PNGFILES := $(shell find png/sprite -type f -name '*.png')
IMGFILES := $(PNGFILES:%.png=%.2bpp)

COLLFILES := $(shell find png/map -type f -name '*_coll.png')
BUILT_COLLFILES := $(COLLFILES:%_coll.png=%.s)

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

.PHONY: clean

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

$(OFILES): $(IMGFILES)

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

png/map/%.s: png/map/%_coll.png
	python scripts/generate_coll_map.py -o $@ $<

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

clean:
	rm -f is.gb is.gb.sym $(IMGFILES) $(OFILES) $(BUILT_COLLFILES)