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

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

(7 posts) (4 voices)

Started 3 months ago by hexdump
Latest reply from Dad

Tags:

TileMap TMX

hexdump
Member

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.

Posted 3 months ago #
Questor
Member

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

Posted 3 months ago #
Verisutha
Member
```
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.
Posted 3 months ago #
hexdump
Member

Thanks a lot for the answers :).

HexDump.

Posted 3 months ago #
hexdump
Member

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.

Posted 3 months ago #
Verisutha
Member

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

Posted 3 months ago #
Dad
Member

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.

Posted 2 months ago #

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