Smithing table

server/game/game_server.ts

@@ -12,7 +12,7 @@ import {
 	TICKS_PER_SECOND,
 } from "$/common/constants.ts";
 import { BlockRegistry, EverythingRegistry, ItemRegistry } from "$/common/everything_registry.ts";
-import { click_slot, Container, ItemData, ItemStack, take_output } from "$/common/inventory.ts";
+import { can_take_output, click_slot, Container, ItemData, ItemStack, take_output } from "$/common/inventory.ts";
 import {
 	AIR_ID,
 	BlockChange,
@@ -744,7 +744,8 @@ export class GameServer {
 			}
 		} else if (key === "screen" && player.screen?.layout.slots.find((s) => s.index === index)?.output) {
 			const item = container.get_item(index);
-			if (item && take_output(item, player.cursor)) {
+			const allowed = (item: ItemStack) => player.screen?.on_take.get(index)?.(item) ?? true;
+			if (item && can_take_output(item, player.cursor) && allowed(item) && take_output(item, player.cursor)) {
 				container.set_item(index, undefined);
 			}
 		} else if (

server/game/mod_runtime.ts

@@ -391,6 +391,12 @@ export class ModRuntime {
 				fuel_value: (item) => game().recipes.fuel.get(item) ?? 0,
 				is_fuel: (item) => game().recipes.fuel.has(item),
 				is_smeltable: (item) => game().recipes.furnace.has(item),
+				smithing: (tool, material, addition) => {
+					const recipe = game().recipes.smithing.find((r) =>
+						r.tool === tool && r.material.id === material && r.addition === addition
+					);
+					return recipe && { result: recipe.result, material_count: recipe.material.count };
+				},
 			},
 			containers: {
 				create: (size) => {
@@ -442,7 +448,11 @@ export class ModRuntime {
 		}
 
 		const filters = new Map<number, (item: EngineItemStack) => boolean>();
-		for (const { slot, filter } of options.layout) {
+		const on_take = new Map<number, (item: EngineItemStack) => boolean>();
+		for (const { slot, filter, on_take: take } of options.layout) {
+			if (take) {
+				on_take.set(slot, (item) => run_guarded(mod, "an on_take", () => take(item_api(item))) === true);
+			}
 			if (!Number.isInteger(slot) || slot < 0 || slot >= container.size) {
 				throw new Error(`slot ${slot} isn't in the container, it has ${container.size}`);
 			}
@@ -474,7 +484,14 @@ export class ModRuntime {
 		};
 
 		let open = true;
-		const screen: OpenScreen = { container, layout, properties: {}, filters, on_close: [() => open = false] };
+		const screen: OpenScreen = {
+			container,
+			layout,
+			properties: {},
+			filters,
+			on_take,
+			on_close: [() => open = false],
+		};
 		game.open_screen(server_player, screen);
 
 		return {

server/game/player.ts

@@ -12,6 +12,8 @@ export interface OpenScreen {
 	properties: Record<string, number>;
 	// what can go into each slot, checked when the player clicks
 	filters: Map<number, (item: ItemStack) => boolean>;
+	// asked before a player takes from an output slot
+	on_take: Map<number, (item: ItemStack) => boolean>;
 	on_close: (() => void)[];
 }