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-- `Header`
-- It dances!
Header = {
x = 0,
y = 0,
text = "",
parent,
bounce = 2,
}
function Header:new(parent)
local o = {}
setmetatable(o, self)
self.__index = self
o.parent = parent
return o
end
function Header:setText(text)
self.text = text or ""
return self
end
function Header:setPosition(x, y)
self.x = x or 0
self.y = y or 0
return self
end
function Header:getBounce(f)
local f = f or 1
return math.sin(self.bounce*f*math.pi)
end
function Header:getPosition() return self.x,self.y end -- gives x,y of Element
function Header:focus(next)
if next and self.parent then
self.parent:next()
else
self.parent:previous()
end
end
function Header:blur() end -- Called when Element loses focus
-- 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
-- Controller callbacks
function Header:controlpressed(set, action, key) end
function Header:controlreleased(set, action, key) end
return Header
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