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--- `Header`
-- Swinging title.
Header = {
parent = --[[not.Menu]]nil,
x = 0,
y = 0,
text = "",
bounce = 2,
}
-- `Header` is a child of `Element`.
require "element"
Header.__index = Header
setmetatable(Header, Element)
function Header:new (parent)
local o = setmetatable({}, self)
o.parent = parent
return o
end
function Header:setText (text)
self.text = text or ""
return self
end
function Header:getBounce (f)
local f = f or 1
return math.sin(self.bounce*f*math.pi)
end
-- LÖVE2D callbacks
function Header:draw (scale)
local angle = self:getBounce(2)
local dy = self:getBounce()*4
local x,y = self:getPosition()
love.graphics.setColor(255,255,255,255)
love.graphics.setFont(Bold)
love.graphics.printf(string.upper(self.text),x*scale,(y+dy)*scale,400,"center",(angle*5)*math.pi/180,scale,scale,200,12)
end
function Header:update (dt)
self.bounce = self.bounce + dt*0.7
if self.bounce > Header.bounce then -- Header.bounce is initial
self.bounce = self.bounce - Header.bounce
end
end
return Header
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