/// <summary>
/// comefrom: pollutionTerrainLandValueScan
/// </summary>
public void SmoothTerrain()
{
if ((DonDither & 1).IsTrue())
{
int x, y = 0, dir = 1;
int z = 0;
for (x = 0; x < TerrainDensityMap.width; x++)
{
for (; y != TerrainDensityMap.height && y != -1; y += dir)
{
z +=
TempMap3.Get((x == 0) ? x : (x - 1), y) +
TempMap3.Get((x == (TerrainDensityMap.width - 1)) ? x : (x + 1), y) +
TempMap3.Get(x, (y == 0) ? (0) : (y - 1)) +
TempMap3.Get(x, (y == (TerrainDensityMap.height - 1)) ? y : (y + 1)) +
(TempMap3.Get(x, y) << 2);
Byte val = (Byte)(z / 8);
TerrainDensityMap.Set(x, y, val);
z &= 0x7;
}
dir = -dir;
y += dir;
}
}
else
{
short x, y;
for (x = 0; x < TerrainDensityMap.width; x++)
{
for (y = 0; y < TerrainDensityMap.height; y++)
{
int z = 0;
if (x > 0)
{
z += TempMap3.Get(x - 1, y);
}
if (x < (TerrainDensityMap.width - 1))
{
z += TempMap3.Get(x + 1, y);
}
if (y > 0)
{
z += TempMap3.Get(x, y - 1);
}
if (y < (TerrainDensityMap.height - 1))
{
z += TempMap3.Get(x, y + 1);
}
Byte val = (Byte)((z / 4 + TempMap3.Get(x, y)) / 2);
TerrainDensityMap.Set(x, y, val);
}
}
}
}
/// <summary>
/// comefrom: simulate SpecialInit
/// </summary>
public void PollutionTerrainLandValueScan()
{ /* Does pollution, terrain, land value */
long ptot, LVtot;
int x, y, z, dis;
int pollutionLevel, loc, worldX, worldY, Mx, My, pnum, LVnum, pmax;
// tempMap3 is a map of development density, smoothed into terrainMap.
TempMap3.Clear();
LVtot = 0;
LVnum = 0;
for (x = 0; x < LandValueMap.width; x++)
{
for (y = 0; y < LandValueMap.height; y++)
{
pollutionLevel = 0;
bool landValueFlag = false;
worldX = x * 2;
worldY = y * 2;
for (Mx = worldX; Mx <= worldX + 1; Mx++)
{
for (My = worldY; My <= worldY + 1; My++)
{
loc = (Map[Mx, My] & (ushort)MapTileBits.LowMask);
if (loc.IsTrue())
{
if (loc < (ushort)MapTileCharacters.RUBBLE)
{
// Increment terrain memory.
byte value = TempMap3.Get(x >> 1, y >> 1);
TempMap3.Set(x >> 1, y >> 1, (byte)(value + 15));
continue;
}
pollutionLevel += GetPollutionValue(loc);
if (loc >= (ushort)MapTileCharacters.ROADBASE)
{
landValueFlag = true;
}
}
}
}
/* XXX ??? This might have to do with the radiation tile returning -40.
* if (pollutionLevel < 0) {
* pollutionLevel = 250;
* }
*/
pollutionLevel = Math.Min(pollutionLevel, 255);
TempMap1.Set(x, y, (byte)pollutionLevel);
if (landValueFlag)
{ /* LandValue Equation */
dis = 34 - GetCityCenterDistance(worldX, worldY) / 2;
dis = dis << 2;
dis += TerrainDensityMap.Get(x >> 1, y >> 1);
dis -= PollutionDensityMap.Get(x, y);
if (CrimeRateMap.Get(x, y) > 190)
{
dis -= 20;
}
dis = Utilities.Restrict(dis, 1, 250);
LandValueMap.Set(x, y, (byte)dis);
LVtot += dis;
LVnum++;
}
else
{
LandValueMap.Set(x, y, 0);
}
}
}
if (LVnum > 0)
{
LandValueAverage = (short)(LVtot / LVnum);
}
else
{
LandValueAverage = 0;
}
DoSmooth1(); // tempMap1 -> tempMap2
DoSmooth2(); // tempMap2 -> tempMap1
pmax = 0;
pnum = 0;
ptot = 0;
for (x = 0; x < Constants.WorldWidth; x += PollutionDensityMap.BlockSize)
{
for (y = 0; y < Constants.WorldHeight; y += PollutionDensityMap.BlockSize)
{
z = TempMap1.WorldGet(x, y);
PollutionDensityMap.WorldSet(x, y, (byte)z);
if (z.IsTrue())
{ /* get pollute average */
pnum++;
ptot += z;
/* find max pol for monster */
if (z > pmax || (z == pmax && (GetRandom16() & 3) == 0))
{
pmax = z;
PollutionMaxX = (short)x;
PollutionMaxY = (short)y;
}
}
}
}
if (pnum.IsTrue())
{
PollutionAverage = (short)(ptot / pnum);
}
else
{
PollutionAverage = 0;
}
SmoothTerrain();
NewMapFlags[(int)MapType.Pollution] = 1;
NewMapFlags[(int)MapType.LandValue] = 1;
NewMapFlags[(int)MapType.Dynamic] = 1;
}