Scaling an entire mission

by Lee Latham · in Torque Game Engine · 04/20/2008 (3:14 am) · 8 replies · 04/20/2008 (7:07 am)

<?php

// This script scales and transposes the position of objects between the start and end tags.
// Make sure the start and end tags surround all and only the objects that need repositioning
// Written by Chris Gosling.

// ----------------------------------------------------
class Vector3D
{
	var $x;
	var $y;
	var $z;

	function Vector3D ($x, $y, $z)
	{
		$this->x = $x;
		$this->y = $y;
		$this->z = $z;
	}
}

// ----------------------------------------------------
// ###################################################
// ################### CONFIGURE THE CONVESION HERE ###
// ###################################################
$START_TAG = "---START SCALE TRANSLATION---";		// Needs to go in mis file where scale/translation begins
$END_TAG = "---END SCALE TRANSLATION---";				// Needs to go in mis file where scale/translation ends
$IN_FILE = "input_file.mis";										// name of input file
$OUT_FILE = "output_file.mis.mis";							// name of output file
$MAX_LEN = 4096;
$PRECISION = 4;

// Use this for transposition
$Vbo = new Vector3D(-202.57, -228.236, 140.003);		// Old origin point
$Vbn = new Vector3D(-212.82, -228.236, 140.003);		// New origin point

// Use this for scaling
$OLD_SCALE = 1;
$NEW_SCALE = 1;
// ########################## END CONFIGURE ###

$SCALE_FACTOR = $NEW_SCALE / $OLD_SCALE;

print "\n\n---------------  START ----------------\n\n";

// open in file
$fin = fopen($IN_FILE, "r");

if ($fin === false)
{
	print "Failed to open input file\n";
	exit(0);
}

// open out file
$fout = fopen($OUT_FILE, "w");

if ($fout === false)
{
	print "Failed to open output file\n";
	fclose($fin);
	exit(0);
}

// search for starting pos
$found = false;

while (!feof($fin))
{
	$line = fgets($fin, $MAX_LEN);

	// write to output file
	if (fwrite($fout, $line) === false)
	{
		print "Error writing to output file\n";
		fclose($fin);
		fclose($fout);
		exit(0);
	}

//	print "[".(++$count)."]";

	if (strpos($line, $START_TAG) !== false)
	{
		print "\n\n** START FOUND **\n\n";
		$found = true;
		break;
	}
}

if (!$found)
	print "Failed to find Start Position\n";

else
{
	// loop through
	while (!feof($fin))
	{
		$line = fgets($fin, $MAX_LEN);

		// ------------- ADJUST THE POSITION -------------
		if (strpos($line, "position"))
		{
			// get the current vector
			//				position = "189.16 -568.59 158.2";
			$bits = explode("\"", $line);
			$coords = explode(" ", $bits[1]);
			$Vo = new Vector3D($coords[0], $coords[1], $coords[2]);

			// scale coords by scaling the difference between this coord and the building old coord
			$Vdif = new Vector3D(($Vo->x - $Vbo->x) * $SCALE_FACTOR, ($Vo->y - $Vbo->y) * $SCALE_FACTOR, ($Vo->z - $Vbo->z) * $SCALE_FACTOR);

			// add the scaled difference onto the new building vector to get the scaled and transposed vector
			$Vn = new Vector3D($Vbn->x + $Vdif->x, $Vbn->y + $Vdif->y, $Vbn->z + $Vdif->z);

			// reconstruct the line			
			$line = $bits[0]."\"".round($Vn->x, $PRECISION)." ".round($Vn->y, $PRECISION)." ".round($Vn->z, $PRECISION)."\";\n";
		}

		// ------------- ADJUST THE SCALE -------------
		// scale = "1 1 1";
		if (!($OLD_SCALE == 1 && $NEW_SCALE == 1))
		{
			if (strpos($line, "scale"))
			{
				// get the current vector
				//				position = "189.16 -568.59 158.2";
				$bits = explode("\"", $line);
				$scales = explode(" ", $bits[1]);
				$Vo = new Vector3D($scales[0], $scales[1], $scales[2]);

				// adjust the scale
				$Vn = new Vector3D($Vo->x * $SCALE_FACTOR, $Vo->y * $SCALE_FACTOR, $Vo->z * $SCALE_FACTOR);			

				// reconstruct the line			
				$line = $bits[0]."\"".round($Vn->x, $PRECISION)." ".round($Vn->y, $PRECISION)." ".round($Vn->z, $PRECISION)."\";\n";
			}
		}

		// write to output file
		if (fwrite($fout, $line) === false)
		{
			print "Error writing to output file\n";
			fclose($fin);
			fclose($fout);
			exit(0);
		}

		// while not at end pos
		if (strpos($line, $END_TAG) !== false)
		{
			print "\n\n** END FOUND **\n\n";
			break;
		}
	}

	// write the rest of the file out
	while (!feof($fin))
	{
		$line = fgets($fin, $MAX_LEN);

		// write to output file
		if (fwrite($fout, $line) === false)
		{
			print "Error writing to output file\n";
			fclose($fin);
			fclose($fout);
			exit(0);
		}
	}
}

fclose($fin);
fclose($fout);

print "\n\n---------------  END ----------------\n\n";

?>

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