ifneq (, $(shell which clang))
	CC:=clang
else ifneq (, $(shell which gcc))
	CC:=gcc
else ifneq (, $(shell which cc))
	CC:=cc
else
	$(error "No C compiler found (!)")
endif

CFLAGS:=-Wall -Wextra -Wpedantic -std=c99 -g3
LDFLAGS:=-I/usr/local/include/ -I/usr/X11R6/include/ -I./src/raylib/src/
LDLIBS:=-Lobj/ -lraylib -lGL -lm -lpthread -lX11 -ldl -lrt
DIRS:=obj bin
BINS:=bin/retris

.PHONY: all dirs clean

all: dirs $(BINS)

run: dirs $(BINS)
	bin/retris

bin/retris: obj/retris.o obj/libraylib.a
	$(CC) $(CFLAGS) $(LDFLAGS) $(LDLIBS) $^ -o $@

obj/%.o: src/%.c src/%.h
	$(CC) $(CFLAGS) $(LDFLAGS) -c $< -o $@
obj/%.o: src/%.c
	$(CC) $(CFLAGS) $(LDFLAGS) -c $< -o $@
obj/libraylib.a: src/raylib/src/*
	mkdir -p src/raylib/build
	cmake -DBUILD_EXAMPLES=OFF -S src/raylib -B src/raylib/build
	$(MAKE) -C src/raylib/build -j8
	cp src/raylib/build/raylib/libraylib.a obj/

dirs: $(DIRS)
$(DIRS):
	@mkdir -p $(DIRS)

clean:
	rm -rf bin/* obj/* src/raylib/build
# fast clean - raylib rarely, if ever, needs to be cleaned
fclean:
	rm -f bin/* obj/*.o