Added CMake build for Linux

CMakeLists.txt

@@ -0,0 +1,90 @@
+cmake_minimum_required(VERSION 3.20)
+project(PathfindingDemo)
+
+set(CMAKE_CXX_STANDARD 23)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+# Find required packages
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(SDL3 REQUIRED sdl3)
+pkg_check_modules(SDL3_image REQUIRED sdl3-image)
+find_package(OpenGL REQUIRED)
+find_package(GLEW REQUIRED)
+
+# Add Google Test
+find_package(GTest REQUIRED)
+
+# Include directories
+include_directories(cpp/src)
+
+# Source files for the main executable
+set(MAIN_SOURCES
+    cpp/src/main.cpp
+    cpp/src/camera.cpp
+    cpp/src/entities.cpp
+    cpp/src/gameloop.cpp
+    cpp/src/map.cpp
+    cpp/src/pathfinder/base.cpp
+    cpp/src/pathfinder/bfs.cpp
+    cpp/src/pathfinder/dijkstra.cpp
+    cpp/src/pathfinder/gbfs.cpp
+    cpp/src/pathfinder/utils.cpp
+    cpp/src/pathfindingdemo.cpp
+    cpp/src/sprite.cpp
+    cpp/src/tile.cpp
+    cpp/src/user_input.cpp
+    cpp/src/window.cpp
+)
+
+# Header files (for IDE support)
+set(HEADERS
+    cpp/src/array.hpp
+    cpp/src/camera.hpp
+    cpp/src/entities.hpp
+    cpp/src/gameloop.hpp
+    cpp/src/log.hpp
+    cpp/src/map.hpp
+    cpp/src/math.hpp
+    cpp/src/pathfinder/base.hpp
+    cpp/src/pathfinder/bfs.hpp
+    cpp/src/pathfinder/dijkstra.hpp
+    cpp/src/pathfinder/gbfs.hpp
+    cpp/src/pathfinder/utils.hpp
+    cpp/src/pathfindingdemo.hpp
+    cpp/src/sprite.hpp
+    cpp/src/tile.hpp
+    cpp/src/user_input.hpp
+    cpp/src/window.hpp
+)
+
+# Create main executable
+add_executable(pathfinding_demo ${MAIN_SOURCES} ${HEADERS})
+
+# Link libraries for main executable
+target_link_libraries(pathfinding_demo 
+    ${SDL3_LIBRARIES} 
+    ${SDL3_image_LIBRARIES}
+    OpenGL::GL
+    GLEW::GLEW
+)
+
+# Add compile flags
+target_compile_options(pathfinding_demo PRIVATE ${SDL3_CFLAGS_OTHER})
+
+# Test executable
+add_executable(tests cpp/test/test.cpp)
+target_link_libraries(tests GTest::gtest GTest::gtest_main)
+
+# Enable testing
+enable_testing()
+add_test(NAME unit_tests COMMAND tests)
+
+# Compiler-specific options
+if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+    target_compile_options(pathfinding_demo PRIVATE -Wall -Wextra -Wpedantic)
+    target_compile_options(tests PRIVATE -Wall -Wextra -Wpedantic)
+endif()
+
+# Debug/Release configurations
+set(CMAKE_CXX_FLAGS_DEBUG "-g -O0")
+set(CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG")