private int handle(Action action, ref DataTypes.BitmapUnsafe image, ref int x, ref int y)
{
switch (action)
{
case Action.MoveLeft:
x--;
if (x < 0)
{
x += image.Width;
y--;
if (y < 0)
{
y += image.Height;
}
}
goto case Action.MoveNone;
case Action.MoveRight:
x++;
if (x >= image.Width)
{
x -= image.Width;
y++;
if (y >= image.Height)
{
y -= image.Height;
}
}
goto case Action.MoveNone;
case Action.MoveUp:
y--;
if (y < 0)
{
y += image.Height;
}
goto case Action.MoveNone;
case Action.MoveDown:
y++;
if (y >= image.Height)
{
y -= image.Height;
}
goto case Action.MoveNone;
case Action.MoveNone:
int subwrite = ColorValues.value_from_intcolor[image.GetPixel(x, y)] + magnitude;
while (subwrite >= maxstates) subwrite -= maxstates;
image.SetPixel(x, y, ColorValues.intcolor_from_value[subwrite]);
break;
/*
case Action.Reprogram:
return ColorValues.value_from_intcolor[image.GetPixel(x, y)] + magnitude;
*/
case Action.readvalue:
int subread = ColorValues.value_from_intcolor[image.GetPixel(x, y)] + magnitude;
while (subread >= (int)Action.readvalue) subread -= (int)(Action.readvalue + 1);
handle((Action)subread, ref image, ref x, ref y);
break;
}
return -1;
}