trace('a');
mapData = t.getData(false);
trace('b');
I have absolutely no idea what's going on here. t is a flixel.tile.FlxTilemap, by the way.
When I run this code, my game instantly crashes. I get the a message but not the b message. Even stranger, I inserted a trace into my copy of FlxTilemap.hx, right at the start of the definition of getData, but that trace never runs either. What is going on?
This is one of those questions, one of those where it's perfectly natural and you simply forget what you did someplace else.
In my case, as was pointed out, t wasn't actually set. This is because I reserved floor number 0 for a special area that hasn't been implemented yet... and set it to null in the meantime...