Term API

w,h = term.getSize()
col = { ["white"]=1, ["orange"]=2, ["magenta"]=4, ["lightblue"]=8, ["yellow"]=16, ["lime"]=32, ["pink"]=64, ["gray"]=128, ["lightgray"]=256, ["cyan"]=512, ["purple"]=1024, ["blue"]=2048, ["brown"]=4096, ["green"]=8192, ["red"]=16384, ["black"]=32768 }

function swrite( str, x, y, color )
	term.setCursorPos(x,y)
	term.setTextColor(col[color])
	term.write(str)
end

function swritecenter( str, y, color )
	term.setCursorPos((w/2-#str/2)+1,y)
	term.setTextColor(col[color])
	term.write(str)
end

function drawbox( str, x1, x2, y1, y2, strcol, color )
	term.setCursorPos(x1,y1)
	term.setBackgroundColor(col[color])
	term.setTextColor(col[strcol])
	local bw = x2-x1
	local bh = y2-y1
	local bstr = " "
	while #bstr < bw do
		bstr = bstr.." "
	end
	for i=1,bh do
		term.setCursorPos(x1,y1+i-1)
		term.write(bstr)
	end
	term.setCursorPos(x1+bw/2-#str/2,y1+bh/2)
	term.write(str)
	term.setBackgroundColor(col["black"])
	return { [1]=x1, [2]=x2, [3]=y1, [4]=y2 }
end

function press( but, event )
	local e,pr1,pr2,pr3 = os.pullEvent()
	if e == event then
		if pr2 >= but[1] and pr2 < but[2] and pr3 >= but[3] and pr3 < but[4] then
			return true
		else
			return false
		end
	end
end