celesteia archive, last updated april 9th 2024

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

1 files changed, 37 insertions, 0 deletions

diff --git a/source/game/input/MouseHelper.cs b/source/game/input/MouseHelper.cs
new file mode 100644
index 0000000..3000c6e
--- /dev/null
+++ b/source/game/input/MouseHelper.cs
@@ -0,0 +1,37 @@
+using Celesteia.Game.Input.Definitions;
+using Microsoft.Xna.Framework;
+using MonoGame.Extended.Input;
+
+namespace Celesteia.Game.Input {
+    public static class MouseHelper {
+        private static MouseStateExtended _prev;
+        private static MouseStateExtended _curr;
+
+        public static int ScrollDelta => _curr.ScrollWheelValue - _prev.ScrollWheelValue;
+
+        // Get the position of the mouse pointer on the SCREEN, not the VIEWPORT.
+        public static Point Position => _curr.Position;
+
+        public static void Update() {
+            _prev = _curr;
+            _curr = MouseExtended.GetState();
+        }
+
+        // Was true, now true.
+        public static bool Held(MouseButton button) => _prev.IsButtonDown(button) && _curr.IsButtonDown(button);
+        // Is true.
+        public static bool IsDown(MouseButton button) => _curr.IsButtonDown(button);
+        // Was false, now true.
+        public static bool Pressed(MouseButton button) => !_prev.IsButtonDown(button) && _curr.IsButtonDown(button);
+        // Was true, now false.
+        public static bool Released(MouseButton button) => _prev.IsButtonDown(button) && !_curr.IsButtonDown(button);
+
+        public static bool Poll(MouseButton button, InputPollType type) => type switch {
+            InputPollType.Held => Held(button),
+            InputPollType.IsDown => IsDown(button),
+            InputPollType.Pressed => Pressed(button),
+            InputPollType.Released => Released(button),
+            _ => false
+        };
+    }
+}
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