Bit mask (T files)

From X-Wiki

In T files bit masks are used to hold information about lasers (and missiles in X3) which can be fitted on certain ship.

Contents 1 Priciple 1.1 Example 2 Laser mask 3 Missile mask

Priciple

See Mask (computing) for general information how masks work.

Bit mask is represented as integer having 32 bits. Every bit represents one entry in T file (TMissiles or TLaser).

Example

Following laser mask allows a ship to mount 3 lasers:

• Alpha Impulse Ray Emmitter
• Alpha High Energy Plasma Thrower
• Alpha Flak Artillery Array

Mask: 145

145 decadic is 10010001 in binary.

In the bit mask the following bits are set to 1:

• 0 - 1st laser from TLaser (Alpha Impulse Ray Emmitter)
• 4 - 5th laser from TLaser (Alpha High Energy Plasma Thrower)
• 7 - 8th laser from TLaser (Alpha Flak Artillery Array)

Note: Bit indexes are always counted from zero. Example is based on TLaser file from 04.cat

Laser mask

Laser mask is used in TShips (X2/X3) to specify weapons (lasers) which can be equipped on certain ship.

Missile mask

In X3, missile mask is used in TShips to specify missiles which can be equipped on certain ship.