[SOLVED] [1.7.10] Nested events

[WhichOnesPink]

How does Forge handle nested Pre/Post events? For example:

 

MinecraftForge.EVENT_BUS.post(new DecorateBiomeEvent.Pre(worldObj, rand, worldX, worldZ));

... lots of code ...

MinecraftForge.EVENT_BUS.post(new DecorateBiomeEvent.Pre(worldObj, rand, worldX, worldZ));

... more code ...

MinecraftForge.EVENT_BUS.post(new DecorateBiomeEvent.Post(worldObj, rand, worldX, worldZ));

... lots of code ...

MinecraftForge.EVENT_BUS.post(new DecorateBiomeEvent.Post(worldObj, rand, worldX, worldZ));

 

Does the first DecorateBiomeEvent.Post() cancel both of the Pre()'s? Or are events not bound to each other like that?

 

Is it common to see nested events like this, or is it something that should be triggering alarm bells?

[Ernio]

If several or one mod uses same event several times, event handlers will honor:

1. Priority (HIGHEST, HIGH, NORMAL, LOW, LOWEST)

2. Order of adding (registering) (and loading is dependent to mod-loading process, so also mod-dependency order)

In this order.

[LexManos]

Pre and Post events are not bound together like that. Canceling a Post event will do nothing to the Pre, as it's already run. there is no way to 'rewind' events.

[jabelar]

The events are not really "nested" in the sense you think. An event is simply an event, meaning a singular point in time/execution of the code. The PRE event is basically saying I'm starting something, and the POST is saying its finishing something, but there is no real relationship except hopefully the code fires each at the right point.  There is nothing weird about starting a bunch of things before finishing the first thing.

[WhichOnesPink]

Awesome, thanks for the insight guys.