public static List <GridRelativeState <T> > AsGridRelativeStateList <T>(IStateGrid <T> stateGrid, int xOffset, int yOffset)
{
List <GridRelativeState <T> > toReturn = new List <GridRelativeState <T> >();
for (int x = 0; x < stateGrid.Width; x++)
{
for (int y = 0; y < stateGrid.Height; y++)
{
GridRelativeState <T> state = new GridRelativeState <T>(
x + xOffset,
y + yOffset,
stateGrid.GetStateAtPosition(x, y));
toReturn.Add(state);
}
}
return(toReturn);
}
public static bool IsGridPatternAt <T>(IStateGrid <T> stateGrid, int x, int y, GridPattern <T> pattern)
{
int stateGridWidth = stateGrid.Width;
int stateGridHeight = stateGrid.Height;
foreach (GridRelativeState <T> include in pattern.mIncludePattern)
{
// included are required, so let's fail if an included is not here
if (x + include.X < 0 || y + include.Y < 0 || x + include.X >= stateGridWidth || y + include.Y >= stateGridHeight)
{
return(false);
}
T stateAtPosition = stateGrid.GetStateAtPosition(x + include.X, y + include.Y);
if (!stateAtPosition.Equals(include.State))
{
return(false);
}
}
foreach (GridRelativeStateList <T> orInclude in pattern.mOrIncludePattern)
{
if (x + orInclude.X < 0 || y + orInclude.Y < 0 || x + orInclude.X >= stateGridWidth || y + orInclude.Y >= stateGridHeight)
{
return(false);
}
T textureAtLocation = stateGrid.GetStateAtPosition(
x + orInclude.X,
y + orInclude.Y);
foreach (T state in orInclude.StateList)
{
if (state.Equals(textureAtLocation))
{
continue;
}
}
// If execution gets here then that means
// a texture didn't match one of the textures
// in the orinclude.
return(false);
}
foreach (GridRelativeState <T> exclude in pattern.mExcludePattern)
{
// The exclude pattern just says "it shouldn't be this", so anything outside of the bounds
// has nothing (unless we want to change this later) so just continue on these.
if (x + exclude.X < 0 || y + exclude.Y < 0 || x + exclude.X >= stateGridWidth || y + exclude.Y >= stateGridHeight)
{
continue;
}
if (stateGrid.GetStateAtPosition(x + exclude.X, y + exclude.Y).Equals(exclude.State))
{
return(false);
}
}
// If the function hasn't returned yet that means
// that all textures matched.
return(true);
}