// Set texture and height data for city tiles
public static void SetLocationTiles(ContentReader contentReader, ref MapPixelData mapPixel)
{
const int tileDim = 16;
const int chunkDim = 8;
// Get location
DFLocation location = contentReader.MapFileReader.GetLocation(mapPixel.mapRegionIndex, mapPixel.mapLocationIndex);
// Centre location tiles inside terrain area
int startX = ((chunkDim * tileDim) - location.Exterior.ExteriorData.Width * tileDim) / 2;
int startY = ((chunkDim * tileDim) - location.Exterior.ExteriorData.Height * tileDim) / 2;
// Full 8x8 locations have "terrain blend space" around walls to smooth down random terrain towards flat area.
// This is indicated by texture index > 55 (ground texture range is 0-55), larger values indicate blend space.
// We need to know rect of actual city area so we can use blend space outside walls.
int xmin = terrainSampleDim, ymin = terrainSampleDim;
int xmax = 0, ymax = 0;
// Iterate blocks of this location
for (int blockY = 0; blockY < location.Exterior.ExteriorData.Height; blockY++)
{
for (int blockX = 0; blockX < location.Exterior.ExteriorData.Width; blockX++)
{
// Get block data
DFBlock block;
string blockName = contentReader.MapFileReader.GetRmbBlockName(ref location, blockX, blockY);
if (!contentReader.GetBlock(blockName, out block))
{
continue;
}
// Copy ground tile info
for (int tileY = 0; tileY < tileDim; tileY++)
{
for (int tileX = 0; tileX < tileDim; tileX++)
{
DFBlock.RmbGroundTiles tile = block.RmbBlock.FldHeader.GroundData.GroundTiles[tileX, (tileDim - 1) - tileY];
int xpos = startX + blockX * tileDim + tileX;
int ypos = startY + blockY * tileDim + tileY;
int offset = (ypos * terrainSampleDim) + xpos;
int record = tile.TextureRecord;
if (tile.TextureRecord < 56)
{
// Track interior bounds of location tiled area
if (xpos < xmin)
{
xmin = xpos;
}
if (xpos > xmax)
{
xmax = xpos;
}
if (ypos < ymin)
{
ymin = ypos;
}
if (ypos > ymax)
{
ymax = ypos;
}
// Store texture data from block
mapPixel.samples[offset].record = record;
mapPixel.samples[offset].flip = tile.IsFlipped;
mapPixel.samples[offset].rotate = tile.IsRotated;
mapPixel.samples[offset].location = true;
}
}
}
}
}
// Update location rect with extra clearance
const int extraClearance = 2;
Rect locationRect = new Rect();
locationRect.xMin = xmin - extraClearance;
locationRect.xMax = xmax + extraClearance;
locationRect.yMin = ymin - extraClearance;
locationRect.yMax = ymax + extraClearance;
mapPixel.locationRect = locationRect;
}