CLASS chg
	FIELD a INSTANCE Lchg;
	FIELD b BEACH_ID I
	FIELD c SNOWY_BEACH_ID I
	FIELD d DESERT_ID I
	FIELD e MOUNTAINS_ID I
	FIELD f WOODED_MOUNTAINS_ID I
	FIELD g FOREST_ID I
	FIELD h JUNGLE_ID I
	FIELD i JUNGLE_EDGE_ID I
	FIELD j JUNGLE_HILLS_ID I
	FIELD k BADLANDS_ID I
	FIELD l WOODED_BADLANDS_PLATEAU_ID I
	FIELD m BADLANDS_PLATEAU_ID I
	FIELD n ERODED_BADLANDS_ID I
	FIELD o MODIFIED_WOODED_BADLANDS_PLATEAU_ID I
	FIELD p MODIFIED_BADLANDS_PLATEAU_ID I
	FIELD q MUSHROOM_FIELDS_ID I
	FIELD r MUSHROOM_FIELD_SHORE_ID I
	FIELD s RIVER_ID I
	FIELD t MOUNTAIN_EDGE_ID I
	FIELD u STONE_SHORE_ID I
	FIELD v SWAMP_ID I
	FIELD w TAIGA_ID I
	METHOD a sample (Lcgk;IIIII)I
		ARG 1 context
		ARG 2 up
		ARG 3 right
		ARG 4 down
		ARG 5 left
		ARG 6 self
	METHOD c isWooded (I)Z
		ARG 0 id
	METHOD d isBadlands (I)Z
		ARG 1 id
