first commit - a kind of working thingy

Makefile

@@ -0,0 +1,60 @@
+#
+# A Makefile that compiles all .c and .s files in "src" and "res" 
+# subdirectories and places the output in a "obj" subdirectory
+#
+
+# If you move this project you can change the directory 
+# to match your GBDK root directory (ex: GBDK_HOME = "C:/GBDK/"
+GBDK_HOME = ./gbdk-2020/
+
+LCC = $(GBDK_HOME)bin/lcc 
+
+# You can set flags for LCC here
+# For example, you can uncomment the line below to turn on debug output
+# LCCFLAGS = -debug
+
+# You can set the name of the .gb ROM file here
+PROJECTNAME    = untitled2dshooter
+
+SRCDIR      = src
+OBJDIR      = obj
+RESDIR      = res
+BINS	    = $(OBJDIR)/$(PROJECTNAME).gb
+CSOURCES    = $(foreach dir,$(SRCDIR),$(notdir $(wildcard $(dir)/*.c))) $(foreach dir,$(RESDIR),$(notdir $(wildcard $(dir)/*.c)))
+ASMSOURCES  = $(foreach dir,$(SRCDIR),$(notdir $(wildcard $(dir)/*.s)))
+OBJS       = $(CSOURCES:%.c=$(OBJDIR)/%.o) $(ASMSOURCES:%.s=$(OBJDIR)/%.o)
+
+all:	prepare $(BINS)
+
+compile.bat: Makefile
+	@echo "REM Automatically generated from Makefile" > compile.bat
+	@make -sn | sed y/\\//\\\\/ | grep -v make >> compile.bat
+
+# Compile .c files in "src/" to .o object files
+$(OBJDIR)/%.o:	$(SRCDIR)/%.c
+	$(LCC) $(LCCFLAGS) -c -o $@ $<
+
+# Compile .c files in "res/" to .o object files
+$(OBJDIR)/%.o:	$(RESDIR)/%.c
+	$(LCC) $(LCCFLAGS) -c -o $@ $<
+
+# Compile .s assembly files in "src/" to .o object files
+$(OBJDIR)/%.o:	$(SRCDIR)/%.s
+	$(LCC) $(LCCFLAGS) -c -o $@ $<
+
+# If needed, compile .c files i n"src/" to .s assembly files
+# (not required if .c is compiled directly to .o)
+$(OBJDIR)/%.s:	$(SRCDIR)/%.c
+	$(LCC) $(LCCFLAGS) -S -o $@ $<
+
+# Link the compiled object files into a .gb ROM file
+$(BINS):	$(OBJS)
+	$(LCC) $(LCCFLAGS) -o $(BINS) $(OBJS)
+
+prepare:
+	mkdir -p $(OBJDIR)
+
+clean:
+#	rm -f  *.gb *.ihx *.cdb *.adb *.noi *.map
+	rm -f  $(OBJDIR)/*.*
+