io.stdout:setvbuf("no")

local shader 
local text
local page
local tf
function jin.core.onLoad()
	local font_shader = jin.filesystem.read("font.shader")
	shader = jin.graphics.newShader(font_shader)
	local bitmap = jin.graphics.newBitmap("font2.png")
	local tfdata = jin.graphics.newTTFData("font.ttf")
	tf = tfdata:newTTF(15)
	page = tf:typeset("this is a test")
end

function jin.core.onEvent(e)
    if e.type == "Quit" then 
        jin.core.stop()
    end
end

function jin.core.onDraw()
	jin.graphics.useShader(shader)
	jin.graphics.setFont(tf)
	jin.graphics.print("你好error: this is a test", 0, 0, 16, 0)
	jin.graphics.unsetFont()
	jin.graphics.unuseShader()
end