Index of /fun/voidwars/pirate-port
Name Last modified Size Description
Parent Directory -
simulator.pl 2005-01-03 14:14 6.7K
log 2005-01-03 14:24 66K
data.planets 2005-01-03 07:22 37K
data.anomalies 2005-01-03 06:47 13K
PiratePort.pm 2005-01-03 14:24 13K
A ship is spawned at the home planet. It gets assigned a random DNA
based on the best /m/ ships so far (which are seeded randomly) with a
few random mutations. DNA strings are /n/ one-byte instructions long.
Every tick, the next batch of instructions for each living ship is
executed for that ship. When a ship reaches health zero or fuel zero
or colonises a planet it dies and is scored and removed. High scorers
displace the "highest /m/ ships" ships used for creating new ships.
Pirate ships auto-refuel above stars, and have enough fuel when
created to reach a nearby star with half a tank.
Multiple ships can be running at once.
An instruction is a byte long, as follows:
+--------------------------------- Negation flag
| +--------------------------- Condition
| |
| | +------------------- Argument
| | |
| | |
| | | +--------- Action
| _|_ _|_ ___|___
| / \ / \ / \
+-+-+---+---+---+---+---+---+---+
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
+---+---+---+---+---+---+---+---+
MSB LSB
...where:
* The Negation flag indicates whether the Condition should be taken
on face value or negated.
* The Condition is one of the following:
0 0 Position contains (planetoid)
0 1 Position contains (fleet)
1 0 Health greater than
1 1 Fuel greater than
* The Argument depends on the Condition.
For "Position contains (planetoid)":
0 0 Nothing
0 1 Star
1 0 Neutral planet
1 1 Enemy planet or space station
For "Position contains (fleet)":
0 0 Only us
0 1 Only friendly
1 0 Enemy ships
1 1 Enemy ships with overwhelming fire power
For "Health greater than" and "Fuel greater than":
0 0 0%
0 1 25%
1 0 50%
1 1 75%
* The Action is one of the following:
0 0 0 Stay on square
0 0 1 Colonise, Bombard, Build, or other ship-specific action
0 1 0 Jump back 20 instructions (rounding up to nearest multiple of 10)
0 1 1 Jump next 20 instructions (rounding up to nearest multiple of 10)
1 0 0 Up
1 0 1 Right
1 1 0 Left
1 1 1 Down
Instructions are executed until an action other than jumping around
the instruction code is executed, with a maximum of 10*/n/ executed
instructions per tick per ship.
Merging of DNA is done as follows: The first bit is taken from the
best DNA in the top /m/. There's an /x/% chance that the next bit will
come from the same DNA. If it doesn't, then a DNA strand is chosen at
random (uniform distribution) from the top /m/, and the next bit comes
from that DNA. The proces is repeated until all /n/ bytes have been
picked. A fraction /p/ of the bits are then randomly inverted.
This generally ensures that successful strands of DNA stay together
while still having intermixing.
Each ship has:
* Its VW ID.
* Its DNA.
* Its current instruction pointer.
* A running count of the total number of ticks executed with that ship.
* A running count of the number of squares travelled.
* A running count of the number of ships, planets, and stations destroyed.
* A running count of the number of things built.
* A running count of the number of planets colonised.
The score of a ship is based on the five running counts kept for each
ship as well as the distance from the start point to its death point.
Voidwars will have to provide:
* A way to determine what kills, etc, a ship has made.