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-- `Button`
-- Button used in `Menu`
Button = {
text = "",
focused = false,
x = 0,
y = 0,
sprite,
quads,
delay = 2,
blinker = 1,
parent
}
function Button:new(parent)
local o = {}
setmetatable(o, self)
self.__index = self
o.parent = parent
o.sprite, o.quads = parent:getSheet()
return o
end
function Button:setText(text)
self.text = text or ""
return self
end
function Button:setPosition(x, y)
self.x = x or 0
self.y = y or 0
return self
end
function Button:getPosition() return self.x,self.y end
function Button:focus(next)
self.focused = true
return true
end
function Button:blur()
self.focused = false
end
function Button:active() end
function Button:blink()
self.blinker = 0
end
function Button:set(name, func)
if type(name) == "string" and type(func) == "function" then
self[name] = func
end
return self
end
function Button:draw(scale)
local x,y = self:getPosition()
local blinker = math.floor(self.blinker*4)
local quad = self.quads
local sprite = self.sprite
if blinker%2 == 0 then
love.graphics.setColor(255, 255, 255, 255)
else
love.graphics.setColor(255, 100, 100, 255)
end
love.graphics.draw(sprite, quad.button.normal, x*scale, y*scale, 0, scale, scale)
if self.focused then
love.graphics.draw(sprite, quad.arrow_l, (x+54+math.floor(self.delay))*scale, (y+5)*scale, 0, scale, scale)
love.graphics.draw(sprite, quad.arrow_r, (x-2-math.floor(self.delay))*scale, (y+5)*scale, 0, scale, scale)
end
love.graphics.setFont(Font)
love.graphics.printf(self.text, (x+2)*scale, (y+4)*scale, 54, "center", 0, scale, scale)
end
function Button:update(dt)
self.delay = self.delay + dt
if self.delay > Button.delay then -- Button.delay is initial
self.delay = self.delay - Button.delay
end
if self.blinker < Button.blinker then -- Button.blink is initial
self.blinker = self.blinker + dt
end
end
function Button:controlpressed(set, action, key)
if action == "attack" and self.focused then
self:active()
end
end
function Button:controlreleased(set, action, key) end
return Button
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