/**
* Loads a level.
*
* @param levelNumber Number of the wanted level.
* @param resources Resource object for images
* @return Level object
* @throws ProtectedContentException
* @throws IOException
*/
public static Level load(int levelNumber, Resources resources)
throws ProtectedContentException, IOException {
final Image image = Levels.getImage(levelNumber);
final int w = image.getWidth();
final int h = image.getHeight();
final int[] raw = new int[w * h];
image.getRGB(raw, 0, w, 0, 0, w, h);
byte[][] level = new byte[w][h];
Vector enemySpawnPointsVector = new Vector();
Point playerSpawnPoint = null;
Point base = null;
Vector treePointsVector = new Vector();
byte value;
int x, y;
Hashtable unknownColors = new Hashtable();
// add the level elements set in level image
for (int i = 0; i < raw.length; i++) {
value = 0;
x = i % w;
y = i / w;
switch (raw[i] & 0x00F0F0F0) {
case BRICK_COLOR:
value = BRICK_WALL;
break;
case STEEL_COLOR:
value = STEEL_WALL;
break;
case WATER_COLOR:
value = WATER;
break;
case TREE_COLOR:
treePointsVector.addElement(new Point(x, y));
break;
case ENEMY_SPAWN_POINT_COLOR:
enemySpawnPointsVector.addElement(new Point(x, y));
break;
case PLAYER_SPAWN_POINT_COLOR:
playerSpawnPoint = new Point(x, y);
break;
case BASE_COLOR:
base = new Point(x, y);
break;
default:
if ((raw[i] & 0x00FFFFFF) != 0x00FFFFFF) {
Integer key = new Integer(raw[i] & 0x00FFFFFF);
unknownColors.put(key, key);
}
}
level[x][y] = value;
}
Point[] enemySpawnPoints = new Point[enemySpawnPointsVector.size()];
enemySpawnPointsVector.copyInto(enemySpawnPoints);
Point[] trees = new Point[treePointsVector.size()];
treePointsVector.copyInto(trees);
StringBuffer debug = new StringBuffer();
Enumeration e = unknownColors.keys();
while (e.hasMoreElements()) {
debug.append(Integer.toHexString(((Integer) e.nextElement()).intValue()));
debug.append(", ");
}
if (enemySpawnPoints.length == 0) {
throw new IllegalArgumentException("no enemy spawn points " + debug.toString());
}
if (playerSpawnPoint == null) {
throw new IllegalArgumentException("no player spawn point " + debug.toString());
}
if (base == null) {
throw new IllegalArgumentException("no base " + debug.toString());
}
return new Level(level, enemySpawnPoints, playerSpawnPoint, base, trees, resources);
}
