private static MeshColumn[,] CreateVoxelColumnsFromJson(string json)
{
LegoMap map = JsonUtility.FromJson <LegoMap>(json);
MeshColumn[,] meshColumns = new MeshColumn[map.mapSize.x, map.mapSize.y];
for (int x = 0; x < meshColumns.GetLength(0); x++)
{
for (int y = 0; y < meshColumns.GetLength(1); y++)
{
meshColumns[x, y] = new MeshColumn(
x * meshColumns.GetLength(1) + y,
new Vector2(x, y),
map.columns[x * meshColumns.GetLength(1) + y].height,
map.columns[x * meshColumns.GetLength(1) + y].type
);
}
}
return(meshColumns);
}
private static int[] GetTriangles(MeshColumn[,] meshColumns)
{
int topCount = meshColumns.Length * 2;
int sideCount = (4 * meshColumns.Length - 2 * (meshColumns.GetLength(0) + meshColumns.GetLength(1)));
int sideId = topCount * 3;
int sideOffset = meshColumns.Length * 4;
int[] triangles = new int[3 * (topCount + sideCount)];
for (int x = 0; x < meshColumns.GetLength(0); x++)
{
for (int y = 0; y < meshColumns.GetLength(1); y++)
{
MeshColumn meshColumn = meshColumns[x, y];
int offset = meshColumn.id * 4;
// Top mesh
triangles[meshColumn.id * 6] = offset;
triangles[meshColumn.id * 6 + 1] = offset + 1;
triangles[meshColumn.id * 6 + 2] = offset + 2;
triangles[meshColumn.id * 6 + 3] = offset;
triangles[meshColumn.id * 6 + 4] = offset + 2;
triangles[meshColumn.id * 6 + 5] = offset + 3;
// Side mesh
if (x != 0)
{
if (meshColumns[x, y].GetHeight() > meshColumns[x - 1, y].GetHeight())
{
triangles[sideId] = sideOffset + meshColumns[x - 1, y].id * 8 + 5;
triangles[sideId + 1] = sideOffset + meshColumns[x, y].id * 8 + 2;
triangles[sideId + 2] = sideOffset + meshColumns[x, y].id * 8 + 1;
triangles[sideId + 3] = sideOffset + meshColumns[x - 1, y].id * 8 + 5;
triangles[sideId + 4] = sideOffset + meshColumns[x, y].id * 8 + 1;
triangles[sideId + 5] = sideOffset + meshColumns[x - 1, y].id * 8 + 6;
}
else
{
triangles[sideId] = sideOffset + meshColumns[x, y].id * 8 + 1;
triangles[sideId + 1] = sideOffset + meshColumns[x - 1, y].id * 8 + 6;
triangles[sideId + 2] = sideOffset + meshColumns[x - 1, y].id * 8 + 5;
triangles[sideId + 3] = sideOffset + meshColumns[x, y].id * 8 + 1;
triangles[sideId + 4] = sideOffset + meshColumns[x - 1, y].id * 8 + 5;
triangles[sideId + 5] = sideOffset + meshColumns[x, y].id * 8 + 2;
}
sideId += 6;
}
if (y != 0)
{
if (meshColumns[x, y].GetHeight() > meshColumns[x, y - 1].GetHeight())
{
triangles[sideId] = sideOffset + meshColumns[x, y - 1].id * 8 + 3;
triangles[sideId + 1] = sideOffset + meshColumns[x, y].id * 8;
triangles[sideId + 2] = sideOffset + meshColumns[x, y].id * 8 + 7;
triangles[sideId + 3] = sideOffset + meshColumns[x, y - 1].id * 8 + 3;
triangles[sideId + 4] = sideOffset + meshColumns[x, y].id * 8 + 7;
triangles[sideId + 5] = sideOffset + meshColumns[x, y - 1].id * 8 + 4;
}
else
{
triangles[sideId] = sideOffset + meshColumns[x, y].id * 8 + 7;
triangles[sideId + 1] = sideOffset + meshColumns[x, y - 1].id * 8 + 4;
triangles[sideId + 2] = sideOffset + meshColumns[x, y - 1].id * 8 + 3;
triangles[sideId + 3] = sideOffset + meshColumns[x, y].id * 8 + 7;
triangles[sideId + 4] = sideOffset + meshColumns[x, y - 1].id * 8 + 3;
triangles[sideId + 5] = sideOffset + meshColumns[x, y].id * 8;
}
sideId += 6;
}
}
}
return(triangles);
}
private static Vector2[] GetUV(MeshColumn[,] meshColumns)
{
Vector2[] uv = new Vector2[meshColumns.Length * 12];
Dictionary <Column.Type, Vector2[]> uvDictionary = GetUVDictionary();
int sideOffset = meshColumns.Length * 4;
Vector2[] localUV;
for (int x = 0; x < meshColumns.GetLength(0); x++)
{
for (int y = 0; y < meshColumns.GetLength(1); y++)
{
MeshColumn meshColumn = meshColumns[x, y];
if (uvDictionary.ContainsKey(meshColumn.type))
{
localUV = uvDictionary[meshColumn.type];
}
else
{
localUV = uvDictionary[Column.Type.Default];
}
// Top mesh
uv[meshColumn.id * 4] = localUV[0];
uv[meshColumn.id * 4 + 1] = localUV[1];
uv[meshColumn.id * 4 + 2] = localUV[2];
uv[meshColumn.id * 4 + 3] = localUV[3];
// Side mesh
if (x != 0)
{
if (meshColumns[x, y].GetHeight() > meshColumns[x - 1, y].GetHeight())
{
if (uvDictionary.ContainsKey(meshColumn.type))
{
localUV = uvDictionary[meshColumn.type];
}
else
{
localUV = uvDictionary[Column.Type.Default];
}
uv[sideOffset + meshColumns[x - 1, y].id * 8 + 5] = localUV[0];
uv[sideOffset + meshColumns[x, y].id * 8 + 2] = localUV[1];
uv[sideOffset + meshColumns[x, y].id * 8 + 1] = localUV[2];
uv[sideOffset + meshColumns[x - 1, y].id * 8 + 6] = localUV[3];
}
else
{
if (uvDictionary.ContainsKey(meshColumns[x - 1, y].type))
{
localUV = uvDictionary[meshColumns[x - 1, y].type];
}
else
{
localUV = uvDictionary[Column.Type.Default];
}
uv[sideOffset + meshColumns[x, y].id * 8 + 1] = localUV[0];
uv[sideOffset + meshColumns[x - 1, y].id * 8 + 6] = localUV[1];
uv[sideOffset + meshColumns[x - 1, y].id * 8 + 5] = localUV[2];
uv[sideOffset + meshColumns[x, y].id * 8 + 2] = localUV[3];
}
}
if (y != 0)
{
if (meshColumns[x, y].GetHeight() > meshColumns[x, y - 1].GetHeight())
{
if (uvDictionary.ContainsKey(meshColumn.type))
{
localUV = uvDictionary[meshColumn.type];
}
else
{
localUV = uvDictionary[Column.Type.Default];
}
uv[sideOffset + meshColumns[x, y - 1].id * 8 + 3] = localUV[0];
uv[sideOffset + meshColumns[x, y].id * 8] = localUV[1];
uv[sideOffset + meshColumns[x, y].id * 8 + 7] = localUV[2];
uv[sideOffset + meshColumns[x, y - 1].id * 8 + 4] = localUV[3];
}
else
{
if (uvDictionary.ContainsKey(meshColumns[x, y - 1].type))
{
localUV = uvDictionary[meshColumns[x, y - 1].type];
}
else
{
localUV = uvDictionary[Column.Type.Default];
}
uv[sideOffset + meshColumns[x, y].id * 8 + 7] = localUV[0];
uv[sideOffset + meshColumns[x, y - 1].id * 8 + 4] = localUV[1];
uv[sideOffset + meshColumns[x, y - 1].id * 8 + 3] = localUV[2];
uv[sideOffset + meshColumns[x, y].id * 8] = localUV[3];
}
}
}
}
return(uv);
}
