.PHONY: www/js/escalator.js

www/js/escalator.js: $(shell find src -name "*.js")
	mkdir -p www/js
	cat \
		src/open.js \
		src/screen.js \
		src/scene.js \
		src/box.js \
		src/platform.js \
		src/menu.js \
		src/game.js \
		src/main.js \
		src/close.js \
		> www/js/escalator.js