/// <summary>
///Adds a chunk at the given coordinates and expands the map
/// </summary>
/// <param name="node">
///The chunk you wish to add to the map
/// </param>
/// <param name="x">
///The x target coordinate
/// </param>
/// <param name="y">
///The y target coordinate
/// </param>
public void AddNodeAt(ChunkSet node, int x, int y)
{
node.SetCoordinates(x,y);
if(x < 0){
//Debug.Log("ABS X: " + x);
//expand and shuffle by Mathf.Abs(x)
ExpandWidth(currentWidth + Mathf.Abs(x));
ShuffleMap(Mathf.Abs(x),0);
node.SetCoordinates(0,node.GetY());
}
else if(x >= currentWidth){
//we just need to expand out by x - (currentWidth - 1), no need to shuffle
if(currentWidth == 0){
ExpandWidth(x+1);
}
else{
ExpandWidth(x+1);
}
}
if(y < 0){
//Debug.Log("ABS Y: " + x);
//expand and shuffle by Mathf.Abs(y)
ExpandHeight(currentHeight + Mathf.Abs(y));
ShuffleMap(0,Mathf.Abs(y));
node.SetCoordinates(node.GetX(),0);
}
else if(y >= currentHeight){
//we just need to expand up by y - (currentHeight - 1), no need to shuffle
ExpandHeight(y+1);
}
SetNodeAt(node,node.GetX(),node.GetY());
}
void ExpandHeight(int newHeight){
ChunkSet[] newMap = new ChunkSet[newHeight * currentWidth];
if(map != null){
int upperBound = currentHeight;
if(currentHeight > newHeight){
upperBound = newHeight;
}
//When expanding height, we don't need to do any tricky mathematics to cater for one-dimensional array storage
for(int x = 0; x < currentWidth; x++){
for(int y = 0; y < upperBound; y++){
int index = y * currentWidth + x;
ChunkSet n = map[index];
newMap[index] = n;
}
}
}
map = newMap;
currentHeight = newHeight;
}
void ExpandWidth(int newWidth){
ChunkSet[] newMap = new ChunkSet[currentHeight * newWidth];
if(map != null){
int upperBound = currentWidth;
if(currentWidth > newWidth){
upperBound = newWidth;
}
for(int x = 0; x < upperBound; x++){
for(int y = 0; y < currentHeight; y++){
int index = y * currentWidth + x;
ChunkSet n = map[index];
index = y * newWidth + x;
newMap[index] = n;
}
}
}
map = newMap;
currentWidth = newWidth;
}
void SetNodeAt(ChunkSet node, int x, int y){
int index = y * currentWidth + x;
map[index] = node;
node.SetCoordinates(x,y);
}
public void Editor_AddChunkAt(int x, int y, int depth, MapChunk chunkPrefab, bool placeAbsolute){
ChunkSet cs = GetNodeAt(x,y);
if(depth > mapUpperDepth){
mapUpperDepth = depth;
}
if(depth < mapLowerDepth){
mapLowerDepth = depth;
}
MapChunk mc = null;
if(cs == null){
cs = new ChunkSet();
cs.InitializeChunkSet(this,x,y);
AddNodeAt(cs,x,y);
mc = GameObject.Instantiate(chunkPrefab) as MapChunk;
mc.name = "MapChunk_"+x+"_"+y;
cs.AddChunkAt(mc,depth);
mc.Editor_Activate(chunkWidth,chunkHeight,cs.x,cs.y,depth,this,placeAbsolute);
return;
}
else{
if(cs.x != x){
cs.x = x;
}
if(cs.y != y){
cs.y = y;
}
}
if(cs.GetChunkAt(depth,false) != null){
return;
}
mc = GameObject.Instantiate(chunkPrefab) as MapChunk;
mc.name = "MapChunk_"+x+"_"+y;
//at this point we want to do a different activation, as the chunkset already exists
//and this is therefore at a different depth
cs.AddChunkAt(mc,depth);
int upper = depth+1;
int lower = depth-1;
MapChunk u = cs.GetChunkAt(upper,false);
MapChunk l = cs.GetChunkAt(lower,false);
if(u != null){
mc.Editor_ActivateBound(chunkWidth,chunkHeight,cs.x,cs.y,depth,this,u);
}
else if(l != null){
mc.Editor_ActivateBound(chunkWidth,chunkHeight,cs.x,cs.y,depth,this,l);
}
else{
mc.Editor_Activate(chunkWidth,chunkHeight,cs.x,cs.y,depth,this,placeAbsolute);
}
}