GAMEFILES=$(wildcard internal/game/*.go)
COORDFILEs=$(wildcard internal/coordinator/*.go)
PROG=snengame
#set variables
GIT_COMMIT := $(shell git rev-list -1 HEAD)
ifeq ($(PREFIX),) # PREFIX is environment variable, but if it is not set, then set default value
	PREFIX := /usr/local
endif

$(PROG): $(GOFILES)
	go build -ldflags "-X main.GitCommit=$(GIT_COMMIT)"
client: $(GAMEFILES) $(wildcard cmd/client/*.go)
	go build -ldflags "-X main.GitCommit=$(GIT_COMMIT)" ./cmd/client
server: $(GAMEFILES) $(wildcard cmd/server/*.go)
	go build -ldflags "-X main.GitCommit=$(GIT_COMMIT)" ./cmd/server
engine: $(GAMEFILES)
	go build -ldflags "-X main.GitCommit=$(GIT_COMMIT)" ./cmd/engine

clean: 
	rm -f client server engine
run: engine
	./engine
install: $(SNENGAME)
	install -d $(DESTDIR)$(PREFIX)/bin
	install -m 755 $(PROG) $(DESTDIR)$(PREFIX)/bin