Add a centerPivot function

sajmoni · Nov 19, 2022 · 56c1985 · 56c1985
1 parent 6abb53c
commit 56c1985
Show file tree

Hide file tree

Showing 2 changed files with 19 additions and 1 deletion.
diff --git a/src/helpers.ts b/src/helpers.ts
@@ -52,6 +52,10 @@ export const getHeight = (object: Container): number => {
   return object.height
 }
 
+export const centerPivot = (container: Container): void => {
+  container.pivot.set(container.width / 2, container.height / 2)
+}
+
 export const centerX = (container: Container, xPosition: number): void => {
   container.x = xPosition
   container.pivot.x = container.width / 2

diff --git a/test/test.ts b/test/test.ts
@@ -1,6 +1,6 @@
 import test from 'ava'
 import * as ex from 'pixi-ex'
-import { Container, Graphics, Assets } from 'pixi.js'
+import { Container, Graphics, Assets, Sprite } from 'pixi.js'
 
 import * as internal from '../src/internal'
 
@@ -106,3 +106,17 @@ test('centerY', (t) => {
   t.is(displayObject.y, 500)
   t.is(displayObject.pivot.y, 50)
 })
+
+test('centerPivot', (t) => {
+  const container = new Container()
+  const sprite = new Sprite()
+  sprite.height = 200
+  sprite.width = 300
+  container.addChild(sprite)
+
+  t.is(container.pivot.x, 0)
+  t.is(container.pivot.y, 0)
+  ex.centerPivot(container)
+  t.is(container.pivot.x, 150)
+  t.is(container.pivot.y, 100)
+})