public Landblock(CellLandblock landblock)
: base(landblock)
{
Init();
ID = landblock.Id;
BlockInfoExists = landblock.HasObjects;
if (BlockInfoExists)
{
Info = (LandblockInfo)DBObj.Get(new QualifiedDataID(2, ID - 1));
}
BlockCoord = LandDefs.blockid_to_lcoord(landblock.Id).Value;
_landblock = landblock;
get_land_limits();
}
public void GetCellRotation(uint landblockID, uint x, uint y, ref bool singleTextureCell, ref uint surfNum, ref LandDefs.Rotation rotation)
{
var lcoord = LandDefs.blockid_to_lcoord(landblockID);
var globalCellX = (int)(lcoord.Value.X + x);
var globalCellY = (int)(lcoord.Value.Y + y);
// no palette shift
// SW / SE / NE / NW
var i = (int)(LandDefs.VertexDim * x + y);
var terrain = Terrain[i];
var t1 = (terrain & 0x7F) >> 2;
var r1 = terrain & 3;
var j = (int)(LandDefs.VertexDim * (x + 1) + y);
var terrain2 = Terrain[j];
var t2 = (terrain2 & 0x7F) >> 2;
var r2 = terrain2 & 3;
var terrain3 = Terrain[j + 1];
var t3 = (terrain3 & 0x7F) >> 2;
var r3 = terrain3 & 3;
var terrain4 = Terrain[i + 1];
var t4 = (terrain4 & 0x7F) >> 2;
var r4 = terrain4 & 3;
/*Console.WriteLine($"LandblockStruct.GetCellRotation({landblockID:X8}, x:{x}, y:{y})");
* Console.WriteLine($"I1: {i}, I2: {j}, I3: {j+1}, I4: {i+1}");
* if (r1 != 0 || r2 != 0 || r3 != 0 || r4 != 0)
* Console.WriteLine($"R1: {r1}, R2: {r2}, R3: {r3}, R4: {r4}");
* Console.WriteLine($"T1: {(LandDefs.TerrainType)t1}, T2: {(LandDefs.TerrainType)t2}, T3: {(LandDefs.TerrainType)t3}, T4: {(LandDefs.TerrainType)t4}");*/
var palCodes = new List <uint>();
palCodes.Add(GetPalCode(r1, r2, r3, r4, t1, t2, t3, t4)); // 0
//palCodes.Add(GetPalCode(r2, r3, r4, r1, t2, t3, t4, t1)); // 270
//palCodes.Add(GetPalCode(r3, r4, r1, r2, t3, t4, t1, t2)); // 180
//palCodes.Add(GetPalCode(r4, r1, r2, r3, t4, t1, t2, t3)); // 90
var singleRoadCell = r1 == r2 && r1 == r3 && r1 == r4;
var singleTypeCell = t1 == t2 && t1 == t3 && t1 == t4;
singleTextureCell = r1 != 0 ? singleRoadCell : singleRoadCell && singleTypeCell;
var regionDesc = DatManager.PortalDat.RegionDesc;
var minimizePal = true;
LandSurf.Instance.SelectTerrain(globalCellX, globalCellY, ref surfNum, ref rotation, palCodes, 1, minimizePal);
}
public Landblock(CellLandblock landblock)
: base(landblock)
{
Init();
ID = landblock.Id;
//Console.WriteLine("Loading landblock " + ID.ToString("X8"));
BlockInfoExists = landblock.HasObjects;
if (BlockInfoExists)
{
Info = DBObj.GetLandblockInfo(ID - 1);
}
BlockCoord = LandDefs.blockid_to_lcoord(landblock.Id).Value;
_landblock = landblock;
get_land_limits();
}
public void ConstructPolygons(uint landblockID)
{
var lcoord = LandDefs.blockid_to_lcoord(landblockID).Value;
var polyNum = 1;
var seedA = (uint)((int)lcoord.X * LandDefs.VertexPerCell * 214614067);
var seedB = (uint)((int)lcoord.X * LandDefs.VertexPerCell * 1109124029);
var vertexCnt = 0;
for (var x = 0; x < SideCellCount; x++)
{
var lcoordX = lcoord.X + x;
var originY = 1;
var colVertexCnt = 0;
var originX = polyNum;
for (var y = 0; y < SideCellCount; y++)
{
var lcoordY = (int)lcoord.Y + y;
var magicB = seedB;
var magicA = seedA + 1813693831;
for (var i = 0; i < LandDefs.VertexPerCell; i++)
{
var idxI = vertexCnt + i;
var idxJ = colVertexCnt;
for (var j = 0; j < LandDefs.VertexPerCell; j++)
{
var splitDir = (uint)(((int)lcoord.Y * LandDefs.VertexPerCell + idxJ) * magicA - magicB - 1369149221);
var polyIdx = (LandDefs.VertexPerCell * i + j) * 2;
var cellIdx = x * SideCellCount + y;
var vertIdx = idxI * SideVertexCount + idxJ;
var firstVertex = (idxI * SidePolyCount + idxJ) * 2;
var nextVertIdx = (idxI + 1) * SideVertexCount + idxJ;
var lcell = (LandCell)LandCells[cellIdx];
if (splitDir * 2.3283064e-10 < 0.5f)
{
// 2 1---0
// | \ \ |
// | \ \ |
// 0---1 2
SWtoNEcut[cellIdx] = false;
lcell.Polygons[polyIdx] = AddPolygon(firstVertex, vertIdx, nextVertIdx, vertIdx + 1);
lcell.Polygons[polyIdx + 1] = AddPolygon(firstVertex + 1, nextVertIdx + 1, vertIdx + 1, nextVertIdx);
}
else
{
// 2 2---1
// / | | /
// / | | /
// 0---1 0
SWtoNEcut[cellIdx] = true;
lcell.Polygons[polyIdx] = AddPolygon(firstVertex, vertIdx, nextVertIdx, nextVertIdx + 1);
lcell.Polygons[polyIdx + 1] = AddPolygon(firstVertex + 1, vertIdx, nextVertIdx + 1, vertIdx + 1);
}
idxJ++;
}
magicA += 214614067;
magicB += 1109124029;
}
var cellID = (uint)LandDefs.lcoord_to_gid(lcoordX, lcoordY);
var landCell = LandCells[x * SideCellCount + y];
landCell.ID = cellID;
landCell.Pos.ObjCellID = cellID;
landCell.Pos.Frame.Origin.X = originX * LandDefs.HalfSquareLength;
landCell.Pos.Frame.Origin.Y = originY * LandDefs.HalfSquareLength;
originY += 2;
colVertexCnt += LandDefs.VertexPerCell;
}
vertexCnt += LandDefs.VertexPerCell;
seedB += 1109124029 * (uint)LandDefs.VertexPerCell;
seedA += 214614067 * (uint)LandDefs.VertexPerCell;
polyNum += 2;
}
}