keii.dev
1using System.Reflection;
2using Fjord.Scenes;
3
4namespace Fjord.Input;
5
6public record InputEvent {
7 public record Keyboard(Key key, params Mod[] mods) : InputEvent();
8 public record Mouse(MB mb, params Mod[] mods) : InputEvent();
9}
10
11public interface InputAction
12{
13 public InputEvent[] Events { get; init; }
14}
15
16public static class GlobalInput
17{
18 private static List<InputAction> _actions = new();
19
20 public static void Initialize()
21 {
22 Assembly[] assemblies = AppDomain.CurrentDomain.GetAssemblies();
23 foreach(var assembly in assemblies) {
24 var derivedTypes = assembly.GetTypes().Where(t =>
25 t != typeof(InputAction) &&
26 typeof(InputAction).IsAssignableFrom(t));
27
28 foreach (var type in derivedTypes)
29 {
30 var action = Activator.CreateInstance(type) as InputAction;
31 _register(action!);
32 }
33 }
34 }
35
36 public static bool Pressed<T>() where T : InputAction
37 {
38 for (var i = 0; i < _actions.Count; i++)
39 {
40 if(_actions[i].GetType() != typeof(T))
41 continue;
42
43 return _actions[i].Events.Any(e => e switch {
44 InputEvent.Keyboard ev => GlobalKeyboard.Pressed(ev.key, ev.mods),
45 InputEvent.Mouse ev => GlobalMouse.Pressed(ev.mb, ev.mods),
46 _ => false
47 });
48 }
49
50 return false;
51 }
52
53 public static bool Released<T>() where T : InputAction
54 {
55 for (var i = 0; i < _actions.Count; i++)
56 {
57 if(_actions[i].GetType() != typeof(T))
58 continue;
59
60 return _actions[i].Events.Any(e => e switch {
61 InputEvent.Keyboard ev => GlobalKeyboard.Released(ev.key, ev.mods),
62 InputEvent.Mouse ev => GlobalMouse.Released(ev.mb, ev.mods),
63 _ => false
64 });
65 }
66
67 return false;
68 }
69
70 public static bool Down<T>() where T : InputAction
71 {
72 for (var i = 0; i < _actions.Count; i++)
73 {
74 if(_actions[i].GetType() != typeof(T))
75 continue;
76
77 return _actions[i].Events.Any(e => e switch {
78 InputEvent.Keyboard ev => GlobalKeyboard.Down(ev.key, ev.mods),
79 InputEvent.Mouse ev => GlobalMouse.Down(ev.mb, ev.mods),
80 _ => false
81 });
82 }
83
84 return false;
85 }
86
87 private static void _register(InputAction action)
88 {
89 _actions.Add(action);
90 }
91}