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Builder bot Builder bots are the only mobile unit. They construct buildings, heal friendly entities on a chosen tile, and can make a weak attack against the building under them.

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Properties

Builder bot range — blue is vision, red is action radius

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Movement

Builder bots can move to an adjacent tile (including diagonals) if their move cooldown is 0. Moving increases the cooldown by 1.
Builder bots can only walk on:
  • Conveyors, splitters, armoured conveyors, and bridges (any direction, either team)
  • Roads (either team)
  • The allied core
These are called walkable tiles. The direction of the building does not matter, and neither does the presence of resources on the tile.

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Actions

When action cooldown is 0, a builder bot can perform one of:

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Build

Build any building or turret on a tile within action radius that doesn’t already have a building.
If a tile already contains a builder bot, only walkable buildings (conveyors and roads) can be built on that tile.

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Heal

Spend 1 Ti to heal 4 HP to all friendly entities on a tile within action radius. If a friendly builder bot and a friendly building share the chosen tile, both are healed. The action fails if nothing on that tile would gain HP.

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Attack

Spend 2 Ti to deal 2 damage to the building on the tile the builder bot is standing on. This reuses the standard can_fire() / fire() combat API. Armoured conveyors are immune to builder bot attacks.

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Destroy

Destroy any allied building within action radius. This can be done any number of times per round and does not cost action cooldown.

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Self-destruct

A builder bot can self-destruct at any time. It does not deal damage.

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Markers

Builder bots (like all units) can place one marker per round within action radius, separate from the action cooldown.