celesteia archive, last updated april 9th 2024

Signed-off-by: hazel <hazel@hazelthats.me>

1 files changed, 53 insertions, 0 deletions

diff --git a/source/game/input/KeyboardHelper.cs b/source/game/input/KeyboardHelper.cs
new file mode 100644
index 0000000..a8fd4f0
--- /dev/null
+++ b/source/game/input/KeyboardHelper.cs
@@ -0,0 +1,53 @@
+using System.Collections.Generic;
+using System.Linq;
+using Celesteia.Game.Input.Definitions;
+using Microsoft.Xna.Framework.Input;
+using MonoGame.Extended.Input;
+
+namespace Celesteia.Game.Input {
+    public static class KeyboardHelper {
+        private static KeyboardStateExtended _prev;
+        private static KeyboardStateExtended _curr;
+
+        public static void Update() {
+            _prev = _curr;
+            _curr = KeyboardExtended.GetState();
+        }
+
+        // Is any key (excluding the exemptions) down in the current state?
+        public static List<Keys> exemptedFromAny = new List<Keys> {
+            { Keys.F3 }, { Keys.F11 }
+        };
+
+        private static Keys[] pressed;
+        public static bool AnyKey() {
+            pressed = _curr.GetPressedKeys();
+            bool anyKey = pressed.Length > 0;
+            
+            if (anyKey)
+                for (int i = 0; i < exemptedFromAny.Count; i++)
+                    anyKey = !pressed.Contains(exemptedFromAny[i]);
+
+            return anyKey;
+        }
+
+        // Was true, now true.
+        public static bool Held(Keys keys) => _prev.IsKeyDown(keys) && _curr.IsKeyDown(keys);
+        // Is true.
+        public static bool IsDown(Keys keys) => _curr.IsKeyDown(keys);
+        // Was false, now true.
+        public static bool Pressed(Keys keys) => !_prev.IsKeyDown(keys) && _curr.IsKeyDown(keys);
+        // Was true, now false.
+        public static bool Released(Keys keys) => _prev.IsKeyDown(keys) && !_curr.IsKeyDown(keys);
+
+        public static bool Poll(Keys keys, InputPollType type) => type switch {
+            InputPollType.Held => Held(keys),
+            InputPollType.IsDown => IsDown(keys),
+            InputPollType.Pressed => Pressed(keys),
+            InputPollType.Released => Released(keys),
+            _ => false
+        };
+    }
+
+    
+}
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