/**
* Überprüft, ob das nächste Feld begehbar ist.
*
* @param level das aktuelle Level
* @return {@code true} falls das Feld begehbar ist,</br> {@code false} falls nicht.
*/
protected final boolean nextFieldWalkable(Level level) {
final int stepsize = EntityHelpings.TILESIZE * GameField.getCurFactor();
Level field = GameField.getCurLevel();
int maxX = field.getMaxX() * field.getTileSize();
int maxY = field.getMaxY() * field.getTileSize();
switch (head.route) {
case 0:
return level.getWalkableAbsolutPos(head.xPos, (head.yPos - stepsize + maxY) % maxY);
case 1:
return level.getWalkableAbsolutPos((head.xPos + stepsize) % maxX, head.yPos);
case 2:
return level.getWalkableAbsolutPos(head.xPos, (head.yPos + stepsize) % maxY);
case 3:
return level.getWalkableAbsolutPos((head.xPos - stepsize + maxX) % maxX, head.yPos);
default:
return false;
}
}
/**
* Bewegt den Kopf der Entität in die aktuelle Richtung.
*
* @see #moveBody()
*/
protected final void moveHead() {
Level field = GameField.getCurLevel();
int maxX = field.getMaxX() * field.getTileSize();
int maxY = field.getMaxY() * field.getTileSize();
switch (head.route) {
case 0:
head.yPos = (head.yPos - stepsize + maxY) % maxY;
break;
case 1:
head.xPos = (head.xPos + stepsize) % maxX;
break;
case 2:
head.yPos = (head.yPos + stepsize) % maxY;
break;
case 3:
head.xPos = (head.xPos - stepsize + maxX) % maxX;
break;
default:
break;
}
}