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updated README with group

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Enrique García Cota 2012-03-04 23:06:29 +01:00
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@ -126,6 +126,28 @@ You can use the @triggerAll@ method to trigger all observed events (this will be
Note that you can pass parameters to @triggerAll@. These will be passed to all callbacks (make sure that they are prepared for this, or you will get errors).
h1. Groups of events
Sometimes it makes sense to group several events together, so they can be easily discarded.
You can use the @group@ method to do just that.
On the following example, @movePlayerUp/Down/Left/Right@ are functions defined elsewhere.
<pre> local player = {} -- player could be any Lua object
...
beholder.group(player, function()
beholder.observe("up", movePlayerUp)
beholder.observe("down", movePlayerDown)
beholder.observe("left", movePlayerLeft)
beholder.observe("right", movePlayerRight)
end)</pre>
Once these observations are setup, you can stop observing them in a single line:
<pre>beholder.stopObserving(player)</pre>
h1. Installation