[GML] Side scroller movement

[Jumbofile]

This is an easy tutorial

Go to or make you player object.

make the player object be visible and the depth -5

make a left facing and right facing sprite and set the right sprite as default

add a step event: add an execute code action and insert this code

```

if (place_free(x+0,y+1))

gravity_direction=270;

gravity=0.5;

else

gravity_direction=270;

gravity=0;

if (vspeed>12)

vspeed=12;

```

add a key press event for the key up: add an execute code action and insert this code

```

{

if !(place_free(x+0,y+1))

vspeed=-10;

}

```
Now jumping should work

Make a left walking animation for your character.

Add a key press event for the key left: add an execute code action and insert this code

```

hspeed=-4;

sprite_index= name of sprite for left walk;

image_index=0;

image_speed=1;

```

Make a right walking animations for your character

Add a key press event for the key right: add an execute code action and insert this code

```

hspeed=4;

sprite_index= name of sprite for right walk;

image_index=0;

image_speed=1;

```

Make a key release for left key: add an execute code action and insert this code

```

hspeed=0;

sprite_index= name of sprite facing left

image_index=0;

image_speed=1;

```

Make a key release for right key: add an execute code action and insert this code

```

hspeed=0;

sprite_index= name of sprite facing right

image_index=0;

image_speed=1;

```

You now have to add make a platform so the dont fall out of the screen

Make a sprite 32x32 or 16x16 and fill the square a solid color

make an object called platform and put the default sprite as the sprite you just made.

Add a collision event: add an execute code action and insert this code

```

move_contact_solid(direction,12);

vspeed=0;

```

Paste your platform and you character in a room and you have a walking side scroll character!

[Marsh]

This brings back memories.

Bad ones.

[Marsh]

This brings back memories.

Bad ones.

[Growlith1223]

lol Marshy Dearest, Game Maker ain't so bad x3(except the damn lag if you have too many objects ._.)

[JohnPony]

GM's syntax sucks.

[Marsh]

> GM's syntax sucks.

Syntax is fine, basically the same c++

Try to walk up a slope, there you will find the many many flaws of game maker. Also it ignores way to many errors. That sounds great. except them telling you something wrong is better then just having things go wrong.

[Growlith1223]

> Syntax is fine, basically the same c++
>
> Try to walk up a slope, there you will find the many many flaws of game maker. Also it ignores way to many errors. That sounds great. except them telling you something wrong is better then just having things go wrong.

lol Going up a slope isn't that hard, it's just a few lines of code and you got a perfect slope system

[JohnPony]

> Syntax is fine, basically the same c++
>
> Try to walk up a slope, there you will find the many many flaws of game maker. Also it ignores way to many errors. That sounds great. except them telling you something wrong is better then just having things go wrong.

It doesn't have brackets, something that helps the code to look pretty and organized.

[TheRexion]

Actually, you can use brackets in GML if you want. It recognizes them just the same.