public GestureArenaEntry add(int pointer, GestureArenaMember member)
{
_GestureArena state = this._arenas.putIfAbsent(pointer, () => {
D.assert(this._debugLogDiagnostic(pointer, () => "★ Opening new gesture arena."));
return(state = new _GestureArena());
});
state.add(member);
D.assert(this._debugLogDiagnostic(pointer, () => $"Adding: {member}"));
return(new GestureArenaEntry(this, pointer, member));
}
void _resolveByDefault(int pointer, _GestureArena state)
{
if (!_arenas.ContainsKey(pointer))
{
return;
}
D.assert(_arenas[pointer] == state);
D.assert(!state.isOpen);
D.assert(state.members.Count == 1);
_arenas.Remove(pointer);
D.assert(_debugLogDiagnostic(pointer,
() => $"Default winner: {state.members.First()}"));
state.members[0].acceptGesture(pointer);
}
void _resolveByDefault(int pointer, _GestureArena state)
{
if (!this._arenas.ContainsKey(pointer))
{
return;
}
D.assert(this._arenas[pointer] == state);
D.assert(!state.isOpen);
List <GestureArenaMember> members = state.members;
D.assert(members.Count == 1);
this._arenas.Remove(pointer);
D.assert(this._debugLogDiagnostic(pointer,
$"Default winner: {state.members.First()}"));
state.members.First().acceptGesture(pointer);
}
bool _debugLogDiagnostic(int pointer, Func <string> message, _GestureArena state = null)
{
D.assert(() => {
if (D.debugPrintGestureArenaDiagnostics)
{
int?count = state?.members.Count;
string s = count != 1 ? "s" : "";
Debug.LogFormat("Gesture arena {0} ❙ {1}{2}",
pointer.ToString().PadRight(4),
message(),
count != null ? $" with {count} member{s}." : "");
}
return(true);
});
return(true);
}
void _resolveInFavorOf(int pointer, _GestureArena state, GestureArenaMember member)
{
D.assert(state == this._arenas[pointer]);
D.assert(state != null);
D.assert(state.eagerWinner == null || state.eagerWinner == member);
D.assert(!state.isOpen);
this._arenas.Remove(pointer);
foreach (GestureArenaMember rejectedMember in state.members)
{
if (rejectedMember != member)
{
rejectedMember.rejectGesture(pointer);
}
}
member.acceptGesture(pointer);
}
void _tryToResolveArena(int pointer, _GestureArena state)
{
D.assert(this._arenas[pointer] == state);
D.assert(!state.isOpen);
if (state.members.Count == 1)
{
Window.instance.scheduleMicrotask(() => this._resolveByDefault(pointer, state));
}
else if (state.members.isEmpty())
{
this._arenas.Remove(pointer);
D.assert(this._debugLogDiagnostic(pointer, () => "Arena empty."));
}
else if (state.eagerWinner != null)
{
D.assert(this._debugLogDiagnostic(pointer,
() => $"Eager winner: {state.eagerWinner}"));
this._resolveInFavorOf(pointer, state, state.eagerWinner);
}
}
