Change project layout

Author: atalamanov

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "thirdparty/googletest"]
+	path = thirdparty/googletest
+	url = https://github.com/google/googletest.git

CMakeLists.txt

@@ -1,16 +1,58 @@
-project(render-sample)
 cmake_minimum_required(VERSION 3.15)
+
+########################################
+# Project setup
+########################################
+project(raytracer)
+
+########################################
+# Set up the compiler flags
+########################################
 set(CMAKE_CXX_STANDARD 17)
 
-add_executable(raytracer-tests raytracer-tests.cpp)
+########################################
+# Define output paths
+########################################
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
+
+########################################
+# Define basic flags
+########################################
+option(BUILD_TESTS "Build raytracer with tests" ON)
+
+add_subdirectory(thirdparty)
+
+set(SRC_FILES
+    # API
+    ${CMAKE_CURRENT_LIST_DIR}/src/image.cpp
+    ${CMAKE_CURRENT_LIST_DIR}/src/render.cpp
+    # IMPLEMENTATION
+    ${CMAKE_CURRENT_LIST_DIR}/src/tokenizer.cpp
+    ${CMAKE_CURRENT_LIST_DIR}/src/builder.cpp
+    ${CMAKE_CURRENT_LIST_DIR}/src/datatypes.cpp
+    ${CMAKE_CURRENT_LIST_DIR}/src/object.cpp
+    ${CMAKE_CURRENT_LIST_DIR}/src/parser.cpp
+)
 
-add_executable(${PROJECT_NAME} main.cpp)
+set(Raytracer_INCLUDE_DIR "${PROJECT_SOURCE_DIR}/include/")
+add_library(${PROJECT_NAME} SHARED ${SRC_FILES})
+# Set public API
+target_include_directories(${PROJECT_NAME}
+                           PUBLIC ${Raytracer_INCLUDE_DIR}
+                           PRIVATE "${PROJECT_SOURCE_DIR}/src")
+# Add dependencies
 find_package(PNG REQUIRED)
 find_package(JPEG REQUIRED)
 target_link_libraries(${PROJECT_NAME} ${PNG_LIBRARY} ${JPEG_LIBRARIES})
 
+# Tool
+add_executable(raytracer-tool main.cpp)
+target_link_libraries(raytracer-tool ${PROJECT_NAME})
 
+# Tests
 enable_testing()
+add_executable(raytracer-tests raytracer_tests.cpp)
 include_directories(${gtest_SOURCE_DIR}/include ${gtest_SOURCE_DIR})
 target_link_libraries(raytracer-tests gtest gtest_main)
-target_link_libraries(raytracer-tests ${PNG_LIBRARY} ${JPEG_LIBRARIES})
+target_link_libraries(raytracer-tests ${PROJECT_NAME})