Try looking at my “SoulHow to make a platform game” article. The example there ends up with a fully-functional platform game with perfect collisions without using solid. It’s usually my most popular tutorial, so you should be able to find a link quickly in the “Popular articles” section of the righthand column.

Thanks

I usually don’t respond to questions here but since these ones aren’t overcomplicated I thought I’d go ahead and write back. ^_^

@3dTestPattern: I don’t tend to experience this, but I can only guess that it’s something to do with the way your sprites’ bounding boxes are lined up with the sprite’s origin. If your sprite(s) either doesn’t (do not) take up the entire frame, or if they’re not centered and symmetrical, a perfectly centered origin probably won’t work.

In this case, take a look at the bounding box numbers for the sprites, and for each origin, change the x value to halfway between the boundary’s “left” and “right” values. For example, if the bounding box’s left is 6 and right is 18, set the sprite origin’s x coordinate to 12. It might also be a good idea to check to make sure the bounding boxes are the same size (width and height) for each related sprite (such as each pose/action for the player); that may require setting the bounding box coordinates manually.

@Cayce: The sign() function basically returns value/abs(value), which gives 1 if the value is positive, and -1 if the value is negative. Therefore, if you input sign(5) you get 1 and sign(-3) you get -1. sign(0) equals 0.

Thanks for the compliments and I hope this helped you guys.

Quick Question though… What exactly is the ‘Sign’ function, and what does it do?… I’ve been using Game Maker 6.1 for a while now, but I’ve never come in contact with that…

Any help would be greatly appreciated! Thanks!
Take Care!

I did notice with this code though that the character can’t quite touch the walls when he’s facing left for some reason, yet the collisions are perfect when he’s facing right. Might this have to do with the mirroring of the sprites?

In any case, is this something you’ve experienced, and if so, do you have any ideas how to fix it? I’m using version 7.0, and I think I followed your example correctly because everything else seems to work fine.

Thanks.