// Get highest clear block position for the player start
private Int3 GetPlayerStartPosition(Int3 _worldStartPos)
{
Int3 playerStartPos = _worldStartPos;
for (int i = playerStartPos.y + (Chunk.ChunkSize * RenderDistanceFirstPass); i >= playerStartPos.y - (Chunk.ChunkSize * RenderDistanceFirstPass); i--)
{
Int3 checkPos = new Int3(_worldStartPos.x, i, _worldStartPos.z);
Int3 checkPos1 = checkPos;
checkPos1.AddPos(0, 1, 0);
Int3 checkPos2 = checkPos;
checkPos2.AddPos(0, 2, 0);
Int3 checkPosChunk = checkPos;
checkPosChunk.WorldCoordsToChunkCoords();
Int3 checkPos1Chunk = checkPos1;
checkPos1Chunk.WorldCoordsToChunkCoords();
Int3 checkPos2Chunk = checkPos2;
checkPos2Chunk.WorldCoordsToChunkCoords();
if (Instance.ChunkExists(checkPosChunk) && Instance.ChunkExists(checkPos1Chunk) && Instance.ChunkExists(checkPos2Chunk))
{
if (!Instance.GetBlockFromWorldCoords(checkPos).IsTransparent&& Instance.GetBlockFromWorldCoords(checkPos1).IsTransparent&& Instance.GetBlockFromWorldCoords(checkPos2).IsTransparent)
{
playerStartPos.SetPos(playerStartPos.x, i + 1, playerStartPos.z);
return(playerStartPos);
}
}
}
System.Random r = new System.Random();
playerStartPos = this.GetPlayerStartPosition(new Int3(r.Next(-20, 20) + playerStartPos.x, _worldStartPos.y, r.Next(-20, 20) + playerStartPos.z));
return(playerStartPos);
}
// Checks visibility of given face
private static bool CheckVis(int _x, int _y, int _z, Int3 _position, Block[,,] _blocks, Side _side)
{
if (_side == Side.Bottom)
{
if (_y > 0)
{
Block block = _blocks[_x, _y - 1, _z];
return(block.IsTransparent || block.IsSemiTransparent);
}
else if (_y == 0)
{
Int3 pos = _position;
pos.AddPos(0, -1, 0);
Block block = World.Instance.GetBlockFromWorldCoords(pos);
return(block.IsTransparent || block.IsSemiTransparent);
}
return(false);
}
else if (_side == Side.Top)
{
if (_y < Chunk.ChunkSize - 1)
{
Block block = _blocks[_x, _y + 1, _z];
return(block.IsTransparent || block.IsSemiTransparent);
}
else if (_y == Chunk.ChunkSize - 1)
{
Int3 pos = _position;
pos.AddPos(0, 1, 0);
Block block = World.Instance.GetBlockFromWorldCoords(pos);
return(block.IsTransparent || block.IsSemiTransparent);
}
return(false);
}
else if (_side == Side.Front)
{
if (_x > 0)
{
Block block = _blocks[_x - 1, _y, _z];
return(block.IsTransparent || block.IsSemiTransparent);
}
else if (_x == 0)
{
Int3 pos = _position;
pos.AddPos(-1, 0, 0);
Block block = World.Instance.GetBlockFromWorldCoords(pos);
return(block.IsTransparent || block.IsSemiTransparent);
}
return(false);
}
else if (_side == Side.Back)
{
if (_x < Chunk.ChunkSize - 1)
{
Block block = _blocks[_x + 1, _y, _z];
return(block.IsTransparent || block.IsSemiTransparent);
}
else if (_x == Chunk.ChunkSize - 1)
{
Int3 pos = _position;
pos.AddPos(1, 0, 0);
Block block = World.Instance.GetBlockFromWorldCoords(pos);
return(block.IsTransparent || block.IsSemiTransparent);
}
return(false);
}
else if (_side == Side.Left)
{
if (_z > 0)
{
Block block = _blocks[_x, _y, _z - 1];
return(block.IsTransparent || block.IsSemiTransparent);
}
else if (_z == 0)
{
Int3 pos = _position;
pos.AddPos(0, 0, -1);
Block block = World.Instance.GetBlockFromWorldCoords(pos);
return(block.IsTransparent || block.IsSemiTransparent);
}
return(false);
}
else // Side.Right
{
if (_z < Chunk.ChunkSize - 1)
{
Block block = _blocks[_x, _y, _z + 1];
return(block.IsTransparent || block.IsSemiTransparent);
}
else if (_z == Chunk.ChunkSize - 1)
{
Int3 pos = _position;
pos.AddPos(0, 0, 1);
Block block = World.Instance.GetBlockFromWorldCoords(pos);
return(block.IsTransparent || block.IsSemiTransparent);
}
return(false);
}
}
