Alarm update null pointer

[Deleted user]

Hi,

I am really not sure what is causing this issue, though I am fairly new to all of this. I have been playing arround with the alarm feature of your engine and sometimes (seemingly randomly) there is a null pointer exception. It is within the Entity class where it updates the alarms specificaly here:

if (deadAlarms != null) {
for (String deadAlarm : deadAlarms) {
alarms.put(deadAlarm, null);
}
}

I am fairly certain that it is nothing I have done, though I may be wrong. I really struggle to recreate the bug as I have no idea what is causing it. Here is the stack trace:

Fri Mar 09 10:47:58 GMT 2012 ERROR:null
java.lang.NullPointerException
at java.util.Hashtable.put(Unknown Source)
at it.randomtower.engine.entity.Entity.updateAlarms(Entity.java:766)
at it.randomtower.engine.World.update(World.java:120)
at MainGameState.update(MainGameState.java:73)
at org.newdawn.slick.state.StateBasedGame.update(StateBasedGame.java:268)
at org.newdawn.slick.GameContainer.updateAndRender(GameContainer.java:657)
at org.newdawn.slick.AppGameContainer.gameLoop(AppGameContainer.java:408)
at org.newdawn.slick.AppGameContainer.start(AppGameContainer.java:318)
at SpaceQuest.main(SpaceQuest.java:40)
Fri Mar 09 10:47:58 GMT 2012 ERROR:Game.update() failure - check the game code.
org.newdawn.slick.SlickException: Game.update() failure - check the game code.
at org.newdawn.slick.GameContainer.updateAndRender(GameContainer.java:663)
at org.newdawn.slick.AppGameContainer.gameLoop(AppGameContainer.java:408)
at org.newdawn.slick.AppGameContainer.start(AppGameContainer.java:318)
at SpaceQuest.main(SpaceQuest.java:40)

Thanks,
Andy

[Gornova]

hi! what version of Marteengine are you using? version 0.2 or maybe a snapshot of dev branch?

[Deleted user]

Version 0.2

I have modified MarteEngine to catch the exception for now, though that is a hacky fix. It appears to happen when an entity goes off the rendered section of the screen, though I am still having problems re-creating this bug.

The entity(s) in question have multiple alarms on them that could be triggered at the same time, could this be part of the problem?

[Gornova]

Let us give and example project so we can test it