feat(portals): add craftable portal blocks replacing hardcoded coordinates

Portal frame crafted from obsidian + ender pearl, combined with crystals
(emerald/amethyst/prismarine) to create world-specific portal blocks.
Stepping on a portal block triggers transfer. Includes resource pack with
vanilla textures, block definitions, crafting recipes, and updated script.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docker-compose.yml

@@ -19,6 +19,7 @@ services:
     volumes:
       - lobby-data:/data
       - ./lobby-addon/lobby_transfer_BP:/data/behavior_packs/lobby_transfer_BP
+      - ./lobby-addon/lobby_transfer_RP:/data/resource_packs/lobby_transfer_RP
       - ./addon/spark_pet_BP:/data/behavior_packs/spark_pet_BP
       - ./addon/spark_pet_RP:/data/resource_packs/spark_pet_RP
     restart: unless-stopped

lobby-addon/lobby_transfer_BP/blocks/portal_frame.json

@@ -0,0 +1,28 @@
+{
+  "format_version": "1.21.40",
+  "minecraft:block": {
+    "description": {
+      "identifier": "silverlabs:portal_frame",
+      "menu_category": {
+        "category": "items",
+        "group": "itemGroup.name.decorations"
+      }
+    },
+    "components": {
+      "minecraft:destructible_by_mining": {
+        "seconds_to_destroy": 5.0
+      },
+      "minecraft:destructible_by_explosion": {
+        "explosion_resistance": 1200.0
+      },
+      "minecraft:light_emission": 10,
+      "minecraft:map_color": "#5C6D74",
+      "minecraft:material_instances": {
+        "*": {
+          "texture": "portal_frame",
+          "render_method": "opaque"
+        }
+      }
+    }
+  }
+}

lobby-addon/lobby_transfer_BP/blocks/portal_jamie.json

@@ -0,0 +1,28 @@
+{
+  "format_version": "1.21.40",
+  "minecraft:block": {
+    "description": {
+      "identifier": "silverlabs:portal_jamie",
+      "menu_category": {
+        "category": "items",
+        "group": "itemGroup.name.decorations"
+      }
+    },
+    "components": {
+      "minecraft:destructible_by_mining": {
+        "seconds_to_destroy": 5.0
+      },
+      "minecraft:destructible_by_explosion": {
+        "explosion_resistance": 1200.0
+      },
+      "minecraft:light_emission": 10,
+      "minecraft:map_color": "#2D9C2D",
+      "minecraft:material_instances": {
+        "*": {
+          "texture": "portal_jamie",
+          "render_method": "opaque"
+        }
+      }
+    }
+  }
+}

lobby-addon/lobby_transfer_BP/blocks/portal_lyla.json

@@ -0,0 +1,28 @@
+{
+  "format_version": "1.21.40",
+  "minecraft:block": {
+    "description": {
+      "identifier": "silverlabs:portal_lyla",
+      "menu_category": {
+        "category": "items",
+        "group": "itemGroup.name.decorations"
+      }
+    },
+    "components": {
+      "minecraft:destructible_by_mining": {
+        "seconds_to_destroy": 5.0
+      },
+      "minecraft:destructible_by_explosion": {
+        "explosion_resistance": 1200.0
+      },
+      "minecraft:light_emission": 10,
+      "minecraft:map_color": "#9B59B6",
+      "minecraft:material_instances": {
+        "*": {
+          "texture": "portal_lyla",
+          "render_method": "opaque"
+        }
+      }
+    }
+  }
+}

lobby-addon/lobby_transfer_BP/blocks/portal_mya.json

@@ -0,0 +1,28 @@
+{
+  "format_version": "1.21.40",
+  "minecraft:block": {
+    "description": {
+      "identifier": "silverlabs:portal_mya",
+      "menu_category": {
+        "category": "items",
+        "group": "itemGroup.name.decorations"
+      }
+    },
+    "components": {
+      "minecraft:destructible_by_mining": {
+        "seconds_to_destroy": 5.0
+      },
+      "minecraft:destructible_by_explosion": {
+        "explosion_resistance": 1200.0
+      },
+      "minecraft:light_emission": 10,
+      "minecraft:map_color": "#4FC1E9",
+      "minecraft:material_instances": {
+        "*": {
+          "texture": "portal_mya",
+          "render_method": "opaque"
+        }
+      }
+    }
+  }
+}

lobby-addon/lobby_transfer_BP/manifest.json

@@ -4,7 +4,7 @@
     "name": "Lobby Portal Transfer",
     "description": "Auto-transfers players when they step into portal areas",
     "uuid": "a1b2c3d4-1111-2222-3333-abcdef123456",
-    "version": [1, 0, 4],
+    "version": [1, 1, 0],
     "min_engine_version": [1, 21, 0]
   },
   "modules": [
@@ -12,7 +12,7 @@
       "type": "script",
       "language": "javascript",
       "uuid": "a1b2c3d4-4444-5555-6666-abcdef789012",
-      "version": [1, 0, 4],
+      "version": [1, 1, 0],
       "entry": "scripts/main.js"
     }
   ],
@@ -24,6 +24,10 @@
     {
       "module_name": "@minecraft/server-admin",
       "version": "1.0.0-beta"
+    },
+    {
+      "uuid": "b2c3d4e5-1111-2222-3333-fedcba654321",
+      "version": [1, 0, 0]
     }
   ]
 }

lobby-addon/lobby_transfer_BP/recipes/portal_frame.json

@@ -0,0 +1,25 @@
+{
+  "format_version": "1.21.40",
+  "minecraft:recipe_shaped": {
+    "description": {
+      "identifier": "silverlabs:portal_frame"
+    },
+    "tags": ["crafting_table"],
+    "pattern": [
+      " O ",
+      "OEO",
+      " O "
+    ],
+    "key": {
+      "O": { "item": "minecraft:obsidian" },
+      "E": { "item": "minecraft:ender_pearl" }
+    },
+    "unlock": [
+      { "item": "minecraft:obsidian" }
+    ],
+    "result": {
+      "item": "silverlabs:portal_frame",
+      "count": 1
+    }
+  }
+}

lobby-addon/lobby_transfer_BP/recipes/portal_jamie.json

@@ -0,0 +1,20 @@
+{
+  "format_version": "1.21.40",
+  "minecraft:recipe_shapeless": {
+    "description": {
+      "identifier": "silverlabs:portal_jamie"
+    },
+    "tags": ["crafting_table"],
+    "ingredients": [
+      { "item": "silverlabs:portal_frame" },
+      { "item": "minecraft:emerald" }
+    ],
+    "unlock": [
+      { "item": "silverlabs:portal_frame" }
+    ],
+    "result": {
+      "item": "silverlabs:portal_jamie",
+      "count": 1
+    }
+  }
+}

lobby-addon/lobby_transfer_BP/recipes/portal_lyla.json

@@ -0,0 +1,20 @@
+{
+  "format_version": "1.21.40",
+  "minecraft:recipe_shapeless": {
+    "description": {
+      "identifier": "silverlabs:portal_lyla"
+    },
+    "tags": ["crafting_table"],
+    "ingredients": [
+      { "item": "silverlabs:portal_frame" },
+      { "item": "minecraft:amethyst_shard" }
+    ],
+    "unlock": [
+      { "item": "silverlabs:portal_frame" }
+    ],
+    "result": {
+      "item": "silverlabs:portal_lyla",
+      "count": 1
+    }
+  }
+}

lobby-addon/lobby_transfer_BP/recipes/portal_mya.json

@@ -0,0 +1,20 @@
+{
+  "format_version": "1.21.40",
+  "minecraft:recipe_shapeless": {
+    "description": {
+      "identifier": "silverlabs:portal_mya"
+    },
+    "tags": ["crafting_table"],
+    "ingredients": [
+      { "item": "silverlabs:portal_frame" },
+      { "item": "minecraft:prismarine_crystals" }
+    ],
+    "unlock": [
+      { "item": "silverlabs:portal_frame" }
+    ],
+    "result": {
+      "item": "silverlabs:portal_mya",
+      "count": 1
+    }
+  }
+}

lobby-addon/lobby_transfer_BP/scripts/main.js

@@ -1,16 +1,13 @@
 import { world, system } from "@minecraft/server";
 import { transferPlayer } from "@minecraft/server-admin";
 
-// Portal definitions: name, center position, color, and direct transfer target
+// Portal block → transfer target mapping
-const portals = [
+const PORTAL_BLOCKS = {
-  { name: "Jamie's World", x: -15, y: 65, z: -24, host: "10.0.0.247", port: 19133, color: "§a" },
+  "silverlabs:portal_jamie": { name: "Jamie's World", host: "10.0.0.247", port: 19133, color: "§a" },
-  { name: "Lyla's World",  x: 0,   y: 65, z: -24, host: "10.0.0.247", port: 19134, color: "§d" },
+  "silverlabs:portal_lyla":  { name: "Lyla's World",  host: "10.0.0.247", port: 19134, color: "§d" },
-  { name: "Mya's World",   x: 15,  y: 65, z: -24, host: "10.0.0.247", port: 19135, color: "§b" },
+  "silverlabs:portal_mya":   { name: "Mya's World",   host: "10.0.0.247", port: 19135, color: "§b" },
-];
+};
 
-const PORTAL_RADIUS_X = 2.5;
-const PORTAL_RADIUS_Z = 2.0;
-const PORTAL_RADIUS_Y = 2.0;
 const COOLDOWN_TICKS = 100; // 5 seconds cooldown
 const SPAWN_PROTECTION_TICKS = 200; // 10 seconds — ignore portal detection after spawn
 
@@ -36,24 +33,28 @@ system.runInterval(() => {
     const spawnedAt = spawnTicks.get(playerId) || 0;
     if (system.currentTick - spawnedAt < SPAWN_PROTECTION_TICKS) continue;
 
-    for (const portal of portals) {
+    // Check block at player's feet and one block below
-      const dx = Math.abs(pos.x - portal.x);
+    const dimension = player.dimension;
-      const dy = Math.abs(pos.y - portal.y);
+    const blockAtFeet = dimension.getBlock({ x: Math.floor(pos.x), y: Math.floor(pos.y), z: Math.floor(pos.z) });
-      const dz = Math.abs(pos.z - portal.z);
+    const blockBelow = dimension.getBlock({ x: Math.floor(pos.x), y: Math.floor(pos.y) - 1, z: Math.floor(pos.z) });
 
-      if (dx < PORTAL_RADIUS_X && dy < PORTAL_RADIUS_Y && dz < PORTAL_RADIUS_Z) {
+    const feetId = blockAtFeet?.typeId;
-        cooldowns.set(playerId, system.currentTick);
+    const belowId = blockBelow?.typeId;
-        // Show title notification
+
-        player.runCommand(`titleraw @s title {"rawtext":[{"text":"${portal.color}${portal.name}"}]}`);
+    const portal = PORTAL_BLOCKS[feetId] || PORTAL_BLOCKS[belowId];
-        player.runCommand(`titleraw @s subtitle {"rawtext":[{"text":"§7Transferring..."}]}`);
+    if (!portal) continue;
-        player.sendMessage(`§6Transferring to ${portal.name}...`);
+
-        try {
+    cooldowns.set(playerId, system.currentTick);
-          transferPlayer(player, { hostname: portal.host, port: portal.port });
+    // Teleport player away from the portal block so they don't land on it on return
-        } catch (e) {
+    player.teleport({ x: pos.x, y: pos.y, z: pos.z + 3 });
-          player.sendMessage(`§cTransfer failed: ${e.message}`);
+    // Show title notification
-        }
+    player.runCommand(`titleraw @s title {"rawtext":[{"text":"${portal.color}${portal.name}"}]}`);
-        break;
+    player.runCommand(`titleraw @s subtitle {"rawtext":[{"text":"§7Transferring..."}]}`);
-      }
+    player.sendMessage(`§6Transferring to ${portal.name}...`);
+    try {
+      transferPlayer(player, { hostname: portal.host, port: portal.port });
+    } catch (e) {
+      player.sendMessage(`§cTransfer failed: ${e.message}`);
     }
   }
 }, 10); // Check every half second
@@ -64,45 +65,6 @@ world.afterEvents.playerLeave.subscribe((event) => {
   spawnTicks.delete(event.playerId);
 });
 
-// ─── Place signs above each portal on load ──────────────────────
-
-function placePortalSigns() {
-  const overworld = world.getDimension("overworld");
-  const signs = [
-    { x: -15, y: 70, z: -23, name: "Jamie's", color: "§a" },
-    { x: 0,   y: 70, z: -23, name: "Lyla's",  color: "§d" },
-    { x: 15,  y: 70, z: -23, name: "Mya's",   color: "§b" },
-  ];
-
-  for (const sign of signs) {
-    try {
-      // Place wall sign facing south (toward players approaching from +Z)
-      overworld.runCommand(`setblock ${sign.x} ${sign.y} ${sign.z} oak_wall_sign ["facing_direction":3]`);
-    } catch (e) {
-      // Non-fatal — chunks may not be loaded
-    }
-  }
-
-  // Delay to let sign blocks register, then write text
-  system.runTimeout(() => {
-    for (const sign of signs) {
-      try {
-        const block = overworld.getBlock({ x: sign.x, y: sign.y, z: sign.z });
-        if (!block) continue;
-        const signComponent = block.getComponent("minecraft:sign");
-        if (!signComponent) continue;
-        signComponent.setText(`${sign.color}${sign.name}\n${sign.color}World\n§7▼ Step in ▼`);
-      } catch (e) {
-        // Non-fatal
-      }
-    }
-  }, 10);
-}
-
-system.runTimeout(() => {
-  placePortalSigns();
-}, 40);
-
 system.run(() => {
-  world.sendMessage("§6[Hub] §7Portal transfer system loaded!");
+  world.sendMessage("§6[Hub] §7Portal transfer system loaded! Place portal blocks to create portals.");
 });

lobby-addon/lobby_transfer_RP/manifest.json

@@ -0,0 +1,17 @@
+{
+  "format_version": 2,
+  "header": {
+    "name": "Lobby Portal Transfer Resources",
+    "description": "Textures and lang for craftable portal blocks",
+    "uuid": "b2c3d4e5-1111-2222-3333-fedcba654321",
+    "version": [1, 0, 0],
+    "min_engine_version": [1, 21, 0]
+  },
+  "modules": [
+    {
+      "type": "resources",
+      "uuid": "b2c3d4e5-4444-5555-6666-fedcba987654",
+      "version": [1, 0, 0]
+    }
+  ]
+}

lobby-addon/lobby_transfer_RP/texts/en_US.lang

@@ -0,0 +1,4 @@
+tile.silverlabs:portal_frame.name=Portal Frame
+tile.silverlabs:portal_jamie.name=Jamie's World Portal
+tile.silverlabs:portal_lyla.name=Lyla's World Portal
+tile.silverlabs:portal_mya.name=Mya's World Portal

lobby-addon/lobby_transfer_RP/textures/terrain_texture.json

@@ -0,0 +1,20 @@
+{
+  "resource_pack_name": "lobby_transfer_RP",
+  "texture_name": "atlas.terrain",
+  "padding": 8,
+  "num_mip_levels": 4,
+  "texture_data": {
+    "portal_frame": {
+      "textures": "textures/blocks/end_portal_frame_top"
+    },
+    "portal_jamie": {
+      "textures": "textures/blocks/emerald_block"
+    },
+    "portal_lyla": {
+      "textures": "textures/blocks/amethyst_block"
+    },
+    "portal_mya": {
+      "textures": "textures/blocks/prismarine_bricks"
+    }
+  }
+}