put multiple source file for evaluation into eval.cpp and add tuning functionability

Author: winapiadmin

Makefile

@@ -0,0 +1,32 @@
+# Compiler and Flags
+CXX = g++
+
+# Source files and object files
+SRC = main.cpp eval.cpp search.cpp
+OBJ = $(SRC:.cpp=.o)
+
+# Output file
+EXEC = chess_engine
+
+# Default target: build the project
+all: $(EXEC)
+
+# Linking the object files into the executable
+$(EXEC): $(OBJ)
+	$(CXX) $(CXXFLAGS) -std=c++17 -o $(EXEC) $(OBJ)
+
+# Rule to build object files from source files
+%.o: %.cpp
+	$(CXX) $(CXXFLAGS) -std=c++17 -c $< -o $@
+
+# Clean up the compiled files
+clean:
+	rm -f $(OBJ) $(EXEC)
+
+# To run the program after compilation
+run: $(EXEC)
+	./$(EXEC)
+
+# Rebuild the project
+rebuild: clean all
+