1 files changed, 57 insertions, 0 deletions
diff --git a/V3/Input/Internal/MouseEvent.cs b/V3/Input/Internal/MouseEvent.cs
new file mode 100644
index 0000000..f8024aa
--- /dev/null
+++ b/V3/Input/Internal/MouseEvent.cs
@@ -0,0 +1,57 @@
+using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Input;
+
+namespace V3.Input.Internal
+{
+    /// <summary>
+    /// Default implementation of an event that is sent when a mouse button is
+    /// pressed or released.
+    /// </summary>
+    internal sealed class MouseEvent : IMouseEvent
+    {
+        /// <summary>
+        /// The mouse button that was pressed or released.
+        /// </summary>
+        public MouseButton MouseButton { get; }
+        /// <summary>
+        /// The state of the mouse button (pressed or released?).
+        /// </summary>
+        public ButtonState ButtonState { get; }
+        /// <summary>
+        /// The position where the mouse button was pressed the last time.
+        /// </summary>
+        public Point PositionPressed { get; }
+        /// <summary>
+        /// The position where the mouse button was released if this is a
+        /// release event, null otherwise.
+        /// </summary>
+        public Point? PositionReleased { get; }
+        /// <summary>
+        /// True if PositionReleased is a valid on-screen position, otherwise
+        /// false.
+        /// </summary>
+        public bool ReleasedOnScreen { get; }
+
+        /// <summary>
+        /// Creates a new mouse event with the given data.
+        /// </summary>
+        /// <param name="mouseButton">the mouse button that was pressed or
+        ///     released</param>
+        /// <param name="buttonState">the type of the event (pressed or
+        ///     released?)</param>
+        /// <param name="positionPressed">the position of the last press of
+        ///     the button</param>
+        /// <param name="positionReleased">the position of the release of the
+        ///     button if this is a release event, or null otherwise</param>
+        /// <param name="releasedOnScreen">true if positionReleased is a valid
+        ///     on-screen position.</param>
+        public MouseEvent(MouseButton mouseButton, ButtonState buttonState, Point positionPressed, Point? positionReleased, bool releasedOnScreen)
+        {
+            MouseButton = mouseButton;
+            ButtonState = buttonState;
+            PositionPressed = positionPressed;
+            PositionReleased = positionReleased;
+            ReleasedOnScreen = releasedOnScreen;
+        }
+    }
+}