/**
* Returns neighbor units in given range (radius).
* For example, given a Unit X and 1 as range, will return unit
* to the left of X AND to the right of X, if they exist (even if dead).
* If you provide a side argument, only that side is returned.
* So for Unit X, range 1, side left, only the ONE unit to the left of X is returned.
*
* @param Unit $oUnit
* @param int $iRange
* @param string $sSide
* @return array
*/
public function getAdjacentUnits(Unit $oUnit, $iRange = 1, $sSide = 'both')
{
$aAdjacent = array();
while ($iRange > 0) {
if ($sSide == 'both' || $sSide == 'left') {
if (isset($this->aUnits[$oUnit->getIndex() - $iRange])) {
$aAdjacent[] = $this->aUnits[$oUnit->getIndex() - $iRange];
}
}
if ($sSide == 'both' || $sSide == 'right') {
if (isset($this->aUnits[$oUnit->getIndex() + $iRange])) {
$aAdjacent[] = $this->aUnits[$oUnit->getIndex() + $iRange];
}
}
$iRange--;
}
return array_reverse($aAdjacent);
}
/**
* Shoots at a given unit. Hit or miss depends on accuracy and other
* factors. Can shoot at self and commit suicide with a 100% success rate.
* @param \autofight\Interfaces\Unit $oUnit
* @return mixed
*/
public function shoot(iUnit $oUnit)
{
$aResults = array();
$oResult = new BattleResult();
$oResult->attacker = $this;
$oResult->defender = $oUnit;
// Calculate hit or miss.
$iHitScore = rand(1, 100);
$bHit = $iHitScore >= $this->iAccuracy;
$oResult->type = $bHit ? BattleLogger::TYPE_HIT : BattleLogger::TYPE_MISS;
$oResult->message = $this->determineMessage($iHitScore);
$fPercentageOfAccuracy = $iHitScore / $this->iAccuracy * 100;
if (!$bHit) {
$iAmount = 0;
// MISS
if ($fPercentageOfAccuracy > 50 && $fPercentageOfAccuracy < 60) {
/*
If the hit score was between 50% and 60% of accuracy
there's a chance the adjacent trooper was hit.
*/
$aAdjacent = $this->getArmy()->getAdjacentUnits($this, 1);
if (!empty($aAdjacent)) {
$oUnitToShootAt = $this->getRandomElement($aAdjacent);
if ($oUnitToShootAt) {
$aResults[] = $this . ' aims at ' . $oUnit . ' but bullet strays towards ' . $oUnitToShootAt . '!';
$aPostMerge = $this->shoot($oUnitToShootAt);
}
}
} else {
if ($iHitScore == 1) {
// CRITICAL MISS
switch (rand(0, 1)) {
case 0:
// Reduce accuracy by 10
$this->iAccuracy = $this->iAccuracy < 11 ? 1 : $this->iAccuracy - 10;
$sAddedMessage = $this . ' has suffered a permanent reduction of accuracy!';
break;
case 1:
// Reduce health by 10
$this->iHealth = $this->iHealth < 11 ? 1 : $this->iHealth - 10;
$sAddedMessage = $this . ' has suffered a permanent reduction of health!';
break;
default:
break;
}
}
}
} else {
// HIT
if ($iHitScore == 100) {
// CRITICAL HIT
$iAmount = $this->iDamage * 5;
$aResults[] = $this . ' scored a critical hit!!';
} else {
$iAmount = $this->iDamage * $iHitScore / 100;
}
}
$oResult->amount = $iAmount;
$oUnit->decreaseHealth($iAmount);
if (!$oUnit->isAlive()) {
$oResult->message = 'kills';
$oResult->type = BattleLogger::TYPE_DEATH;
}
$aResults[] = $oResult;
if (isset($sAddedMessage)) {
$aResults[] = $sAddedMessage;
}
$aPostMerge = isset($aPostMerge) ? $aPostMerge : array();
$aResults = array_merge($aResults, $aPostMerge);
return $aResults;
}