I'm pretty sure this has been done before, also it make the game near impossible.
interaction_region
[OBJECT:INTERACTION]
causes it to snow very deadly LIGNITE, watch out for the boiling clouds of magma if it catches any living creature it will set off the LIGNITE, (i recommend using dfhack weather -r if your frame rate starts to die)
after serveral days a large potion of your world will be converted to sinster with your fortress being the center point.(adventure mode doesn't trigger this change)
the undead will be everywhere (except for cities, but they do tend to wander in sometimes)
IS_REGION:EVIL_ONLY
IT_MATERIAL:MATERIAL:INORGANIC:SILICEOUS_OOZE:WEATHER_FALLING_MATERIAL
This evil region will have an undead animation effect as well as material clouds and material rain.
The materials would need to be supplied as an inorganic object entry elsewhere (or as a creature material etc.).
[INTERACTION:EXAMPLE DEAD ANIMATION IN EVIL REGIONS WITH MATERIAL CLOUDS AND RAIN]
[I_SOURCE:REGION]
[IS_REGION:ANY]
[IS_FREQUENCY:99]
[I_TARGET:A:CORPSE]
[IT_LOCATION:CONTEXT_REGION]
[IT_AFFECTED_CLASS:GENERAL_POISON]
[IT_REQUIRES:FIT_FOR_ANIMATION]
[IT_FORBIDDEN:NOT_LIVING]
[I_EFFECT:ANIMATE]
[IE_TARGET:A]
[IE_INTERMITTENT:WEEKLY]
[SYNDROME]
[CE_FLASH_TILE:TILE:165:3:0:0:FREQUENCY:2000:1000:START:0]
[CE_PHYS_ATT_CHANGE:STRENGTH:300:1000:TOUGHNESS:300:1000:START:0]
[CE_SPEED_CHANGE:SPEED_PERC:60:START:0]
[CE_ADD_TAG:NO_AGING:NOT_LIVING:OPPOSED_TO_LIFE:EXTRAVISION:NOEXERT:NOPAIN:NOBREATHE:NOSTUN:NONAUSEA:NO_DIZZINESS:NO_FEVERS:NOEMOTION:PARALYZEIMMUNE:NOFEAR:NO_EAT:NO_DRINK:NO_SLEEP:NO_PHYS_ATT_GAIN:NO_PHYS_ATT_RUST:NOTHOUGHT:NO_THOUGHT_CENTER_FOR_MOVEMENT:NO_CONNECTIONS_FOR_MOVEMENT:START:0]
[CE_REMOVE_TAG:HAS_BLOOD:TRANCES:LIKES_FIGHTING:MISCHIEVOUS:START:0]
[I_TARGET:B:MATERIAL]
[IT_MATERIAL:MATERIAL:INORGANIC:LIGNITE:WEATHER_CREEPING_GAS]
[I_EFFECT:MATERIAL_EMISSION]
[IE_TARGET:B]
[IE_INTERMITTENT:WEEKLY]
[I_TARGET:C:MATERIAL]
[IT_MATERIAL:MATERIAL:INORGANIC:LIGNITE:WEATHER_FALLING_MATERIAL]
[I_EFFECT:MATERIAL_EMISSION]
[IE_TARGET:C]
[IE_INTERMITTENT:WEEKLY]
thoughts on this one? how could i make it better/worst?