/// <summary>
/// Responds to user input, changing the selected entry and accepting
/// or cancelling the menu.
/// </summary>
public override void HandleInput(InputState input)
{
int dirX = 0, dirY = 0;
//figure out the directions to move
if (input.IsMenuUp(ControllingPlayer))
dirX = -1;
if (input.IsMenuDown(ControllingPlayer))
dirX = 1;
if (input.IsMenuLeft(ControllingPlayer))
dirY = -1;
if (input.IsMenuRight(ControllingPlayer))
dirY = 1;
//if horizontal orientation, swap directions
if (!IsVertical) {
int temp = dirX;
dirX = dirY;
dirY = temp;
}
//process row movement
if (dirX != 0) {
if (selectedEntry.Column < 0 || selectedEntry.Column >= menuColumns.Length)
selectedEntry.Column = 0;
int length = menuColumns[selectedEntry.Column].Count;
do {
selectedEntry.Row += dirX;
if (selectedEntry.Row < 0)
selectedEntry.Row = length - 1;
selectedEntry.Row %= length;
} while (!Selected.Enabled);
}
//handle column selection (left/right)
//ultimately, index selection will also be in here
// if the index can go up/down, let it. otherwise, change columns. easy.
if (dirY != 0) {
if (selectedEntry.Row < 0 || selectedEntry.Row >= menuColumns[selectedEntry.Column].Count)
selectedEntry.Row = 0;
if (relativeSelection)
ChangeColumnsRelative(dirY);
else
ChangeColumns(dirY);
}
// Accept or cancel the menu? We pass in our ControllingPlayer, which may
// either be null (to accept input from any player) or a specific index.
// If we pass a null controlling player, the InputState helper returns to
// us which player actually provided the input. We pass that through to
// OnSelectEntry and OnCancel, so they can tell which player triggered them.
PlayerIndex playerIndex;
if (input.IsMenuSelect(ControllingPlayer, out playerIndex)) {
OnSelectEntry(selectedEntry, playerIndex);
}
else if (input.IsMenuCancel(ControllingPlayer, out playerIndex)) {
OnCancel(playerIndex);
}
#region Mouse Handling
#if WINDOWS
bool clicked = input.IsNewMouseButtonPress(MouseButtons.Left);
if (input.IsMouseMoved() || clicked) {
mousePosition.X = input.CurrentMouseState.X;
mousePosition.Y = input.CurrentMouseState.Y;
//check mouse pos against each menu entry and update selection if necessary
if (AllowEmptySelection)
selectedEntry.Column = selectedEntry.Row = selectedEntry.Index = -5;
for (int col = 0; col < menuColumns.Length; col++) {
for (int i = 0; i < menuColumns[col].Count; i++) {
MenuEntry menuEntry = menuColumns[col][i];
if (menuEntry.Contains(mousePosition) && menuEntry.Enabled) {
selectedEntry.Column = col;
selectedEntry.Row = i;
if (clicked)
OnSelectEntry(selectedEntry, PlayerIndex.One);
}
}
}
}
#endif
HandleSpecialInput(input, Selected);
#endregion
}