$closest_distance = $dist;
$closest_target = array($tRow, $tCol);
}
}
if ($closest_target === null) {
# no target found, mark ant as not moving so we don't run into it
$destinations[] = $ant;
continue;
}
$directions = $ants->direction($aRow, $aCol, $closest_target[0], $closest_target[1]);
shuffle($directions);
foreach ($directions as $direction) {
list($nRow, $nCol) = $ants->destination($aRow, $aCol, $direction);
$nKey = $nRow . '_' . $nCol;
if ($ants->unoccupied($nRow, $nCol) and !isset($destinations[$nKey])) {
$destinations[$nKey] = 1;
$ants->issueOrder($aRow, $aCol, $direction);
continue 2;
}
}
//ant can't move
$destinations[$aRow . '_' . $aCol] = 1;
}
}
}
/**
* Don't run bot when unit-testing
*/
if (!defined('PHPUnit_MAIN_METHOD')) {
Ants::run(new HunterBot());
}
$this->diffusion_map[$scent[0]][$scent[1]]['food'] += $boost;
}
}
foreach ($this->enemy_hills as $hill) {
$hill_boost = 10000 + rand(0, 2500);
list($hill_row, $hill_col) = $hill;
// Diffuse Food Scent in a radius of 10 units
$scentable = $this->getScentableTiles($hill_row, $hill_col, 20);
foreach ($scentable as $scent) {
$distance = $this->ants->distance($hill_row, $hill_col, $scent[0], $scent[1]);
if ($distance == 0) {
$boost = $hill_boost;
} else {
$boost = $hill_boost / $distance;
}
if ($this->diffusion_map[$scent[0]][$scent[1]]['hill'] > $boost) {
continue;
}
$this->diffusion_map[$scent[0]][$scent[1]]['hill'] = $boost;
}
}
$end = microtime(true);
$this->debug("Diffusion Time: " . ($end - $start) . "\n");
}
}
/**
* Don't run bot when unit-testing
*/
if (!defined('PHPUnit_MAIN_METHOD')) {
Ants::run(new MyBot());
}
<?php
require_once 'Ants.php';
class RandomBot
{
public function doTurn($ants)
{
$destinations = array();
foreach ($ants->myAnts as $ant) {
list($aRow, $aCol) = $ant;
// try all directions randomly until one is passable and not occupied
$directions = array_keys($ants->AIM);
shuffle($directions);
foreach ($directions as $direction) {
list($nRow, $nCol) = $ants->destination($aRow, $aCol, $direction);
$nKey = $nRow . '_' . $nCol;
if (!isset($destinations[$nKey]) && $ants->passable($nRow, $nCol)) {
$ants->issueOrder($aRow, $aCol, $direction);
$destinations[$nKey] = 1;
continue 2;
}
}
//ant can't move
$destinations[$aRow . '_' . $aCol] = 1;
}
}
}
Ants::run(new RandomBot());
// send ants following a wall, keeping it on their left
if (isset($this->antsLefty[$aKey])) {
$direction = $this->antsLefty[$aKey];
$directions = array($ants->LEFT[$direction], $direction, $ants->RIGHT[$direction], $ants->BEHIND[$direction]);
// try 4 directions in order, attempting to turn left at corners
foreach ($directions as $newDirection) {
list($nRow, $nCol) = $ants->destination($aRow, $aCol, $newDirection);
$nKey = $nRow . '_' . $nCol;
if ($ants->passable($nRow, $nCol)) {
if ($ants->unoccupied($nRow, $nCol) && !isset($destinations[$nKey])) {
$ants->issueOrder($aRow, $aCol, $newDirection);
$newLefty[$nKey] = $newDirection;
$destinations[$nKey] = 1;
break;
} else {
# have ant wait until it is clear
$newStraight[$aKey] = $ants->RIGHT[$direction];
$destinations[$aKey] = 1;
break;
}
}
}
}
}
# reset lists
$this->antsStraight = $newStraight;
$this->antsLefty = $newLefty;
}
}
Ants::run(new LeftyBot());
