Triangle posting

https://vulkan-tutorial.com/Vertex_buffers/Staging_buffer

Reached the above part of the tutorial. Adding IMGUI now before
continuing.

Makefile

@@ -1,13 +1,27 @@
 CXX = g++
 
-CFLAGS = -std=c++20 -O2 -Wall -Wextra -I./include
+CXXFLAGS = -std=c++20 -O2 -Wall -Wextra -I./include -I./src -I./src/private -I./src/public
 
 LDFLAGS = -lglfw -lvulkan -ldl -lpthread -lX11 -lXxf86vm -lXrandr -lXi
 
-TARGET := LearningVulkan
+BUILDDIR = build
+OBJDIR = $(BUILDDIR)/obj
 
-$(TARGET): ./src/main.cpp
-	$(CXX) $(CFLAGS) -o $(TARGET) ./src/main.cpp $(LDFLAGS)
+SOURCES = $(shell find ./src -name "*.cpp")
+
+OBJECTS = $(SOURCES:./src/%.cpp=$(OBJDIR)/%.o)
+
+TARGET = LearningVulkan
+
+$(OBJDIR):
+	@mkdir -p $@
+
+$(OBJDIR)/%.o: ./src/%.cpp | $(OBJDIR)
+	@mkdir -p $(@D)
+	$(CXX) $(CXXFLAGS) -c $< -o $@   
+
+$(TARGET): $(OBJECTS)
+	$(CXX) $(OBJECTS) -o $@ $(LDFLAGS)
 
 .PHONY: test clean
 
@@ -15,4 +29,4 @@ test: $(TARGET)
 	./$(TARGET)
 
 clean:
-	rm -f $(TARGET) 
+	rm -rf $(BUILDDIR)