How do I make a thing react differently to what collided

MIT App Inventor Help
1

I ´ m trying to make a shoot´em up but I don't know how to differentiate the player and the projectile while colliding.

2

When working with multiple Sprites, it helps to init different global lists for your components:

  • players
  • bullets
  • NPCs
  • scenery

Also check out the Any Sprite blocks section, the IS IN LIST test to check if you shot yourself in the foot.

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