private void BlitFadedCircle(Rect r, float val)
{
r.halfHeight = r.halfWidth;
Point min = new Point {
x = r.centreX - r.halfWidth, y = r.centreY - r.halfHeight
};
Point max = new Point {
x = r.centreX + r.halfWidth, y = r.centreY + r.halfHeight
};
float maxDistSqr = r.halfWidth * r.halfWidth;
for (int y = min.y; y < max.y; ++y)
{
for (int x = min.x; x < max.x; ++x)
{
if (!GridUtilities.IsGridPosSafe(x, y, _width, _height))
{
continue;
}
float distSqr = GridUtilities.DistanceSqr(r.centreX, r.centreY, x, y);
float scale = 1 - (distSqr / maxDistSqr);
if (scale < 0)
{
continue;
}
float addition = val * scale;
_map[GridUtilities.GridPosToIndex(x, y, _width)] += addition;
}
}
}
public int QueueSetPixel(int x, int y, float val)
{
if (!GridUtilities.IsGridPosSafe(x, y, _width, _height))
{
return(0);
}
_map[GridUtilities.GridPosToIndex(x, y, _width)] = val;
return(0);
}
private void BlitSolidRect(Rect r, float val)
{
Point min = new Point {
x = r.centreX - r.halfWidth, y = r.centreY - r.halfHeight
};
Point max = new Point {
x = r.centreX + r.halfWidth, y = r.centreY + r.halfHeight
};
for (int y = min.y; y < max.y; ++y)
{
for (int x = min.x; x < max.x; ++x)
{
if (!GridUtilities.IsGridPosSafe(x, y, _width, _height))
{
continue;
}
_map[GridUtilities.GridPosToIndex(x, y, _width)] += val;
}
}
}
public string DebugPrint()
{
StringBuilder sb = new StringBuilder(2048);
for (int y = 0; y < _height; ++y)
{
for (int x = 0; x < _width; ++x)
{
int i = GridUtilities.GridPosToIndex(x, y, _width);
float val = _map[i];
if (val != 0)
{
sb.Append(val.ToString("0.00"));
}
else
{
sb.Append(" ");
}
sb.Append(", ");
}
sb.Append("\n");
}
return(sb.ToString());
}