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Fix attribute of block so that it doesn't have errors if referenced target doesn't exist.

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This commit is contained in:
Karishma Chadha 2018-05-03 13:37:45 -04:00
parent 7d36054cf6
commit 9cc34d7406
1 changed files with 5 additions and 0 deletions

5
src/blocks/scratch3_sensing.js
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@ -264,6 +264,11 @@ class Scratch3SensingBlocks {
attrTarget = this.runtime.getSpriteTargetByName(args.OBJECT); attrTarget = this.runtime.getSpriteTargetByName(args.OBJECT);
} }
// attrTarget can be undefined if the target does not exist
// (e.g. single sprite uploaded from larger project referencing
// another sprite that wasn't uploaded)
if (!attrTarget) return 0;
// Generic attributes // Generic attributes
if (attrTarget.isStage) { if (attrTarget.isStage) {
switch (args.PROPERTY) { switch (args.PROPERTY) {