Fuel usage: With the standard configuration, fuel usage comes close to HOST's, but is not identical. PHost also offers an additional fuel consumption model (UseAccurateFuelModel) which accounts for the fact that ships get lighter by burning fuel, therefore they consume less fuel. See Fuel Usage formulas.
Zero-Fuel Movement: In PHost, ships without fuel can move at most one light year. In HOST, they can move as far as they get.
Movement through Mines: When the tower runs on a mine and explodes, the towed ship can escape and use the remaining time for moving towards its original waypoint if TowedShipsBreakFree is enabled.
The value of HullTechNotSlowedByMines determines what happens to ships which get damaged in a minefield. The mine hit odds can differ for each warp speed (MineOddsWarpBonusX100 etc.)
Gravity Wells: It is not entirely clear from HOST documentation when and how gravity wells affect ships. For completeness, the approach taken by PHost is described below. It is believed that this closely (if not exactly) matches HOST behavior.
If the AllowGravityWells config option is on, then a ship will be pulled into a gravity well after movement is complete except for the following circumstances:
- the ship has not moved this turn
- the ship is already orbiting a planet
- the ship has chunneled or passed through a chunnel
- the ship has hyperjumped and AllowHyperjumpGravWells is off
- the ship has a warp speed of 1 (and did not hyperjump)
See also Gravity Well formulas.
Intercept: HOST allows interception of ships closer than 200 ly only, to prevent blind intercepts. PHost allows you to intercept everything you see (and only that).
PHost implements intercept in a different way than HOST. With circular intercept, the meeting point and movement path of the ships will differ. It shall be noted that HOST's intercept resolution has changed significantly between versions as well.
