Setting pixelPerfect when input enabling a Container would cause it to crash, because Container's don't have a texture to check. It will now throw a run-time warning and skip the Container for input. You should use a custom input callback instead. Fix phaserjs#4492

Author: photonstorm

CHANGELOG.md

@@ -178,6 +178,7 @@ Notes:
 * `InputPlugin.clear` has a new argument `skipQueue` which is used to avoid clearing a Game Object twice. This, combined with the fix for 4463 means you will no longer get a `Cannot read property 'dragState'` error if you destroy a Game Object enabled for drag where another draggable object exists. Fix #4228 (thanks @YannCaron)
 * `Phaser.Physics.Arcade.Events` is now exposed in the namespace, preventing it from erroring if you use them in TypeScript. Fix #4481 (thanks @danielalves)
 * `UpdateList.remove` will now move the removed child to the internal `_pendingRemoval` array, instead of slicing it directly out of the active list. The pending list is cleared at the start of the next game frame. Fix #4365 (thanks @jcyuan)
+* Setting `pixelPerfect` when input enabling a Container would cause it to crash, because Containers don't have a texture to check. It will now throw a run-time warning and skip the Container for input. You should use a custom input callback instead. Fix #4492 (thanks @BigZaphod)
 
 ### Examples, Documentation and TypeScript
 

src/input/InputPlugin.js

@@ -1745,6 +1745,7 @@ var InputPlugin = new Class({
         var dropZone = false;
         var cursor = false;
         var useHandCursor = false;
+        var pixelPerfect = false;
 
         //  Config object?
         if (IsPlainObject(shape))
@@ -1758,7 +1759,7 @@ var InputPlugin = new Class({
             cursor = GetFastValue(config, 'cursor', false);
             useHandCursor = GetFastValue(config, 'useHandCursor', false);
 
-            var pixelPerfect = GetFastValue(config, 'pixelPerfect', false);
+            pixelPerfect = GetFastValue(config, 'pixelPerfect', false);
             var alphaTolerance = GetFastValue(config, 'alphaTolerance', 1);
 
             if (pixelPerfect)
@@ -1783,6 +1784,12 @@ var InputPlugin = new Class({
         {
             var gameObject = gameObjects[i];
 
+            if (pixelPerfect && gameObject.type === 'Container')
+            {
+                console.warn('Cannot pixelPerfect test a Container. Use a custom callback.');
+                continue;
+            }
+
             var io = (!gameObject.input) ? CreateInteractiveObject(gameObject, shape, callback) : gameObject.input;
 
             io.customHitArea = true;