemy": "strong_enemy",
+    "weak_enemy": "weak_enemy",
+    "driller": "driller",
+    "balanced_enemy": "balanced_enemy",
+    "rotational_player": "puzzle",
+    "controllable_mover": "mover_puzzle",
+    "rot_180": "rotator_180",
   };
 
   static final inverseIds = stdIDs.map((key, value) => MapEntry(value, key));

lib/logic/move.dart

@@ -777,6 +777,13 @@ int addedForce(Cell cell, int dir, int force, MoveType mt) {
     return scriptingManager.addedForce(cell, dir, force, mt);
   }
 
+  if(cell.id == "anvil") {
+    final d = (cell.rot-1)%4;
+    if(dir == d) {
+      return -cell.data["velocity"].toInt();
+    }
+  }
+
   if (cell.id == "weight") {
     return -1;
   }
@@ -1095,21 +1102,22 @@ bool nudge(int x, int y, int rot, {MoveType mt = MoveType.unknown_move}) {
   return false;
 }
 
-void doSpeedMover(int x, int y, int dir, int force, int speed) {
+bool doSpeedMover(int x, int y, int dir, int force, int speed) {
   final o = grid.at(x, y).copy;
   for (var i = 0; i < speed; i++) {
     if (!grid.inside(x, y)) {
-      return;
+      return false;
     }
     if (grid.at(x, y).id != o.id) {
-      return;
+      return false;
     }
     if (!push(x, y, dir, force)) {
-      return;
+      return false;
     }
     x = frontX(x, dir);
     y = frontY(y, dir);
   }
+  return true;
 }
 
 void doSpeedPuller(int x, int y, int dir, int force, int speed) {

lib/logic/update/anvil.dart

@@ -2,11 +2,29 @@ part of logic;
 
 void anvil() {
   grid.updateCell((cell, x, y) {
-    final dir = cell.rot;
+    final dir = (cell.rot+1)%4;
     final double gravity = cell.data["gravity"].toDouble();
-    final double velocity = cell.data["velocity"].toDouble();
+    double velocity = cell.data["velocity"].toDouble();
     final double breakingVelocity = cell.data["breaking_velocity"].toDouble();
     final double lossUponLethalImpact = cell.data["impact_loss"].toDouble();
     final double terminalVelocity = cell.data["speed_limit"].toDouble();
+
+    cell.data["velocity"] += gravity;
+    velocity += gravity;
+    if(velocity > terminalVelocity) {
+      velocity = terminalVelocity;
+      cell.data["velocity"] = terminalVelocity;
+    }
+
+    if(doSpeedMover(x, y, dir, velocity.toInt(), velocity.toInt())) {
+      if(velocity >= breakingVelocity) {
+        final dx = frontX(x, dir);
+        final dy = frontY(y, dir);
+        if(grid.inside(dx, dy) && breakable(grid.at(dx, dy), dx, dy, dir, BreakType.gravity)) {
+          grid.set(dx, dy, Cell(dx, dy));
+        }
+      }
+      cell.data["velocity"] = velocity * (1 - lossUponLethalImpact / 100);
+    }
   }, null, "anvil");
 }