X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=Makefile;h=28a06f246d4c087d8b212f748cf736dc21663c9c;hb=c78af1fbe8db3d24f5ffdb8bd272748abe7bd0e5;hp=668f3770558579304e301f5e57abaf4c1e921c26;hpb=94a54bd03c21ec9339c2fe9b984fa13db813795e;p=shadowclad.git

diff --git a/Makefile b/Makefile
index 668f377..28a06f2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,56 +1,102 @@
-CFLAGS ::= -g -Wall -Wextra -Wpedantic $(CFLAGS)
+PLATFORM ?= x86_64-linux-gnu
+
+BUILDDIR ?= target/$(PLATFORM)
+SRCDIR ?= src
+
+CPPFLAGS ::= -iquotesrc/ $(CPPFLAGS)
+CFLAGS ::= -g -std=c99 -Wall -Wextra -Wpedantic $(CFLAGS)
 LDFLAGS ::= $(LDFLAGS)
 LDLIBS ::= -L/usr/local/lib -lGL -lGLEW -lglut -lassimp $(LDLIBS)
 
-# Prefix all object file names with the compilation directory
-objects ::= $(addprefix out/, \
-              main.o debugutil.o level.o logger.o \
-              performance.o render.o tga.o ui.o)
-
-# Set executable extension for the platform
-ifeq ($(OS),Windows_NT)
-	binext ::= .exe
-else
-	binext ::=
-endif
-binary ::= out/shadowclad$(binext)
-
-# Default target: build executable
-$(binary) : $(objects) | out
+# ######
+# Paths
+# ######
+
+sources ::= main.c \
+            engine/asset.c \
+            engine/logger.c \
+            engine/performance.c \
+            engine/render.c \
+            engine/tga.c \
+            engine/ui.c \
+            game/level.c \
+            game/player.c
+
+srcfiles ::= $(addprefix $(SRCDIR)/, $(sources))
+
+objects ::= $(addprefix $(BUILDDIR)/, $(addsuffix .o, $(srcfiles)))
+depfiles ::= $(addprefix $(BUILDDIR)/, $(addsuffix .mk, $(srcfiles)))
+
+# Set executable name for the platform
+# TODO Base this on target platform instead of host OS
+#ifeq ($(OS),Windows_NT)
+#	binext ::= .exe
+#else
+#	binext ::=
+#endif
+binary ::= $(BUILDDIR)/shadowclad #$(binext)
+
+# ######
+# Main build rules
+# ######
+
+# Default rule: build executable
+$(binary): $(objects)
+	@mkdir -p $(@D)
 	@echo "###### Linking executable..."
-	$(CC) $(LDFLAGS) -o $(binary) $(objects) $(LOADLIBES) $(LDLIBS)
+	$(CC) $(LDFLAGS) -o $(binary) $^ $(LOADLIBES) $(LDLIBS)
+
+# Build C translation units
+$(objects): $(BUILDDIR)/%.c.o: %.c $(BUILDDIR)/%.c.mk
+	@mkdir -p $(@D)
+	$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<
+
+# ######
+# Setup
+# ######
 
-# Alias for default target
-shadowclad : $(binary)
-.PHONY : shadowclad
+# Initialise build environment
+init:
+	mkdir -p $(BUILDDIR)
+.PHONY: init
+
+# ######
+# Aliases
+# ######
 
 # Build and run
-run : $(binary)
+run: $(binary)
 	@echo
-	LD_LIBRARY_PATH=/usr/local/lib $(binary)
-.PHONY : run
+	@LD_LIBRARY_PATH=/usr/local/lib $(binary)
+.PHONY: run
 
-# Create compilation directory
-out :
-	mkdir out/
+# Build executable
+shadowclad: $(binary)
+.PHONY: shadowclad
 
-# Alias for 'out'
-init : out
-.PHONY : init
+# ######
+# Prerequisites
+# ######
 
-# Generate dependencies
-out/%.make : %.c Makefile | out
-	$(CPP) -MM -MT out/$*.o -MF $@ $(CPPFLAGS) $<
+# Generate C prerequisite makefiles
+$(depfiles): $(BUILDDIR)/%.c.mk: %.c Makefile
+	@mkdir -p $(@D)
+	@echo "Generating prerequisites for $<"
+	@$(CPP) -MM -MT $(BUILDDIR)/$*.c.o -MF $@ $(CPPFLAGS) $<
+# Give the same prerequisites to the prerequisite makefile,
+# so that it is regenerated whenever any of said prerequisites change
+	@sed -E -i 's|^([^\s:]+)([ :])|\1 $@\2|' $@
 
-# Include generated rules
--include $(addsuffix .make, $(basename $(objects)))
+# Include generated C prerequisites
+include $(foreach depfile, $(depfiles), $(shell [ -r "$(depfile)" ] && echo "$(depfile)"))
 
-# Build compilation units
-out/%.o : %.c out/%.make | out
-	$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<
+# Do not automatically delete generated prerequisites
+.SECONDARY: $(depfiles)
+
+# ######
+# Cleanup rules
+# ######
 
-# Delete build output
-clean : out
-	rm -f $(binary) out/*.o out/*.make
-	rm -d out/
-.PHONY : clean
+clean:
+	rm -rf $(BUILDDIR)
+.PHONY: clean