public static void LoadFromJsonData(VoxelWorld world, VoxelJsonData data, bool clearTemp = true)
{
if (clearTemp)
{
ClearTemp();
}
Dictionary <int, string> palette = new Dictionary <int, string>();
for (int i = 0; i < data.palette.Length; i++)
{
palette.Add(data.palette[i].index, data.palette[i].id);
}
for (int i = 0; i < data.chunks.Length; i++)
{
int3 chunkPosition = new int3(data.chunks[i].position.x, data.chunks[i].position.y, data.chunks[i].position.z);
NativeList <int2> blocks = new NativeList <int2>(Allocator.Temp);
for (int j = 0; j < data.chunks[i].blocks.Length; j++)
{
blocks.Add(new int2(data.chunks[i].blocks[j].x, data.chunks[i].blocks[j].y));
}
using (BinaryWriter w = new BinaryWriter(File.Open(SaveFile(chunkPosition, true), FileMode.OpenOrCreate)))
{
WriteChunkInfo(w, chunkPosition, palette, blocks);
}
}
world.RefreshWorld();
}
private static void DumpLoadedChunksToTemp(VoxelWorld world)
{
ICollection <Chunk> loadedChunks = world.Chunks;
foreach (Chunk chunk in loadedChunks)
{
if (chunk.changed)
{
SaveChunk(chunk, true);
}
}
}
/// <summary>
/// Sets multiple blocks in the world.
/// </summary>
/// <param name="from">From world position.</param>
/// <param name="to">To world position.</param>
/// <param name="block">The block you want to set.</param>
/// <param name="world">The world you want to get the block from. If null, the current active world will be used.</param>
public static void SetBlocks(int3 from, int3 to, Block block, VoxelWorld world = null)
{
if (world == null)
{
world = VoxelWorld.Main;
if (world == null)
{
Debug.LogError("There's no world to set blocks in.");
return;
}
}
world.SetBlocks(from, to, block);
}
public static void SaveAllChunksToLocation(VoxelWorld world, string location)
{
List <Chunk> chunks = LoadAllChunks(world, true);
string originalPath = SaveLocation;
SaveLocation = location;
for (int i = 0; i < chunks.Count; i++)
{
SaveChunk(chunks[i], false);
chunks[i].Dispose();
}
SaveLocation = originalPath;
}
/// <summary>
/// Set a block in the world but it does NOT updates the terrain.
/// </summary>
/// <param name="position">The world position.</param>
/// <param name="block">The block you want to set.</param>
/// <param name="world">The world you want to get the block from. If null, the current active world will be used.</param>
public static void SetBlockRaw(int3 position, Block block, VoxelWorld world = null)
{
if (world == null)
{
world = VoxelWorld.Main;
if (world == null)
{
Debug.LogError("There's no world to set a block in.");
return;
}
}
world.SetBlockRaw(position, block);
}
/// <summary>
/// Gets a block from the world.
/// </summary>
/// <param name="position">The world position.</param>
/// <param name="world">The world you want to get the block from. If null, the current active world will be used.</param>
/// <returns>The block at the given position.</returns>
public static Block GetBlock(int3 position, VoxelWorld world = null)
{
if (world == null)
{
world = VoxelWorld.Main;
if (world == null)
{
Debug.LogError("There's no world to get a block from.");
return(BlockProvider.GetBlock(BlockProvider.AIR_TYPE));
}
}
return(world.GetBlock(position));
}
private static List <Chunk> LoadAllChunks(VoxelWorld world, bool ignoreEmptyChunks)
{
DumpLoadedChunksToTemp(world);
List <Chunk> chunks = new List <Chunk>();
string[] tempChunks = Directory.GetFiles(TempSaveLocation, "*.bin");
if (tempChunks != null && tempChunks.Length > 0)
{
for (int i = 0; i < tempChunks.Length; i++)
{
Chunk chunk = new Chunk(world, int3.zero, new ChunkBlocks(Chunk.CHUNK_SIZE));
DeserializeChunk(chunk, tempChunks[i]);
if (ignoreEmptyChunks)
{
NativeArray <int> blocks = chunk.GetAllBlocks(Allocator.Temp);
bool empty = true;
for (int b = 0; b < blocks.Length; b++)
{
if (blocks[b] != BlockProvider.AIR_TYPE_ID)
{
empty = false;
break;
}
}
blocks.Dispose();
if (empty)
{
// Need to dispose the chunk here to avoid memory leak.
chunk.Dispose();
continue;
}
}
chunks.Add(chunk);
}
}
return(chunks);
}
private void OnEnable()
{
if (Main != null)
{
if (!dontDestroyOnLoad && Main != this)
{
Debug.LogError("Multiple Voxel Worlds! There can only be one.", gameObject);
}
else
{
Destroy(gameObject);
}
return;
}
if (Main == null)
{
Main = this;
}
}
public static VoxelJsonData GetJsonData(VoxelWorld world, bool ignoreEmptyChunks = false)
{
VoxelJsonData data = new VoxelJsonData(BlockProvider.GetBlockPalette());
List <Chunk> chunks = LoadAllChunks(world, ignoreEmptyChunks);
VoxelJsonChunkData[] chunkData = new VoxelJsonChunkData[chunks.Count];
for (int i = 0; i < chunks.Count; i++)
{
chunkData[i] = new VoxelJsonChunkData(chunks[i]);
}
data.chunks = chunkData;
for (int i = 0; i < chunks.Count; i++)
{
chunks[i].Dispose(true);
}
return(data);
}
public Chunk(VoxelWorld world, int3 position)
{
this.world = world;
this.position = position;
}
public static void LoadAllJson(VoxelWorld world, string json, bool clearTemp = true)
{
LoadFromJsonData(world, JsonUtility.FromJson <VoxelJsonData>(json), clearTemp);
}
//public static void SaveAllJson(VoxelWorld world, string saveLocation = null)
//{
// VoxelJsonData data = GetJsonData(world);
// string json = JsonUtility.ToJson(data, false);
// Debug.Log(json);
//}
public static string ToJson(VoxelWorld world, bool ignoreEmptyChunks = false, bool prettyPrint = false)
{
VoxelJsonData data = GetJsonData(world, ignoreEmptyChunks);
return(ToJson(data, prettyPrint));
}
private static void ResetStatics()
{
Main = null;
}
/// <summary>
/// Set a block in the world but it does NOT updates the terrain.
/// </summary>
/// <param name="x">The X position.</param>
/// <param name="y">The Y position.</param>
/// <param name="z">The Z position.</param>
/// <param name="block">The block you want to set.</param>
/// <param name="world">The world you want to get the block from. If null, the current active world will be used.</param>
public static void SetBlockRaw(int x, int y, int z, Block block, VoxelWorld world = null)
{
SetBlockRaw(new int3(x, y, z), block, world);
}
/// <summary>
/// Set a block in the world and updates the terrain.
/// </summary>
/// <param name="x">The X position.</param>
/// <param name="y">The Y position.</param>
/// <param name="z">The Z position.</param>
/// <param name="block">The block you want to set.</param>
/// <param name="urgent">If true, the chunk will update as soon as possible.</param>
/// <param name="world">The world you want to get the block from. If null, the current active world will be used.</param>
public static void SetBlock(int x, int y, int z, Block block, bool urgent = true, VoxelWorld world = null)
{
SetBlock(new int3(x, y, z), block, urgent, world);
}
/// <summary>
/// Casts a ray into the world.
/// </summary>
/// <param name="ray">The ray to cast from.</param>
/// <param name="hit">The output hit.</param>
/// <param name="range">How far the ray reaches.</param>
/// <param name="stopAtZero">Stop if the ray goes below Y position 0.</param>
/// <param name="world">The world to cast the ray in.</param>
/// <returns>True if it hit something.</returns>
public static bool Raycast(Ray ray, out VoxelRaycastHit hit, float range, bool stopAtZero, VoxelWorld world = null)
{
if (world == null)
{
world = VoxelWorld.Main;
if (world == null)
{
throw new System.NullReferenceException("There's no world to raycast in.");
}
}
// Position as we work through the raycast, starts at origin and gets updated as it reaches each block boundary on the route
Vector3 pos = ray.origin;
//Normalized direction of the ray
Vector3 dir = ray.direction.normalized;
//Transform the ray to match the rotation and position of the world:
pos -= world.transform.position;
pos -= new Vector3(0.5f, 0.5f, 0.5f);
pos = Quaternion.Inverse(world.gameObject.transform.rotation) * pos;
dir = Quaternion.Inverse(world.transform.rotation) * dir;
// BlockPos to check if the block should be returned
int3 bPos = new int3(Mathf.RoundToInt(pos.x), Mathf.RoundToInt(pos.y), Mathf.RoundToInt(pos.z));
//Block pos that gets set to one block behind the hit block, useful for placing blocks at the hit location
int3 adjacentBPos = bPos;
// Positive copy of the direction
Vector3 dirP = new Vector3(Math.Abs(dir.x), Math.Abs(dir.y), Math.Abs(dir.z));
// The sign of the direction
int3 dirS = new int3(dir.x > 0 ? 1 : -1, dir.y > 0 ? 1 : -1, dir.z > 0 ? 1 : -1);
// Boundary will be set each step as the nearest block boundary to each direction
Vector3 boundary;
// dist will be set to the distance in each direction to hit a boundary
Vector3 dist;
//The block at bPos
Block hitBlock = world.GetBlock(bPos);
bool hitSomething = false;
while (hitBlock.id == 0 && math.distance(ray.origin, pos) < range)
{
// Get the nearest upcoming boundary for each direction
boundary.x = MakeBoundary(dirS.x, pos.x);
boundary.y = MakeBoundary(dirS.y, pos.y);
boundary.z = MakeBoundary(dirS.z, pos.z);
//Find the distance to each boundary and make the number positive
dist = boundary - pos;
dist = new Vector3(Math.Abs(dist.x), Math.Abs(dist.y), Math.Abs(dist.z));
// Divide the distance by the strength of the corresponding direction, the
// lowest number will be the boundary we will hit first. This is like distance
// over speed = time where dirP is the speed and the it's time to reach the boundary
dist.x /= dirP.x;
dist.y /= dirP.y;
dist.z /= dirP.z;
// Use the shortest distance as the distance to travel this step times each direction
// to give us the position where the ray intersects the closest boundary
if (dist.x < dist.y && dist.x < dist.z)
{
pos += dist.x * dir;
}
else if (dist.y < dist.z)
{
pos += dist.y * dir;
}
else
{
pos += dist.z * dir;
}
// Set the block pos but use ResolveBlockPos because one of the components of pos will be exactly on a block boundary
// and will need to use the corresponding direction sign to decide which side of the boundary to fall on
adjacentBPos = bPos;
bPos = new int3(ResolveBlockPos(pos.x, dirS.x), ResolveBlockPos(pos.y, dirS.y), ResolveBlockPos(pos.z, dirS.z));
hitBlock = world.GetBlock(bPos);
if (hitBlock.id != 0)
{
hitSomething = true;
}
if (bPos.y <= 0 && stopAtZero)
{
break;
}
// The while loop then evaluates if hitblock is a viable block to stop on and
// if not does it all again starting from the new position
}
if (!hitSomething && stopAtZero)
{
bPos.y = 0;
adjacentBPos.y = 0;
}
hit = new VoxelRaycastHit()
{
block = hitBlock,
blockPosition = bPos,
adjacentPosition = adjacentBPos,
direction = dir,
scenePosition = pos
};
return(hitSomething);
}
/// <summary>
/// Gets a block from the world.
/// </summary>
/// <param name="x">The X position.</param>
/// <param name="y">The Y position.</param>
/// <param name="z">The Z position.</param>
/// <param name="world">The world you want to get the block from. If null, the current active world will be used.</param>
/// <returns>The block at the given position.</returns>
public static Block GetBlock(int x, int y, int z, VoxelWorld world = null)
{
return(GetBlock(new int3(x, y, z), world));
}
public Chunk(VoxelWorld world, int3 position, ChunkBlocks blocks) : this(world, position)
{
this.blocks = blocks;
}
/// <summary>
/// Sets multiple blocks in the world.
/// </summary>
/// <param name="fromX">From X position.</param>
/// <param name="fromY">From Y position.</param>
/// <param name="fromZ">From Z position.</param>
/// <param name="toX">To X position.</param>
/// <param name="toY">To Y position.</param>
/// <param name="toZ">To Z position.</param>
/// <param name="block">The block you want to set.</param>
/// <param name="world">The world you want to get the block from. If null, the current active world will be used.</param>
public static void SetBlocks(int fromX, int fromY, int fromZ, int toX, int toY, int toZ, Block block, VoxelWorld world = null)
{
SetBlocks(new int3(fromX, fromY, fromZ), new int3(toX, toY, toZ), block, world);
}
