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  X and Y scrolling map?  (Read 2462 times)
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Offline jammas615

Junior Duke


Projects: 1



« Posted 2011-12-27 12:21:29 »

Hey,

I'm trying to think of ways to implement a 2d tiled map that scrolls along the x and y axis.

Does anyone have any ideas or know methods of doing this?

Thanks.

Offline tw0v
« Reply #1 - Posted 2011-12-27 12:23:14 »

is this a side scroller or an rpg aerial view?

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Offline ra4king

JGO Kernel


Medals: 350
Projects: 3
Exp: 5 years


I'm the King!


« Reply #2 - Posted 2011-12-27 13:02:26 »

Have an xOffset and a yOffset variable and you use those to "offset" the world by adding them to the X and Y of all entities when rendering.
This is usually done by a Camera class that has just those two variables and you have that Camera object available to all Entities when they're rendering.

Another way is to just call Graphics2D.translate(xOffset,yOffset) right before you render all the entities. Smiley

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Offline jammas615

Junior Duke


Projects: 1



« Reply #3 - Posted 2011-12-27 20:07:33 »

It's an aerial view.

So I could implement world coordinates and offset the map using those.
     Is that efficient?

Offline ra4king

JGO Kernel


Medals: 350
Projects: 3
Exp: 5 years


I'm the King!


« Reply #4 - Posted 2011-12-27 23:07:30 »

Yep but you shouldn't worry about efficiency until you actually implement something and notice a slowdown.

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