diff --git a/src/window/input.cpp b/src/window/input.cpp
new file mode 100644
index 00000000..ce7f54eb
--- /dev/null
+++ b/src/window/input.cpp
@@ -0,0 +1,43 @@
+#include "input.h"
+#include <GLFW/glfw3.h>
+
+int keycode::ENTER = GLFW_KEY_ENTER;
+int keycode::TAB = GLFW_KEY_TAB;
+int keycode::F1 = GLFW_KEY_F1;
+int keycode::F2 = GLFW_KEY_F2;
+int keycode::F3 = GLFW_KEY_F3;
+int keycode::F4 = GLFW_KEY_F4;
+int keycode::F5 = GLFW_KEY_F5;
+int keycode::F6 = GLFW_KEY_F6;
+int keycode::F7 = GLFW_KEY_F7;
+int keycode::F8 = GLFW_KEY_F8;
+int keycode::F9 = GLFW_KEY_F9;
+int keycode::F10 = GLFW_KEY_F10;
+int keycode::F11 = GLFW_KEY_F11;
+int keycode::F12 = GLFW_KEY_F12;
+int keycode::A = GLFW_KEY_A;
+int keycode::B = GLFW_KEY_B;
+int keycode::C = GLFW_KEY_C;
+int keycode::D = GLFW_KEY_D;
+int keycode::E = GLFW_KEY_E;
+int keycode::F = GLFW_KEY_F;
+int keycode::G = GLFW_KEY_G;
+int keycode::H = GLFW_KEY_H;
+int keycode::I = GLFW_KEY_I;
+int keycode::J = GLFW_KEY_J;
+int keycode::K = GLFW_KEY_K;
+int keycode::L = GLFW_KEY_L;
+int keycode::M = GLFW_KEY_M;
+int keycode::N = GLFW_KEY_N;
+int keycode::O = GLFW_KEY_O;
+int keycode::P = GLFW_KEY_P;
+int keycode::Q = GLFW_KEY_Q;
+int keycode::R = GLFW_KEY_R;
+int keycode::S = GLFW_KEY_S;
+int keycode::T = GLFW_KEY_T;
+int keycode::U = GLFW_KEY_U;
+int keycode::V = GLFW_KEY_V;
+int keycode::W = GLFW_KEY_W;
+int keycode::X = GLFW_KEY_X;
+int keycode::Y = GLFW_KEY_Y;
+int keycode::Z = GLFW_KEY_Z;
\ No newline at end of file
diff --git a/src/window/input.h b/src/window/input.h
new file mode 100644
index 00000000..a41da6b9
--- /dev/null
+++ b/src/window/input.h
@@ -0,0 +1,47 @@
+#ifndef WINDOW_INPUT_H_
+#define WINDOW_INPUT_H_
+
+namespace keycode {
+    extern int ENTER;
+    extern int TAB;
+    extern int F1;
+    extern int F2;
+    extern int F3;
+    extern int F4;
+    extern int F5;
+    extern int F6;
+    extern int F7;
+    extern int F8;
+    extern int F9;
+    extern int F10;
+    extern int F11;
+    extern int F12;
+    extern int A;
+    extern int B;
+    extern int C;
+    extern int D;
+    extern int E;
+    extern int F;
+    extern int G;
+    extern int H;
+    extern int I;
+    extern int J;
+    extern int K;
+    extern int L;
+    extern int M;
+    extern int N;
+    extern int O;
+    extern int P;
+    extern int Q;
+    extern int R;
+    extern int S;
+    extern int T;
+    extern int U;
+    extern int V;
+    extern int W;
+    extern int X;
+    extern int Y;
+    extern int Z;
+}
+
+#endif // WINDOW_INPUT_H_
\ No newline at end of file