How do I pick all existing tiles inside a circle ?

Hi !

I don't know if I can be more precise.

I have a landscape made from tiles.

I want to remove/change all tiles in a radius of X tiles when I click on a tile.

How to do that ?

For each tile

distance(tile.x,tile.y,yourcenter.x,yourcenter.y)<radius do stuff

I looked for this kind of condition, but I didn't find it :/

It would depend on what you are doing, or object you are using.

Distance() is a system expression.

On object clicked, for each tile, system compare distance()<radius, do foo.

Tilemaps would be a much different approach.

Here's a little example to get you going

Thank you for your replies

I'm not using sprites, but tiles, and I didn't find any "for each tile" condition.

The only way I see is using two "for" loop (one for X coordinate, one for Y coordinate).

Is this the best way to go ?

Ah, tilemap - yeah, a loop with a check sounds like the way to go.

No such thing as a circle in the tilemap object.

Take a look at the "set tile range" action.

I did like this :

[attachment=0:1etqwah0][/attachment:1etqwah0]

Works well. I spent about one or two hours to figure out I used positionToTile instead of tileToPosition though.

By the way if the global variable blockSize is equal to a tile size I could also write :

loopindex("tileX")*blockSize

instead of

map.tileToPosition(loopindex("tileX"))

and so on.

It's a matter of preference but I don't really like to have too much parenthesis nor dots.

I can't use tile range because I'll need to test every tile in this area later to do stuff.