next »

[A_Rival]

Hey there,

I've created a multilayered tiled background which scrolls vertically.  I want to have a platform at the very bottom of the screen which doesn't move, which is about 10 tiles wide and 1 tile high. I can set that particular TileMap's scrollfactor.y to 0, but the actual hitbox seems to keep scrolling while the graphics don't.

I tried to move up the platform in update() the exact amount it scrolled, but the collision gets super finicky and the graphics jiggle around.

Is there a better way to do this?

-A

[Melly]

scrollFactor, in general, is mostly useful for graphical stuff. If you want things to be affected by scrollFactor and collide, then yeah, things get a bit more complicated, and you should probably code the solution yourself, most probably without using scrollFactor (but maybe reading from the related values in FlxG to control the platform's movement).

Honestly, I would just drop scrollFactor for that platform entirely and move it manually by the scroll values. The finicky collision and graphic problems can probably be fixed by placing the movement code before or after the right update() call. It's probably gonna take a bit of fooling around.

That's all in my experience at least.

[A_Rival]

Thanks for your reply!  Was pretty much the exact kind of reply I was looking for.

I'm also working on trying to make downward moving platforms as though the entire stage is moving downward.  It's sort of like and endless elevator.

Any advice?  I'm just gonna rough it but some pitfalls to look out for are always appreciated.

-A

[bart_the_13th]

How about , instead of having the scrolling stuff, you make the platforms move upward, thus creating an illusion that the player is falling down?

[A_Rival]

@bart_the_13th: that's basically what Melly just said.   But definitely it's the preferred method.  Flixel treats platforms moving downward as if they were scrolling anyway, so my entire problem is fixed.  Thanks!

-A