function fight($simulation)
{
$Clocation = array();
foreach ($simulation as $location => $key) {
if ($key['type'] == 'C') {
$Clocation[] = $location;
}
}
foreach ($Clocation as $carnivore) {
if (hasRightNeighbour($carnivore) && rightNeighbour($simulation, $carnivore) == "C" && $simulation[$carnivore]['life'] != $simulation[$carnivore + 1]['life'] && !$_SESSION["action"][$carnivore]) {
if ($simulation[$carnivore]['life'] > $simulation[$carnivore + 1]['life']) {
$simulation[$carnivore]['life'] += $simulation[$carnivore + 1]['life'];
$simulation[$carnivore + 1] = null;
$_SESSION["action"][$carnivore] = true;
} else {
$simulation[$carnivore + 1]['life'] += $simulation[$carnivore]['life'];
$simulation[$carnivore] = null;
$_SESSION["action"][$carnivore + 1] = true;
}
}
}
return $simulation;
}
function move($simulation)
{
$Clocation = array();
$Elocation = array();
foreach ($simulation as $location => $organism) {
if ($organism['type'] == 'C') {
$Clocation[] = $location;
}
if ($organism == null) {
$Elocation[] = $location;
}
}
foreach ($Clocation as $carnivore) {
if (hasRightNeighbour($carnivore) && rightNeighbour($simulation, $carnivore) == null && !$_SESSION["action"][$carnivore]) {
$moveCandidates = array($carnivore - $_SESSION["dimension"], $carnivore + $_SESSION["dimension"], $carnivore - 1, $carnivore + 1);
do {
$moveloc = array_rand($moveCandidates, 1);
$moveloc = $moveCandidates[$moveloc];
} while (!in_array($moveloc, $Elocation));
$simulation[$moveloc] = $simulation[$carnivore];
$Clocation[$carnivore] = $moveloc;
$_SESSION["action"][$moveloc] = true;
$simulation[$carnivore] = null;
// $Elocation[$moveloc] = $carnivore;
$Elocation[] = $carnivore;
$Elocation = array_diff($Elocation, array($moveloc));
$Elocation = array_values($Elocation);
}
}
$Elocation = array();
$Hlocation = array();
foreach ($simulation as $location => $organism) {
if ($organism == null) {
$Elocation[] = $location;
}
if ($organism['type'] == 'H') {
$Hlocation[] = $location;
}
}
foreach ($Hlocation as $herbivore) {
if (hasRightNeighbour($herbivore) && rightNeighbour($simulation, $herbivore) == null && !$_SESSION["action"][$herbivore]) {
$moveCandidates = array($herbivore - $_SESSION["dimension"], $herbivore + $_SESSION["dimension"], $herbivore - 1, $herbivore + 1);
do {
$moveloc = array_rand($moveCandidates, 1);
$moveloc = $moveCandidates[$moveloc];
} while (!in_array($moveloc, $Elocation));
$simulation[$moveloc] = $simulation[$herbivore];
$Hlocation[$herbivore] = $moveloc;
$_SESSION["action"][$moveloc] = true;
$simulation[$herbivore] = null;
$Elocation[] = $herbivore;
$Elocation = array_diff($Elocation, array($moveloc));
$Elocation = array_values($Elocation);
}
}
unset($_SESSION["action"]);
return $simulation;
}
function move($simulation)
{
$Clocation = OrganismLocations($simulation, 'C');
$Elocation = OrganismLocations($simulation, '');
foreach ($Clocation as $carnivore) {
if (hasRightNeighbour($carnivore) && rightNeighbour($simulation, $carnivore) == null && !$_SESSION["action"][$carnivore]) {
$moveCandidates = array($carnivore - $_SESSION["dimension"], $carnivore + $_SESSION["dimension"], $carnivore + 1);
if ($carnivore % $_SESSION["dimension"] != 0) {
$moveCandidates[] = $carnivore - 1;
}
do {
$moveloc = array_rand($moveCandidates, 1);
$moveloc = $moveCandidates[$moveloc];
} while (!in_array($moveloc, $Elocation));
$simulation[$moveloc] = $simulation[$carnivore];
$Clocation[$carnivore] = $moveloc;
$_SESSION["action"][$moveloc] = true;
$simulation[$carnivore] = null;
$Elocation[] = $carnivore;
$Elocation = array_diff($Elocation, array($moveloc));
}
}
$Elocation = OrganismLocations($simulation, '');
$Hlocation = OrganismLocations($simulation, 'H');
foreach ($Hlocation as $herbivore) {
if (hasRightNeighbour($herbivore) && rightNeighbour($simulation, $herbivore) == null && !$_SESSION["action"][$herbivore]) {
$moveCandidates = array($herbivore - $_SESSION["dimension"], $herbivore + $_SESSION["dimension"], $herbivore + 1);
if ($herbivore % $_SESSION["dimension"] != 0) {
$moveCandidates[] = $herbivore - 1;
}
do {
$moveloc = array_rand($moveCandidates, 1);
$moveloc = $moveCandidates[$moveloc];
} while (!in_array($moveloc, $Elocation));
$simulation[$moveloc] = $simulation[$herbivore];
$Hlocation[$herbivore] = $moveloc;
$_SESSION["action"][$moveloc] = true;
$simulation[$herbivore] = null;
$Elocation[] = $herbivore;
$Elocation = array_diff($Elocation, array($moveloc));
}
}
unset($_SESSION["action"]);
return $simulation;
}