License, readme

v3/raycaster.py

@@ -1,8 +1,23 @@
 #!/usr/bin/env python3
 
-# RAYCASTER
+# PYTHON RAYCASTER
 # Inspired by https://www.youtube.com/watch?v=gYRrGTC7GtA
-#
+# Copyright (C) 2023 Daniele Verducci
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# REQUIREMENTS:
 # pip install pysdl2 pysdl2-dll pypng
 
 import sys