public VoxelInfo( Index setIndex, Index setAdjacentIndex, Chunk setChunk )
{
this.index = setIndex;
this.adjacentIndex = setAdjacentIndex;
this.chunk = setChunk;
}
public void Update()
{
// don't load chunks if engine isn't initialized yet
if (!Engine.Initialized || !ChunkManager.Initialized) {
return;
}
// don't load chunks if multiplayer is enabled but the connection isn't established yet
if (Engine.EnableMultiplayer) {
if (!Network.isClient && !Network.isServer) {
return;
}
}
// track which chunk we're currently in. If it's different from previous frame, spawn chunks at current position.
currentPos = Engine.PositionToChunkIndex (transform.position);
if (currentPos.IsEqual(LastPos) == false) {
ChunkManager.SpawnChunks(currentPos.x, currentPos.y, currentPos.z);
// (Multiplayer) update server position
if (Engine.EnableMultiplayer && Engine.MultiplayerTrackPosition && Engine.UniblocksNetwork != null) {
UniblocksClient.UpdatePlayerPosition (currentPos);
}
}
LastPos = currentPos;
}
// ==== maintenance ===========================================================================================
public void Awake()
{
// chunk initialization (load/generate data, set position, etc.)
// Set variables
ChunkIndex = new Index (transform.position);
SideLength = Engine.ChunkSideLength;
SquaredSideLength = SideLength * SideLength;
NeighborChunks = new Chunk [6]; // 0 = up, 1 = down, 2 = right, 3 = left, 4 = forward, 5 = back
MeshCreator = GetComponent<ChunkMeshCreator>();
Fresh = true;
// Register chunk
ChunkManager.RegisterChunk (this);
// Clear the voxel data
VoxelData = new ushort[SideLength*SideLength*SideLength];
// Set actual position
transform.position = ChunkIndex.ToVector3() * SideLength;
// multiply by scale
transform.position = new Vector3 (transform.position.x * transform.localScale.x, transform.position.y * transform.localScale.y, transform.position.z * transform.localScale.z);
// Grab voxel data
if (Engine.EnableMultiplayer && !Network.isServer) {
StartCoroutine (RequestVoxelData()); // if multiplayer, get data from server
}
else if (Engine.SaveVoxelData && TryLoadVoxelData() == true ) {
// data is loaded through TryLoadVoxelData()
}
else {
GenerateVoxelData();
}
}
public void Update()
{
// check if chunk is not null
GameObject chunkObject = Engine.PositionToChunk (transform.position);
if (chunkObject == null) return;
// get the voxelInfo from the transform's position
Chunk chunk = chunkObject.GetComponent<Chunk>();
Index voxelIndex = chunk.PositionToVoxelIndex (transform.position);
VoxelInfo voxelInfo = new VoxelInfo (voxelIndex, chunk);
// create a local copy of the collision voxel so we can call functions on it
GameObject voxelObject = Instantiate ( Engine.GetVoxelGameObject (voxelInfo.GetVoxel()) ) as GameObject;
VoxelEvents events = voxelObject.GetComponent<VoxelEvents>();
if (events != null ) {
// OnEnter
if ( chunk != LastChunk || voxelIndex.IsEqual(LastIndex) == false) {
events.OnBlockEnter (this.gameObject, voxelInfo);
}
// OnStay
else {
events.OnBlockStay(this.gameObject, voxelInfo);
}
}
LastChunk = chunk;
LastIndex = voxelIndex;
Destroy(voxelObject);
}
public override void OnBlockDestroy( VoxelInfo voxelInfo )
{
// if the block above is tall grass, destroy it
Index indexAbove = new Index (voxelInfo.index.x, voxelInfo.index.y+1, voxelInfo.index.z);
if ( voxelInfo.chunk.GetVoxel(indexAbove) == 8 ) {
voxelInfo.chunk.SetVoxel(indexAbove, 0, true);
}
}
public static Chunk GetChunkComponent(Index index)
{
string indexString = index.ToString();
if ( ChunkManager.Chunks.ContainsKey (indexString) ) {
return ChunkManager.Chunks [indexString];
}
else {
return null;
}
}
public override void OnBlockPlace( VoxelInfo voxelInfo )
{
// if the block below is grass, change it to dirt
Index indexBelow = new Index (voxelInfo.index.x, voxelInfo.index.y-1, voxelInfo.index.z);
if ( voxelInfo.GetVoxelType ().VTransparency == Transparency.solid
&& voxelInfo.chunk.GetVoxel(indexBelow) == 2) {
voxelInfo.chunk.SetVoxel(indexBelow, 1, true);
}
}
public static GameObject GetChunk(Index index)
{
Chunk chunk = ChunkManager.GetChunkComponent (index);
if (chunk == null) {
return null;
}
else {
return chunk.gameObject;
}
}
public bool IsEqual( Index to )
{
if (to == null) {
return false;
}
if (this.x == to.x &&
this.y == to.y &&
this.z == to.z) {
return true;
}
else return false;
}
public static bool Compare( Index a, Index b )
{
if (b == null) {
return false;
}
if (a.x == b.x &&
a.y == b.y &&
a.z == b.z) {
return true;
}
else return false;
}
public void ReceiveChangeBlock( NetworkPlayer sender, int x, int y, int z, int chunkx, int chunky, int chunkz, int data )
{
// receives a change sent by other client or server
GameObject chunkObject = ChunkManager.GetChunk (chunkx,chunky,chunkz);
if (chunkObject != null) {
// convert back to VoxelInfo
Index voxelIndex = new Index (x,y,z);
VoxelInfo info = new VoxelInfo (voxelIndex, chunkObject.GetComponent<Chunk>());
// apply change
Voxel.ChangeBlockMultiplayer (info, (ushort)data, sender);
}
}
public override void OnBlockPlace( VoxelInfo voxelInfo )
{
// switch to dirt if the block above isn't 0
Index adjacentIndex = voxelInfo.chunk.GetAdjacentIndex (voxelInfo.index, Direction.up);
if ( voxelInfo.chunk.GetVoxel(adjacentIndex) != 0 ) {
voxelInfo.chunk.SetVoxel(voxelInfo.index, 1, true);
}
// if the block below is grass, change it to dirt
Index indexBelow = new Index (voxelInfo.index.x, voxelInfo.index.y-1, voxelInfo.index.z);
if ( voxelInfo.GetVoxelType ().VTransparency == Transparency.solid
&& voxelInfo.chunk.GetVoxel(indexBelow) == 2) {
voxelInfo.chunk.SetVoxel(indexBelow, 1, true);
}
}
public void Update()
{
// track which chunk we're currently in. If it's different from previous frame, spawn chunks at current position.
currentPos = Engine.PositionToChunkIndex (transform.position);
if (currentPos.IsEqual(LastPos) == false) {
ChunkManager.SpawnChunks(currentPos.x, currentPos.y, currentPos.z);
// (Multiplayer) update server position
if (Engine.EnableMultiplayer && Engine.MultiplayerTrackPosition && Engine.UniblocksNetwork != null) {
UniblocksClient.UpdatePlayerPosition (currentPos);
}
}
LastPos = currentPos;
}
private static string GetRegionPath(Index regionIndex)
{
return Engine.WorldPath + ( regionIndex.ToString() + ",.region");
}
private static bool LoadRegionData(Index regionIndex)
{
// loads the region data into memory if file exists and it's not already loaded, returns true if data exists (and is loaded), else false
string indexString = regionIndex.ToString();
if (LoadedRegions.ContainsKey(indexString) == false) { // if not loaded
// load data if region file exists
string regionPath = GetRegionPath (regionIndex);
if (File.Exists (regionPath)) {
StreamReader reader = new StreamReader (regionPath);
string[] regionData = reader.ReadToEnd().Split((char)ushort.MaxValue);
reader.Close();
LoadedRegions[indexString] = regionData;
return true;
}
else {
return false; // return false if region file doesn't exist
}
}
return true; // return true if data is already loaded
}
private static Index GetParentRegion( Index index )
{
// returns the index of the region containing a specific chunk
Index newIndex = new Index(index.x, index.y, index.z);
if (index.x < 0) newIndex.x -= 9;
if (index.y < 0) newIndex.y -= 9;
if (index.z < 0) newIndex.z -= 9;
int x = newIndex.x / 10;
int y = newIndex.y / 10;
int z = newIndex.z / 10;
return new Index (x,y,z);
}
private static string[] GetRegionData(Index regionIndex)
{
// loads region data and from file returns it, or returns null if region file is not found
if (LoadRegionData(regionIndex) == true) {
return LoadedRegions[regionIndex.ToString()];
}
else {
return null;
}
}
private static void CreateRegionFile(Index index)
{
// creates an empty region file
Directory.CreateDirectory (Engine.WorldPath);
StreamWriter writer = new StreamWriter (GetRegionPath(index));
for (int i=0; i<999; i++) {
writer.Write ((char)ushort.MaxValue);
}
writer.Flush();
writer.Close();
}
private static int GetChunkRegionIndex( Index index )
{
// returns the 1d index of a chunk's data in the region file
Index newIndex = new Index (index.x, index.y, index.z);
if (newIndex.x < 0) newIndex.x = -newIndex.x - 1;
if (newIndex.y < 0) newIndex.y = -newIndex.y - 1;
if (newIndex.z < 0) newIndex.z = -newIndex.z - 1;
int flatIndex = (newIndex.z * 100) + (newIndex.y * 10) + newIndex.x;
while (flatIndex > 999) {
flatIndex -= 1000;
}
return flatIndex;
}
GameObject DoSpawnChunk(Index index)
{
GameObject chunkObject = Instantiate(ChunkObject, index.ToVector3(), transform.rotation) as GameObject;
Chunk chunk = chunkObject.GetComponent<Chunk>();
AddChunkToUpdateQueue (chunk);
return chunkObject;
}
public static Index PositionToChunkIndex( Vector3 position )
{
Index chunkIndex = new Index (Mathf.RoundToInt(position.x / Engine.ChunkScale.x) / Engine.ChunkSideLength,
Mathf.RoundToInt(position.y / Engine.ChunkScale.y) / Engine.ChunkSideLength,
Mathf.RoundToInt(position.z / Engine.ChunkScale.z) / Engine.ChunkSideLength);
return chunkIndex;
}
bool IsWithinRange( NetworkPlayer player, Index chunkIndex )
{
// checks if the player is within the range of the chunk
if ( Mathf.Abs ( PlayerPositions [player].x - chunkIndex.x ) > PlayerChunkSpawnDistances[player] ) {
return false;
}
if ( Mathf.Abs ( PlayerPositions [player].y - chunkIndex.y ) > PlayerChunkSpawnDistances[player] ) {
return false;
}
if ( Mathf.Abs ( PlayerPositions [player].z - chunkIndex.z ) > PlayerChunkSpawnDistances[player] ) {
return false;
}
return true;
}
private string GetChunkData(Index index)
{
// returns the chunk data (from memory or from file), or an empty string if data can't be found
// try to load from TempChunkData
string indexString = index.ToString();
if (TempChunkData.ContainsKey (indexString)) {
return TempChunkData[indexString];
}
// try to load from region, return empty if not found
int regionIndex = GetChunkRegionIndex (index);
string[] regionData = GetRegionData (GetParentRegion(index));
if (regionData == null) {
return "";
}
return regionData[regionIndex];
}
public static GameObject SpawnChunk( Index index )
{
// spawns a single chunk (only if it's not already spawned)
GameObject chunk = ChunkManager.GetChunk (index);
if (chunk == null) {
return Engine.ChunkManagerInstance.DoSpawnChunk(index);
}
else return chunk;
}
public void UpdatePlayerPosition( NetworkPlayer player, int chunkx, int chunky, int chunkz )
{
// sent by client
PlayerPositions [player] = new Index (chunkx, chunky, chunkz);
if (EnableDebugLog) Debug.Log ("UniblocksServer: Updated player position. Player "+player.ToString() + ", position: " + new Vector3(chunkx,chunky,chunkz).ToString());
}
public static GameObject SpawnChunkFromServer( Index index )
{
// spawns a chunk and disables mesh generation and enables timeout (used by the server in multiplayer)
GameObject chunk = ChunkManager.GetChunk (index);
if (chunk == null) {
chunk = Engine.ChunkManagerInstance.DoSpawnChunk(index);
Chunk chunkComponent =chunk.GetComponent<Chunk>();
chunkComponent.EnableTimeout = true;
chunkComponent.DisableMesh = true;
return chunk;
}
else return chunk; // don't disable mesh generation and don't enable timeout for chunks that are already spawned
}
private void TrySpawnChunks( int x, int y, int z )
{
if (Done == true) { // if we're not spawning chunks at the moment, just spawn them normally
StartSpawnChunks (x,y,z);
}
else { // if we are spawning chunks already, flag to spawn again once the previous round is finished using the last requested position as origin.
LastRequest = new Index(x,y,z);
SpawnQueue = 1;
StopSpawning = true;
ChunkUpdateQueue.Clear ();
}
}
private void TrySpawnChunks( Index index )
{
TrySpawnChunks (index.x, index.y, index.z);
}
private void WriteChunkData(Index index, string data)
{
// writes the chunk data to the TempChunkData dictionary
TempChunkData[index.ToString()] = data;
}
public static void SpawnChunks( Index index )
{
Engine.ChunkManagerInstance.TrySpawnChunks (index.x, index.y, index.z);
}