/// <summary>
/// Applied before Emit runs.
/// </summary>
internal static bool Prefix(RadiationGridEmitter __instance)
{
int n = __instance.projectionCount;
if (n > 0)
{
var startPos = (Vector2)Grid.CellToPosCCC(__instance.originCell, Grid.
SceneLayer.Building);
float angle = __instance.angle, direction = __instance.direction - 0.5f *
angle, step = angle / n, intensity = __instance.intensity;
var scanCells = __instance.scanCells;
scanCells.Clear();
for (int i = 0; i < n; i++)
{
float netAngle = Mathf.Deg2Rad * (direction + Random.Range(-step, step) *
0.5f);
var unitVector = new Vector2(Mathf.Cos(netAngle), Mathf.Sin(netAngle));
float rads = intensity;
Vector2 a2 = unitVector;
float dist = 0f;
while (rads > 0.01f && dist < RadiationGridEmitter.MAX_EMIT_DISTANCE)
{
int cell = Grid.PosToCell(startPos + a2 * dist);
// 1 / 3
dist += 0.333333f;
if (!Grid.IsValidCell(cell))
{
break;
}
if (!scanCells.Contains(cell))
{
SimMessages.ModifyRadiationOnCell(cell, Mathf.RoundToInt(rads));
scanCells.Add(cell);
}
float mass = Grid.Mass[cell];
// Attenuate over distance, with a slight random factor
rads *= ((mass > 0.0f) ? Mathf.Max(0f, 1f - Mathf.Pow(mass, 1.25f) *
Grid.Element[cell].molarMass / 1000000.0f) : 1.0f) *
Random.Range(0.96f, 0.98f);
}
direction += step;
}
}
return(false);
}
