Platform movement engine

This thing is awsome, i had so much trouble trying to do the platform thing myself, but this helped alot.

wow! I think this is a bug when you go right/left on the ladder you go down.

I tried many different platform engines but this one seems to be the simplest.Thank You.

You, sir, are awesome.

The ladder thing never worked for me, wierd... The nicest feature is the slant movement.

Awesome! Really helped me out.

GREAT!!

Wonderful. Only thing I don't like is when moving down a slope, you don't slide along it like normal, but kinda bounce downward.

But I use it anyway! So simple!

very nice but is there any way to stop it from makign you go downwards when you go onto a slope thats like this /
not sure if its a sprite issue aor a code issue

Im a newb at this.....so i kinda dont know how to actually make it work...im sooo sad.

Is awesome!, really amazing, but if i wanna move with other keys like z,x,c or d . How i can write them in the script, becuase i already tried keyboard_check(vk_z), for example, and doesn`t happen anything, please help me , i need it for my multiplayer game.

I keep getting this message. What should I do
COMPILATION ERROR in Script: Platform movement
Error in code at line 5:
gravity := argument2;

at position 10: Variable name expected.
I'm not sure what the variable name should be, as I already have put in variables for gravity and vspeed.

nevermind i found the problem, now it says i need an assignment operator. I'm sure I'll find it tho at some point. Thanks for the script tho its better than having to make one myself.

This is fantastic. iv realy struggled myself when trying to create code for a platform game, but (and here's the but) the jump/falling image i have used two of them, one right one left and it always displays the one facing right! help please!

Sorted it, dont worry! i changed some of the settings to image_speed= 0 and now it works just the way i needed it to. didnt notice some stuff at the bottom of the code! hehe
Thanks all!

I use game maker alot, but I could never figure out the platform motion. I put execute script in the step event of my player object but when I play the game nothing happens! Help me when you can please.

this is copyrite looks alot like MY code there about 80% witch i done when gm 6 first came out

This script is loosely based upon the platform tutorial from Mark Overmars. Almost any platform game that people have made is programmed in a similar manner.

I can assure you that I never stole or even looked at your code before and spamming my reply form won't help you get anywhere other then banned.

i get this error!
"COMPILATION ERROR in Script: script3
Error in code at line 122:

}

at position 4: Symbol } expected"
what do I do?

i fixed that last one, but now i get these errors
"Error in action number 1
of Step Event
for object player:

Error in expression:horizontal speed 4
position 1: Unknown variable horizontal"
and
"Error in action number 1
of Step Event
for object player:

Error in expression:jump speed 10
position 1:Unknown variable jump"

Please tell me what do to

Is there a way to detect whether the object is falling or jumping and give different sprites to them ?

I keep getting this 4 the goin up slope 1
___________________________________________
FATAL ERROR in
action number 1
of Collision Event with object object14
for object object0:

COMPILATION ERROR in code action
Error in code at line 1:
{if place_free(x-argument0,y-i)}

at position 32: Unexpected symbol in expression.

How do you fill these "arguments"
I've tried putting

//argument0
horizontal speed = 4
//argument1
jump speed = 10
//argument2
gravity = 0.3

in the create event, but I'm really not sure what you consider "arguments" and what you want us to do with them.
Kudos for putting effort into making a script like this though. They sure do take a lot of work ;D

Ok I figured it out thanks for the article, It helped me out a ton as I've never used arguments before lol

This is awesome. Completely awesome.

My only complaint is, can you make one that utilizes hspeed and friction, so the character can slide around a bit before stopping? It just looks better that way. Thanks.

Also, what does := do? Is it the same as the = used for setting a variable?

Hi, great script but i have one problem. I set the player to face right when nothing is happening so after just walking left when i stop he turns around, is there a way to fix this ?

___________________________________________
ERROR in
action number 1
of Step Event
for object obj_falling:

Error in code at line 1:
if falling= true{gravity = 0.5}else{gravity = 0}

at position 4: Unknown variable falling

___________________________________________
ERROR in
action number 1
of Step Event
for object obj_falling:

Error in code at line 1:
if falling= true{gravity = 0.5}else{gravity = 0}

at position 4: Unknown variable falling

___________________________________________
ERROR in
action number 1
of Step Event
for object obj_falling:

Error in code at line 1:
if falling= true{gravity = 0.5}else{gravity = 0}

at position 4: Unknown variable falling

___________________________________________
ERROR in
action number 1
of Step Event
for object obj_falling:

Error in code at line 1:
if falling= true{gravity = 0.5}else{gravity = 0}

at position 4: Unknown variable falling

___________________________________________
ERROR in
action number 1
of Step Event
for object obj_falling:

Error in code at line 1:
if falling= true{gravity = 0.5}else{gravity = 0}

at position 4: Unknown variable falling

___________________________________________
ERROR in
action number 1
of Step Event
for object obj_falling:

Error in code at line 1:
if falling= true{gravity = 0.5}else{gravity = 0}

at position 4: Unknown variable falling

Where must i write the name of sprite?
//sprite_index := ...; sprite stand still

Do I replace the sprite_index with the name of the sprite?

So cool. too cool. way too cool. you need to take some of the coolness away. Just too cool. AWESOME!!!!!!!!

dosent work
but still good work

how would I go about adding double jumping to this?

how does it works

I just dont get it, how the **** do i get it working?? (i am a a total noob on everything that has something to do with scripts....)

It doesn't work, when I start my game Zero stands on the air (I'm making a Megaman Zero game)
The gravity doen't work here... it can't move either

Ik zocht naar gravity waarmee op hellingen kan lopen en dat heb ik nu gevonden. Bedankt Simon

XDXDXD

Going down ramps seems to be rather rough, but up is fine. Any way to fix it? My friend told me to check for down before forward.

Lets see if I can help with a few of these qs.

How do I use this?

Start off in Advanced Mode in GM7. Then go to resources and select "Create Script". Copy and paste this code into the notepad and give it a name. Click check mark.

Now, double click you character's object and click "Add Event". Select "Step" and "Step". Click on the "control" tab over there on the right and in the category "Code" drag the piece of paper with the "play" symbol over to the Action section. A window opens. Select the script, and underneath it replace all the arguments with the arguments he gives you in the comment of this script. Done.

How do I change the "Up" button into a letter (Z will be the example)?

Replace "vk_up" with "ord("Z"" (without the outer quotations).

That's all I know for now...

this might not be the place to ask, but could you please include somesort of tutorial on how to incorporate jumpthroough platforms using this engine, im finding it very hard.

why can't i move?

Ok for those of you with problems:

1.
You have to name all the arguments as variables in create object.

2.
You must read the captions and insert the sprites for your character.

To the writer of this script: Thank you, this has been very helpful.

Thank you so much Simon! this is going to help me a lot with a game i'm trying to make.

And don't worry, i'll make sure i'll attribute your work in my game (I read the license).

Thanks!

very awsome!!!!!!!!!!!!!

It want work why?

I mean my monster going amok when i activate that script ...
Yes it is under the step event dont worry but still it are not working ...
WHY ???

Really good working platform movement engine. I will use it in platform games!


MBeentjes.
You'll know me from NGMC

Really good working platform movement engine. I will use it in platform games!


MBeentjes.
You'll know me from NGMC

Thanks dude. i found this thing like 4 years ago but it iz still da best!!! by the way u should start updating this again

don't put gravity in your move engine, if you have a script designated to gravity, you can apply it to other objects, then again, I guess it would probably run fastest if you just had both

bami nasi

I'm using it in Totem Islands.