PLANETTYPE_TERRAN=1,
PLANETTYPE_STEPPE=2,
PLANETTYPE_JUNGLE=3,
PLANETTYPE_SWAMP=4,
PLANETTYPE_DESERT=5,
PLANETTYPE_LAVA=6,
PLANETTYPE_TUNDRA=7,
PLANETTYPE_ICE=8,
PLANETTYPE_BARREN=9,
PLANETTYPE_TOXIC=10,
PLANETTYPE_MEGACITY=11,