Example: Simple Platformer Engine

[Bobbyloujo]

A fairly basic example of a platformer. The collisions are decent but not perfect. I haven't done much with DSGM lately so that's why I made this.

[RedLink]

It´s good, but there are many things you should take a look to, for example, when you jump, you can jump again in the air. Maybe you can make it better

[Bobbyloujo]

That's a good point. Easy fix. Within the Button Press A event, create an If statement: "If gravity == 0" then put the "Set Variable gravity to -1300" in a block after the if statement.

[cilein]

@Redlink,
It's an example to get people off the ground, and for his own practice, you should try playing with it, understanding it and then expanding it yourself

[gamebox]

when I got the .DSGM file and looked at the actions an error said that there was an action that I did not have that you used.

[RedLink]

@Redlink,
It's an example to get people off the ground, and for his own practice, you should try playing with it, understanding it and then expanding it yourself

I know, that was just a recommendation

[Bobbyloujo]

when I got the .DSGM file and looked at the actions an error said that there was an action that I did not have that you used.

My apologies. I forgot to mention that I used the "Get BG color" action that Mango made I believe. Search for it.

[mangopearandapples]

Yay! You used my action! Woop!

[Bobbyloujo]

I've been working on this more today. Nearly perfected it. Still some small things but whatever. I might make an actual game out of this.

Go ahead and ask if you need anything explained.

[jace]

This is cool. I think I contributed to it as it was I that requested the action to be made xD

Only joking

It's really good. Well done.

[Bobbyloujo]

I actually made it even better. I'll upload the latest at some point. I made it so you can walk up and down hills.

[jace]

awsome! Please do post!!

[Bobbyloujo]

Alright, it's pretty much as complete as I'm gonna make it right now.

Basic rules to follow:
-He can't walk up hills with a slope steeper than 1.
-If you want the collision map to be a different layer, you have to change all of the "If BG color" actions to work with the new layer.
-There are some glitches. Clever level design and testing your levels will easily fix this.

Sorry that it's not commented very well. If you have questions, just ask.

I posted the wrong .nds file. Sorry. In the finished one, you can't walk into anything with a slope greater than 1.

[cilein]

You could have made a constant or variable to determine the collision map layer to make updating the code handy.

[Bobbyloujo]

Good idea. Done. Just change the global variable 'layer' to layer you want. Also fixed some other stuff. I forgot that I had the variable 'feet' for if you player's feet are always in the middle of the sprite. I had to change some stuff to fix that. There are glitches. For example, if you jump right under the tall wall thing that I put in, it'll carry you to the top of the screen. If you don't want this, don't allow the player to jump under anything tall. I was thinking though, it may be useful for something like an elevator