public static PipeElement.Orientation rotateClockwise(this PipeElement.Orientation cur)
{
switch (cur)
{
case PipeElement.Orientation.NORTH:
return(PipeElement.Orientation.EAST);
case PipeElement.Orientation.EAST:
return(PipeElement.Orientation.SOUTH);
case PipeElement.Orientation.SOUTH:
return(PipeElement.Orientation.WEST);
default:
return(PipeElement.Orientation.NORTH);
}
}
public static float toDegrees(this PipeElement.Orientation cur)
{
switch (cur)
{
case PipeElement.Orientation.NORTH:
return(0f);
case PipeElement.Orientation.WEST:
return(90f);
case PipeElement.Orientation.SOUTH:
return(180f);
case PipeElement.Orientation.EAST:
return(270f);
}
return(0f);
}
private bool isValidPath(int x, int y, PipeElement.Orientation from)
{
// before anything else, check if (x;y) is the valid output
if (x == outputX && y == outputY && from == outputOrientation)
{
// create the win path
winPath = new LinkedList <PipeElementScript>();
return(true);
}
// check if the given (x;y) is a valid pipe
PipeElement target = getPipeFromGrid(x, y);
if (target == null)
{
return(false);
}
// check if the (x;y) pipe may be connected with the origin direction
PipeElement.Orientation outDir;
if (!target.getDirectionConnected(from, out outDir))
{
return(false);
}
// it's the time for... recursion \o/
int newX, newY;
getNeighborCoordinates(x, y, outDir, out newX, out newY);
if (isValidPath(newX, newY, outDir.opposite()))
{
// okay, we are part of the win path, add ourself on top
winPath.AddFirst(objectGrid[x, y]);
return(true);
}
return(false);
}
private void getNeighborCoordinates(int x, int y, PipeElement.Orientation dir, out int newX, out int newY)
{
newX = x;
newY = y;
switch (dir)
{
case PipeElement.Orientation.NORTH:
newY--;
break;
case PipeElement.Orientation.SOUTH:
newY++;
break;
case PipeElement.Orientation.EAST:
newX++;
break;
case PipeElement.Orientation.WEST:
newX--;
break;
}
}
public static PipeElement.Orientation opposite(this PipeElement.Orientation cur)
{
return(cur.rotateClockwise().rotateClockwise());
}
/**
* Read a level from an XML document.
*/
private PipeElement[,] instanciateLevelFromXml(TextAsset document)
{
XmlDocument xml = new XmlDocument();
PipeElement[,] grid = new PipeElement[GRID_SIZE, GRID_SIZE];
// load the document and get the level(s)
xml.LoadXml(document.text);
XmlNodeList levelNodes = xml.GetElementsByTagName("level");
XmlAttribute levelEstimatedTime = levelNodes[0].Attributes["estimatedTime"];
if (levelEstimatedTime != null)
{
// use it as the base time for countdown timer
timebar.maxTime = int.Parse(levelEstimatedTime.Value);
}
// start and destination pipes
// TODO init
XmlNodeList pipeNodes = levelNodes[0].ChildNodes;
foreach (XmlNode curNode in pipeNodes)
{
if (curNode.Name == "pipe")
{
int x = 0;
int y = 0;
PipeElement.Orientation orientation = PipeElement.Orientation.NORTH;
PipeElement.Type type = PipeElement.Type.PIPE_I;
// add the pipe if possible
x = int.Parse(curNode.Attributes["x"].Value);
y = int.Parse(curNode.Attributes["y"].Value);
switch (curNode.Attributes["type"].Value)
{
case "L":
type = PipeElement.Type.PIPE_L;
break;
case "I":
type = PipeElement.Type.PIPE_I;
break;
case "in":
type = PipeElement.Type.PIPE_IN;
break;
case "out":
type = PipeElement.Type.PIPE_OUT;
break;
}
XmlAttribute dirAttribute = curNode.Attributes["dir"];
if (dirAttribute == null)
{
orientation = OrientationMethods.randomOrientation();
}
else
{
orientation = OrientationMethods.fromString(dirAttribute.Value);
}
if (x >= 0 && x < GRID_SIZE && y >= 0 && y < GRID_SIZE)
{
// add the new pipe to the grid, and set its neighbors
PipeElement toAdd = new PipeElement(type, orientation);
grid[x, y] = toAdd;
if (toAdd.type == PipeElement.Type.PIPE_IN)
{
inputX = x;
inputY = y;
inputOrientation = orientation;
}
else if (toAdd.type == PipeElement.Type.PIPE_OUT)
{
outputX = x;
outputY = y;
outputOrientation = orientation;
}
// set neighbors
// TODO neighbors
}
}
else
{
}
}
return(grid);
}
/**
* Read a level from an XML document.
*/
private PipeElement[,] instanciateLevelFromXml(TextAsset document)
{
XmlDocument xml = new XmlDocument ();
PipeElement[,] grid = new PipeElement[GRID_SIZE, GRID_SIZE];
// load the document and get the level(s)
xml.LoadXml(document.text);
XmlNodeList levelNodes = xml.GetElementsByTagName("level");
XmlAttribute levelEstimatedTime = levelNodes[0].Attributes["estimatedTime"];
if(levelEstimatedTime != null) {
// use it as the base time for countdown timer
timebar.maxTime = int.Parse(levelEstimatedTime.Value);
}
// start and destination pipes
// TODO init
XmlNodeList pipeNodes = levelNodes[0].ChildNodes;
foreach (XmlNode curNode in pipeNodes) {
if(curNode.Name == "pipe") {
int x=0;
int y=0;
PipeElement.Orientation orientation = PipeElement.Orientation.NORTH;
PipeElement.Type type = PipeElement.Type.PIPE_I;
// add the pipe if possible
x = int.Parse(curNode.Attributes["x"].Value);
y = int.Parse(curNode.Attributes["y"].Value);
switch(curNode.Attributes["type"].Value) {
case "L":
type = PipeElement.Type.PIPE_L;
break;
case "I":
type = PipeElement.Type.PIPE_I;
break;
case "in":
type = PipeElement.Type.PIPE_IN;
break;
case "out":
type = PipeElement.Type.PIPE_OUT;
break;
}
XmlAttribute dirAttribute = curNode.Attributes["dir"];
if(dirAttribute == null) {
orientation = OrientationMethods.randomOrientation();
}
else {
orientation = OrientationMethods.fromString(dirAttribute.Value);
}
if(x >= 0 && x < GRID_SIZE && y >= 0 && y < GRID_SIZE) {
// add the new pipe to the grid, and set its neighbors
PipeElement toAdd = new PipeElement(type, orientation);
grid[x, y] = toAdd;
if(toAdd.type == PipeElement.Type.PIPE_IN) {
inputX = x;
inputY = y;
inputOrientation = orientation;
}
else if(toAdd.type == PipeElement.Type.PIPE_OUT) {
outputX = x;
outputY = y;
outputOrientation = orientation;
}
// set neighbors
// TODO neighbors
}
}
else {
}
}
return grid;
}
