| /datum/bt_node/ai_behavior/dig_away_from_danger | Burrows underground (or stays underground) when danger is present or a storm is approaching.
Returns RUNNING while underground+storm (blocks everything).
Returns FAILURE when no action needed so the selector passes through. |
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| /datum/bt_node/ai_behavior/burrow_through_ground | While jaunting (underground) with a target, moves the grub's phased form further away.
Returns FAILURE when not jaunting so the selector passes through. |
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| /datum/bt_node/ai_behavior/find_ore | Finds an ore pile. Sets BB_ORE_TARGET. Skips forbidden types and fetch targets. |
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| /datum/bt_node/ai_behavior/find_boulder | Finds a boulder the goldgrub can break. Sets BB_BOULDER_TARGET. |
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| /datum/bt_node/ai_behavior/find_ore_vent | Finds an ore vent to harvest. Sets BB_VENT_TARGET. |
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| /datum/bt_node/ai_behavior/find_grub_egg | Finds a grub egg to protect/pull. Sets BB_LOW_PRIORITY_HUNTING_TARGET. |
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| /datum/bt_node/ai_behavior/grub_eat | Eats/interacts with a target at the given blackboard key. Must be adjacent. |
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