Implement Item Lock

When placed atop an item, you must have that item to enter the tile. When you do, pay the item and destroy the item lock. Also can be placed on top of a bonus, and you must pay that amount of bonus to enter.

js/format-c2g.js

@@ -820,6 +820,11 @@ const TILE_ENCODING = {
         has_next: true,
         extra_args: [arg_direction],
     },
+    0xd7: {
+        name: 'item_lock',
+        has_next: true,
+        is_extension: true,
+    },
     0xe0: {
         name: 'gift_bow',
         has_next: true,

js/game.js

@@ -2646,9 +2646,9 @@ export class Level extends LevelInterface {
         return true;
     }
 
-    take_key_from_actor(actor, name) {
+    take_key_from_actor(actor, name, ignore_infinity = false) {
         if (actor.keyring && (actor.keyring[name] ?? 0) > 0) {
-            if (actor.type.infinite_items && actor.type.infinite_items[name]) {
+            if (!ignore_infinity && actor.type.infinite_items && actor.type.infinite_items[name]) {
                 // Some items can't be taken away normally, by which I mean, green or yellow keys
                 return true;
             }

js/main-editor.js

@@ -1607,6 +1607,7 @@ const EDITOR_PALETTE = [{
         'turntable_ccw',
         'electrified_floor',
         'halo',
+        'item_lock',
         'score_5x',
         'boulder',
         'logic_gate/diode',
@@ -2242,6 +2243,10 @@ const EDITOR_TILE_DESCRIPTIONS = {
         name: "Boulder",
         desc: "Similar to a dirt block, but rolls when pushed. Boulders transfer momentum to each other. Has ice block/frame block collision. Turns into gravel in water. Spreads slime.",
     },
+    item_lock: {
+        name: "Item Lock",
+        desc: "When placed atop an item, you must have that item to enter the tile. When you do, pay the item and destroy the item lock. Also can be placed on top of a bonus, and you must pay that amount of bonus to enter.",
+    },
 };
 
 const SPECIAL_PALETTE_ENTRIES = {

js/tileset.js

@@ -1071,6 +1071,7 @@ export const LL_TILESET_LAYOUT = Object.assign({}, CC2_TILESET_LAYOUT, {
     score_5x: [10, 40],
     spikes: [5, 40],
     boulder: [8, 40],
+    item_lock: [12, 43],
 });
 
 export const TILESET_LAYOUTS = {

js/tiletypes.js

@@ -1171,6 +1171,60 @@ const TILE_TYPES = {
         layer: LAYERS.item_mod,
         item_modifier: 'pickup',
     },
+    item_lock: {
+        layer: LAYERS.item_mod,
+        item_modifier: 'ignore',
+        blocks(me, level, other) {
+            let item = me.cell.get_item();
+            if (item === null) {
+                return false;
+            }
+            if (item.type.name == 'score_10') {
+                return !(other.type.is_real_player && level.bonus_points >= 10);
+            }
+            else if (item.type.name == 'score_100') {
+                return !(other.type.is_real_player && level.bonus_points >= 100);
+            }
+            else if (item.type.name == 'score_1000') {
+                return !(other.type.is_real_player && level.bonus_points >= 1000);
+            }
+            else if (item.type.name == 'score_2x') {
+                return !(other.type.is_real_player && level.bonus_points >= 1);
+            }
+            else if (item.type.name == 'score_5x') {
+                return !(other.type.is_real_player && level.bonus_points >= 1);
+            }
+            return !other.has_item(item.type.name);
+        },
+        on_arrive(me, level, other) {
+            let item = me.cell.get_item();
+            if (item === null) {
+                return;
+            }
+            if (item.type.name == 'score_10') {
+                level.adjust_bonus(-10);
+            }
+            else if (item.type.name == 'score_100') {
+                level.adjust_bonus(-100);
+            }
+            else if (item.type.name == 'score_1000') {
+                level.adjust_bonus(-1000);
+            }
+            else if (item.type.name == 'score_2x') {
+                level.adjust_bonus(0, 1/2);
+            }
+            else if (item.type.name == 'score_5x') {
+                level.adjust_bonus(0, 1/5);
+            }
+            else {
+                level.take_key_from_actor(other, item.type.name, true) || level.take_tool_from_actor(other, item.type.name);
+            }
+            level.sfx.play_once('door', me.cell);
+            level.spawn_animation(me.cell, 'puff');
+            level.remove_tile(me);
+            level.remove_tile(item);
+        },
+    },
 
     // Mechanisms
     dirt_block: {