<?
include("header.php");

function printRow ($type)
{
	global $users, $uera, $canbuild;
?>
<tr><td><?=$uera[$type]?></td>
    <td class="aright"><?=commas($users[$type])?></td>
    <td class="acenter"><?=commas($canbuild)?></td>
    <td class="aright"><input type="text" name="build[<?=$type?>]" size="5" value="0"></td>
    <td class="acenter"><input type="checkbox" name="build[<?=$type?>]" value="<?=$canbuild?>"></td>
    <td class="acenter"><input type="checkbox" name="build[<?=$type?>]" value="<?=round($canbuild/2,0)?>"></td></tr>
<?
}


function getBuildAmounts ()
{
	global $users, $config, $urace, $buildcost, $buildrate, $canbuild;

	$buildcost = round($config[buildings] + (($users[land]-1000) * .10));

	//$buildcost = round($config[buildings] + ($users[land] * 0.5));

	$buildrate = $users[land] * 0.015 + 4;
	if ($buildrate > $config[maxbuild])
		$buildrate = $config[maxbuild];
	
	$buildrate = round($urace[bpt] * $buildrate);
	$canbuild = floor($users[cash] / $buildcost);		// limit by money
	if ($canbuild > $buildrate * $users[turns])		// by turns
		$canbuild = $buildrate * $users[turns];
	if ($canbuild > $users[freeland])			// and by land
		$canbuild = $users[freeland];		
}

function buildStructures ($type, $cost)
{
	global $users, $build, $totalbuild, $totalspent;
	$amount = $build[$type];
	fixInputNum($amount);
	if ($amount < 0)
		TheEnd("Cannot build a negative number of structures!");
	$users[$type] += $amount;
	$totalbuild += $amount;
	$users[freeland] -= $amount;
	$users[cash] -= $amount * $cost;
	$totalspent += $amount * $cost;
}

getBuildAmounts();
if ($do_build)
{	// nothing gets saved until later; if one has invalid input, it'll get caught and will prevent the build
	$totalbuild = $totalspent = 0;

		buildStructures(homes,$buildcost);
		buildStructures(shops,$buildcost);
		buildStructures(industry,$buildcost);
		buildStructures(barracks,$buildcost);
		buildStructures(labs,$buildcost);
		buildStructures(farms,$buildcost);
		buildStructures(towers,$buildcost);

	if ($totalbuild > $canbuild)	// this takes into account turns, money, AND free land all at once
		TheEnd("You can't build that many!");
//	elseif ($totalbuild > $users[freeland])
//		TheEnd("You don't have so much freeland!");

//	elseif ($users[freeland] == 0) 
//		TheEnd("You don't have free land.");
	elseif ($users[cash] < 0)		// in case we decide to add variable building costs
		TheEnd("You don't have enough money!");

	$turns = ceil($totalbuild / $buildrate);
	saveUserData($users,"homes shops industry barracks labs farms towers freeland cash");
	takeTurns($turns,build);
?>
You built <?=commas($totalbuild)?> total structures in <?=commas($turns)?> turns and spent $<?=commas($totalspent)?><hr>
<?
	getBuildAmounts();
} 
?>
Each structure consumes one acre of free land and costs $<?=commas($buildcost)?><br>
You can build <?=commas($buildrate)?> structures per turn.<br>
With our resources, we can build <span class="cgood"><?=commas($canbuild)?></span> structures.<br><br>
<form method="post" action="<?=$config[main]?>?action=build">
<table class="inputtable">
<tr><th class="aleft">Structure</th>
    <th class="aright">We Own</th>
    <th class="aright">We Can Build</th>
    <th class="aright">Build</th>
    <th class="acenter">Build Max</th>
    <th class="acenter">Build 1/2</th>
</tr>
<?
printRow(shops);
printRow(homes);
printRow(barracks);
printRow(industry);
printRow(labs);
printRow(farms);
printRow(towers);

?>
<tr><td>Unused Land</td>
    <td class="aright"><?=commas($users[freeland])?></td>
    <td colspan="4"></td></tr>
<tr><td colspan="6" class="acenter"><input type="submit" name="do_build" value="Begin Construction"></td></tr>
</table><br>
<table class="inputtable"><tr><th>Build Max and Build 1/2 are used for Building either Max of your land, or half of your land in one building.</th></tr>
</table>
</form>
<a href="<?=$config[main]?>?action=demolish">Demolish Structures</a>
<?
TheEnd("");
?>