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[Sir Cyrus]

Sir Cyrus

HELP: Slopes

Slopes. I can never figure them out.
I have a fairly standard platform engine and I have a slope of 45??. How do I make my character go up the slope?
I've tried various methods, ranging from simply making the character's y value decrease by one whenever it touches the slope, to individually checking each pixel to determine whether the character should move up or not. These tend to be messy and work badly. What would be the easiest way to create a working slope?

[Piers]

Piers

Re: HELP: Slopes

 I'm not sure what program your using so I'll assume GM from what you have said. What I would do is manually move the character in that direction, instead of trying to make the dude automaticly check for slopes.
As in:

Code: [Select]

//Go up the slope to the right
if dudeistouchingtheotherdude and keyboard_check(vk_right){
 y += 1
 x += 1
}

(Sorry for the pretty shitty example, I'm not really in a coding mood right now.)

[mit]

mit

Re: HELP: Slopes

If you look at the gamemaker official tutorial for platformers, you'll see he has a basic staircase. This does similar to:

if place_free( to the left ) then move left
else if place_free ( to the left and up ) then move left and up

Using that sort of idea, it'd be fairly simple to make a loop of how much up you're checking, and move to there (you'd probably want to make him move less if the slope is steeper).

For going down slopes, do the same thing. Just move it down instead. The character will cling to the slope, but it's better than moving to the side and then falling again and again.

EDIT: For obvious reasons, check for going down before checking for going up. Only move up if you can't go down...

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[Sir Cyrus]

Sir Cyrus

Re: HELP: Slopes

That's a damn good idea, I'll try it now.
And yes, I'm using Game Maker.