public void TurnWind(WindTurnType wt, float[,] Elevation, float seaLevel)
{
if (wt == WindTurnType.None)
{
// do nothing
}
else if (wt == WindTurnType.RandomWalk)
{
int r = UnityEngine.Random.Range(-1, 1);
velocity = new Vec(velocity.x, r);
}
else if (wt == WindTurnType.TerrainBased)
{
if (Elevation[approxMapLoc.x, approxMapLoc.y] > seaLevel)
{
velocity.x -= deltaHeight;
velocity.y -= deltaHeight;
Vec lVec = velocity.GetRotatedVector(-90);
Vec rVec = velocity.GetRotatedVector(90);
MapLoc lMapLoc = new MapLoc((int)(Math.Max(1, actualMapLoc.x + lVec.x)), (int)Math.Max(1, actualMapLoc.y + lVec.y));
MapLoc rMapLoc = new MapLoc((int)(Math.Max(1, actualMapLoc.x + rVec.x)), (int)Math.Max(1, actualMapLoc.y + rVec.y));
try
{
float fDiff = Elevation[lMapLoc.x, lMapLoc.y] - Elevation[rMapLoc.x, rMapLoc.y];
velocity.x += lMapLoc.x * fDiff;
velocity.y += lMapLoc.y * fDiff;
}
catch
{
// ¯\_(ツ)_/¯
}
}
}
}
