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OpenTS Manual

TunnelSpeed

Multiplier on how fast a subterranean unit sinks and rises, and divisor of its dig-in wait.

Specification
Applies to
global rules
File
rules.ini
Section
[General]
Value
floating point
When omitted
1

A higher value makes a tunneling unit dig in sooner and sink and rise faster. It does not change how fast the unit travels underground.

A unit whose Locomotor tunnels goes through these steps:

  1. It turns to face its destination.
  2. It tips nose down for (64 ÷ ROT) ÷ TunnelSpeed frames, where ROT is the unit’s rate of turn.
  3. It sinks, moving its travel speed times TunnelSpeed in leptons of height each frame.
  4. It crosses underground at a fixed 19 leptons a frame.
  5. It rises at the same rate it sank.
  6. It levels out on the surface for 64 ÷ ROT frames, which TunnelSpeed does not divide.

The sink and the rise never move less than 5 leptons a frame. Once a unit’s travel speed times TunnelSpeed falls below 6, lowering the value further no longer slows them. The dig-in wait has no such limit: the closer the value gets to 0, the longer the wait.

See also — ROT, MovementZone, AllowShroudedSubteranneanMoves