cocos2d for iPhone » Topic: What's best way to set a layer to do not render with CCTMXTiledMap?

Dad on "What's best way to set a layer to do not render with CCTMXTiledMap?"

Dad — Fri, 09 Jul 2010 05:03:32 +0000

You might want to use Object layers (which aren't drawn and thus don't get spritesheets etc) for your layer information. Good tutorials on that at http://www.raywenderlich.com/1163/how-to-make-a-tile-based-game-with-cocos2d

He uses an object layer for the spawn points and so on.

Verisutha on "What's best way to set a layer to do not render with CCTMXTiledMap?"

Verisutha — Sat, 15 May 2010 15:05:05 +0000

The other question is how many different tiles are you using on the marking map? I would think you would only have a couple, in which case it probably won't effect the outcome very much if it generates a single small sprite.

Just don't waste an entire 1024 texture for a marking layer.

If you give us a little more insight as to what you are trying to accomplish we might be able to help better.

Regards,

Veri

hexdump on "What's best way to set a layer to do not render with CCTMXTiledMap?"

hexdump — Sat, 15 May 2010 09:20:29 +0000

Hi again,

Sorry I forgot to ask a little question before. I suppose that when loading a layer anyway it is info or not, cocos2d will generate a bunch of sprites for it. Is there anyway to free all this sprites to get some mem back? I won't need it because I just used the tilesInfo data.

Thanks in advance,
HexDump.

hexdump on "What's best way to set a layer to do not render with CCTMXTiledMap?"

hexdump — Sat, 15 May 2010 09:14:19 +0000

Thanks a lot for the answers :).

HexDump.

Verisutha on "What's best way to set a layer to do not render with CCTMXTiledMap?"

Verisutha — Fri, 14 May 2010 22:18:19 +0000

CCTMXlayer *myInfoLayer = [<your tilemap> layerNamed:@"layername"];
myInfoLayer.visable = NO;

Keep in mind "layername" is the name you gave your layer that you want hidden in TileD. <your tilemap> is your main CCTMXTiledMap.

That will prevent the layer from being drawn.

Hope this helps.

Questor on "What's best way to set a layer to do not render with CCTMXTiledMap?"

Questor — Fri, 14 May 2010 16:27:59 +0000

hexdump,

If you don't want render a given tilemap, then just don't add it as a child to a layer.

Hope this helps,
Q

hexdump on "What's best way to set a layer to do not render with CCTMXTiledMap?"

hexdump — Fri, 14 May 2010 11:39:38 +0000

Hi,

I have found this in the docs:

Technical description: Each layer is created using an TMXLayer (subclass of CCSpriteSheet). If you have 5 layers, then 5 TMXLayer will be created, unless the layer visibility is off. In that case, the layer won't be created at all. You can obtain the layers (TMXLayer objects) at runtime by:

First of all, how can I set this visiblity to off in tiled? Is it settig opacity to 0? Is it a property of the layer?.

In the other hand, I have layers that are just information, what's the best way to make them not render? I have though about loading the map, and then do a removeChild from the node they are attached, but don't know if this is the correct way to do it.

Thanks in advance,
HexDump.