PYTHON ?= python

# Graphics
SPRITE_PNG := $(shell find png/sprite -type f -name '*.png')

MAP_PNG    := $(shell find png/map -type f -name '*.png' -not -name '*_coll.png')
MAP_COLL   := $(shell find png/map -type f -name '*_coll.png')

# Graphics (generated)
MAP_S	    := $(MAP_PNG:%.png=%.s)
MAP_INC     := $(MAP_PNG:%.png=%.inc)
SPRITE_2BPP := $(SPRITE_PNG:%.png=%.2bpp)

# Code
SFILES := $(shell find src -type f -name '*.s')
OFILES := $(SFILES:%.s=%.o) $(MAP_S:%.s=%.o)

.PHONY: clean

is.gb is.gb.sym: $(OFILES)
	rgblink -o $@ -n $@.sym $(OFILES)
	rgbfix -v $@

$(OFILES): $(MAP_INC)
$(OFILES): $(SPRITE_2BPP)

%.o: %.s
	rgbasm -i inc -o $@ $<

png/map/%.s png/map/%.inc: png/map/%.png png/map/%_coll.png
	$(PYTHON) scripts/generate_map.py $<

png/sprite/%.2bpp: png/sprite/%.png
	rgbgfx -o $@ $<

clean:
	rm -f is.gb is.gb.sym $(OFILES) $(MAP_S) $(MAP_INC) $(SPRITE_2BPP)