Sprites: collisions

In a spriteโ€™s column, under Collisions. Touching another sprite, a solid block, or the edge of the level.

Simple Advanced Expert show the mode each one first appears in. once marks a red condition: it happens once, at a moment. See how to read these pages.

Conditions ยท 4

The When half of a rule.

NameWhat it doesReads as
Collides with another object once
simple
True the moment two objects first touch. Only the copies that touched are picked, so "Destroy" removes just those.
Asks for: Collides with
Ball collides with (choose an object)
Is overlapping another object
advanced
True all the time two objects are touching, not just the first moment.
Asks for: Overlapping
Ball is overlapping (choose an object)
Collides with a background once
simple
True the moment the object touches a solid background, like a wall or the ground.Ball collides with a background
Is overlapping a background
advanced
True all the time the object is touching a solid background.Ball is overlapping a background

Still stuck?

Try the Chocobreak tutorial, open a sample game and read its rules, or look at the questions people ask.