Files
crtr/Assets/Cryville/Common/Unity/Input/InputManager.cs

95 lines
2.8 KiB
C#

using System;
using System.Collections.Generic;
using System.Reflection;
namespace Cryville.Common.Unity.Input {
public class InputManager {
static readonly List<Type> HandlerRegistries = new List<Type> {
typeof(WindowsPointerHandler),
typeof(UnityKeyHandler<UnityKeyboardReceiver>),
typeof(UnityKeyHandler<UnityMouseButtonReceiver>),
typeof(UnityMouseHandler),
typeof(UnityTouchHandler),
};
// TODO set private
public readonly List<InputHandler> _handlers = new List<InputHandler>();
readonly Dictionary<Type, InputHandler> _typemap = new Dictionary<Type, InputHandler>();
readonly Dictionary<InputHandler, double> _timeOrigins = new Dictionary<InputHandler, double>();
readonly object _lock = new object();
readonly Dictionary<InputIdentifier, InputVector> _vectors = new Dictionary<InputIdentifier, InputVector>();
readonly List<InputEvent> _events = new List<InputEvent>();
public InputManager() {
foreach (var t in HandlerRegistries) {
try {
if (!typeof(InputHandler).IsAssignableFrom(t)) continue;
var h = (InputHandler)ReflectionHelper.InvokeEmptyConstructor(t);
_typemap.Add(t, h);
h.OnInput += OnInput;
_handlers.Add(h);
_timeOrigins.Add(h, 0);
Logger.Log("main", 1, "Input", "Initialized {0}", ReflectionHelper.GetSimpleName(t));
}
catch (TargetInvocationException ex) {
Logger.Log("main", 1, "Input", "Cannot initialize {0}: {1}", ReflectionHelper.GetSimpleName(t), ex.InnerException.Message);
}
}
}
public InputHandler GetHandler(string name) {
return _typemap[Type.GetType(name)];
}
public void Activate() {
lock (_lock) {
_events.Clear();
}
foreach (var h in _handlers) h.Activate();
}
public void SyncTime(double time) {
foreach (var h in _handlers) {
_timeOrigins[h] = time - h.GetCurrentTimestamp();
}
}
public void Deactivate() {
foreach (var h in _handlers) h.Deactivate();
}
void OnInput(InputIdentifier id, InputVector vec) {
lock (_lock) {
double timeOrigin = _timeOrigins[id.Source.Handler];
vec.Time += timeOrigin;
InputVector vec0;
if (_vectors.TryGetValue(id, out vec0)) {
_events.Add(new InputEvent {
Id = id,
From = vec0,
To = vec,
});
if (vec.IsNull) _vectors.Remove(id);
else _vectors[id] = vec;
}
else {
_events.Add(new InputEvent {
Id = id,
From = new InputVector(vec.Time),
To = vec,
});
_vectors.Add(id, vec);
}
}
}
public void EnumerateEvents(Action<InputEvent> cb) {
lock (_lock) {
foreach (var ev in _events) cb(ev);
_events.Clear();
}
}
}
public struct InputEvent {
public InputIdentifier Id { get; set; }
public InputVector From { get; set; }
public InputVector To { get; set; }
public override string ToString() {
return string.Format("[{0}] {1} -> {2}", Id, From, To);
}
}
}