sane makefile, sane structure, lots of updates

Makefile

@@ -1,13 +1,40 @@
-MAKEFLAGS := --jobs=$(shell nproc)
+MAKEFLAGS := --jobs=16
 # MAKEFLAGS += --output-sync=target
 
 # compiling with C++26
-BUILD_OPTS = -std=c++2c -Ofast -fdiagnostics-color=always 
+CXXFLAGS := -std=c++2c -Ofast -fdiagnostics-color=always -Iinclude
+# CXXFLAGS += -MMD -MP 
 
-build:
-	g++ -c $(BUILD_OPTS) -o main.o main.cpp
-	g++ -c $(BUILD_OPTS) -o LCDDisplay.o -Iinclude include/LCDDisplay.cpp
-	g++    $(BUILD_OPTS) -o linuxSmartie LCDDisplay.o main.o
+SOURCES := main.cpp $(wildcard src/*.cpp)
+OBJECTS := $(SOURCES:.cpp=.o)
+# DEPS := $(OBJECTS:.o=.d)
 
+TEST_SRC := test.cpp $(wildcard src/*.cpp)
+TEST_OBJS := $(TEST_SRC:.cpp=.o)
+
+# glowny target, linkuje linuxSmartie, potrzebuje ${OBJECTS}
+linuxSmartie: $(OBJECTS)
+	g++ $(CXXFLAGS) -o $@ $^
+
+# kompiluje test.cpp zamiast main.cpp
+test: $(TEST_OBJS)
+	g++ $(CXXFLAGS) -o $@ $^
+
+# kompiluje obiekty, potrzebuje zrodel cpp
+%.o: %.cpp
+	g++ $(CXXFLAGS) -c $< -o $@
+
+# -include $(DEPS)
+
+.PHONY: clean
 clean:
-	rm linuxSmartie *.o
+	rm -f linuxSmartie $(OBJECTS) $(DEPS) $(TEST_OBJS)
+
+
+# build:
+# 	g++ -c $(BUILD_OPTS) -o LCDDisplay.o -Iinclude include/LCDDisplay.cpp
+# 	g++ -c $(BUILD_OPTS) -o gpu.o -Iinclude include/gpu.cpp
+# 	g++ -c $(BUILD_OPTS) -o utils.o -Iinclude include/utils.cpp
+# 	g++ -c $(BUILD_OPTS) -o main.o main.cpp
+
+# 	g++    $(BUILD_OPTS) -o linuxSmartie *.o # linking