functional on 1.21.90

Construct[BP]/scripts/utils.js

@@ -1,5 +1,7 @@
 import { system, EntityComponentTypes } from '@minecraft/server';
 import { FormCancelationReason } from '@minecraft/server-ui';
+import { specialItemPlacementConversions } from './data';
+import { blocks } from './blocks';
 
 export async function forceShow(player, form, timeout = Infinity) {
     const startTick = system.currentTick;
@@ -24,4 +26,36 @@ export function fetchMatchingItemSlot(entity, itemToMatchId) {
         if (itemSlot.hasItem() && itemSlot?.typeId === itemToMatchId)
             return itemSlot;
     }
+}
+
+export function placeBlock(player, placedBlock, blockToPlace, itemSlotToConsume = void 0) {
+    system.run(() => {
+        if (itemSlotToConsume)
+            consumeItem(itemSlotToConsume);
+        placedBlock.setPermutation(blockToPlace);
+        playBlockPlacementSound(player, placedBlock, blockToPlace);
+    });
+}
+
+function consumeItem(itemSlot) {
+    if (specialItemPlacementConversions[itemSlot.typeId.replace('minecraft:', '')]) {
+        itemSlot.setItem(new ItemStack(specialItemPlacementConversions[itemSlot.typeId.replace('minecraft:', '')]));
+    } else {
+        if (itemSlot.amount === 1)
+            itemSlot.setItem(void 0);
+        else
+            itemSlot.amount--;
+    }
+}
+
+function playBlockPlacementSound(player, block, structureBlock) {
+    const blockId = structureBlock.type.id.replace('minecraft:', '');
+    const blockData = blocks[blockId];
+    let blockSound = blockData['sound'] || 'stone';
+    if (['glass', 'terracotta'].includes(blockSound))
+        blockSound = 'stone';
+    let blockSoundId = 'dig.' + blockSound;
+    if (['iron', 'calcite'].includes(blockSound))
+        blockSoundId = 'place.' + blockSound;
+    player.dimension.playSound(blockSoundId, block.location);
 }