Gamemaker Slopes Tutorial! (Platformer Part 6) 

"I love your videos, they help me learn and develop my own games! Please! Keep it up for a long time!"

i swear, these are probably the best game maker tutorials out there. i am actually getting stuff that previously threw me into an endless cycle of restarting my project over and over done now.

spent solid 20 minutes trying figuring out why the player sprite was shaking so much while running up. Found out that xSpd = 0 was outside the else bracket... fml

The tutorials are so high quality. And those small pieces of advice u occasionally give about how to approach the tutorial/what to be careful of, are accurate and very helpful.

I had a really strange problem with this, I followed everything in order I've been checking for hours now and I can't figure out why the character starts to just levitate instead falling, it was working until i reached near the last minutes of the video, then the character just doesn't fall The strangest part is that I can go down slopes and everything but the moment I press the spacebar the character stops falling I think I have to start form scratch I can't do anything to fix it EDIIITTT!!!! I FINALLY MADE IT, IT WOOORKSSSS!!!!! The solution: in minute 21:56 we can see that the "yspd = 0;" it's inside of the "if" that starts at line 118, I had it outside, so the code wasn't checking for that, now it's doing it, now Maria falls again, NEVER GIVE UP

anyone else have spotty results walking down slopes at dif speeds? It works with the movement values in the vid but after setting walk and run speeds to 1 and 2 and colliding with a wall once, the player skips down the steps again

Collisions, they’re touchy… yes they are things touching hhaha

I have spent probably 20 hours over my first two months of coding experience trying to figure this out. I got so excited when I saw this was a planned episode. I can now... finally... go up and down slopes!! Thank you Peyton, this unlocks so much for me and my silly little game.

Definitely going to have to watch this one when I get off work today thank you so much

Hello, Ive been following along your tutorial but I ran into something strange, when going down a slope, if you change directions halfway and try to climb that same slope, the player object cannot move in that direction and gets kinda stuck as if there was a wall in front of him, you can only jump or move down the slope. Also, while going down slopes is smooth when you start from flat terrain, if you go up a slope and then turn around midway, the character kinda goes airborne for a bit instead of smoothly going down. This only happens with 45 degree slopes since those are the only ones I plan to use in the game. Any idea what may be causing it or how to fix it?

Hey this series is really great! I do have an important question though, my game DOES have those uncommon slopes since i have more sonic-like terrain, how could i alter the slope code to account moving up and down those steeper than 45 degree slopes? (dont need 360 degree sonic movement just steeper slope help, maybe up to 90 degrees?) or is this going to be something touched on in the next parts? thanks again for these series!!

12:24 That 'sorry' was so genuine! Its ok man we all want our code to look nice you dont have to worry!!!

I fucking love u bro

Amazing. I've been learning a lot from your vids so yeah... thx. (Honestly, my dream goal for slopes would be the ones that i usually see in sonic games, but this works just fine)❤❤

The best gms 2 guides I've seen so far, ngl. Keep it up, buddy:3

Can this slope code work with higher resolution objects? I am trying to do a game with 256 x 256 pixel wall blocks and a similarly sized player character (I just like smooth detail) . when I try to go up slopes with this code, it won't go unless I raise the subpixel number by at least a factor of 16 and even then it is super twitchy. Any ideas?

I really appreciate the work you've put into this. One thing I've struggled a bit is that my character is stuck in an idle sprite when going up and down slopes unless I've stretched out the slope until its just gentle enough. I wonder if I've done something wrong during the coding process to cause this kind of irregularity?

Hello,your work is amazing, thanks for doing all this tutorials,it's help me and other a lot ! I had a question about those slope though, Can we make them slippery ? maybe you already say it so i'm sorry if this question is kind of annoying.

Dude, I cannot THANK YOU enough for doing this! You're tutorial for this genre has been stellar and you're way of explaining what's happening as you speed through is so critical. I'm a complete noob to making games, but it's always been a true dream/ passion to get this started. Running through this to build a foundation as I learn (coding is so hard to understand sometimes lol) and adding my own flare has been beyond fun. I hope you get ALL the credit and recognition you deserve for going out of your way to make this for people just like myself. Thank you for helping us get a foot in the door! Last, where did you learn to code? Any suggestions aside from "just do it" to help better my understanding of core concepts and problem solving?

I'm thinking there needs to be a friction modifier when hitting a ceiling slope. It feels wrong to move up the same height as a normal jump. What I'm doing for now, is subtracting from the jump hold timer in each ceiling slope meeting event(so right after(or right before should be fine) setting _slopeSlide to be true). I think this works. Feels kinda band-aidy, but in terms of game feel, it makes more sense the the friction of fighting the slope makes it harder to climb further up. I think ideally, the jump speed should be reduced, so it looks a little slower too. But imo it doesn't seem to noticeable that we're jumping at the same speed against a slope and otherwise.

yknow, you've been a huge inspiration for me, so i wanted to ask, is maria your own character? if so, i would like to include her as a playable character for ny platformer, unlockable if someone looks at the credits and clicks your name

Also, dumb question, but whenever I'm in the code, my mouse cursor goes invisible. Any way to fix it?

If you wanted the character to be able to walk up walls or walk along the ceiling, could you just use the angle (rotation) of the player sprite and apply gravity using the same angle (rotation) of the player sprite and converting from the polar coordinates to x, and y (where maybe the theta might be the speed the player is "falling" / speed the player has accumulated due to gravity)? I feel like that would get you fairly close because so much of the movement is based on the effect gravity is having on the player object.

does this work on higher resolution slopes? (for going down slopes) also i noticed after this turorial that if i spam the space bar fast enough (4 cps) i will be able to keep jumping infinitely and my sprite doesnt change to the jumping sprite until i stop spamming (also i skipped coyote time and hold to jump higher, is that a problem?)

Ok so MOST of this works perfectly fine, very epic and cool work you've done here, BUT I noticed an issue that causes the whole game to crash: If you place a slope in the air (pointy end down) and place a block directly underneath said-slope, the game crashes whenever the player jumps into the slope from either side. At first I thought the game was crashing because the slope was trying to push the player into the block, but since it crashes when the player touches the other side of the slope (which is flat), that's probably not the case. This issue is probably never gonna come up in normal gameplay because placing walls and slopes like this looks pretty strange, but I wanted to try to fix it anyways and I was just curious if you already ran into this issue and already know why it crashes. Here is the error I get when the game crashes, in case that helps. I moved my code to the create event so I could put it in a state machine, but the problem was still there before I did that: ERROR in action number 1 of Step Event0 for object oPlayer: Variable .yspd(100137, -2147483648) not set before reading it. at gml_Script_anon@3436@gml_Object_oPlayer_Create_0 (line 440) - && ( _listInst.yspd

Anyone else having the issue that once you reach the bottom of a down slope it freezes the game? I there is an adjacent UP slope it will fling you to that slope, otherwise it freezes? Any help?

Yay! Ive been waiting for slopes

Another great one thanks. see you in #7

thnk you bro this was very helpfull

YOU JUST SAVED ME MONTHS OF WORK, THANKS

By the way, about the sliding down ceiling slopes, would this be whenever we jump into them, hold the jump button on them, or jump into them and hold left/right (depending on the slope direction)?

Great tutorial. I am getting a hard crash every time I try and interact with the left sloped ceiling. I can't figure it out, but it's fine, this isn't really something I'm going to need for my ideal game, but tried my best to follow along the entire time and learned a lot. Onto the next one! I'm sure it's gonna be a shorter.... 2 HOURS?! Time to strap in!

when I'm walking up the slopes my character is very jittery, no clue what I've done wrong.

Hi, sorry but when my character goes up a ramp at a speed greater than 1 pixel it does the strangest thing, it's like phasing bewteen two positions each frame, forward and backward... I can't figure out what the problem is due to I've tried to fix it but I just can't. I even copied the slope code verbatim but no luck....

Hey I've made it this far following along, love it so far thanks for the effort you put into this. I was wondering, could you provide a guide as to how to add a parallax background movement system to this? I am trying to fiddle around in the camera you provided but can't get the layers to move in my step event. Thanks

17:29

8:50

i think this whole series of tutorials is an awesome starter for people that want to get into using game maker studio!!

What if you want the bottom center of the player to be tangent to the slope?

How come you place down multiple slopes instead of just increasing the size of the existing slope?

how do i fix if !_slopeSlide

i cannot go up slopes even though the code is all there, cant figure it out. scratching my head about it. great vid though

You gave me slopes

So good!

Dude don't delete this series!