diff --git a/src/input.rs b/src/input.rs
new file mode 100644
index 0000000..814206c
--- /dev/null
+++ b/src/input.rs
@@ -0,0 +1,25 @@
+use std::collections::HashSet;
+
+use evdev::{AbsoluteAxisCode, Device, EventSummary, KeyCode};
+
+struct InputState {
+    x: i32,
+    y: i32,
+    keys_down: HashSet<KeyCode>,
+    keys_pressed_this_update: HashSet<KeyCode>,
+    keys_released_this_update: HashSet<KeyCode>,
+    clear_before_next_event: bool,
+}
+
+impl InputState {
+    pub fn new() -> Self {
+        Self {
+            x: 0,
+            y: 0,
+            keys_down: HashSet::new(),
+            keys_pressed_this_update: HashSet::new(),
+            keys_released_this_update: HashSet::new(),
+            clear_before_next_event: true,
+        }
+    }
+}