Merge branch 'main' of https://git.mslockbo.org/mslockbo/fennec

- Finished map implementation and unit tests

 TODO: Threading

READINGS.md

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+
+
+
+# Readings
+
+Here is a list of relevant books and articles on various concepts related to  
+developing a game engine and its subsystems.
+
+ - Game Engine Architecture, Ed. 3 – Jason Gregory
+   - https://www.gameenginebook.com/
+ - OpenGL 4 Shading Language Cookbook, Ed. 3 – David A. Wolff
+   - https://www.packtpub.com/en-us/product/opengl-4-shading-language-cookbook-9781789340662
+ - Design Patterns: Elements of Reusable Object-Oriented Software – Erich Gamma, Richard Helm, Ralph Johnson, John Vilssides
+   - https://www.oreilly.com/library/view/design-patterns-elements/0201633612/
+ - Head First Design Patterns – Eric FReeman, Elisabeth Robson, Bert Bates, Kathy Sierra
+   - https://www.oreilly.com/library/view/head-first-design/0596007124/

cmake/unix.cmake

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+# ======================================================================================================================
+#  fennec, a free and open source game engine
+#  Copyright © 2025  Medusa Slockbower
+#
+#  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/>.
+# ======================================================================================================================
+
+# compile definitions
+list(APPEND FENNEC_COMPILE_DEFINITIONS
+        FENNEC_PLATFORM_UNIX=1
+)