public void Initialize(int cx, int cz, int idx, int idz)
{
PosX = cx;
PosZ = cz;
// 1D array containing all the block id's for the world
NativeArray <int> blockIndices = new NativeArray <int>(ChunkWidth * ChunkHeight * ChunkWidth, Allocator.Temp);
// make the terrain, but return number of solid blocks in the world for this chunk
int solidBlocks = alg.setBlocks(blockIndices, PosX, PosZ);
// now make an array with just the real blocks and not air
// also need to keep positions of those blocks and if they're near air so
// that they should be drawn
NativeArray <int> solidBlockIndices = new NativeArray <int>(solidBlocks, Allocator.Temp);
Vector3[] positions = new Vector3[solidBlocks];
byte[] nearAir = new byte[solidBlocks];
// calculate what should be drawn from the solid block list
// and put all the solid blocks into the same array
solidBlocks = 0;
int width = ChunkWidth;
int height = ChunkHeight;
for (int i = 0; i < blockIndices.Length; i++)
{
if (blockIndices[i] != (int)BlockTypes.Air)
{
int x = i / (height * width);
int y = (i - x * height * width) / width;
int z = i - x * height * width - y * width;
solidBlockIndices[solidBlocks] = blockIndices[i];
positions[solidBlocks] = new Vector3(x, y, z);
nearAir[solidBlocks] = checkAir(blockIndices, positions[solidBlocks], idx, idz); solidBlocks++;
}
}
int countEntities = 0;
var entityManager = World.Active.GetOrCreateManager <EntityManager>();
int totalCount = solidBlockIndices.Length;
for (int index = 0; index < totalCount; index++)
{
if (nearAir[index] == 1)
{
countEntities++;
float x = positions[index].x;
float y = positions[index].y;
float z = positions[index].z;
// create entity and add position and texture to it
Entity blockEntity = entityManager.CreateEntity(GameManager.blockArchetype);
entityManager.SetComponentData(blockEntity, new Position {
Value = new float3(x + PosX, y, z + PosZ)
});
entityManager.AddSharedComponentData(blockEntity, renderers[solidBlockIndices[index]]);
}
}
//GameManager.Log("number of entities created is: " + countEntities);
blockIndices.Dispose();
// we would keep the blocks if we were doing something other than
// just chucking them into the display system
solidBlockIndices.Dispose();
}
