GameMaker Create a loop (MAP)

[TheDuke21]

Hello, I am French, please excuse me in advance for the mistakes.

I would like to know how to create a loop between the start and the end of the level (infinite level)

thank you in advance for your help.

 

[Nocturne]

We need to know a LOT more about the game! What kind of game is it? A vertical scrolling shooter? A platformer? A defender type game? Before we can offer any suggestions we really need to know in detail what it is you want to do...

 

[TheDuke21]

it's a 2D platform game, I would like to make an open world, I would just have to know how to connect the beginning of the map and the end to make an infinite loop, I'm sorry if I express myself badly, I hope at least I was understandable

 

[TheouAegis]

Design your room so at least ½ screen's width of the beginning is the same as the end, and ½ screen-width of the end is the beginning. If the player's x is less than the actual beginning of the room (not 0), move every instance one room width (not room_width) to the right. Likewise, if the player x is greater than the actual end of the room (again, not room_width), move everything to the left one room width.

Bit more difficult with multiplayer.

 

[TheDuke21]

Design your room so at least ½ screen's width of the beginning is the same as the end, and ½ screen-width of the end is the beginning. If the player's x is less than the actual beginning of the room (not 0), move every instance one room width (not room_width) to the right. Likewise, if the player x is greater than the actual end of the room (again, not room_width), move everything to the left one room width.

Bit more difficult with multiplayer.

so thank you for your answer, but i'm looking for a line of code to do this, it would be easier for me. Especially since I'm not sure I understood everything you told me to make an infinite map like an open world. If someone maybe has sites for programming.

Do you have a tutorial on the internet to better explain your answer to me? thank you in advance again for your help

 

[Deleted member 13992]

Is the game world over many rooms or is it all in one room?

Do you want the loop to be completely seamless/invisible to the player? Or is it fine to have a transition (such as a fade to black)?

Are there enemies or objects that move around that might be visible at the end/start?

 

[TheDuke21]

Is the game world over many rooms or is it all in one room?

Do you want the loop to be completely seamless/invisible to the player? Or is it fine to have a transition (such as a fade to black)?

Are there enemies or objects that move around that might be visible at the end/start?

so, its a one room, invisible to the player and yes for last question

my concept is to create a game for my 4-year-old twin, she embodies a unicorn, which attacks automatically, I have started to program a game with the least possible interaction so that she can play freely.

 

[woods]

something to get your started with at least... oversimplified example here ;o)
lets say you have a room that is 2000 wide, and your player starts on the left side of the room...


if (player.x >= 2000)
{
player.x = 0;
}

when the player gets to the far right, (2000 on the x coord) this would effectively wrap your player back to the starting(left) side of the room

 

[Amon]

If it's one big room just use move_wrap();

Link to move_wrap in the manual is below.

GameMaker Manual

 

[TheDuke21]

so that we can agree on the style I want here is an example, if you know "BRAIN / OUT" you will understand what I want as open world if not go see this game available on steam for free.

 

[woods]

@Amon for the win!

a simple move_wrap()
the example in the manual is EXACTLY what you want.. dropped in the player step event

 

[TheouAegis]

move_wrap isn't seamless, it is very garish. It makes more sense with NPCs than the player. The player needs to keep the "view" intact.

if x < camera_get_view_width(view_camera[0])/2 {
    x += room_width - camera_get_view_width(view_camera[0]);
}
else
if x > room_width - camera_get_view_width(view_camera[0])/2 {
      x -= room_width - camera_get_view_width(view_camera[0])
}

And then design your room so the last screen is duplicated at the beginning and the first screen is duplicated at the end.

The alternative is to use data-based tile placement.

 

[TheDuke21]

move_wrap isn't seamless, it is very garish. It makes more sense with NPCs than the player. The player needs to keep the "view" intact.

if x < camera_get_view_width(view_camera[0])/2 {
    x += room_width - camera_get_view_width(view_camera[0]);
}
else
if x > room_width - camera_get_view_width(view_camera[0])/2 {
      x -= room_width - camera_get_view_width(view_camera[0])
}

And then design your room so the last screen is duplicated at the beginning and the first screen is duplicated at the end.

The alternative is to use data-based tile placement.

thank you all for your help, your code looks a lot cleaner to me but i will also try move_wrap, i would take the one that suits me best even if i already have an idea which one

 

[Welvex]

move_wrap isn't seamless, it is very garish. It makes more sense with NPCs than the player. The player needs to keep the "view" intact.

if x < camera_get_view_width(view_camera[0])/2 {
    x += room_width - camera_get_view_width(view_camera[0]);
}
else
if x > room_width - camera_get_view_width(view_camera[0])/2 {
      x -= room_width - camera_get_view_width(view_camera[0])
}

And then design your room so the last screen is duplicated at the beginning and the first screen is duplicated at the end.

The alternative is to use data-based tile placement.

I tried your code and I like how it works, however it is not clean as expected, it has a few pixels lag, how could I solve that? to make it look really clean
Example:
It is not very noticeable, but in the game it is much more noticeable

 

[TheouAegis]

You're right, it's not very noticeable. What am I looking at, exactly?

Make sure you wrap the player after moving, not before. Make sure you update the camera immediately after wrapping the player. Also, make sure you added a buffer to each side of the room that is precisely half the width of the camera's view (which you probably did, since you're using tiles, but it's still important).