#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------

ifeq ($(strip $(DEVKITARM)),)
$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
endif

TOPDIR ?= $(CURDIR)
include $(DEVKITARM)/3ds_rules

TARGET		:=	nzportable
BUILD		:=	build
SOURCES		:=	source
DATA		:=	data
INCLUDES	:=	include
#ROMFS		:=	romfs

APP_AUTHOR 		:= Naievil
APP_TITLE 		:= Nazi Zombies Portable
APP_DESCRIPTION := NZP based on ctrQuake

#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH	:=	-march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft

CFLAGS	:=	-g -Wall -O3 -mword-relocations \
			-fomit-frame-pointer -ffunction-sections \
			$(ARCH)

CFLAGS	+=	$(INCLUDE)  -D__3DS__ -DGLQUAKE

CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11

ASFLAGS	:=	-g $(ARCH)
LDFLAGS	=	-specs=3dsx.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)

LIBS	:=  -lpicaGL -lctru -lm

#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS	:= $(CTRULIB) $(DEVKITPRO)/picaGL


#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------

export OUTPUT	:=	$(CURDIR)/$(TARGET)
export TOPDIR	:=	$(CURDIR)

export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
			$(foreach dir,$(DATA),$(CURDIR)/$(dir))

export DEPSDIR	:=	$(CURDIR)/$(BUILD)

COMMON_OBJS =	chase.c \
                                cl_hud.c \
				cl_demo.c \
				cl_input.c \
				cl_main.c \
				cl_parse.c \
				cl_tent.c \
				cmd.c \
				common.c \
				console.c \
				crc.c \
				cvar.c \
				host.c \
				host_cmd.c \
				keys.c \
				mathlib.c \
				menu.c \
				net_dgrm.c \
				net_udpctr.c \
				net_loop.c \
				net_bsd.c \
				net_main.c \
				net_vcr.c \
				pr_cmds.c \
				pr_edict.c \
				pr_exec.c \
				sbar.c \
				sv_main.c \
				sv_move.c \
				sv_phys.c \
				sv_user.c \
				view.c \
				wad.c \
				world.c \
				zone.c \
				sys_ctr.c \
				snd_dma.c \
				snd_mix.c \
				snd_mem.c \
				snd_ctr.c \
				in_null.c \
				cd_null.c \
				gl_draw.c \
                                gl_fog.c \
				gl_mesh.c \
				gl_model.c \
				gl_refrag.c \
				gl_rlight.c \
				gl_rmain.c \
				gl_rmisc.c \
				gl_rsurf.c \
				gl_screen.c \
				gl_warp.c \
				gl_vidctr.c \
				r_part.c \
				touch_ctr.c

CFILES		:=	$(COMMON_OBJS)
CPPFILES	:=	
SFILES		:=	
PICAFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.v.pica)))
SHLISTFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.shlist)))
BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))

#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
	export LD	:=	$(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
	export LD	:=	$(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------

export OFILES_SOURCES 	:=	$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)

export OFILES_BIN	:=	$(addsuffix .o,$(BINFILES)) \
			$(PICAFILES:.v.pica=.shbin.o) $(SHLISTFILES:.shlist=.shbin.o)

export OFILES := $(OFILES_BIN) $(OFILES_SOURCES)

export HFILES	:=	$(PICAFILES:.v.pica=_shbin.h) $(SHLISTFILES:.shlist=_shbin.h) $(addsuffix .h,$(subst .,_,$(BINFILES)))

export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
			$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
			-I$(CURDIR)/$(BUILD)

export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)

ifeq ($(strip $(ICON)),)
	icons := $(wildcard *.png)
	ifneq (,$(findstring $(TARGET).png,$(icons)))
		export APP_ICON := $(TOPDIR)/$(TARGET).png
	else
		ifneq (,$(findstring icon.png,$(icons)))
			export APP_ICON := $(TOPDIR)/icon.png
		endif
	endif
else
	export APP_ICON := $(TOPDIR)/$(ICON)
endif

ifeq ($(strip $(NO_SMDH)),)
	export _3DSXFLAGS += --smdh=$(CURDIR)/$(TARGET).smdh
endif

ifneq ($(ROMFS),)
	export _3DSXFLAGS += --romfs=$(CURDIR)/$(ROMFS)
endif

.PHONY: $(BUILD) clean all

#---------------------------------------------------------------------------------
all: $(BUILD)

$(BUILD):
	@[ -d $@ ] || mkdir -p $@
	@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile

#---------------------------------------------------------------------------------
clean:
	@echo clean ...
	@rm -fr $(BUILD) $(TARGET).3dsx $(OUTPUT).smdh $(TARGET).elf


#---------------------------------------------------------------------------------
else

DEPENDS	:=	$(OFILES:.o=.d)

#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
ifeq ($(strip $(NO_SMDH)),)
$(OUTPUT).3dsx	:	$(OUTPUT).elf $(OUTPUT).smdh
else
$(OUTPUT).3dsx	:	$(OUTPUT).elf
endif

$(OFILES_SOURCES) : $(HFILES)

$(OUTPUT).elf	:	$(OFILES)

#---------------------------------------------------------------------------------
# you need a rule like this for each extension you use as binary data
#---------------------------------------------------------------------------------
%.bin.o	%_bin.h :	%.bin
#---------------------------------------------------------------------------------
	@echo $(notdir $<)
	@$(bin2o)

#---------------------------------------------------------------------------------
# rules for assembling GPU shaders
#---------------------------------------------------------------------------------
define shader-as
	$(eval CURBIN := $*.shbin)
	$(eval DEPSFILE := $(DEPSDIR)/$*.shbin.d)
	echo "$(CURBIN).o: $< $1" > $(DEPSFILE)
	echo "extern const u8" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"_end[];" > `(echo $(CURBIN) | tr . _)`.h
	echo "extern const u8" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> `(echo $(CURBIN) | tr . _)`.h
	echo "extern const u32" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> `(echo $(CURBIN) | tr . _)`.h
	picasso -o $(CURBIN) $1
	bin2s $(CURBIN) | $(AS) -o $*.shbin.o
endef

%.shbin.o %_shbin.h : %.v.pica %.g.pica
	@echo $(notdir $^)
	@$(call shader-as,$^)

%.shbin.o %_shbin.h : %.v.pica
	@echo $(notdir $<)
	@$(call shader-as,$<)

%.shbin.o %_shbin.h : %.shlist
	@echo $(notdir $<)
	@$(call shader-as,$(foreach file,$(shell cat $<),$(dir $<)$(file)))


-include $(DEPENDS)

#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------