Expose block selection shapes in the data API

lib/loader.js

@@ -11,6 +11,7 @@ function mcDataToNode (mcData) {
     blockStates: mcData.blockStates, // bedrock
 
     blockCollisionShapes: mcData.blockCollisionShapes,
+    blockSelectionShapes: mcData.blockSelectionShapes,
 
     biomes: indexes.biomesById,
     biomesByName: indexes.biomesByName,

test/selectionShapes.js

@@ -0,0 +1,17 @@
+/* eslint-env mocha */
+const assert = require('assert')
+const convert = require('../lib/loader')
+
+describe('selection shapes', () => {
+  it('exports selection data independently of collision data', () => {
+    const collision = { blocks: { wheat: 0 }, shapes: { 0: [] } }
+    const selection = { blocks: { wheat: 0 }, shapes: { 0: [[0, 0, 0, 1, 0.125, 1]] } }
+    const data = convert({ blockCollisionShapes: collision, blockSelectionShapes: selection })
+    assert.strictEqual(data.blockCollisionShapes, collision)
+    assert.strictEqual(data.blockSelectionShapes, selection)
+  })
+
+  it('leaves selection data unavailable for datasets without it', () => {
+    assert.strictEqual(convert({}).blockSelectionShapes, undefined)
+  })
+})

typings/index-template.d.ts

@@ -123,6 +123,9 @@ export interface IndexedData {
    */
   blockCollisionShapes: { blocks: { [name: string]: number | number[] }; shapes: { [id: string]: [number[]] } }
 
+  /** Java selection geometry, when available for this version. */
+  blockSelectionShapes?: BlockSelectionShapes
+
   loginPacket: LoginPacket
 
   items: { [id: number]: Item }