static private void moveCharacterWithoutMovementCheck(int characterGroup, int characterIndex, Vector3D new_position) {
if (new_position == null)
throw new NoPositionPassedException ();
// check that the position exists on the map
// if the position does not exist, then throw
// a PositionNotOnMapException
// do this by checking that the x value is within the range of the jagged tileArray
// if this throws an IndexOutOfRangeException,
// then the positition is also not on the map
try {
if ((new_position.x < 0) || (new_position.x >= MapSystem.currentMap.tileArray[new_position.y].Length))
throw new PositionNotOnMapException ("The position " + new_position.ToString() + " is not on the map.", null);
}
catch (IndexOutOfRangeException e) {
throw new PositionNotOnMapException ("The position " + new_position.ToString() + " is not on the map.", e);
}
// assign the character's position
try {
_characterPositions [characterGroup] [characterIndex] = new_position;
}
catch (IndexOutOfRangeException e) {
throw new NoSuchCharacterException ("No character exists in group " + characterGroup + " at index " + characterIndex, e);
}
}
static public void walkCharacterPlusX(int characterGroup, int characterIndex)
{
Vector3D current_position = getCharacterPosition(characterGroup, characterIndex);
// throw an exception if the you can't exit the character's current tile to the positive x direction
if (MapSystem.currentMap.tileArray [current_position.y] [current_position.x].exit_to_positive_x == false)
{
throw new MoveToNewPositionIsBlockedException("Character (" + characterGroup + "," + characterIndex + ") cannot exit the position " + current_position.ToString() + " in the +x direction.");
}
Vector3D new_position = current_position + new Vector3D(1, 0, 0);
// if the new position is not walkable, throw an error
// if an index out of range exception is thrown, there is no tile in the positive x direction
try {
if (MapSystem.currentMap.tileArray [new_position.y] [new_position.x].walkable == false)
{
throw new MoveToNewPositionIsBlockedException("The position " + new_position.ToString() + " cannot be walked on.");
}
}
catch (IndexOutOfRangeException e) {
throw new PositionNotOnMapException("The position " + new_position.ToString() + " is not on the map.", e);
}
// set the new height to the new tile's height
new_position.z = MapSystem.currentMap.tileArray [new_position.y] [new_position.x].height;
// move the character to the new position
moveCharacterWithoutMovementCheck(characterGroup, characterIndex, new_position);
}
static private void moveCharacterWithoutMovementCheck(int characterGroup, int characterIndex, Vector3D new_position)
{
if (new_position == null)
{
throw new NoPositionPassedException();
}
// check that the position exists on the map
// if the position does not exist, then throw
// a PositionNotOnMapException
// do this by checking that the x value is within the range of the jagged tileArray
// if this throws an IndexOutOfRangeException,
// then the positition is also not on the map
try {
if ((new_position.x < 0) || (new_position.x >= MapSystem.currentMap.tileArray[new_position.y].Length))
{
throw new PositionNotOnMapException("The position " + new_position.ToString() + " is not on the map.", null);
}
}
catch (IndexOutOfRangeException e) {
throw new PositionNotOnMapException("The position " + new_position.ToString() + " is not on the map.", e);
}
// assign the character's position
try {
_characterPositions [characterGroup] [characterIndex] = new_position;
}
catch (IndexOutOfRangeException e) {
throw new NoSuchCharacterException("No character exists in group " + characterGroup + " at index " + characterIndex, e);
}
}
static public void teleportCharacterToWalkableLocation(int characterGroup, int characterIndex, Vector3D new_position)
{
// check that the new position can be walked on
// if an index out of range exception is thrown, the tile is not on the map
try {
if (MapSystem.currentMap.tileArray [new_position.y] [new_position.x].walkable == false)
{
throw new MoveToNewPositionIsBlockedException("The position " + new_position.ToString() + " cannot be walked on.");
}
}
catch (IndexOutOfRangeException e) {
throw new PositionNotOnMapException("The position " + new_position.ToString() + " is not on the map.", e);
}
// move the character to the new position
moveCharacterWithoutMovementCheck(characterGroup, characterIndex, new_position);
}
static public void teleportCharacterToWalkableLocation(int characterGroup, int characterIndex, Vector3D new_position) {
// check that the new position can be walked on
// if an index out of range exception is thrown, the tile is not on the map
try {
if (MapSystem.currentMap.tileArray [new_position.y] [new_position.x].walkable == false)
throw new MoveToNewPositionIsBlockedException ("The position " + new_position.ToString() + " cannot be walked on.");
}
catch (IndexOutOfRangeException e) {
throw new PositionNotOnMapException ("The position " + new_position.ToString() + " is not on the map.", e);
}
// move the character to the new position
moveCharacterWithoutMovementCheck (characterGroup, characterIndex, new_position);
}
override public void onMove (Vector3D tile_postion) {
Console.Out.WriteLine ("A character moved to " + tile_postion.ToString ());
}